• 20th Century Fox – William Fox

• A. G. Edwards – Albert Gallatin Edwards
• A&M Records – Herb Alpert and Jerry Moss
• A&W Restaurants – Roy Allen and Frank Wright
• Abbott Laboratories – Wallace Calvin Abbott (1888)
• Abercrombie & Fitch – David T. Abercrombie and Ezra Fitch
• Abrams Air Craft – Talbert Abrams
• Abt Sportsline – Johann Abt
• Adidas – Adi Dassler (Adolf Dassler)
• Aditya Birla Group – Ghanshyam Das Birla
• Agusta – Giovanni Agusta
• AGV – Gino Amisano (Amisano Gino Valenza)
• Air Jordan – Michael Jordan
• Aitken Spence – Patrick Gordon Spence, Edward Aitken and S.R. Aitken
• Ajo Motorsport – Aki Ajo
• ALAN – Alberto and Annamaria, children of founder Falconi Lodovico
• Albert Heijn and Ahold (Albert Heijn Holdings) – Albert Heijn
• Albertsons – Joe Albertson
• Aldi – Theo and Karl Albrecht (Albrecht Discount)
• Alessi – Giovanni Alessi
• Alex von Falkenhausen Motorenbau – Alex von Falkenhausen
• Alltech — Aoife Louise Lyons, daughter of company founder Pearse Lyons
• Alza – Alex Zaffaroni
• Amdahl Corporation – Gene Amdahl
• AMG – Hans Werner Aufrecht and Erhard Melcher (Aufrecht Melcher Großaspach)
• Amon – Chris Amon
• Amstrad – Alan Sugar (Alan Michael Sugar Trading)
• Anatra – Artur Antonovich Anatra
• Andrea Moda Formula – Andrea Sassetti
• Angi (originally Angie's List) – Angie Hicks
• Anheuser-Busch – Lilly and Eberhard Anheuser, and Adolphus Busch
• Ann Summers – Annice Summers, secretary of founder Michael Caborn-Waterfield
• Ansaldo – Giovanni Ansaldo
• The Anschutz Corporation – Philip Anschutz
• Ansett Australia – Reg Ansett
• Ansett Pioneer – Reg Ansett
• Antonov – Oleg Antonov
• Arai Helmet – Hirotake Arai
• Archer Daniels – George A. Archer and John W. Daniels
• Armani – Giorgio Armani
• Arrows – Franco Ambrosio, Alan Rees, Jackie Oliver, Dave Wass, and Tony Southgate
• ARTA – Aguri Suzuki (Autobacs Racing Team Aguri)
• Arzani-Volpini – Egidio Arzani and Gianpaolo Volpini
• AS Watson – Alexander Skirving Watson
• Aston Butterworth – Bill Aston and Archie Butterworth
• Aston Martin – Lionel Martin
• Audemars Piguet - Jules Louis Audemars and Edward Auguste Piguet
• Audi – August Horch (audi is Latin for horch which means listen in English)
• Austin Motor Company – Herbert Austin
• Avery Dennison Corporation – R. Stanton Avery
• AviaBellanca Aircraft – Giuseppe Mario Bellanca

• B&H Photo Video – Blimie and Herman Schreiber
• B&Q – Richard Block and David Quayle
• Babolat – Pierre Babolat (1842–1892)
• Bacardi – Facundo Bacardi
• Baedeker's – Karl Baedeker
• Bajaj Auto – Jamnalal Bajaj, India
• Baker Curb Racing – Gary Baker and Mike Curb
• Baker International (to Baker Hughes) – Reuben C. Baker
• Baldwin Locomotive Works – Matthias W. Baldwin
• Balenciaga – Cristóbal Balenciaga
• Ball Corporation – the Ball Brothers
• Ballet Rambert – Dame Marie Rambert
• Balmain - Pierre Balmain
• Bandini Automobili – Ilario Bandini
• Bang & Olufsen – Peter Bang and Svend Olufsen
• Bankable Productions – Tyra Banks
• Bannatyne – Duncan Bannatyne
• Banta Corporation – George Banta, Sr.
• Barclays – James Barclay
• Barilla Group – Pietro Barilla
• Barings Bank – Francis Baring and John Baring
• Barnardo's – Thomas John Barnardo
• J. M. Barnardo & Son – John Michael Barnardo
• Barnes & Noble – William Barnes and G. Clifford Noble
• Barneys New York – Barney Pressman
• Bashas' – Eddie Basha, Sr.
• Baskin-Robbins – Burt Baskin and Irv Robbins
• Bass & Co – William Bass
• Bauknecht – Gottlob Bauknecht
• Bausch & Lomb – John Jacob Bausch and Henry Lomb
• Bayer – Friedrich Bayer
• BBS – Heinrich Baumgartner and Klaus Brand (Baumgartner Brand Schiltach)
• BEA Systems – Bill Coleman, Ed Scott, and Alfred Chuang
• Bechtel – Warren A. Bechtel
• Beckman Coulter – Arnold O. Beckman
• Beck's – Heinrich Beck (1873)
• Beecham Group – Thomas Beecham
• Behra – Jean Behra
• Beiersdorf – Paul Carl Beiersdorf
• Belk – William Henry Belk
• Bell Aircraft – Lawrence Bell
• Bell Telephone Company, Bell System – Alexander Graham Bell
• Bellasi – Guglielmo Bellasi
• Ben & Jerry's – Ben Cohen and Jerry Greenfield
• Benbros – Jack and Nathan Beneson (Beneson Brothers)
• Benelli – Teresa Benelli
• Benetton Group – Luciano Benetton
• Bentalls – Frank Bentall
• Bentley – W. O. Bentley
• Benz & Cie. (later Daimler-Benz) – Karl Benz
• Beretta – Bartolomeo Beretta
• Beriev – Georgy Beriev
• Bertelsmann – Carl Bertelsmann
• Berluti – Alessandro Berluti
• Berton – Pieter Bervoets and Ron Ton
• Bertone – Giovanni Bertone
• Bialetti – Alfonso Bialetti
• Bianchi Bicycles – Edoardo Bianchi
• Bic – Marcel Bich
• Bickerton – Harry Bickerton
• Bimota – Valerio Bianchi, Giuseppe Morri, and Massimo Tamburini
• Bing Lee – Bing Lee (company founder)
• Bird's Custard – Alfred Bird
• Birds Eye – Clarence Birdseye
• Black & Decker (to Stanley Black & Decker) – S. Duncan Black and Alonzo G. Decker
• Blohm + Voss – Hermann Blohm and Ernst Voss
• Bloomberg L.P. – Michael Bloomberg
• Bloomingdale's – Joseph and Lyman G. Bloomingdale
• Blumhouse Productions – Jason Blum
• Boardman Bikes – Chris Boardman
• Bob Bondurant School of High Performance Driving – Bob Bondurant
• Bocar – Bob Carnes
• Boddingtons – Henry Boddington
• The Bodley Head – in honour of Thomas Bodley, whose bust stood above the founders' shop
• Boehringer Ingelheim – Alb. Boehringer [de]
• Boeing – William Boeing
• Bölkow – Ludwig Bölkow
• Bombardier Inc. – Joseph-Armand Bombardier
• Bomgar – Joel Bomgaars
• Bonhams – Walter Bonham
• Bonnier Group – Gerhard Bonnier
• Boolell Advisory Mauritius - Aditi Boolell
• Booth's Gin – John Booth
• Boots – Jesse Boot
• Borders Group – Tom and Louis Borders
• Boro – Bob and Rody Hoogenboom
• Bosch – Robert Bosch
• Bose Corporation – Amar Bose, Indian
• Brabham – Jack Brabham
• Brabus – Klaus Brackmann and Bodo Buschmann
• Brad Jones Racing – Brad Jones
• Brains Brewery – Samuel Arthur Brain
• Braun – Max Braun (engineer) [de]
• Brawn GP – Ross Brawn
• Brentano's – August Brentano
• Brewco Motorsports – Clarence and Tammy Brewer
• Brian Hart Ltd. – Brian Hart
• Bridgestone – Shojiro Ishibashi; the name comes from a calque translation and transposition of "ishibashi," meaning "stone bridge"
• Briggs & Stratton – Stephen Foster Briggs and Harold M. Stratton
• Britek Motorsport – Jason Bright
• Brooke Bond – Arthur Brooke
• Brooks Locomotive Works – founded by Horatio G. Brooks
• Brooks Sports – anglicized version of "Bruchs," the maiden name of founder Morris Goldberg's wife
• Brun Motorsport – Walter Brun
• Bryant and May – William Bryant and Francis May
• Bugatti – Ettore Bugatti
• Buick – David Dunbar Buick
• Buitoni – Giovanni Battista Buitoni
• Bulgari – Italianized version of the family name of company founder Sotirios Voulgaris
• Bulova – Joseph Bulova
• Burberry – Thomas Burberry
• BVD – Messrs. Bradley, Voorhees and Day

