| Business | Phone |
| Abbott's Labor Link 938 N Mountain Ave, Ontario 91762 | (909) 986-7507 |
| Barrett Business Svc Inc 4120 Jurupa St # 220, Ontario 91761 | (909) 605-6862 |
| Career Advantage Personnel Svc 1215 E Airport Dr # 125, Ontario 91761 | (909) 466-9232 |
| Direct Personnel 311 N Euclid Ave, Ontario 91762 | (909) 986-5466 |
| Diverse Staffing Solutions 402 S Milliken Ave # A, Ontario 91761 | (909) 937-1949 |
| H R Solutions 3535 Inland Empire Blvd # 32, Ontario 91764 | (909) 605-1919 |
| Helpmates 1400 E Holt Blvd, Ontario 91761 | (909) 467-2589 |
| Hr3 Staffing 302 S Milliken Ave # D, Ontario 91761 | (909) 605-5656 |
| Impact Solutions 1609 S Grove Ave # 102, Ontario 91761 | (909) 673-1030 |
| Kelly Scientific Resources 3602 Inland Empire Blvd, Ontario 91764 | (909) 989-1983 |
| Kimco Technology Group 601 S Milliken Ave # A, Ontario 91761 | (909) 390-7733 |
| Mjo Staffing 1910 S Archibald Ave # P, Ontario 91761 | (909) 947-7844 |
| Next Staffing 405 N Vineyard Ave, Ontario 91764 | (909) 974-0333 |
| Manpower Staffing Svc 2151 E Convention Ctr Way #210, Ontario 91764 | (909) 937-9801 |
| Officeteam 3633 Inland Empire Blvd # 955, Ontario 91764 | (909) 945-2282 |
| Optimum Staffing Inc 1155 S Milliken Ave, Ontario 91761 | (909) 937-3312 |
| Optimus Group 402 S Milliken Ave # E1, Ontario 91761 | (909) 937-3644 |
| Personnel Plus Inc 844 S Mountain Ave, Ontario 91762 | (909) 460-1881 |
| Priority Personnel Svc 350 S Milliken Ave # M, Ontario 91761 | (909) 937-6888 |
| Remedy Intelligent Staffing 3401 Centre Lake Dr # 350, Ontario 91761 | (909) 937-6060 |
| Select Personnel Svc 2171 S Grove Ave # G, Ontario 91761 | (909) 930-0555 |
| Solutions Staffing 302 S Milliken Ave, Ontario 91761 | (909) 605-7711 |
| Spherion 3602 Inland Empire Blvd # A130, Ontario 91764 | (909) 941-1600 |
| Staffchex 2248 S Mountain Ave, Ontario 91762 | (909) 391-9218 |
| Staffmark 2409 S Vineyard Ave # A, Ontario 91761 | (909) 947-4990 |
| Staffmark 3602 Inland Empire Blvd # B120, Ontario 91764 | (909) 484-0264 |
| Stratus Services Group 1600 S Milliken Ave, Ontario 91761 | (909) 605-8969 |
| Stratus Services Group 865 S Milliken Ave, Ontario 91761 | (909) 484-4226 |
| Team One 1505 S Haven Ave, Ontario 91761 | (909) 390-2405 |
| Team-One Staffing 1777 S Vintage Ave, Ontario 91761 | (909) 974-0209 |
| Transglobal Solutions Llc 4045 E Guasti Rd # 216, Ontario 91761 | (909) 937-0070 |
| Tsi 4345 E Lowell St, Ontario 91761 | (909) 390-3630 |
| Ultimate Staffing 4295 Jurupa St, Ontario 91761 | (909) 390-8290 |
| Usa Personnel 1035 S Milliken Ave # A, Ontario 91761 | (909) 605-7488 |
| Velocity Staffing Corp 2990 Inland Empire Blvd, Ontario 91764 | (909) 466-5688 |
| Volt Services Group 1990 S Cucamonga Ave, Ontario 91761 | (909) 930-1490 |
| Warehouse Ready 151 S Wineville Ave # G, Ontario 91761 | (909) 390-9353 |
| York Employment Svc 990 Ontario Mills Dr # C, Ontario 91764 | (909) 581-0181 |
| Labor Link 938 N Mountain Ave, Ontario 91762 | (626) 369-2855 |
| Optimus Group 302 S Milliken Ave # D, Ontario 91761 | (909) 937-3644 |