| Multiple Pump Services Inc | A + D21 | 2005 | Active |
| Multiple Pump Solutions Inc | A | 2010 | Active |
| Muro Construction LLC | B | 2022 | Active |
| Muxen Construction LLC | B | 2025 | Active |
| Myers & Sons / Teichert A Joint Venture | A, B | 2019 | Active |
| Myers - Acc A Joint Venture | A, B | 2018 | Active |
| Myers And Sons - Griffith | A, B | 2018 | Active |
| Myers And Sons / R L Wadsworth Joint Venture | A, B | 2018 | Active |
| Myers Rados A Joint Venture | A, B | 2019 | Active |
| Myers-Cec | A, B | 2021 | Active |
| Myers-George Reed | A, B | 2020 | Active |
| Myers-Odin | A, B + HAZ | 2022 | Active |
| Myers-Ortiz | A, B | 2022 | Active |
| Myers-Shea A Joint Venture | A, B | 2020 | Active |
| Myers-Shimmick A Joint Venture | A, B | 2020 | Active |
| Myers-Skanska A Joint Venture | A | 2022 | Renew by Nov 30, 2026 |
| Myers-Traylor Joint Venture | A | 2024 | Active |
| MZ General Construction Inc | B | 2026 | Active |
| N W R Construction LLC | B | 1995 | Active |
| N4 Builders Inc | B | 2014 | Active |
| N8 Constructors Inc | B | 2021 | Active |
| Nac Renovations Inc | B | 2020 | Active |
| Naos Remodeling LLC | B2 | 2025 | Active |
| Nar Design Group | B | 2003 | Active |
| National Construction Associates | B | 2016 | Active |
| National Elite Construction | B | 2022 | Active |
| National High Voltage Services Inc | A + C10 | 2015 | Active |
| Navajo Pipelines Inc | A | 1992 | Active |
| Neighborhood Restoration Team | B | 2022 | Active |
| New General Construction LLC | B | 2025 | Active |
| New Generation Build | B | 2025 | Active |
| New Green Construction Inc | B | 2018 | Renew by Dec 31, 2026 |
| New Horizon Remodeling Inc | B2 | 2026 | Active |
| New West Partitions | B | 1996 | Active |
| Newgen Construction Inc | B | 2024 | Active |
| Nexgen Design & Construction | B | 2026 | Active |
| Next Mile Construction Solutions | A | 2025 | Active |
| Nian's Construction Inc | B | 2025 | Active |
| Nieto Construction & Home Improvements LLC | B | 2022 | Active |
| Nmi Industrial Holdings LLC | A, B + C11, C36, C51 +2 | 2010 | Active |
| Nor - Cal Roofing Inc | B + C39 | 1994 | Active |
| Nor-Cal Roofing | B + C39 | 2022 | Active |
| Norcal Building & Renovation Inc | B + C10, C17, C36 | 2021 | Active |
| Norcal Designs & Construction Inc | B | 2016 | Active |
| Norcal Development | B + C17 | 2001 | Active |
| Norcal Dream Home Remodeling | B2 + C10 | 2025 | Active |
| Norcal Wash Construction | B + C33, C39 | 2022 | Active |
| Nortega Construction Inc | B | 2026 | Active |
| North State Construction | A, B + C13 | 2018 | Active |
| Northern California Construction Training Inc | B | 1996 | Active |
| Nova Construction Builder LLC | B | 2025 | Active |
| Ns1 Roofing Inc | B + C39 | 2021 | Active |
| Nuance Enterprises Inc | B + C47, D34 | 2009 | Active |
| Nuevo Construction Inc | B | 2024 | Active |
| Nur Construction | B | 2023 | Active |
| Nyecon Inc | B | 1989 | Active |
| Nyeri Remodel Construction LLC | B2 | 2024 | Active |
| Odyssey Solutions LLC | B | 2026 | Active |
| Ohana Renovations Inc | B | 2021 | Active |
| Ol Renovation And Home Improvements LLC | B | 2023 | Active |
| Olympic Land-Construction Inc | A + C27, C33 | 1982 | Active |
| Onelove Dream Builders LLC | B | 2025 | Active |
| Onsum Home Renovation Inc | B | 2026 | Active |
| Order Inc | B | 2021 | Active |
| Original Builders & Restoration Inc | B | 2004 | Active |
| Ornate Constructions Inc | B | 2024 | Renew by Nov 30, 2026 |
| Otto Construction | A, B | 1958 | Active |
| Ow Builders LLC | B | 2023 | Active |
| Oz Global Construction | B | 2025 | Active |
| P & G Pro Builders Inc | B | 2024 | Active |
| P & R Tower Company Inc | B + C10, D64 | 1976 | Active |
| P A C E Performance Construction Inc | B + C10, C17, C20 +1 | 2008 | Active |
| P And P Building Wrecking Inc | B + ASB, C21, C22 +1 | 1971 | Active |
| P G B C Inc | B + C5 | 2010 | Active |
| P H I Construction | B | 2021 | Active |
| P R S Construction & Restoration Inc | B + C33 | 1995 | Active |
| P S Construction Inc | B | 2001 | Active |
| Pacific Builders | B + C8, C17, D03 +1 | 1963 | Active |
| Pacific Builds Construction | B | 2026 | Active |
| Pacific Coast Corporation | B | 2024 | Active |
| Pacific Coast Engineering And Construction Group | A, B | 2019 | Active |
| Pacific Construction Solutions Inc | B | 2018 | Active |
| Pacific Rim Fall Protection Inc | B | 2014 | Active |
| Palapa Pros Landscape Construction | B2 + C27 | 2012 | Active |
| Pantoja General Builders | B | 2025 | Active |
| Papo Construction Inc | B | 2018 | Renew by Nov 30, 2026 |
| Parker Landscape Development Inc | A + C8, C27 | 2005 | Active |
| Parkland NS Inc | B | 2026 | Active |
| Parra's Construction Inc | B | 2022 | Active |
| Pavlo Builder Inc | B | 2019 | Active |
| PCB Construction Inc | B + C10, C20, C38 | 2024 | Active |
| Pci Contractors Inc | B | 2024 | Active |
| PDR Enterprises | B | 1994 | Active |
| Pei Placer Electric Incorporated | B + C10 | 1985 | Active |
| Perry's Repair & Renovation LLC | B | 2026 | Active |
| Perusa General Construction | B | 2023 | Active |
| Pest Pros Pest Solutions | B | 2022 | Active |
| PFC | B | 2018 | Active |
| Phase 3 Construction Inc | B | 2000 | Active |
| Phelps Construction | B | 2024 | Active |