| Business | Phone |
| Casey's Travel 737 2nd St, Brentwood 94513 | (925) 634-2425 |
| Cruise One 493 Lakeview Dr, Brentwood 94513 | (925) 735-5115 |
| Discovery Bay Travel 6100 Balfour Rd, Brentwood 94513 | (925) 634-7353 |
| Manor Travel 2540 Whittaker Ct, Brentwood 94513 | (925) 513-7952 |
| Mundi Travel 8065 Brentwood Blvd # 3b, Brentwood 94513 | (925) 513-0850 |