| A A Glass Shop Inc | B + C17 | 2008 | Active |
| Advanced Pool Coatings | B + C53, D06, D12 | 1994 | Active |
| Akiva Building Consultants Inc | B | 2020 | Renew by Nov 30, 2026 |
| Astra Spaces | B + C17 | 2024 | Renew by Nov 30, 2026 |
| Atlas Building Solutions | B + C39 | 2017 | Active |
| Barnum Mechanical Inc | A | 1991 | Active |
| Bews Dan Construction Inc | B | 1984 | Active |
| Buildyourdreams Exteriors | B | 2026 | Active |
| Buskirk Building Solutions | B | 2012 | Active |
| Call 2 Fix | B | 2011 | Active |
| Capital Construction Partners Inc | B | 2023 | Active |
| Catamount Construction | A + ASB, C12, HAZ | 1989 | Active |
| CJ Gentry Enterprises Inc | B + C54 | 2008 | Active |
| Claw Construction LLC | B + C27 | 2023 | Active |
| Cojo Development Group | B + C13 | 2025 | Active |
| Craythorn Construction Inc | B | 2000 | Active |
| D K M Heating & Air Conditioning | B + C20, C43 | 1988 | Renew by Nov 30, 2026 |
| D R J Construction Inc | B | 2003 | Active |
| Daly John Construction Inc | B | 2003 | Active |
| DC Controls Inc | A, B + C13, D28 | 2024 | Active |
| Double Jack Industries LLC | A | 2026 | Active |
| Duarte Construction | B + C6 | 1977 | Active |
| Egret Development & Construction LLC | B | 2023 | Active |
| Foothill Construction Inc | B + C10, C33 | 2021 | Active |
| Foothill Fire Protection Inc | B + C10, C16, C34 | 2000 | Active |
| Forest To Frame Construction Solutions LLC | B | 2024 | Active |
| Glissman Excavating Inc | A | 1992 | Active |
| Hale J C Construction Incorporated | B | 2000 | Active |
| Hauswerks Construction Inc | B + C6 | 2010 | Active |
| Ic Construction Inc | B | 2011 | Active |
| Integrated Facilities Services | A, B | 1976 | Active |
| J L S Environmental Services Inc | A, B + ASB, C21, C22 +1 | 2002 | Active |
| J S Construction | B | 1992 | Active |
| J9 Engineering | A | 2017 | Active |
| Jeffrey R Grenz General Contractor | B | 2017 | Active |
| Jensen Pete Pinnacle Construction Inc | B | 1995 | Active |
| JNT Building And Remodeling Inc | B | 2009 | Active |
| Joseph Morgan And Sons Construction Inc | B | 1990 | Active |
| Kingsley Builders Inc | B + C10 | 2007 | Active |
| Knotts Wyatt Construction Inc | B | 2013 | Active |
| Lamassu Utility Services Inc | A + C10, C42 | 2016 | Active |
| Lane Built Inc | A, B + C33 | 2002 | Active |
| Lawlor Brothers Incorporated | B + C33 | 2010 | Active |
| Leeman Brothers Drywall Inc | B + C9 | 1995 | Active |
| Legacy Tahoe LLC | B | 2013 | Active |
| Level 5 Builders Inc | B + C9 | 2015 | Active |
| Lisac Kitchen And Bathrooms Inc | B + D12 | 2004 | Active |
| Lobo Services LTD | B | 1996 | Active |
| Loomis Home Services | B | 1990 | Active |
| Loomis Restore Corporation | B | 2024 | Active |
| M 2 Builders | B | 2004 | Active |
| M S L Construction Corp | B + C10 | 2021 | Active |
| Madera Framing Inc | B | 2002 | Active |
| Magic Sun Electric Inc | B + C10 | 2010 | Active |
| Magic Sun Solar Inc | B + C10 | 2010 | Active |
| Mantell Masonry Construction Inc | B + C29 | 1983 | Active |
| Marjama Inc | B | 1951 | Renew by Nov 30, 2026 |
| MC Cuen Construction Inc | A, B | 2006 | Active |
| Metco Construction Inc | B | 2016 | Active |
| Mi Home Improvements | B | 2025 | Active |
| Murza Core | A + C27, HAZ | 2014 | Active |
| Neighborhood Construction Inc | B | 1987 | Active |
| New Life Renovations Inc | B | 2020 | Active |
| Next Step Construction LLC | B | 2025 | Active |
| Nextlevel Construction & Renovations Inc | B | 2026 | Active |
| Nolen Contractors | B + C10 | 2010 | Active |
| Ochs S D Construction Inc | B | 2001 | Active |
| Odin Real Estate Group LLC | A + HAZ | 2018 | Active |
| On-Site Engineering & Asphalt | A | 2004 | Active |
| One Up Construction | B | 2011 | Active |
| Paynter Construction Inc | B | 2004 | Active |
| Phoenix Builders Inc | B + C10 | 2009 | Active |
| Portable Facilities Leasing Inc | B | 2013 | Active |
| Precision Earthworks Construction Inc | A + C12 | 2013 | Active |
| Pronesti Enviro Inc | A | 2016 | Active |
| Pronesti Environmental Inc | A + C27, D59 | 2013 | Active |
| Pronesti Excavation Inc | A + C27 | 1991 | Active |
| Ray Pound Consulting Inc | B | 1998 | Active |
| RM Loomis Construction | B | 2026 | Active |
| Rollin Electric | B + C10 | 2016 | Active |
| S B Excavation And Construction Inc | B | 2025 | Active |
| S E L Construction Corporation | B + C10 | 2014 | Active |
| Ser-Go Builders Inc | B | 2026 | Active |
| Service Master Recovery Services By LW | B | 2024 | Active |
| Sherman Brothers Construction & Roofing Inc | B + C39 | 1997 | Active |
| Sierra Valley Roofing & Construction | B + C39 | 1992 | Active |
| Sierra Wes Wall Systems Inc | B + C2, C9, C35 | 2008 | Active |
| Smith Company Inc The | B + D28 | 1998 | Active |
| Southwest Grading Inc | A | 1989 | Active |
| Starwood Building Solutions LLC | B | 2021 | Active |
| Steagall Clyde G Inc | A, B + C10, C20 | 1980 | Active |
| Steve's Excavating Inc | A | 2005 | Active |
| Streng Construction Inc | B | 1994 | Active |
| Striplin Walker Construction Inc | B | 2003 | Active |
| Studebaker Electric Inc | A, B + C10, C31 | 2011 | Active |
| T B C Construction Inc | B | 2011 | Active |
| TCW Concrete Inc | A + C8 | 2018 | Active |
| True Blue Plumbing Co | B + C36 | 2006 | Active |
| Tubol Enterprises Inc | A, B + C13, C23, D28 | 2011 | Active |
| Variegate Group The | B | 2010 | Active |