It was founded in September 2000 as an umbrella team for the football departments of five local teams; Ås IL, Oppegård IL, Langhus IL, Ski IL and Nordby IL.

Follo's had a good Norwegian Cup run in 2006, when they made it all the way to the quarter-finals, eventually losing at home 0-1 to the cup finalists Sandefjord. But on the way to the quarters they beat defending holders Molde.

Four years later, in 2010, they made it to the Norwegian Cup final, beating Tippeligaen club Lillestrøm 4-2 in the third round, and then later Rosenborg 3-2 in the semi-finals. Rosenborg were at the time unbeaten and on top of the Tippeligaen, while Follo were at the bottom of the Adeccoligaen. NRK's match commentator Hallvar Thoresen dubbed Follo's victory against Rosenborg the greatest Norwegian cup shock of all time.^[1] In the first cup final in the club's history, Follo lost 2-0 against Strømsgodset.

Thus, despite attaining their best league and cup finish ever, Follo were still relegated to the third tier of Norwegian football. The team managed to stay clear of the relegation zone by the margin of a single point, but were still relegated on account of a clerical error in which they did not finish their application for a 2011 license in time for the 15 September deadline.^[2]

Before the 2011 Second Division, Follo was considered one of the favourites to earn promotion back to Adeccoligaen,^[3] but when the season was finished Follo was number ten, only four points clear of another relegation.

On July 13, 2012, four players (three of them from Follo) were arrested by police due to match fixing allegations in games involving Follo and Asker Fotball. ^[4] Follo's 4-3 loss after being 3-0 up by Østsiden IL was deemed suspicious because of the odd score line and high bettings placed on this game.^[5] The 2012 season saw Follo earn promotion, but the club was relegated after only one season in the First Division.

Season		Pos.	Pl.	W	D	L	GS	GA	P	Cup	Notes
2006	1. divisjon	↓ 15	30	6	7	17	46	76	25	Quarterfinal	Relegated to the 2. divisjon
2007	2. divisjon	5	26	14	4	8	48	30	49	Second round
2008	2. divisjon	6	26	10	7	9	44	35	37	Second round
2009	2. divisjon	↑ 1	26	19	3	4	59	25	60	Second round	Promoted to the 1. divisjon
2010	1. divisjon	↓ 12	28	8	8	12	35	43	32	Final	Relegated to the 2. divisjon because license was revoked
2011	2. divisjon	10	24	7	5	12	47	51	26	First round
2012	2. divisjon	↑ 1	26	18	2	6	58	28	56	First round	Promoted to the 1. divisjon
2013	1. divisjon	↓ 15	30	9	2	19	40	57	27	Third round	Relegated to the 2. divisjon
2014	2. divisjon	↑1	26	21	3	2	97	16	66	Third round	Promoted to the 1. divisjon
2015	1. divisjon	↓ 13	30	8	9	13	42	43	33	Second round	Relegated to the 2. divisjon
2016	2. divisjon	5	26	12	5	9	48	39	41	First round
2017	2. divisjon	↓ 14	26	6	4	16	28	58	22	First round	Relegated to the 3. divisjon
2018	3. divisjon	6	26	9	8	9	39	47	35	First round
2019	3. divisjon	3	26	16	3	7	44	27	51	First round
2020	Season cancelled
2021	3. divisjon	10	13	3	6	4	18	14	15	First round
2022	3. divisjon	2	26	18	3	4	63	31	58	First round

• Norwegian Cup:
  • Runners-up (1): 2010

• Official website
• Followers Supporters club (archived 9 August 2018)
• European Football Club Ranking (archived 23 September 2010)