| FAVA VVS AB | Västerås | 0 tkr |
| FBS - Produkter AB | Kvicksund | 0 tkr |
| FBT Holding AB | Eskilstuna | 0 tkr |
| FC Support & Development AB | Västerås | 0 tkr |
| Febo Holding AB | Västerås | 0 tkr |
| Fe Industri AB | Ramnäs | 0 tkr |
| FEJAB Holding AB | Västerås | 0 tkr |
| Fenix LSS Ginkgo AB | Göteborg | 0 tkr |
| Ferdinandi AB | Västerås | 0 tkr |
| Ferding Invest AB | Västerås | 0 tkr |
| Fereshteh konditori bageri café i Västerås AB | Västerås | 0 tkr |
| Ferrello AB | Strömstad | 0 tkr |
| Ferrens Gruppen Aktiebolag | Västerås | 0 tkr |
| FerroSilva AB | Västerås | 0 tkr |
| FG Holding Västerås AB | Västerås | 0 tkr |
| FHE Holding AB | Västerås | 0 tkr |
| FH Management Consulting AB | Västerås | 0 tkr |
| Fibelle konsult AB | Västerås | 0 tkr |
| Fibretti Group AB | Västerås | 0 tkr |
| Fibulae AB | Västerås | 0 tkr |
| Fildrian AB | Vretstorp | 0 tkr |
| Filip Olandersson Musikproduktion i Västerås AB | Västerås | 0 tkr |
| Filipstads Solparker AB | Västerås | 0 tkr |
| Final Countdown AB | Västerås | 0 tkr |
| Financatekno AB | Kungsör | 0 tkr |
| Finnicka Unlimited AB | Västerås | 0 tkr |
| Finnslätts Terminalen AB | Västerås | 0 tkr |
| Finnsta 2 AB | Västerås | 0 tkr |
| Finväst AB | Västerås | 0 tkr |
| Fiorino Holding AB | Västerås | 0 tkr |
| Firat Restaurang AB | Västerås | 0 tkr |
| First Gate Invest AB | Västerås | 0 tkr |
| Fiskarbacken Fastighets 1 AB | Västerås | 0 tkr |
| FLEE Västerås AB | Västerås | 0 tkr |
| Flintaborg Consulting AB | Kvicksund | 0 tkr |
| Flitbo Holding AB | Västerås | 0 tkr |
| FLJB Invest AB | Västerås | 0 tkr |
| FLK Finans & Ledarskap Konsult AB | Västerås | 0 tkr |
| Floby Holding AB | Västerås | 0 tkr |
| Floby Rescue Holding AB | Västerås | 0 tkr |
| FLORA POETICA AB | Västerås | 0 tkr |
| Florencia Holding AB | Västerås | 0 tkr |
| Florenz AB | Västerås | 0 tkr |
| Florist Margareta Kronman AB | Västerås | 0 tkr |
| FlowHydrate AB | Västerås | 0 tkr |
| Flygexpo Västerås Aktiebolag | Malmö | 0 tkr |
| FMQ Holding AB | Västerås | 0 tkr |
| Foldevi Investment AB | Västerås | 0 tkr |
| FOLGEROE AB | Sala | 0 tkr |
| Folkhälsobyrån samhällsfastigheter AB | Västerås | 0 tkr |