| 1 Teamwork Fire Protection LLC | 1139396 | Active | 06/30/2027 |
| 123 Construction | 708020 | Active | 06/30/2027 |
| 123 Construction LLC | 1105567 | Active | 06/30/2027 |
| 3-D Construction | 507869 | Active | 10/31/2026 |
| 3-Valley's Construction Inc | 489300 | Active | 04/30/2028 |
| 360 Building Group Consulting Inc | 1090944 | Active | 05/31/2028 |
| 4 - Ace Construction | 798144 | Active | 08/31/2027 |
| 4 S Air Inc | 931194 | Active | 04/30/2027 |
| 4ever Painting | 1054352 | Active | 06/30/2027 |
| A & C Electric Inc | 1094049 | Active | 07/31/2028 |
| A & R Concrete & Hardscape | 1003875 | Active | 05/31/2027 |
| A & R Concrete Construction | 903223 | Active | 06/30/2028 |
| A + Air Corp | 803450 | Active | 01/31/2028 |
| A - 1 Garage Doors & Repairs | 944691 | Active | 03/31/2028 |
| A A Martin | 617875 | Active | 04/30/2027 |
| A Better Connection - Plus | 753142 | Active | 04/30/2027 |
| A C R Technologies | 811487 | Active | 08/31/2028 |
| A Craftsman Finishing Touch | 939911 | Active | 11/30/2027 |
| A G Engineering Inc DBA Albert Gutierrez | 578984 | Active | 12/31/2026 |
| A Kaplan Construction Co Inc | 490989 | Active | 06/30/2028 |
| A Plus Sign Shops Inc | 1071195 | Active | 11/30/2026 |
| A R Electric | 768121 | Active | 09/30/2027 |
| A R Refrigeration | 985427 | Active | 07/31/2027 |
| A T J Construction | 1089769 | Active | 04/30/2028 |
| A T Pearl Electric | 933376 | Active | 06/30/2027 |
| A. Upland Fire Protection Inc | 1006684 | Active | 08/31/2027 |
| Aa Interlocking Pavers & Concrete Restoration | 1158131 | Active | 07/31/2028 |
| Aaa Network Solutions Inc | 938689 | Active | 10/31/2027 |
| Acclaimed Electric Services Inc | 1036762 | Active | 03/31/2028 |
| Accurate Colors Inc | 512353 | Active | 04/30/2028 |
| Accurate Heating And Air Conditioning LLC | 1008392 | Active | 10/31/2027 |
| Ace's Plumbing Services | 1146986 | Active | 12/31/2027 |
| Action Plumbing Inc | 965976 | Active | 01/31/2028 |
| Action Stainless Installation LLC | 1158642 | Active | 07/31/2028 |
| Active Lock And Safe | 938636 | Active | 10/31/2027 |
| Acv Electric | 1131003 | Active | 12/31/2026 |
| Advanced Comfort Mechanical | 1105767 | Active | 06/30/2027 |
| Advanced Green Restoration Enviromental Earth Inc | 963144 | Active | 07/31/2027 |
| Advanced Pool Solutions Inc | 1079981 | Active | 08/31/2027 |
| Advantage Asphalt Inc | 713752 | Active | 02/29/2028 |
| Affordable Handyman | 807165 | Active | 04/30/2028 |
| Afm HVAC | 811183 | Active | 06/30/2027 |
| Ag Tree Company | 1158116 | Active | 07/31/2028 |
| Agc Construction Co | 1109147 | Active | 08/31/2027 |
| Ags Pros Inc | 1120900 | Active | 05/31/2028 |
| Air Conditioning & Heating Service Master | 1049756 | Active | 02/28/2027 |
| Air Conditioning Engineering Inc | 236962 | Active | 06/30/2028 |
| Air Controlled Environments | 960569 | Active | 02/28/2027 |
| Air Dyne Mechanical | 645326 | Active | 05/31/2028 |
