| Business | Phone |
| American Consulting Engineers 300 Orchard City Dr # 160, Campbell 95008 | (408) 370-4640 |
| Bartlet & Assoc Consulting Campbell 95008 | (408) 370-2220 |
| Climax Technology Ventures 963 Smith Ave, Campbell 95008 | (408) 374-7044 |
| Erin Engineering & Research 2105 S Bascom Ave # 350, Campbell 95008 | (408) 559-4514 |
| Fusion Design 591 W Hamilton Ave, Campbell 95008 | (408) 378-9980 |
| Greene Engineers 221 E Hacienda Ave, Campbell 95008 | (408) 374-8550 |
| Hornberger Engineering 1999 S Bascom Ave # 1010, Campbell 95008 | (408) 377-5824 |
| Ipk Engineering Svc 1290 Burrows Rd, Campbell 95008 | (408) 379-8433 |
| Lamoreaux Mc Lendon & Assoc 4730 W Hacienda Ave, Campbell 95008 | (408) 370-1274 |
| Multivision 841 S Mcglincy Ln, Campbell 95008 | (408) 971-0409 |
| Techsol 430 Salmar Ave, Campbell 95008 | (408) 379-6833 |
| Transmetrics 2155 S Bascom Ave, Campbell 95008 | (408) 371-6800 |
| Universal Consulting Engineers 100 W Rincon Ave, Campbell 95008 | (408) 871-6940 |
| Xebec Engineering Svc 115 Del Prado Dr, Campbell 95008 | (408) 374-2287 |