• C. H. Robinson Worldwide – Charles Henry Robinson
• C&A – Clemens and August Brenninkmeijer
• Cabela's – Dick Cabela
• Cadbury – John Cadbury
• Cadillac – Antoine Laumet de La Mothe, sieur de Cadillac, founder of Detroit, Michigan
• Cagiva – Giovanni Castiglioni (Castiglioni Giovanni Varese)
• Callaway Cars – Reeves Callaway
• Callaway Golf Company – Ely R. Callaway Jr.
• Calvin Klein – Calvin Klein
• Cammell Laird – Charles Cammell and William Laird
• Campagnolo – Tullio Campagnolo
• Campari – Davide Campari
• Campbell Soup Company – Joseph A. Campbell
• Canon – see Kwanon
• Cargill – William Wallace Cargill
• Carl Zeiss AG – Carl Zeiss
• Carlyle Group – Thomas Carlyle (indirectly, via the Carlyle Hotel)
• Casio – Tadao Kashio
• Cassell – John Cassell
• Celine – Celine Vipiana
• Cerruti 1881 – Nino Cerruti
• Chanel – Gabrielle "Coco" Chanel

Dr.Chari's [Sathish Chari]

• Charles Schwab Corporation – Charles R. Schwab
• Charles Wells Ltd (now Wells & Young's Brewery) – Charles Wells
• Chase National Bank (to Chase Manhattan Bank and JPMorgan Chase & Co.) – Salmon P. Chase
• Chevrolet – Louis Chevrolet
• Chip Ganassi Racing – Chip Ganassi
• Christian Dior – Christian Dior
• Christian Salvesen – Christian Salvesen
• Christie's – James Christie
• Chrysler – Walter Chrysler
• Citroën – André Citroën
• Cizeta – Claudio Zampolli
• CKE Restaurants – founded as Carl Karcher Enterprises
• Clarks – Cyrus and James Clark
• Claud Butler – Claud Butler
• Clif Bar – Clifford Erickson (father of founder Gary Erickson)
• Cokin – Jean Coquin
• Coles – George Coles
• Colgate-Palmolive – William Colgate
• Collins Radio Company – Arthur A. Collins
• Colnago – Ernesto Colnago
• Coloni – Enzo Coloni
• Colt's Manufacturing Company, Colt Defense, Colt Canada – Samuel Colt
• Condé Nast Publications – Condé Montrose Nast
• Connolly Leather – John Connolly
• Cooper Car Company – Charles and John Cooper
• Coors Brewing Company, Adolph Coors Company – Adolph Coors
• Cord Automobile – Errett Lobban Cord
• Corel – Michael Cowpland (Cowpland Research Laboratory)
• Costa Coffee – Bruno Costa and Sergio Costa
• Cosworth – Mike Costin and Keith Duckworth
• Courage Compétition – Yves Courage
• Cox Enterprises – James M. Cox
• Cox Models – Roy Cox
• Craigslist - Craig Newmark
• Crane & Co. – Stephen Crane or the Crane family
• Cray Research – Seymour Cray
• Crumpler – Stuart Crumpler (co-founder)
• Cummins – Clessie Cummins
• Curtiss Aeroplane and Motor Company (to Curtiss-Wright) – Glenn Curtiss
• Cushman & Wakefield – J.Clydesdale Cushman and Bernard Wakefield

• D. G. Yuengling & Son – David Yuengling
• Daimler-Benz (later DaimlerChrysler, now Daimler AG) – Gottlieb Daimler and Karl Benz
• Dallara – Giampaolo Dallara
• Damiani – Enrico Grassi Damiani
• Danelectro – Nathan Daniel
• Dangote Group – Aliko Dangote
• Danjaq – Dana Broccoli and Jacqueline Saltzman, wives of company founders Albert R. Broccoli and Harry Saltzman
• d’Antin MotoGP – see Pramac d'Antin
• Danone – nickname of Daniel, son of Isaac Carasso
• Dargaud – Georges Dargaud
• Dassault Group – Marcel Dassault
• Datsun – Kenjiro Den, Rokuro Aoyama, and Meitaro Takeuchi
• Dauer Sportwagen – Jochen Dauer
• David Jones (department store) – David Jones
• David Lloyd Leisure – David Lloyd
• David Price Racing – David Price
• Davis Polk - John W. Davis, a defender of racial segregation and state control of education.^{[1][2][3][4][5][6]}
• DBZ Guitars – Dean B. Zelinsky
• De Agostini – Giovanni De Agostini
• De Tomaso – Alejandro de Tomaso
• Dean & DeLuca – Joel Dean and Giorgio DeLuca
• Dean Guitars – Dean Zelinsky
• Debenhams – William Debenham
  • formerly Debenham & Freebody – Debenham and Clement Freebody
• Deere & Company – John Deere
• Dell – Michael Dell
• Deloitte – William Welch Deloitte
• DeLorean Motor Company – John DeLorean
• DHL Express – Adrian Dalsey, Larry Hillblom, and Robert Lynn
• Dick Clark Productions – Dick Clark
• Dick Johnson Racing – Dick Johnson
• Dick Smith – Dick Smith
• Dick's Sporting Goods – Dick Stack
• Dillard's – William T. Dillard
• Disney – Walt Disney
• Driscoll's – Dick Driscoll
• Dodge – John and Horace Dodge
• Dolby Laboratories – Ray Dolby
• Dolce & Gabbana – Domenico Dolce and Stefano Gabbana
• Dollond & Aitchison – John and Peter Dollond and James Aitchison
• Don Bluth Productions – Don Bluth
• Double R Racing, formerly Räikkönen Robertson Racing – Kimi Räikkönen and Steve Robertson
• Douglas Aircraft Company (to McDonnell Douglas) – Donald Wills Douglas, Sr.
• The Dow Chemical Company – Herbert Dow
• Dow Jones & Company – Charles Dow and Edward Jones
• D'Oyly Carte Opera Company – Richard D'Oyly Carte
• Dr. Bashi – Golbarg Bashi
• Dr. Bronner's Magic Soaps – Emanuel Bronner
• Dr. Oetker – August Oetker
• Ducati – Antonio Cavalieri Ducati (1853–1927)
• Duesenberg – Fred and August Duesenberg
• Duke Energy – James Buchanan Duke
• Duke Video – Peter Duke
• DuMont Television Network & DuMont Laboratories – Allen B. DuMont
• Dunlop – John Boyd Dunlop
• Dunlop Manufacturing – Jim Dunlop
• DuPont – Eleuthère Irénée du Pont
• Dürr AG – Paul Dürr
• Dyson – James Dyson

