| 4 S General Engineering Inc | 985349 | Active | 07/31/2027 |
| A J Zimmer Construction Inc | 745855 | Active | 11/30/2028 |
| Advantage Demolition And Grading Inc | 754795 | Active | 10/31/2028 |
| Ailm Underground Inc | 1147625 | Active | 12/31/2027 |
| Alcon Colorado Engineering Inc | 806202 | Active | 04/30/2028 |
| Aloha Construction Services Inc | 905383 | Active | 04/30/2027 |
| American West Development | 1124854 | Active | 08/31/2028 |
| Arneson & Son's Construction | 529482 | Active | 04/30/2027 |
| Arroyos Enterprises Inc DBA Arroyos General Engineering | 1070309 | Active | 10/31/2026 |
| Associated Construction And Engineering Inc | 960427 | Active | 10/31/2028 |
| Associated Tank Constructors Inc | 1023942 | Active | 02/28/2027 |
| Bedon Construction Inc | 752973 | Active | 08/31/2028 |
| Boehmer Construction Inc | 857814 | Active | 05/31/2027 |
| Bridgeview Construction Services Inc | 1073153 | Active | 02/28/2027 |
| Burchett Grading Inc | 891981 | Active | 03/31/2027 |
| CD Trenching LLC | 938605 | Active | 11/30/2027 |
| CKM Pipeline Inspection Services | 703025 | Active | 05/31/2028 |
| CM Corp Facilities Service | 951578 | Active | 10/31/2028 |
| Camp Constructors Inc | 1075642 | Active | 05/31/2027 |
| Candee Construction | 925343 | Active | 11/30/2026 |
| Canyon Springs Enterprises | 806747 | Active | 04/30/2028 |
| Carl White Grading And Excavating | 1069507 | Active | 10/31/2026 |
| Cesar Ramirez | 1036982 | Active | 03/31/2028 |
| Civil-Environmental-Survey Group Inc DBA C E S | 859757 | Active | 05/31/2027 |
| Colonial Engineers Inc | 1001403 | Active | 02/28/2027 |
| Compass Builders Inc | 1014045 | Active | 05/31/2028 |
| Construct & Maintain Corp | 817124 | Active | 08/31/2028 |
| Contera Construction Corporation | 663817 | Active | 01/31/2027 |
| Cross & Covenant Construction Inc | 1070176 | Active | 12/31/2027 |
| DBX Inc | 240547 | Active | 07/31/2027 |
| Dean's Engineering | 618842 | Active | 05/31/2027 |
| Delmon Corporation DBA Aqua Bear Plumbing & Drain | 1082574 | Active | 10/31/2027 |
| Devco | 1105687 | Active | 06/30/2027 |
| Don MC Coy Corporation | 703480 | Active | 03/31/2027 |
| Double D Pipeline Inc | 544467 | Active | 10/31/2026 |
| Edmond Mietzner | 1017675 | Active | 08/31/2028 |
| Eh Freeman Engineering And Construction | 1149713 | Active | 01/31/2028 |
| Elka Construction Inc | 1083334 | Active | 11/30/2027 |
| Enviroworks Engineering | 1048823 | Active | 01/31/2027 |
| Fco Construction | 938415 | Active | 10/31/2027 |
| Fedvet Construction | 1015542 | Active | 06/30/2028 |
| Frank Michalak | 420589 | Active | 04/30/2028 |
| G R W General Engineering Incorporated | 997878 | Active | 10/31/2028 |
| G S I | 806845 | Active | 04/30/2028 |
| Garney Pacific Inc | 999415 | Active | 12/31/2026 |
| Gerald Evan Allen | 771246 | Active | 05/31/2027 |
| Grimm Construction Engineering | 1125089 | Active | 08/31/2028 |
| Henry's Grading | 989465 | Active | 05/31/2027 |
| Hexagon Build Co | 1146905 | Active | 11/30/2027 |
| Inland Empire Underground | 1151696 | Active | 03/31/2028 |
