| A J M Engineering | 983482 | Active | 05/31/2027 |
| All Inclusive Environmental Services Inc | 1127315 | Active | 10/31/2026 |
| Black Rock Construction Company | 943308 | Active | 02/29/2028 |
| Burk Allen Inc | 1061113 | Active | 12/31/2027 |
| Burns & Mcdonnell West Engineering | 1107087 | Active | 07/31/2027 |
| Cal Tech Engineering & Construction | 760676 | Active | 03/31/2027 |
| California High Speed Partners | 1158124 | Active | 07/31/2028 |
| Cicero Engineering Incorporated | 812439 | Active | 12/31/2026 |
| Colas Construction USA Inc | 1080244 | Active | 08/31/2027 |
| Colas Rail Inc | 1078614 | Active | 07/31/2027 |
| Dexore Inc | 1077062 | Active | 06/30/2027 |
| Driveway Masters Inc | 572518 | Active | 06/30/2028 |
| G & W Builders Inc | 457076 | Active | 05/31/2028 |
| Green Point Design Build Services Inc | 1111185 | Active | 10/31/2027 |
| Griffith / Dutra Joint Venture | 922225 | Active | 09/30/2028 |
| Griffith Company | 88 | Active | 09/30/2028 |
| Griffith-Aldridge Joint Venture | 1145636 | Active | 10/31/2027 |
| Griffith-Atkinson JV | 1067118 | Active | 07/31/2028 |
| Griffith-Stacy And Witbeck A Joint Venture | 1104248 | Active | 05/31/2027 |
| Griffith-Vanguard Joint Venture | 1047062 | Active | 11/30/2026 |
| Harbor Environmental Group Inc | 936557 | Active | 08/31/2027 |
| Insight Environmental Engineering & Construction Inc | 864944 | Active | 09/30/2027 |
| Insight Pacific LLC | 1127370 | Active | 08/31/2028 |
| Issaco Builders | 853232 | Active | 01/31/2027 |
| Jilk Heavy Construction Inc | 709151 | Active | 07/31/2027 |
| KPRS Construction Services LLC | 751130 | Active | 12/31/2027 |
| M S Empire | 831787 | Active | 02/29/2028 |
| O D I C Environmental | 918987 | Active | 08/31/2028 |
| One Engineering Group | 1150181 | Active | 02/29/2028 |
| PGTM Construction Inc | 1030533 | Active | 08/31/2027 |
| Pacific Industrial Electric | 655104 | Active | 09/30/2028 |
| Pramira Inc | 1066171 | Active | 06/30/2028 |
| Preferred Ceilings Inc | 705630 | Active | 04/30/2027 |
| Quade Inc | 1077173 | Active | 06/30/2027 |
| Stanco Construction Co | 758104 | Active | 01/31/2027 |
| Sully - Miller Contracting Company | 747612 | Active | 03/31/2028 |
| Sully-Miller & MCM Construction Joint Venture | 1156565 | Active | 06/30/2028 |
| Sully-Miller Railworks Joint Venture | 1161250 | Active | 09/30/2028 |
| The Rooter Company LLC | 1119154 | Active | 04/30/2028 |
| Trane U S Inc | 1066318 | Active | 06/30/2028 |
| Tri Span Inc | 611639 | Active | 02/28/2027 |
| Trutec Engineering Inc | 979233 | Active | 12/31/2026 |
| Young CA Construction Inc | 513268 | Active | 09/30/2028 |
| Griffith Company-Henkels & Mccoy Joint Venture | 1100070 | J V Entity Susp | 12/31/2026 |
| Griffith-Act 1 Joint Venture | 1145684 | Workers' comp suspended | 10/31/2027 |
| Stassi's Backhoe Service | 705166 | Contr Bond Susp | 04/30/2027 |
| Stephen G Hoblick | 1049553 | Contr Bond Susp | 01/31/2027 |
| Sully-Miller/myers & Sons Joint Venture | 1139738 | Contr Bond Susp | 07/31/2027 |