| Business | Phone |
| American Baseline Co 2836 Rainview Dr, San Jose 95133 | (408) 394-9281 |
| Cross Land Surveying 2210 Mount Pleasant Rd, San Jose 95148 | (408) 274-7994 |
| Fanelli Consulting San Jose 95120 | (408) 997-9346 |
| Silicon Valley Land Surveying 1093 N 5th St, San Jose 95112 | (408) 971-8572 |
| Ray Bold Surveying Co 255 W Julian St # 200, San Jose 95110 | (408) 295-3361 |
| Valderrain Bay Area Land Dev 82 N Capitol Ave, San Jose 95127 | (408) 272-7529 |
| American Baseline Co 2836 Rainview Dr, San Jose 95133 | (408) 436-8672 |