| Business | Phone |
| Advance Title Research 20212 Redwood Rd # 203, Castro Valley 94546 | (510) 538-0610 |
| Alliance Title Co 3327 Castro Valley Blvd, Castro Valley 94546 | (510) 733-4000 |
| Chicago Title Co 3365 Castro Valley Blvd, Castro Valley 94546 | (510) 538-1600 |
| Commonwealth Land Title Co 20993 Redwood Rd, Castro Valley 94546 | (510) 583-0423 |
| Fidelity National Title 20664 Redwood Rd, Castro Valley 94546 | (510) 538-4224 |
| Financial Title Co 3809 E Castro Valley Blvd, Castro Valley 94552 | (510) 889-1111 |
| North American Title Co 21060 Redwood Rd, Castro Valley 94546 | (510) 537-8300 |
| Old Republic Title Co 20980 Redwood Rd # 160, Castro Valley 94546 | (510) 537-8000 |
| Old Republic Title Co 3160 Castro Valley Blvd, Castro Valley 94546 | (510) 583-1852 |
| Land America Commonwealth 3726 Castro Valley Blvd, Castro Valley 94546 | (510) 583-0423 |