• Earnhardt Ganassi Racing with Felix Sabates – Dale Earnhardt (Sr.), Chip Ganassi, Felix Sabates
• Eastman Kodak – George Eastman
• Easton – Doug Easton
• Eatons – Timothy Eaton
• Eddie Bauer – Eddie Bauer
• Eddie Jordan Racing – Eddie Jordan
• Eddie Stobart – see Stobart Group
• Edelbrock – Vic Edelbrock
• Edison Records – Thomas Edison
• Eggenberger Motorsport, Rudi Eggenberger
• Eli Lilly and Company – Eli Lilly
• Ellis Briggs – Leonard Ellis and Thomas Briggs
• Ericsson – Lars Magnus Ericsson
• Ermenegildo Zegna – Ermenegildo Zegna
• Ernst Paul Lehmann Patentwerk
• Estée Lauder Companies – Estée Lauder
• EuroBrun – Walter Brun
• Emil Genchev Group LTD - Emil Genchev

• Fabbri Group – Romolo Fabbri
• Faber and Faber – Geoffrey Faber
• Faber-Castell – Kaspar Faber
• Falabella – Salvatore Falabella
• Fazer – Karl Fazer
• FB Mondial – Fratelli Boselli
• Felt Bicycles – Jim Felt
• Fender – Leo Fender
• Fendi – Edoardo Fendi
• Ferguson Research – Harry Ferguson
• Ferragamo – Salvatore Ferragamo
• Ferranti – Sebastian Ziani de Ferranti
• Ferrari – Enzo Ferrari
• Ferrero – Pietro Ferrero
• Ferretti Group – Alessandro and Norberto Ferretti
• Fielmann – Günther Fielmann
• Filippi Boats – Filippi Lido
• Fioravanti – Leonardo Fioravanti
• Firestone – Harvey S. Firestone
• Fisher-Price – Herman Fisher and Irving Price
• Fitch Ratings – John Knowles Fitch
• Fittipaldi Automotive – Emerson and Wilson Fittipaldi
• Focke-Wulf – Henrich Focke and Georg Wulf (1895–1927)
• Fokker – Anthony Fokker
• Forbes – B. C. Forbes
• Ford Motor Company – Henry Ford
• Forti – Guido Forti
• Fortinos – John Fortino
• Fortnum & Mason – William Fortnum and Hugh Mason
• Fox Racing – Geoff Fox
• Fox Racing Shox – Bob Fox
• Franck Muller – Franck Muller
• Frank Williams Racing Cars – Frank Williams
• Franklin Mint – believed to be named in honor of Benjamin Franklin
• FranklinCovey – Benjamin Franklin and Stephen Covey
• Frazer Nash – Archibald Frazer-Nash
• Fred Flare – Fred Astaire
• Freisinger Motorsport – Manfred Freisinger
• Fresenius – Eduard Fresenius
• Frost French – Sadie Frost and Jemima French
• Frost and Sullivan – Lore A. Frost and Dan L. Sullivan
• Fuller, Smith & Turner – John Fuller, Henry Smith and John Turner!

• Galen Institute – health care think tank named after Galen, a prominent Greek physician
• Galles Racing – Rick Galles
• Galmer – Rick Galles and Alan Mertens
• Gannett Company – Frank Gannett
• Garmin – Gary Burrell and Dr. Min Kao
• Gartner – Gideon Gartner
• Garry Rogers Motorsport – Garry Rogers
• Gemballa – Uwe Gemballa
• George Dickel – George A. Dickel
• Gerber Products Company – Daniel Frank Gerber
• Getty Images – Mark Getty
• Getty Oil – John Paul Getty
• Ghirardelli Chocolate Company – Domingo Ghirardelli
• Giannini – Tranquillo Giannini
• Gibson Guitar Corporation – Orville Gibson
• Gibson Motor Sport – Fred Gibson
• Gilbarco – Charles Gilbert and John Barker (Gilbert & Barker Manufacturing Co.)
• Gilera – Giuseppe Gilera
• Gillet – Tony Gillet
• Gillette – King C. Gillette
• Girard-Perregaux – Constant Girard and Marie Perregaux
• Gitzo – Arsène Gitzhoven
• Givenchy – Hubert de Givenchy
• Glenn L. Martin Company (to Lockheed Martin) – Glenn Luther Martin
• Glenn Seton Racing – Glenn Seton
• Glock Ges.m.b.H. – Gaston Glock
• GN – H.R. Godfrey and Archibald Frazer Nash
• Godin – Robert Godin
• Godrej Group – Ardeshir Godrej and Pirojsha Burjorji Godrej
• Goldman Sachs – Marcus Goldman and Samuel Sachs
• Goldwyn Picture Corporation – Samuel Goldfish, Edgar and Archibald Selwyn
• Goodrich Corporation – Benjamin Goodrich
• Goodyear Tire and Rubber Company – Charles Goodyear
• GoogleIsHuman - Christian Google
• Gordon's Gin – Alexander Gordon
• Gorman – Lisa Gorman
• Gottlieb – David Gottlieb
• Greggs – John Gregg
• Gresini Racing – Fausto Gresini
• Gretsch – Friedrich Gretsch
• Grundig – Max Grundig
• GT Bicycles – Gary Turner
• Gucci – Guccio Gucci
• Guinness – Arthur Guinness
• Gumpert – Roland Gumpert
• Guthy-Renker – Bill Guthy and Greg Renker
• Guzzi – Carlo Guzzi [it]

