Bedrift F - Lambertseter
- Fysio/Ergoterapitjenesten
- Familiebarnehagene
- Fanny Odden
- Floriss Lambertseter
- Fonus Lambertseter
- Fredrick Bjerke
- Frank Sigurdsøn
- Fam Beauty AS
- Feltarbeiderteamet Utekontakten
- Ftb Saaliti
- Fabulous Media AS
- Film Salabim AS
- Falchenberg Vinkonsult
- F&i Holding AS
- Fosb Invest AS
- Fjellheim-Invest AS
- Frimar Group AS
- Falchenberg Consulting
- Fjeldstad IT
- Fosseli Consulting
- Fjeldberg Consulting AS
- Fjeldberg Eiendom AS
- Future Foundry AS
- Finnsisu Renhold DA
- Fahrenheit Fashions DA
- Fritzvold Fysioterapi
- Floriss Lambertseter
- Foreningen Flyprat
- Fix Regnskap AS
- Fortune Finance AS
- Firveld Invest AS
- Flemming Brestrup
- Fj Michalski
- Ford Music
- Friday Koroma
- Frilseth Coaching
- Færder Entreprenør AS
- Fitbutikken Driscoll
- Frank Brenna
- Folkets Falafel AS
- Fadme Ivanova
- Filosofiforeningen Exphil
- Fagus Moss
- Farah Taxi
- Fylling Music
- Fredriksen Film AS
- Fonvig Group
- Flyttepartneren Holt
- Fredrik Strømsnes
- Filip Hammarlund
- Flying Tiger Copenhagen
- Farstadfilene Hasse Farstad
- Fagernes Senter Holding AS
- Firma K Myhre
- Foreningen Brattbakken Vannverk
- Fog Of War AS
- Foreningen Brattbakken Vannverk
- Flow And Balance AS
- Free Fighters Guild
- Fire Hazard Ungdomsbedrift
- Fau Nylænde Barnehage
- Foreningen for Synshemmede
- Fotograf Alexander Thorsen
- Fau Nylænde Barnehage
- Foreningen for Synshemmede
- Fau Karlsrud Skole
- Fladby Bespoke Consult
- Finn Christensen Fcconsult
- Fysioterapeut Christian Kielland
- Fau Radiohuset Barnehage
- Fau Radiohuset Barnehage
- Fredrik Kristian Jensen
- Fau Steinspranget Barnehage
- Fysio Corzo Ramon
- Fau Lambertseter Skole
- Florin Cristian Ursu
- Fix renhold Oslo AS
- Frisør Christina Cortsen
- Fysioterapeut Ellen Johansen AS
- Fredrik Dale Holding AS
- Fred René Buljo
- Fiona Willie Kouame Koudou
- Full-Send By Dobloug
- Forenfor Trond Egil Nordby
- Forty2 By Vegar Sinding
- Ferie- og Støttetiltak i Nordstrand
- Foreningen for Slaviske Kampsport Tradisjoner Rma Systema