| Business | Phone |
| Angie's Janitorial Svc 255 School St, Pittsburg 94565 | (925) 427-7823 |
| B & J's Janitorial Svc 7 Seeno Ave, Pittsburg 94565 | (925) 779-4425 |
| California Building Svc 2108 Greenwood Pl, Pittsburg 94565 | (925) 427-5609 |
| California J & M Janitorial 1191 Red Leaf Way, Pittsburg 94565 | (925) 709-2995 |
| Dirt Busters Plus 351 W 6th St, Pittsburg 94565 | (925) 472-2103 |
| High Quality Janitorial Svc 2229 Santa Maria Dr, Pittsburg 94565 | (925) 458-8692 |
| Kmc Janitorial Svc 934 Carpino Ave, Pittsburg 94565 | (925) 427-7845 |
| Magic Touch Cleaning Svc 1004 Mepham Dr, Pittsburg 94565 | (925) 473-9122 |
| Martin's Carpet Clean/Janitor Pittsburg 94565 | (925) 261-9635 |
| Nam Janiking 3030 Railroad Ave, Pittsburg 94565 | (925) 473-2910 |
| Sosa Janitorial Svc 11 Laguna Cir, Pittsburg 94565 | (925) 676-7672 |
| Star Clean & Maintenance Syst 10 Deer Hill Ct, Pittsburg 94565 | (925) 458-2744 |