| Business | Phone |
| Budget Rent A Car 161 John Glenn Dr, Concord 94520 | (925) 689-7685 |
| Enterprise Rent-A-Car 1260 Diamond Way, Concord 94520 | (925) 674-1110 |
| National Car Rental 101 John Glenn Dr # 12, Concord 94520 | (925) 674-9111 |
| Thrifty Car Rental 2521 Monument Blvd, Concord 94520 | (925) 825-9710 |
| Avis Rent A Car 1001 Sunvalley Blvd, Concord 94520 | (925) 798-2847 |
| Enterprise Rent-A-Car 1790 Concord Ave, Concord 94520 | (925) 685-3900 |
| Enterprise Rent-A-Car 2291 Via De Mercados # L, Concord 94520 | (925) 685-8888 |
| Enterprise Rent-A-Car 2550 Monument Blvd # N, Concord 94520 | (925) 688-8900 |
| Hertz Rent A Car 145 John Glenn Dr, Concord 94520 | (925) 691-0104 |
| Hertz Rent A Car 1800 Monument Blvd # N, Concord 94520 | (925) 969-0069 |