| Business | Phone |
| Cal-Land Co 5115 Clayton Rd # A, Concord 94521 | (925) 689-7474 |
| Fremont Properties 2300 Clayton Rd # 100, Concord 94520 | (415) 284-8600 |
| Hofmann Co 1380 Galaxy Way, Concord 94520 | (925) 682-4830 |
| Reynolds & Brown 1200 Concord Ave # 200, Concord 94520 | (925) 674-8400 |
| Silverwing Developement 1390 Willow Pass Rd # 410, Concord 94520 | (925) 680-1620 |
| Denova Homes 1899 Clayton Rd, Concord 94520 | (925) 685-0652 |
| Linux Ata Development 4494 Stone Canyon Ct, Concord 94521 | (510) 351-7390 |
| New Britton Land 1876 Denkinger Rd, Concord 94521 | (925) 691-7077 |
| Paramount Homes 2151 Salvio St, Concord 94520 | (925) 682-9862 |
| Reynolds & Barnes 1200 Concord Ave, Concord 94520 | (925) 240-8400 |
| Roseto Enterprises 1511 Rishell Dr, Concord 94521 | (925) 825-6565 |
| Shamrock Development Co 1333 Willow Pass Rd # 211, Concord 94520 | (925) 680-7200 |
| Skepner Development 2325 Clayton Rd, Concord 94520 | (925) 969-1936 |
| Trenery Homes Inc Concord 94520 | (925) 671-2838 |
| Truckee Sierra Resorts Inc 1380 Galaxy Way, Concord 94520 | (925) 602-1924 |