| Business | Phone |
| A Presotto & Sons Building Po Box 973, San Carlos 94070 | (650) 592-6134 |
| A Ravella Building Maintenance Po Box 742, San Carlos 94070 | (650) 591-5003 |
| Crystal Clean Janitorial Svc 601 Old County Rd, San Carlos 94070 | (650) 595-3001 |
| Grs Maintenance 110 Glenn Way # 5, San Carlos 94070 | (650) 591-5951 |
| J C's Janitorial 1322 Saint Francis Way, San Carlos 94070 | (650) 591-1677 |
| Loma Cleaning Svc 541 Taylor Way # 5, San Carlos 94070 | (650) 593-9774 |
| Nor-Cal Building Maintenance San Carlos 94070 | (650) 598-0660 |
| Qwest Commercial Svc 90 Glenn Way # 1, San Carlos 94070 | (707) 453-1375 |
| R & B Maintenance Svc San Carlos 94070 | (650) 595-2531 |
| Service Master By The Bay 110 Glenn Way # 7, San Carlos 94070 | (650) 593-2437 |
| Superior Building Maintenance 406 El Camino Real, San Carlos 94070 | (650) 802-8660 |
| U & F Maintenance 1160 Industrial Rd # 14, San Carlos 94070 | (650) 595-3471 |
| West Coast Building Svc 990 Industrial Rd # 107, San Carlos 94070 | (650) 593-3000 |
| J & N Housecleaning/Janitorial San Carlos 94070 | (650) 520-4493 |