| Global Building Corporation | B | 2012 | Active |
| Golson Jason Construction Inc | B | 2014 | Active |
| Gonterman Construction Corporation | B | 2005 | Active |
| Graystone Custom Builders Inc | B | 2012 | Active |
| H A A Construction | B | 2013 | Active |
| Hagopian P H Contractor Inc | A, B + HAZ | 1986 | Active |
| Harbor Development Inc | B | 2023 | Active |
| Hbi Commercial Construction Inc | B | 2023 | Active |
| Hbi Construction Incorporated | B | 1993 | Active |
| Hearthside Luxury Home | B | 2018 | Active |
| Henry Steve Electric Inc | B + C10 | 1992 | Active |
| HHCM Corporation | B | 2012 | Active |
| Holiday A J Construction Inc | B | 2020 | Renew by Dec 31, 2026 |
| Hout Engineering | A | 2016 | Active |
| I D L Home Inc | B | 1999 | Active |
| Icgc LLC | B | 2021 | Active |
| Illuminart Group | B | 2020 | Active |
| Innovative Craftsmanship Inc | B | 2017 | Active |
| Irvine Community Development Company LLC | A, B | 2012 | Active |
| Irvine Pacific LLC | B | 2020 | Active |
| J & M Homes | B | 2016 | Active |
| J C III Development | B | 2008 | Active |
| J P T Construction Inc | B + C10 | 2006 | Active |
| Jackson Land Corporation | B | 1986 | Active |
| JM Kelley Builders Inc | B | 2019 | Active |
| John Dwyer Construction Inc | B + C8 | 1998 | Renew by Nov 30, 2026 |
| Juniper Construction Inc | B | 2017 | Active |
| K M K Development | B | 2005 | Active |
| K N R Builders | B + C9, C33 | 2000 | Active |
| Kazoni Construction | A, B + C51 | 2012 | Active |
| Kc2 Group | A, B + C20, C36, HAZ | 2021 | Active |
| Kdoc Construction LLC | B + C9 | 2017 | Active |
| Kellmar Inc | B | 1985 | Active |
| Kennedy Richter Construction California LLC | B | 2025 | Active |
| Kime Builders LLC | B | 2023 | Active |
| Kincaid Michael J Construction Company | B | 1984 | Active |
| La Placa Development | B | 2000 | Active |
| Laguna Bay Mold Testing | B | 2021 | Active |
| Lake House Builders | B | 2021 | Active |
| Left Coast Development Inc | B | 2021 | Active |
| Legacy C D M Inc | B | 2011 | Active |
| Legacy Custom Homes Inc | B | 2013 | Active |
| Legacy Remodeling And Construction | B | 2023 | Active |
| Lehigh Construction Inc | B | 2026 | Active |
| Longman Construction Company Inc | B | 1980 | Active |
| Look Wow Builders | B | 2024 | Active |
| Los Trancos Development Inc | B | 1998 | Active |
| Lucas DC LLC | B | 1969 | Active |
| Lyon Communities | B | 1993 | Active |
| Lyon Community Development | B | 1993 | Active |
| M A A S Companies Inc | B | 2017 | Active |
| M C M | B | 2005 | Active |
| M G S Group LLC | B | 2018 | Active |
| M J P B Properties USA Inc | B | 2018 | Active |
| Marlin Pacific Corporation | B | 2025 | Active |
| Mason Steven Construction Inc | B | 2024 | Active |
| Maverick Environmental Construction Solutions Inc | B + C22 | 2021 | Active |
| Max Pro Construction | B | 2024 | Active |
| Mbi | A, B + C21 | 2009 | Active |
| MC Ginnis's Remodeling Inc | B + C33 | 1991 | Active |
| McCarthy Building Companies Inc | A, B + C4, C8, C10 +3 | 1981 | Active |
| McCutchan Consult And Construct Inc | B | 1990 | Active |
| McKelvey Corporation | A, B + C50 | 1986 | Active |
| Memar Inc | B | 2016 | Active |
| Metro Builders & Engrs' GRP LTD | A, B + C10, C51 | 1990 | Active |
| Millennium Construction | B + C8, C27, C29 +1 | 2002 | Active |
| Mondeca Design And Construction Inc | B | 2023 | Active |
| Mountain Dog Contracting Inc | B | 2025 | Active |
| Mutzco Construction | B | 1988 | Active |
| MVRK Builders LLC | B | 2021 | Active |
| Nawk Development Inc | A, B | 1980 | Active |
| New Wave Builders Inc | B | 2023 | Active |
| Newbridge Development LLC | B | 2019 | Active |
| Newport Construction Services Inc | B + C27, C33 | 2020 | Active |
| Newport Harbor Construction Inc | A | 1996 | Active |
| Newport Property Services Inc | B + C36 | 2021 | Active |
| Nicholson Construction Company | B | 1992 | Renew by Dec 31, 2026 |
| Nicolaisen Homes Inc | B | 2026 | Active |
| Ninesquare LLC | B | 2026 | Active |
| Northwoods Construction Co Inc | B | 1975 | Active |
| O C Realty Services Inc | B | 2012 | Active |
| O'Sullivan Martin And Shelly Inc | B | 2002 | Active |
| Obsidian Guild Inc | B | 2025 | Active |
| Olen Development Corp | B | 2007 | Active |
| Omega Environmental Services Inc | B + D63 | 2012 | Active |
| Orange Coast Construction Company | B | 1972 | Active |
| Ot Custom Construction | B | 2025 | Active |
| Outsmart Construction | B | 2024 | Active |
| P L C Apartments LLC | B | 2020 | Active |
| Pacific Communities Builder Inc | B | 1992 | Renew by Dec 31, 2026 |
| Pacific Construction Improvement Group Inc | B + C33 | 2018 | Renew by Dec 31, 2026 |
| Pacific Home Exteriors Inc | B | 2026 | Active |
| Pacific Metal Construction Inc | B + C9, C35 | 1994 | Renew by Dec 31, 2026 |
| Pacific Tusk Builders Corp | B | 2010 | Active |
| Pacific Western Engineering Contractors Inc | A, B | 1973 | Active |
| PB Contruction Management & Consulting Inc | B | 2016 | Active |
| Peninsula Custom Home Builders Inc | B | 2004 | Active |
| Phillcon Incorporated | B | 2024 | Active |
| Picerne Construction Company LLC | B | 2020 | Active |
| Planet Home Development Inc | B | 2012 | Active |