• H-E-B – Howard Edward Butt (founder's son; turned the family grocery store into a supermarket chain)
• H. J. Heinz Company – Henry John Heinz
• H.K. Porter, Inc. – Henry Kirke Porter
• H&R Block – Henry W. Bloch and Richard Bloch
• Haas Automation – Gene Haas
• Haas Lola – Carl Haas
• Haas Outdoors, Inc. – Toxey Haas
• Hachette Filipacchi Médias – Louis Hachette and Daniel Filipacchi
• Halliburton – Erle P. Halliburton
• Halls, Hallmark Cards – Joyce Hall
• Hamann Motorsport – Richard Hamann
• Hamish Hamilton – Jamie Hamilton
• Hamleys – William Hamley
• Hämmerli – Johann Ulrich Hämmerli
• Hammond Organ – Laurens Hammond
• Hanna-Barbera Productions – William Hanna and Joseph Barbera
• Haribo – Hans Riegel (and produced in Bonn)
• Harley-Davidson – William S. Harley and Arthur Davidson
• Harman Kardon – Sidney Harman and Bernard Kardon
• Haro Bikes – Bob Haro
• HarperCollins – James Harper and William Collins
• Harrah's Entertainment – William F. Harrah
• Harrods – Charles Henry Harrod
• Hartmann Gruppe [de] – Paul Hartmann (entrepreneur) [de]
• Harvey Nichols – Benjamin Harvey and James Nichols
• Harvey Norman – Gerald Harvey and Ian Norman
• Hasbro – the Hassenfeld Brothers
• Hasegawa Corporation – Suguro Hasegawa
• Hasselblad – Victor Hasselblad
• Hatchards – John Hatchard
• Heal's – John Harris Heal
• Hearst Corporation – William Randolph Hearst
• Heckler & Koch – Edmund Heckler and Theodor Koch
• Heineken International – Gerard Adriaan Heineken
• Heinemann – William Heinemann
• Heinz – Henry J. Heinz
• Hendrick Motorsports – Rick Hendrick
• Henkel – Friedrich Karl Henkel
• Hennessey Performance – John Hennessey
• Hennessy – Richard Hennessy
• The Herb Chambers Companies - Herb Chambers
• Herpa – Wilhelm Hergenröther (Hergenröther und Patente)
• The Hershey Company – Milton Hershey
• Hesburger – Heikki Salmela
• Hesketh Racing, Hesketh Motorcycles – Alexander Fermor-Hesketh, 3rd Baron Hesketh
• Heuer – see TAG Heuer
• Hewitt Associates – Ted Hewitt
• Hewlett-Packard – William Hewlett and David Packard
• Hillman – William Hillman
• Hilton Hotels – Conrad Hilton
• HKS – Hiroyuki Hasegawa and Goichi Kitagawa (plus Sigma Automotive)
• Hodder & Stoughton – Matthew Hodder and Thomas Wilberforce Stoughton
• Hohner – Matthias Hohner
• Holland & Barrett – William Holland and Alfred Slapps Barrett
• Holman Moody – John Holman and Ralph Moody
• Honda – Soichiro Honda
• Honeywell – Mark Honeywell
• Horlicks – James Horlick and William Horlick
• Hormel – George A. Hormel
• Hornby Railways – Frank Hornby
• Hoshino Impul – Kazuyoshi Hoshino
• House of Fabergé – Gustav Faberge
• Hovnanian Enterprises – Kevork Hovnanian
• Hoyt Archery – Earl Hoyt Sr.
• Hughes Aircraft, Hughes Tool Company (to Baker Hughes), Hughes Airwest – Howard Hughes
• Hugo Boss – Hugo Boss
• Humber – Thomas Humber
• Huntley and Palmers – Joseph Huntley and George Palmer
• Hy-Vee – Charles Hyde and David Vredenburg. The company was originally incorporated as Hyde & Vredenburg, Inc.; Hy-Vee was adopted as a marketing brand in 1952 and the corporate name in 1963.

• Icahn Enterprises – Carl Icahn
• IKEA - Ingvar Kamprad from Elmtaryd in Agunnaryd
• illy – Andrea Illy
• Ilmor – Mario Illien and Paul Morgan
• Ilyushin – Sergey Ilyushin
• Ind Coope – Edward Ind and Octavius Coope
• Ingle & Rhode – Tim Ingle and David Rhode
• Innocenti – Ferdinando Innocenti
• Irmscher – Günther Irmscher
• Islabikes – Isla Rowntree
• Italdesign Giugiaro – Giorgetto Giugiaro
• Isaac Imade Group – Isaac Imade

• J. Barbour & Sons – John Barbour
• J. C. Bamford – Joseph Cyril Bamford
• JCPenney – James Cash Penney
• J.J. Newberry – John Josiah Newberry
• J.P. Morgan & Co. – J. P. Morgan
• Jack Daniel Distillery – Jack Daniel
• Jack Link's Beef Jerky – John 'Jack' Link
• Jackson Guitars – Grover Jackson
• Jacksons of Piccadilly – Robert Jackson
• Jacob's – William and Robert Jacob
• Jacuzzi – the Jacuzzi brothers
• Jafco – Sidney Z. Jaffe
• James Purdey and Sons – James Purdey
• JBL – James Bullough Lansing
• Jean Coutu Group – Jean Coutu
• Jil Sander – Heidemarie "Jil" Sander
• The Jim Henson Company – Jim Henson
• Jimmy John's – Jimmy John Liautaud
• JML – John Mills (Limited)
• Jo-Han – John Hanley
• Joe Gibbs Racing – Joe Gibbs
• Joest Racing – Reinhold Joest
• John Cooper Works – John Cooper
• John Deere – John Deere
• John Murray – John Murray I
• John Player & Sons – John Player
• John Smith's Brewery – John Smith
• Johnnie Walker – John Walker
• Johnson & Johnson – Robert Wood Johnson I, James Wood Johnson, and Edward Mead Johnson
• Johnson Publishing – John H. Johnson
• Jones Lang Wootton – last names of its three principal members
• Jordan Grand Prix – Eddie Jordan
• JR Motorsports – Dale Earnhardt Jr. (Earnhardt is frequently referred to in NASCAR circles as "Junior")
• JTG Daugherty Racing – Jodi and Tad Geschickter, and Brad Daugherty
• Judd – John Judd
• Junkers – Hugo Junkers

