| Freeman Construction Company | B | 2007 | Active |
| G 2 Metal Fab | A + C51 | 2008 | Active |
| G 3 Construction | B + C33 | 2024 | Active |
| G And L Brock Construction Company Inc | A + HAZ | 1987 | Active |
| G M Yaya's Construction | B | 2024 | Renew by Nov 30, 2026 |
| Garcia E Construction Inc | B | 2002 | Active |
| GC Bauer Inc | B | 2006 | Active |
| GC Multitrade Construction | B | 2025 | Active |
| Ghio A B Construction Inc | B | 2004 | Active |
| GL West Builder Inc | B | 2002 | Active |
| Gold Star Construccion Inc | B | 2022 | Active |
| Golden Bay Fence Plus Iron Works Inc | A, B + C10, C13, C23 | 1993 | Active |
| Golden State Irrigation And Pump Service | A + D21 | 2012 | Renew by Dec 31, 2026 |
| Goldfinch Builders Inc | B | 2026 | Active |
| Goldfinch Plastering Inc | B + C35 | 2016 | Active |
| Goldmark Construction Inc | B | 2026 | Active |
| Goldmine Communications Inc | A, B + C10 | 2022 | Renew by Dec 31, 2026 |
| Green River Builders Inc | B | 2026 | Active |
| Greener Solutions Inc | B + C10, C20, C36 | 1981 | Active |
| Greenshield Solutions Remodeling Inc | B2 | 2025 | Active |
| Grupe Homes | B | 2005 | Active |
| H & D Construction Inc | B | 2015 | Active |
| Haggerty | B | 2010 | Active |
| Hanley Construction | B + C10, C46, D28 | 1983 | Active |
| HDZ General Construction Inc | B | 2025 | Active |
| Heirloom Construction | B | 2026 | Active |
| Herrick | B + C51 | 1960 | Active |
| Holtberg Gary Construction Inc | B | 1997 | Active |
| Home Dream Construction | B | 2025 | Active |
| Horizon Renovations And Construction | B | 2018 | Renew by Nov 30, 2026 |
| HRC Builders Inc | B | 2016 | Active |
| Huante Construction Co | B + C35 | 2023 | Active |
| I&A General Construction | B | 2025 | Active |
| I:s Contractors LLC | B + C20, C33 | 2008 | Active |
| Inncal Incorporated | B | 1983 | Active |
| Innovated Construction & Consulting Inc | B | 2024 | Active |
| Interior Trim Specialists Inc | B + D28 | 2010 | Renew by Dec 31, 2026 |
| Interior Trim Systems Inc | B + D28 | 2021 | Active |
| Ipf Construction LLC | A | 2026 | Active |
| Irrigation Resources Inc | A | 1987 | Active |
| Isa Renovation Inc | B | 2025 | Active |
| J & J Superior Construction Inc | B | 2018 | Renew by Dec 31, 2026 |
| J Lazo General Contractor LLC | B | 2010 | Active |
| J O B Construction Inc | B | 2017 | Active |
| J&S Robinson Const LLC | B | 2022 | Active |
| Jaime&Riveira Construction Inc | B | 2024 | Active |
| Jaswal Dream Builder Inc | B | 2019 | Active |
| JC Construction & Renovations Inc | B | 2019 | Active |
| JD Specialties | B + D34 | 2024 | Active |
| Jenco Companies | B + C33, D06 | 1994 | Active |
| Jimenez & Sons Construction Inc | B + C13, C36 | 2018 | Active |
| Job Masters Construction Inc | B + C33 | 2021 | Active |
| Jop Building Solutions | B | 2026 | Active |
| K & S Ironworks Inc | B + C51 | 2016 | Active |
| K B C Construction Cleanup Services | B + C22, C39, D63 | 2015 | Active |
| King Builders Inc | B | 2015 | Active |
| Knife River Construction | A | 1977 | Active |
| LGD Remodeling Inc | B | 2025 | Active |
| Lloyd Development Inc | B | 1976 | Active |
| Lovotti Air | B + C10, C20, C36 | 2005 | Active |
| Lumcuit Inc | B2 + C10 | 2021 | Active |
| M & J Construction | B | 2022 | Active |
| M H P Builders Inc | B | 2009 | Active |
| Maloney W C LLC | A + C21 | 1996 | Active |
| Matthews JM Construction Inc | B | 2024 | Active |
| Mayo Tom Construction Inc | A | 1980 | Active |
| MC Laughlin Air Conditioning Co | B + C2, C15, C20 +2 | 1998 | Active |
| McFadden Construction Inc | A, B + ASB, C8 | 1991 | Active |
| Medida Construction Inc | B | 2026 | Active |
| Mep De Luna Construction Inc | B | 2022 | Active |
| Meza Environmental Inc | B + C21, C22, HAZ | 2016 | Active |
| Mid-Cal Construction Inc | A | 1972 | Active |
| Mid-Cal Constructors Inc | B | 2012 | Renew by Dec 31, 2026 |
| Midstate Barrier Inc | A + HAZ | 1988 | Active |
| Miller - Klein Development Inc | B | 1996 | Active |
| Monarca General Construction Inc | B | 2015 | Active |
| Mudville Construction Inc | B + C36, D50 | 2024 | Active |
| N C B Construction | B + C10 | 2009 | Active |
| N C S Development Inc | B | 2013 | Active |
| Naidu Pro Builders Inc | B + C33 | 2009 | Active |
| Ncmfg36 LLC | B | 2025 | Active |
| New Evolution Construction Services Inc | B | 2019 | Active |
| New Start Construction Inc | B | 2010 | Active |
| New View General Contractor Inc | B | 2026 | Active |
| Nexco Builders LLC | B | 2023 | Active |
| Nino Brothers Construction Inc | B | 2025 | Active |
| Norcal Dozers | A | 2023 | Active |
| Norcal Specialties LLC | B + D24, D28 | 2022 | Renew by Dec 31, 2026 |
| Norcal Valley Construction LLC | B | 2026 | Active |
| Norymar Maintenance Inc | B | 2006 | Active |
| O River Construction | B | 2020 | Active |
| Omg Environmental Inc | B + C21, HAZ | 2023 | Active |
| Ornelas J M Construction Inc | B | 2023 | Active |
| P D R Of Central Valley Ca | B | 2014 | Active |
| P N S B Builders Inc | B | 2018 | Active |
| Pacific Construction | B | 2011 | Active |
| Pacific Development Group Inc | B | 2021 | Active |
| Pacific Metro Electric Inc | B + C10 | 1995 | Active |
| Pacific Northwest Oil | A | 1995 | Active |
| Pacific Southwest Irrigation Corp | A + C34 | 2004 | Active |