| Air Management Industries Incorporated | 783245 | Active | 08/31/2028 |
| Air There | 942851 | Active | 01/31/2028 |
| Aire Serv Of Upland-North Rancho Cucamonga | 1155217 | Active | 05/31/2028 |
| Airestream Mechanical Inc | 960348 | Active | 04/30/2027 |
| Aison Commercial Inc | 1144588 | Active | 10/31/2027 |
| Alaimo Jason Electric | 980530 | Active | 11/30/2027 |
| Albert Sharp | 905019 | Active | 10/31/2027 |
| Albert's General Construction | 1121324 | Active | 05/31/2028 |
| Alder Electric Inc | 1110973 | Active | 10/31/2027 |
| Alesam Construction | 1145598 | Active | 10/31/2027 |
| Alexander Ayala General Contractor | 965872 | Active | 09/30/2027 |
| All - Tech Construction Inc | 912478 | Active | 03/31/2028 |
| All Aces Backflow | 1071034 | Active | 11/30/2026 |
| All America General Contracting Inc | 902355 | Active | 08/31/2027 |
| All City Plumbing Air & Electrical | 940722 | Active | 02/29/2028 |
| All Contractors West Inc | 1001676 | Active | 03/31/2027 |
| All Phases Painting | 557861 | Active | 10/31/2027 |
| All Pro Electric Co | 576142 | Active | 08/31/2027 |
| All Pro Paint | 1006573 | Active | 08/31/2027 |
| All Pro Refrigeration Inc | 1038018 | Active | 04/30/2028 |
| All State Renovation LLC | 1082524 | Active | 10/31/2027 |
| All Tankless Water Heater And Plumbing | 1022579 | Active | 01/31/2027 |
| All Western Construction | 861627 | Active | 10/31/2028 |
| Allan Lin | 788865 | Active | 04/30/2028 |
| Allen-De Roofing/drywall Contractor | 599041 | Active | 07/31/2028 |
| Alliance Construction Co | 916836 | Active | 06/30/2028 |
| Allison Plumbing | 1094177 | Active | 07/31/2028 |
| Allowayvoltage LLC | 1152602 | Active | 03/31/2028 |
| Alloy Welding | 871635 | Active | 01/31/2028 |
| Alt Roofing Inc | 920480 | Active | 04/30/2028 |
| Alta Loma Plumbing | 522129 | Active | 12/31/2027 |
| Alta Rancho Air - Conditioning & Heating Co | 842084 | Active | 07/31/2028 |
| American Blast Inc | 1012147 | Active | 03/31/2028 |
| American Lock & Key | 825520 | Active | 07/31/2027 |
| American Made Plumbing Inc | 1112549 | Active | 08/31/2027 |
| American Polytech Coating Systems Inc | 907799 | Active | 07/31/2028 |
| American Threat Assessment Consulting Inc | 991079 | Active | 03/31/2028 |
| Amg Paving Corp | 1102632 | Active | 03/31/2027 |
| Amir Ghabrous | 1161677 | Active | 09/30/2028 |
| Amj Plumbing Specialists Corp | 955853 | Active | 03/31/2027 |
| Amphion | 930679 | Active | 04/30/2027 |
| Anderson Pool & Spa | 796500 | Active | 06/30/2027 |
| Andrew Mark Ibrahim | 1034561 | Active | 01/31/2028 |
| Andrews Electric | 714270 | Active | 10/31/2027 |
| Angels Air | 976406 | Active | 09/30/2028 |
| Anthony Hosek | 1048708 | Active | 01/31/2027 |
| Anthony's Carpet | 619586 | Active | 05/31/2027 |
| Antolin General Contractor & Tile Company | 791711 | Active | 02/28/2027 |
| Antonio Lopez | 1020383 | Active | 11/30/2026 |
| Apex Construction Services | 978539 | Active | 05/31/2028 |
| Ar & Sons | 1150841 | Active | 02/29/2028 |