• Kadokawa Shoten – Haruki Kadokawa
• Kaiser Aluminum, Kaiser Motors, Kaiser Permanente, Kaiser Shipyards, Kaiser Steel – Henry J. Kaiser
• Kaiser-Frazer – Henry J. Kaiser and Joseph W. Frazer
• Kaman Corporation – Charles Kaman
• Kärcher – Alfred Kärcher
• Karstadt – Rudolph Karstadt
• Kaspersky Lab – Eugene Kaspersky
• Kate Spade New York – Kate Spade
• Kawasaki Heavy Industries – Kawasaki Shōzō
• Kellogg Company, WK Kellogg Co – Will Keith Kellogg
• Kelly Racing – John and Margaret Kelly
• The Kennedy/Marshall Company – Kathleen Kennedy and Frank Marshall
• Kenwood Limited – Kenneth Maynard Wood
• Kevin Harvick Incorporated – Kevin Harvick
• Kimberly-Clark – John A. Kimberly and Charles B. Clark
• King Kullen – Michael J. Cullen; he replaced the "C" with a "K" for marketing purposes
• Knight Ridder – John S. Knight (Knight Newspapers, Inc.) and Herman Ridder (Ridder Publications, Inc.)
• Knorr – Carl Heinrich Theodor Knorr
• Koch Industries – Fred C. Koch
• Koch Media – Franz Koch
• Koei – Kō Shibusawa and Eiji Fukuzawa (non-existent people)
• Koenigsegg – Christian von Koenigsegg
• Kogan.com – Ruslan Kogan
• Kohlberg Kravis Roberts – Jerome Kohlberg Jr., Henry Kravis, and George R. Roberts
• Kohl's – Max Kohl
• Kojima Engineering – Matsuhisa Kojima
• Kojima Productions – Hideo Kojima
• Konami – Kagemasa Kouzuki, Yoshinobu Nakama, Tatuso Miyasako (another theory was Hiro Matsuda, and Shokichi Ishihara)
• Konrad Motorsport – Franz Konrad
• Kraft Foods – James L. Kraft
• Kremer Racing – Erwin and Manfred Kremer
• Kroger – Bernard Kroger
• Kruse International – Russell W. Kruse
• Kurtis Kraft – Frank Kurtis
• Kuzma – Eddie Kuzma
• Kwanon – Kannon (Japanese for the Buddhist bodhisattva Guan Yin)^[7]

• L.L.Bean – Leon Leonwood Bean
• Lacoste – Jean René Lacoste (1904–1996)
• Lafarge – Joseph-Auguste Pavin de Lafarge
• Lagardère Group – Jean-Luc Lagardère
• Laidlaw – Robert Laidlaw
• Lamborghini – Ferruccio Lamborghini
• Lancia – Vicenzo Lancia
• Lane Bryant – Lena Bryant (first name misspelled by a bank officer when she opened her company's first bank account)
• Larousse – Pierre Larousse
• Larrousse – Gérard Larrousse
• Lauda Air – Niki Lauda
• Lavazza – Luigi Lavazza
• Laverda – Pietro Laverda
• Lay's – Herman Lay
• Lazard – Alexandre Lazard, Simon Lazard, and Elie Lazard
• LDS – Louis Douglas Serrurier
• Leatherman – Timothy S. Leatherman
• Lee Enterprises – A. W. Lee
• Lee – Harry David Lee
• Leeann Chin – Leeann Chin
• Lehman Brothers – Henry Lehman, Emanuel Lehman, and Meyer Lehman
• J. Lehrenkrauss Corporation
• Leica Camera, Leica Geosystems and Leica Microsystems – Ernst Leitz II (Leitz Camera)
• Leitz – Louis Leitz
• LeMond Racing Cycles – Greg LeMond
• Leslie – Donald Leslie
• Lesney Products – Leslie Smith and Rodney Smith
• Levi Strauss & Co. – Levi Strauss
• Li-Ning – Li Ning
• Liberty – Arthur Lasenby Liberty
• Lidl – named for Ludwig Lidl
• Life – Ernesto Vita (surname is Italian for life)
• Ligier – Guy Ligier
• Lincoln Motor Company – Abraham Lincoln
• Lincoln National Corporation – to convey the integrity of U.S. President Abraham Lincoln
• Linde Group – Carl von Linde
• Lindt – Rodolphe Lindt
• Lipton – Thomas Lipton
• Lisa Frank Incorporated – Lisa Frank
• Livingston International – Gerry Livingston
• Liz Claiborne – Liz Claiborne
• Lloyds Bank – Sampson Lloyd
• Lloyd's of London – Edward Lloyd
• Loblaws – Theodore Loblaw
• Lockheed Corporation (to Lockheed Martin) – Allan Haines Loughead and Malcolm Loughead
• Loews Theatres and Loews Corporation – Marcus Loew
• Longman – Thomas Longman
• Lonsdale – Hugh Cecil Lowther, 5th Earl of Lonsdale
• Lorillard Tobacco Company – Pierre Abraham Lorillard
• Lotte – The Sorrows of Young Werther character Charlotte
• Loud Brothers – Thomas Loud Jr., Philologus Loud, John Loud, and Joseph Loud
• Louis B. Mayer Pictures (to Metro-Goldwyn-Mayer) – Louis B. Mayer
• Louis Vuitton – Louis Vuitton
• Lowe Alpine and its offshoot Lowepro – Greg, Jeff, and Mike Lowe (founders)
• Lucasfilm – George Lucas
• LVMH – see separate entries of Louis Vuitton, Moët et Chandon, and Hennessy

• M. D. Moody & Sons, Inc. – Maxey Dell Moody, Sr.
• Macmillan – Daniel and Alexander Macmillan
• Macy's – Rowland Hussey Macy
• Maggi – Julius Maggi
• Mahindra Group – K.C. Mahindra and J.C. Mahindra, India
• Maki – Mimur A Kenji
• Makita – Mosaburo Makita
• Malaguti – Antonio Malaguti
• Mamiya – Seichi Mamiya
• Manfrotto Group – Lino Manfrotto
• Manion's – Ron Manion
• Mansory – Kourosh Mansory
• March Engineering – initials of Max Mosley, Alan Rees, Graham Coaker, and Robin Herd
• Marchese – Carl Marchese
• Marconi Company – Guglielmo Marconi
• Marcus Marshall Motorsport – Marcus Marshall
• Mark Levinson – Mark Levinson
• Marks & Spencer – Michael Marks and Thomas Spencer
• Marriott Corporation (later split into Host Marriott and Marriott International) – J. Willard Marriott
• Mars, Incorporated – Frank C. Mars
• Marsh & McLennan Companies – Henry W. Marsh and Donald R. McLennan
• Marshall Amplification – Jim Marshall
• Martha Stewart Living Omnimedia – Martha Stewart
• Martin-Baker – James Martin and Valentine Baker
• Martini – Tico Martini
• Martini & Rossi – Alessandro Martini and Luigi Rossi
• Mary Kay, Inc. – Mary Kay Ash
• Marzotto – Luigi Marzotto
• Matsushita Electric Industrial – Konosuke Matsushita
• Matrox – Branko Matić and Lorne Trottier (and excellence)
• Mattel – Harold Matt Matson and Elliot Handler
• Mauser – Wilhelm and Paul Mauser
• Max Factor – Max Factor, Sr (born Maksymilian Faktorowicz)
• Maybach – Wilhelm and Karl Maybach
• Maytag – F. L. Maytag
• Mazda – Jujiro Matsuda, also possibly inspired by the Zoroastrian god Ahura Mazda
• MB – Milton Bradley
• McAfee – John McAfee
• McCaw Cellular – Craig McCaw
• McDonald's – Richard and Maurice McDonald
• McDonnell Aircraft (to McDonnell Douglas) – James Smith McDonnell
• Todd McFarlane Productions, McFarlane Toys – Todd McFarlane
• McGraw-Hill – John A. Hill and James H. McGraw
• McKesson Corporation – John McKesson
• McLaren – Bruce McLaren
• McVitie's – Robert McVitie
• Meijer – Hendrik Meijer
• Melitta – Melitta Bentz
• Mellon Financial Corporation – Thomas Mellon
• Menards – John Menard Jr.
• Mercedes – named by Emil Jellinek for his daughter Mercédès Jellinek
• Mercedes-Benz – Karl Benz
• Merck – Friedrich Jacob Merck
• Meredith Corporation – Edwin T. Meredith
• Merriam-Webster – George and Charles Merriam, and Noah Webster
• Merrill Lynch – Charles E. Merrill and Edmund C. Lynch
• Merzario – Arturo Merzario
• Messerschmitt – Willy Messerschmitt
• Methuen – Algernon Methuen
• MG Cars – William Morris, 1st Viscount Nuffield (Morris Garages)
• MGM or Metro-Goldwyn-Mayer – Samuel Goldfish, Edgar and Archibald Selwyn, and Louis B. Mayer
• Michael Kors Holdings – Michael Kors
• Michael Waltrip Racing – Michael Waltrip
• Michelin – André Michelin and Édouard Michelin
• Miele – Carl Miele
• Mikoyan – Artem Mikoyan
• Millarworld – Mark Millar
• MillenWorks – Rod Millen
• Minardi – Giancarlo Minardi
• Miramax Films – Miriam and Max Weinstein (parents of founders)
• Mitel – Michael Cowpland and Terry Matthews (Mike and Terry's Lawnmowers)
• Mitsuoka – Akio Mitsuoka
• Moët et Chandon – Claude Moët and Pierre-Gabriel Chandon de Briailles
• Molson – John Molson
• Momo – Giampiero Moretti (Moretti Monza)
• Mondadori – Arnoldo Mondadori
• Montague Bikes – David Montague
• Monteverdi – Peter Monteverdi
• Moog Music – Dr. Robert Moog
• Morbidelli – Giancarlo Morbidelli
• Morgan Motor Company – H.F.S. Morgan
• Morgan Stanley – Henry S. Morgan and Harold Stanley
• Morris Motors – William Morris, 1st Viscount Nuffield
• Morton Salt – Joy Morton
• Mosler Automotive – Warren Mosler
• Moto Guzzi – Carlo Guzzi
• Moto Morini – Alfonso Morini
• Mr. Gatti's Pizza – Pat Eure, née Gatti, wife of company founder Jim Eure
• MTM Enterprises – Mary Tyler Moore
• Murphy's Brewery – James J. Murphy
• MV Agusta – Vincenzo and Domenico Agusta
• Myer – Sidney Myer

