| Business | Phone |
| Aardvark's Quality K-9 Concord 94520 | (925) 689-1942 |
| Contra Costa County Guide Dog Concord 94520 | (925) 689-4989 |
| Happy Tails To You Concord 94520 | (925) 682-3647 |
| K-9 Obedience & Protection Concord 94520 | (925) 686-4810 |
| Mt Diablo Dog Training Club 1027 Detroit Ave, Concord 94518 | (925) 933-8774 |