| Business | Phone |
| Aex Engineering & Co 5397 Ontario Cmn, Fremont 94555 | (510) 745-1888 |
| Dack Development & Engineering 38870 Altura St, Fremont 94536 | (510) 793-1130 |
| Dpk Consultants Inc 586 Woodward Pl, Fremont 94536 | (510) 790-0916 |
| Endtech 42080 Osgood Rd # 4, Fremont 94539 | (510) 656-8425 |
| Esa Disgin 4127 Bay St # 9, Fremont 94538 | (510) 494-1038 |
| F Z Consultants 46923 Warm Springs Blvd # 102, Fremont 94539 | (510) 656-5911 |
| Ireland Engineering 43551 Mission Blvd # 110, Fremont 94539 | (510) 438-9632 |
| Landtech Consultants 3845 Beacon Ave # D, Fremont 94538 | (510) 505-9501 |
| Seru Assoc 250 Pawnee Pl, Fremont 94539 | (510) 651-4011 |