• Nakajima Racing – Satoru Nakajima
• Nakamichi – Etsuro Nakamichi
• Namco – Masaya Nakamura (Nakamura Manufacturing Company)
• Nardi – Enrico Nardi
• Nash Motors – Charles W. Nash
• Neckermann – Josef Neckermann
• Neiman Marcus – Herbert Marcus, Sr., Carrie Marcus Neiman, and A. L. Neiman
• Nero AG – Nero
• Nestlé – Henri Nestlé
• Newman/Haas/Lanigan Racing – Paul Newman, Carl Haas, and Mike Lanigan
• Newman's Own – Paul Newman
• Nick Bollettieri Tennis Academy – Nick Bollettieri
• Nielsen – Arthur Nielsen
• Niki – Niki Lauda
• Nina Ricci – Nina Ricci
• Nobel Enterprises – Alfred Nobel
• Norbert Dentressangle – Norbert Dentressangle
• Nordstrom – John W. Nordstrom
• Northrop – Jack Northrop

• Offenhauser – Fred Offenhauser
• Office Kitano – Takeshi Kitano
• Öhlins – Kenth Öhlins
• Oldsmobile – Ransom E. Olds
• Olin Corporation – Franklin W. Olin
• Olivetti – Camillo Olivetti
• Opel – Adam Opel
• Orton Ceramic Foundation – Edward Orton Jr.
• Oscar Mayer – Oscar F. Mayer
• Osella – Enzo Osella
• Otis Elevator Company – Elisha Otis
• Otto GmbH – Michael Otto

• Pagani – Horacio Pagani
• Pamida – Patrick, Michael, and David Witherspoon, sons of company co-founder Jim Witherspoon
• Panhard – René Panhard
• Panoz – Don Panoz
• Papa John's Pizza – "Papa" John Schnatter
• Patek Philippe & Co. – Antoni Patek and Adrien Philippe
• Pathé – Charles and Émile Pathé
• Paul Cruickshank Racing – Paul Cruickshank
• Paul Frank Industries – Paul Frank
• Paul K. Guillow, Inc. – Paul K. Guillow
• Paul Morris Motorsport – Paul Morris
• Peavey Electronics – Hartley Peavey
• Peek Freans – James Peek and George Hender Frean
• Penske Corporation – Roger Penske
• Penske Media Corporation – Jay Penske, the son of Roger Penske
• PerkinElmer – Richard Scott Perkin and Charles Elmer
• Perot Systems – H. Ross Perot Jr.
• Perrier – Louis Perrier (physician) [fr]
• Perry Ellis International – Perry Ellis
• Petty Enterprises – Lee Petty
• Peugeot – Armand Peugeot
• Pfizer – Charles Pfizer
• Philip Morris International and Philip Morris USA – Philip Morris
• Philips – Gerard Philips
• Piaggio – Rinaldo Piaggio
• Pinarello – Giovanni Pinarello
• Pininfarina – Sergio Pininfarina
• Pirelli – Giovanni Battista Pirelli
• Pontiac – Chief Pontiac
• Porsche – Ferdinand Porsche
• Porsche Design – Ferdinand Alexander Porsche
• Powell Peralta – George Powell and Stacy Peralta
• Prada – Mario Prada
• Pramac d'Antin – Luis d'Antin
• Pratt & Whitney – Francis A. Pratt, Amos Whitney
• Pressman Toy Corporation – Jack Pressman
• PricewaterhouseCoopers – Samuel Lowell Price, Edwin Waterhouse, William Cooper
• Primanti Brothers – Joe Primanti, Dick Primanti, Stanley Primanti
• Procter & Gamble – William Procter and James Gamble
• Promotions Varoussac, original name of the wrestling promotion later known as Lutte Internationale – Frank Valois, André Roussimoff (aka André the Giant), Louis Accocella (aka Gino Brito)
• Prost Grand Prix – Alain Prost
• PRS Guitars – Paul Reed Smith
• Pye – William George Pye