| Inland Erosion Control Services Inc | 801184 | Active | 11/30/2027 |
| Inland Valley Engineering Inc | 850477 | Active | 12/31/2026 |
| Inland Valley Pipeline Inc | 887253 | Active | 11/30/2026 |
| J D Burns | 580662 | Active | 12/31/2026 |
| J M J Construction | 938561 | Active | 09/30/2028 |
| J W O'neil Construction Inc | 1116026 | Active | 02/29/2028 |
| JTB Contracting Inc | 762659 | Active | 08/31/2027 |
| JWJ Construction Services Inc | 1146575 | Active | 11/30/2027 |
| KGG Concrete Inc DBA KGG Concrete Construction | 1107284 | Active | 07/31/2027 |
| KZ Equipment Services | 1056071 | Active | 07/31/2027 |
| Kallen Contracting Inc | 907536 | Active | 12/31/2027 |
| Kee Solutions Inc | 1057923 | Active | 09/30/2027 |
| Lackey Grading Inc | 805625 | Active | 03/31/2028 |
| Lanik Enterprises Inc | 458947 | Active | 09/30/2027 |
| Lavelle Pierson Holland JR | 436200 | Active | 11/30/2026 |
| Lunoor Construction Inc | 1026171 | Active | 04/30/2027 |
| M V P Commercial | 822959 | Active | 08/31/2027 |
| M W Services Inc | 780202 | Active | 06/30/2028 |
| Malcolm Aton | 699688 | Active | 06/30/2028 |
| Malek Engineering And Construction | 1131914 | Active | 01/31/2027 |
| Maverick General Engineering | 1064886 | Active | 04/30/2028 |
| Mcgrant Engineering | 1127258 | Active | 10/31/2028 |
| Mercer Construction Co | 407578 | Active | 06/30/2027 |
| Murrieta Development Company Inc | 558592 | Active | 02/28/2027 |
| Pacific Construction Analysts Inc | 833399 | Active | 03/31/2028 |
| Perpetual Parks & Playgrounds Inc | 929916 | Active | 03/31/2027 |
| Profusion Enterprise Inc | 1065169 | Active | 04/30/2028 |
| Prowess Utility Group Inc | 1014398 | Active | 05/31/2028 |
| Purodyne Corporation | 978736 | Active | 11/30/2026 |
| R C Grading Inc | 839973 | Active | 06/30/2028 |
| Ricchio Company | 1098966 | Active | 11/30/2026 |
| San Diego General Contractors Inc | 1095232 | Active | 07/31/2028 |
| Sean Malek Engineering And Construction | 535009 | Active | 04/30/2028 |
| So - Cal Pipeline Welding Inc | 837155 | Active | 04/30/2028 |
| Solex Contracting Inc | 842101 | Active | 07/31/2028 |
| Solid Contracting Inc | 963873 | Active | 03/31/2028 |
| Soussan Bathaee | 937400 | Active | 09/30/2027 |
| Southwest Infrastructure Inc | 1141220 | Active | 07/31/2027 |
| Specktrum Engineering | 804150 | Active | 04/30/2027 |
| Sunland Sewer Company | 992433 | Active | 04/30/2028 |
| Surefire Underground Consulting | 962481 | Active | 12/31/2027 |
| T & K Engineering | 399288 | Active | 01/31/2028 |
| T N T Blanchard General Engineering Inc | 927113 | Active | 01/31/2027 |
| Tank Specialists Of California | 745065 | Active | 01/31/2028 |
| Task Force Construction Co | 586895 | Active | 01/31/2028 |
| Trinity Grading Incorporated | 847643 | Active | 09/30/2028 |
| Troy D Juve | 809915 | Active | 07/31/2027 |
| Ultimo Organization Inc | 338922 | Active | 06/30/2027 |
| Ultraflote Inc | 1072703 | Active | 01/31/2027 |
| United Underground Pipeline Inc | 1134362 | Active | 03/31/2027 |