| Business | Phone |
| Akt Peerless Environmental 22725 Orchard Lake Rd, Farmington 48336 | (248) 615-1333 |
| Ranger Research Inc 25716 Ridgewood Dr, Farmington 48336 | (248) 642-7730 |
| Demaximis Inc 28646 Rollcrest Rd, Farmington 48334 | (248) 851-4458 |
| Dragun Corp 30445 Northwestern Hwy 260, Farmington 48334 | (248) 932-0228 |
| Healthair Inc 23941 Research Dr, Farmington 48335 | (248) 426-0165 |
| Microbiological Associates 37428 Hills Tech Dr, Farmington 48331 | (248) 324-4800 |