• Quaife – Rod Quaife
• Qvale – Bruce Qvale

• R. J. Reynolds Tobacco Company (RJR) – R. J. Reynolds
• Railton – Reid Railton
• Rainer-Wurz.com – Markus Rainer and Alexander Wurz
• Ralt – Ron and Austin Lewis Tauranac
• RAM Racing – Mike Ralph and John Macdonald
• Rawlings – George and Alfred Rawlings
• RE Amemiya – Asami Amemiya
• Rebaque – Héctor Rebaque
• Reckitt Benckiser - Isaac Reckitt and Johann Benckiser
• Reed - Alec Reed
• Reiter Engineering – Hans Reiter
• Renault – Louis Renault
• Rensi-Hamilton Racing – Ed and Sam Rensi, and Bobby Hamilton Jr.
• REO Motor Car Company – Ransom E. Olds
• Reuters – Paul Reuter
• Reynard Motorsport – Adrian Reynard
• Richard Childress Racing – Richard Childress
• Richard Petty Motorsports – Richard Petty
• Rickenbacker – Adolph Rickenbacher
• Riddell – John Tate Riddell
• Rieger Tuning – Toni Rieger
• Riese und Müller – Markus Riese and Heiko Müller
• Riley & Scott – Bob Riley and Mark Scott
• Riley Motor – William Riley Jr.
• Riley Technologies – Bob and Bill Riley
• Rimac Automobili – Mate Rimac
• Rimmel – Eugène Rimmel
• Rinspeed – Frank Rinderknecht
• Ripspeed – Keith Ripp
• Rizzoli-Corriere della Sera – Angelo Rizzoli
• RM Auctions – Rob Myers
• R. M. Williams – Reginald Murray Williams
• RML Group – Ray Mallock
• Robeez – Sandra Wilson's son Robert
• Robert Bosch GmbH – Robert Bosch
• Robert Yates Racing – see Yates Racing
• Roberts Radio – Harry Roberts
• Roche - Adèle La Roche, first wife of Fritz Hoffmann-La Roche
• Rockefeller Group – John D. Rockefeller Jr.
• Rockwell International, North American Rockwell, Rockwell Semiconductor – Willard Rockwell
• Rod Millen Motorsports – see MillenWorks
• Rod Nash Racing – Rod Nash
• Rogers Communications – Edward S. "Ted" Rogers
• Rogers Locomotive and Machine Works – Thomas Rogers
• Rogers Vacuum Tube Company – Edward S. Rogers, Sr.
• Rolls-Royce plc, Rolls-Royce Motor Cars – Charles Rolls and Henry Royce
• Rondel Racing – Ron Dennis and Neil Trundle
• Rootes Group (now part of Stellantis) – William Rootes
• Rossetti Architects – Gino Rossetti and Matthew L. Rossetti
• Rothmans – Louis Rothman
• Roush Performance, Roush Fenway Racing – Jack Roush
• Rowntree's – Henry Isaac Rowntree
• RPG Group – Rama Prasad Goenka, India
• RSA Security – Ronald Rivest, Adi Shamir, and Len Adleman
• Rudge-Whitworth – Daniel Rudge
• Ruf Automobile – Alois Ruf
• Russell & Bromley – Albion Russell and George Frederick Bromley
• Ryanair – Tony Ryan

• S.C. Johnson & Son – Samuel Curtis Johnson, Sr.
• Sainsbury's – John James Sainsbury
• Saks Fifth Avenue – Andrew Saks
• Saleen – Steve Saleen
• Sam's Club – Sam Walton
• Samsonite – Samson
• Samuel Smith Brewery – Samuel Smith
• Santoni – Andrea and Rosa Santoni
• Sauber – Peter Sauber
• Savoia-Marchetti – Umberto Savoia and Alessandro Marchetti
• Sbarro (U.S. pizza restaurant chain) – Gennaro and Carmela Sbarro
• Sbarro (Swiss automaker) – Franco Sbarro
• Schweppes – Johann Jacob Schweppe
• Schlecker – Anton Schlecker
• Schnitzer Motorsport – Josef and Herbert Schnitzer
• SCHWIND eye-tech-solutions – Herbert Schwind
• Schwinn Bicycle Company – Ignaz Schwinn
• Scott – Ed Scott
• Sears – Richard Warren Sears
  • formerly Sears, Roebuck – Sears and Alvah Roebuck
• Seeburg Corporation – Justus Sjöberg (Anglicized name)
• Seecamp – Ludwig Wilhelm "Louis" Seecamp
• Seedorf Racing – Clarence Seedorf
• Selfridges – Harry Gordon Selfridge
• Sennheiser electronic – Fritz Sennheiser
• Shakespeare Fishing Tackle – William Shakespeare Jr.
• Shanghai Tang – David Tang
• Shaw Brothers Studio, Shaw Organisation – Run Run Shaw and Runme Shaw
• Sheetz – Bob Sheetz
• Sherwin-Williams Company – Henry Sherwin and Edward Williams
• Shimano – Shozaburo Shimano
• Shugart Associates – Alan Shugart
• Shure Incorporated – Sidney Shure
• Siemens AG – Werner von Siemens
• Sikorsky Aircraft – Igor Sikorsky
• Simpson Performance Products – Bill Simpson
• Sinclair Broadcast Group – Julian Sinclair Smith
• Sinclair Radionics, Sinclair Research, Sinclair Vehicles – Clive Sinclair
• Singer Corporation – Isaac Merritt Singer
• Singer Motors – George Singer
• Skip Barber Racing School – Skip Barber
• Škoda – Emil Škoda
• Smirnoff – Piotr Arsenieyevich Smirnov
• Smith and Nephew – Thomas James Smith and nephew Horatio Nelson Smith
• Smith & Wesson – Horace Smith and Daniel B. Wesson
• Soennecken – Friedrich Soennecken
• Sopwith Aviation Company – Thomas Sopwith
• Sotheby's – John Sotheby
• Spice Engineering – Gordon Spice
• SROGs – Henry Varnum Poor
• Staedtler – Friedrich Staedtler [de]
• Stanley Black & Decker – Frederick Trent Stanley, S. Duncan Black, and Alonzo G. Decker
  • formerly Stanley Works, named after the aforementioned Stanley
• Steinway & Sons – Henry E. Steinway
• Stern – Sam Stern
• Stewart Grand Prix – Jackie and Paul Stewart
• Stewart Haas Racing – Tony Stewart and Gene Haas (via Haas Automation)
• Stewart-Warner – John K. Stewart and Arthur P. Warner
• Stihl – Andreas Stihl
• Stillen – Steve Millen
• Stobart Group – Eddie Stobart
• Stockmann – Georg Franz Stockmann
• Stone Brothers Racing – Ross and Jim Stone
• Strömberg – Gottfrid Strömberg
• Sturm, Ruger – Alexander McCormick Sturm and William B. Ruger
• Stutz Motor Company – Harry C. Stutz
• Suchard – Philippe Suchard
• Sukhoi – Pavel Sukhoi
• Sullivan Bluth Studios – Don Bluth and Morris Sullivan
• Sumitomo Group – Sumitomo Masatomo
• Super Aguri F1 – Aguri Suzuki
• Surtees – John Surtees
• Suzuki – Michio Suzuki
• Suzy Levian New York – Souzana Levian
• Swarovski – Daniel Swarovski

