| A No Fault Asphalt | A | 1988 | Active |
| Abbcm LLC | B | 2016 | Active |
| Accolade Restoration Inc | B | 2000 | Active |
| Adu Palo Alto | B | 1978 | Active |
| Aires Home Services Inc | B | 2026 | Active |
| Allana Buick & Bers Inc | B | 2002 | Renew by Nov 30, 2026 |
| Alma Builders Inc | B | 2015 | Active |
| Area Construction Inc | B | 2008 | Renew by Nov 30, 2026 |
| Atex Remodeling Corp | B2 | 2024 | Active |
| Atom Construction Inc | B | 2024 | Active |
| Aziz Construction | B | 2023 | Active |
| B & G Roofing Construction | B + C39 | 2019 | Active |
| Barzel Builders Inc | B | 2024 | Active |
| Batim Builders | B | 2019 | Active |
| Baystoneworks Inc | B | 2017 | Active |
| Beacon Development Inc | B | 1997 | Active |
| Bosch Construction Inc | B | 2010 | Active |
| Boutique Home Remodeling Inc | B | 2022 | Active |
| Brown Vance Inc | B | 1950 | Active |
| Byldan Corporation | B | 1996 | Active |
| California Superior Contractor Inc | B | 2013 | Active |
| Calisun Roofing | B + C10, C20, C36 +2 | 2019 | Active |
| Camenzind Dredging Inc | A | 2004 | Active |
| Cardinal Custom Construction Inc | B | 2016 | Active |
| Casita Development Company Inc | B | 2025 | Active |
| Cheng Properties Inc | B | 2010 | Active |
| Cox Bros Construction Inc | B | 1998 | Active |
| Design Avenue Group LLC | B | 2024 | Active |
| Dowell Construction Development Inc | B | 2019 | Active |
| Drewmaran Construction Inc | B | 1985 | Active |
| El Centro Builders Inc | B | 2024 | Active |
| European Cabinets By Design | B | 2007 | Active |
| Evergreen Air HVAC Corp | B + C10, C20 | 2023 | Active |
| Exact Builders LLC | B | 2008 | Active |
| Fortis GC Construction LLC | B | 2026 | Active |
| Franz Termite Control Corporation | B | 1991 | Active |
| G C 44 Inc | B | 2023 | Active |
| Gr8work Builders Inc | B | 1982 | Active |
| Gravelle Construction Inc | B | 1983 | Active |
| Greenberg Construction | B | 2014 | Active |
| Greenberg Construction Inc | B | 2022 | Active |
| Haaland J D Construction Inc | B | 1989 | Active |
| Hamilton257 Const. | B | 2023 | Active |
| Hiraoka Construction Inc | B | 2024 | Renew by Dec 31, 2026 |
| Hometech Construction & Design Inc | B | 2017 | Active |
| Hood General Contracting Inc | B + C10 | 2019 | Active |
| Innovo Builders Inc | B | 2015 | Active |
| Interiors For Modern Living Inc | B | 2007 | Active |
| Itek Contractors Inc | A, B + C21 | 2006 | Active |
| J G Universal Landscape Inc | B + C27 | 2006 | Active |
| Judd Enterprises Inc | B | 1957 | Active |
| Jva Management Corp | B | 2014 | Active |
| K K T Construction & Development Inc | B | 2005 | Active |
| Larsen-Hoffman Inc Contractors | B + C10, C36 | 1993 | Active |
| Legacy Edge Construction And Development LLC | B | 2026 | Active |
| Line Construction LLC | B | 2019 | Active |
| Link Corporation | B + C8, C10, C15 +5 | 2006 | Active |
| Lord Velazquez Builder & Plumbing Inc | A, B + C36 | 2016 | Active |
| Lux Design Build Group | B | 2019 | Active |
| M S J Construction Inc | B | 2004 | Active |
| Makena Signature Homes Inc | B + C36 | 2007 | Active |
| Mathers Rich Construction Inc | B | 1993 | Renew by Nov 30, 2026 |
| McDermaid Restoration & Remodeling | B2 + C33 | 2002 | Active |
| McDonald George Enterprises Inc | B + C2 | 1990 | Active |
| Miller H D Construction Company Inc | B | 1975 | Active |
| Mindframe Inc | B | 2021 | Active |
| Miracle Builders Group | B | 2021 | Active |
| Moffat Pete Construction Inc | B | 1991 | Active |
| Moses Hershko Development | A, B | 2019 | Active |
| My Nu Realty | B | 2010 | Active |
| ND Red Oak Builders Corp | B | 2025 | Active |
| New Flyer Construction Inc | B | 2026 | Active |
| Nextage Constructions Inc | B | 2012 | Active |
| North County Builders Construction Inc | B | 2024 | Active |
| Northwall Builders Inc | B | 2001 | Active |
| O R Builders Inc | B | 2009 | Renew by Nov 30, 2026 |
| Ollo Design & Build Inc | B | 2023 | Active |
| Page & Pio Construction Inc | B | 2001 | Active |
| Palo Alto Builders Inc | B | 2017 | Active |
| Palo Alto Building Company | B | 2008 | Active |
| Palo Alto Concrete & Construction Inc | B + C8 | 2006 | Renew by Nov 30, 2026 |
| Palo Alto Construction Inc | B | 2024 | Renew by Dec 31, 2026 |
| Palo Alto Construction Management Inc | B | 2021 | Active |
| Palon Construction Inc | B | 2026 | Active |
| Paragon Custom Builders | B | 2007 | Active |
| Paulicon Corporation | A, B + C10, C46 | 2006 | Active |
| Peninsula Dream Homes Inc | B | 2022 | Active |
| Plemons Construction Company Inc | B | 1988 | Active |
| Pro Builders | B | 2012 | Renew by Nov 30, 2026 |
| Resmini Architects Inc | B + C9 | 1978 | Active |
| S H Roofing & Construction | B + C39 | 2009 | Active |
| S L B M Inc | B | 2019 | Active |
| Seamless Renovation Inc | B | 2022 | Active |
| Servpro Of Palo Alto | B | 2024 | Active |
| SHR Remodeling LLC | B2 | 2024 | Active |
| Silicon Valley Builder Associates | B | 2016 | Active |
| Square 1 Homes | B | 2020 | Active |
| Stephano Homes | B | 1988 | Active |
| Sunplanter Incorporated | B | 2015 | Active |
| Techbeam Construction LLC | B | 2025 | Active |