• Taco Bell – Glen Bell
• Taft Broadcasting – Charles Phelps Taft
• TAG Heuer – Eduardo Heuer
• Tamiya – Yoshio Tamiya
• Tandy Corporation – Dave L. Tandy
• Tanfoglio – Tanfoglio Giuseppe
• Taser International – Thomas A. Swift's Electric Rifle
• Tata Group – Jamsetji Tata, India
• Tate & Lyle – Henry Tate and Abram Lyle
• Taylor Wimpey – Frank Taylor and George Wimpey
• Taylor Woodrow – Frank Taylor and Jack Woodrow
• Teacher's Highland Cream – William Teacher
• Team Goh – Kazimuchi Goh
• Team LCR – Lucio Cecchinello
• Ten Kate Racing – Gerrit ten Kate, named after his nephew Ronald's motorcycle dealership Ten Kate Motorcycles
• Terrytoons – Paul Terry
• Tesco – T.E. Stockwell and Jack Cohen
• Tesla Motors – Nikola Tesla
• Testor Corporation – Nils Testor
• Tetley's Brewery (Joshua Tetley & Sons) – Joshua Tetley
• Theakston Brewery – Robert Theakston
• Thomas B. Jeffery Company – Thomas B. Jeffery
• Thomas Cook Group, Thomas Cook Airlines, Thomas Cook & Son – Thomas Cook
• The Thomson Corporation – Roy Thomson, 1st Baron Thomson of Fleet
• Various named after Elihu Thomson:
  • Alstom
  • Thomson-CSF (now Thales Group)
  • Thomson-Houston Electric Company (now General Electric)
  • Thomson SA (now Technicolor SA)
• Thorn Electrical Industries – Jules Thorn
• Thorntons (British chocolatier) – Joseph William Thornton
• Thorntons (U.S. convenience store chain) – James H. Thornton
• Thrupp & Maberly (former coachbuilders) – George Thrupp and George Maberly
• THX – Tomlinson Holman
• ThyssenKrupp – Thyssen family and the Krupp family
• Tiffany & Co. – Charles Lewis Tiffany
• Tiffen – Sol Tiffen
• Tim Hortons – Tim Horton
• Timken Company – Henry Timken
• Tinsley & Hull – Fleming Davies Tinsley and Daniel B. Hull
• Toblerone – Theodor Tobler
• Tokuma Shoten – Yasuyoshi Tokuma
• Toleman – Ted Toleman
• Tom Walkinshaw Racing – Tom Walkinshaw
• Tommy Hilfiger – Tommy Hilfiger
• Tommy Kaira – Yoshikazu Tomita and Kikuo Kaira
• TOM'S – Nobuhide Tachi and Kiyoshi Oiwa (Tachi Oiwa Motor Sport)
• Tom's of Maine – Tom and Kate Chappell
• Toni & Guy – Giuseppe "Toni" and Gaetano "Guy" Mascolo
• Tony Roma's – Tony Roma
• Towers Perrin – John Towers and Charles Perrin
• Toyota Industries – Sakichi Toyoda
• Toyota Motor – Kiichiro Toyoda
• Trane – James and Reuben Trane
• Triple F Racing – Paul, Todd, and Dean Fiore
• Trump Organization – Fred Trump
• Trump Shuttle, Trump Entertainment Resorts, Trump Taj Mahal Casino Resort – Donald Trump
• Tupolev – Andrei Tupolev
• Tupperware Brands – Earl Tupper
• Turner Broadcasting System, TNT (formerly Turner Network Television), Turner Classic Movies, Turner South (defunct pay-TV network), TBS (formerly Turner Broadcasting System) – Ted Turner
• TVR – Trevor Wilkinson
• TVS Motors, TVS Electronics – T.V. Sundaram Iyengar, India
• Twinings – Thomas Twining
• Tyrrell Racing – Ken Tyrrell

• Ukrop's – Joseph Ukrop
• Umbro – Harold and Wallace Humphreys (Humphrey Brothers)
• Unilever – Lever Brothers

• Valentino – Valentino Garavani
• Vanwall – Tony Vandervell (and Thinwall bearings)
• VDL Bova – J.D. Bova
• Veilside – Hiranao Yokomaku; "yoko" translates as "side" and "maku" as "veil"
• Vel’s Parnelli Jones Racing – Velco "Vel" Miletich and Parnelli Jones
• Versace – Gianni Versace
• Verville Aircraft Company – Alfred V. Verville
• Vibram – Vitale Bramani
• Vicks – John Vick
• Vroom & Dreesmann – Willem Vroom and Anton Dreesmann

• W.B. Mason – William Betts Mason
• W H Smith – William Henry Smith
• W. R. Grace and Company – William Russell Grace
• W. W. Norton – William Warder Norton
• Waitrose – Wallace Waite and Arthur Rose
• Walmart – Sam Walton
• Walgreens – Charles Rudolph Walgreen
• Walkinshaw Andretti United – Tom Walkinshaw, Michael Andretti
• Wall's (ice cream) and Wall's (meat) – Richard Wall
• The Walt Disney Company – Walt Disney
• Walther – Carl Walther
• Walter Wolf Racing – Walter Wolf
• Wang Laboratories – An Wang
• Warburtons – Ellen and Thomas Warburton
• Warner Bros. – Jack L. Warner, Sam Warner, Harry Warner, and Albert Warner
• Warmba - Trust Warawara and Zukhanye Gomba
• Wegmans – John and Walter Wegman
• Wells Fargo – Henry Wells and William Fargo
• Wendy's – Dave Thomas' daughter Melinda "Wendy" Thomas
• Weslake – Harry Weslake
• Westinghouse Electric – George Westinghouse
• Whitbread – Samuel Whitbread
• Whyte & Mackay – James Whyte and Charles Mackay
• Wiesmann – Martin and Friedhelm Wiesmann
• Wilkinson Sword – James Wilkinson
• Wilko (formerly Wilkinson) – James Kemsey Wilkinson
• Will Vinton Productions – Will Vinton
• Willi Betz – Willi Betz
• William Hill plc – William Hill
• Williams Grand Prix Engineering – Frank Williams
• Williams Manufacturing Company, (to) Williams Electronics – see WMS Industries
• Williams Sonoma – Chuck Williams (author)
• Wilson Combat – Bill Wilson
• Winchester, Winchester Repeating Arms – Oliver Winchester
• Winning Appliances – John Winning and the Winning family
• WMS Industries, WMS Gaming – Harry E. Williams
• Wolfram Research - Stephen Wolfram
• Wood Brothers Racing – Glen, Leonard, Delano, Clay, and Ray Lee Wood
• Woolworths – F. W. Woolworth
• Worthington Brewery – William Worthington
• Wright Company, Wright Aeronautical (to Wright-Martin) – Orville and Wilbur Wright
• Wrigley Company – William Wrigley Jr.
• Würth – Adolf Würth

• Yakovlev – Alexander Sergeyevich Yakovlev
• Yamaha Corporation – Torakusu Yamaha
• Yates Racing – Robert Yates
• Yokomo – Tomoaki Yokobori (spun off from a model shop named Yokobori Model Shop)
• Young's (now Wells & Young's Brewery) – Charles Young
• Yuke's – Yukinori Taniguchi
• Yves Saint Laurent – Yves Saint Laurent

• Zagato – Ugo Zagato
• Zakspeed – Erich Zakowski
• Zend Technologies – Zeev Suraski & Andi Gutmans
• Zeiss – Carl Zeiss
• Ziff Davis – William Bernard Ziff Sr. and Bernard George Davis
• Zust – Roberto Züst