| 1271 Construction Inc | B + C15, C54 | 2007 | Active |
| 2nd Generation Builders Inc | B | 2022 | Active |
| 3a Construction & Maintenance Inc | A, B + C10 | 2026 | Active |
| 3d Construction And Landscaping | B + C27 | 2021 | Active |
| 4 Point Contractors Inc | B | 2019 | Active |
| 5 Rivers Contractors | B | 2025 | Active |
| 8a Construction | B + C16, C36 | 2019 | Active |
| 911 Demo Inc | A + C21 | 2024 | Active |
| A 1 Precision Builders Management Inc | B | 2024 | Renew by Nov 30, 2026 |
| A C I | B | 2010 | Active |
| A C M E Maintenance & Construction Co | B | 2016 | Active |
| A D Construction Inc | B | 2000 | Active |
| A G Construction | B | 2014 | Active |
| A G M General Builders Inc | B | 2018 | Renew by Oct 31, 2026 |
| A P T General Engineering Inc | A | 2006 | Active |
| A V C Construction Inc | A + C51 | 2014 | Active |
| A-1 Drilling & Pump Inc | B + C57, D09 | 2010 | Active |
| A-C Electric Company | A, B + C10, C12, D42 | 1948 | Active |
| Abateco | B + ASB, C22, C53 | 1989 | Active |
| Abrasive Concepts Inc | A | 2011 | Active |
| Access Controls | B + C23, C33, D28 | 2016 | Active |
| Ace Construction Engineering | A | 2024 | Active |
| Acme Services Inc | B + C7, C10 | 1997 | Active |
| Acs Mechanical | B + C20, C39, C43 | 2018 | Active |
| Active Construction Services Inc | A | 2022 | Active |
| Adavco Inc | B + C36 | 1983 | Active |
| Adelina Construction | B | 2026 | Active |
| Adr Services | B | 2010 | Active |
| Advance Air Duct Cleaning | B + C2, D63 | 2012 | Active |
| Advanced Environmental Concepts Inc | A + HAZ | 1996 | Active |
| Advanced Plumbing Service | B + C20, C36 | 1992 | Active |
| Advanced Soil Technology And Engineering | A | 2024 | Active |
| Aftermath Cleanup And Hauling | B + C21, D63 | 2019 | Active |
| Agilitech | A + C10 | 2007 | Active |
| Aic Heating And Air | B + C10, C20, C46 | 2017 | Active |
| Aldana's Construction Inc | B | 2020 | Active |
| Alfredo's Construction Inc | B | 2015 | Active |
| All About The Business Septic Services | B + C36, HAZ | 2019 | Active |
| All Petroleum Pros Inc | A + HAZ | 2021 | Active |
| All Seasons Energy Solutions | B | 2010 | Active |
| Alley's Welding Inc | A + C23, C51 | 1998 | Active |
| Alliance Construction Services | A, B + C36 | 2026 | Active |
| Alliance Construction Technologies | B | 2021 | Active |
| Allied General Contractors Inc | B | 2014 | Active |
| Allstate Boring | A + D09 | 2006 | Active |
| Ally Enterprises | A | 2016 | Active |
| Alvarez & Womble Construction Inc | B + C35 | 2005 | Active |
| American Construction Design LP | B | 2025 | Active |
| American Enviro Services Inc | A, B + HAZ | 2021 | Active |
| American Utility Inc | A | 2026 | Active |
| Ameriswift Enterprises Inc | B + D63 | 2025 | Active |
| Anderson Group International | B + ASB, C10, D64 +1 | 2000 | Active |
| Anderson S C Inc | A, B + C8, D34 | 1983 | Active |
| Ankm Construction | B | 2026 | Active |
| Apex Integrators Inc | A + C51 | 2007 | Active |
| Arellano Grand Homes Inc | B | 2023 | Active |
| Armadillo Engineering | A + C21 | 2026 | Active |
| Asap General Contracting Inc | B | 2026 | Active |
| Ascend Real Estate And Property Management Inc | B | 2020 | Active |
| Asp Plumbing Inc | B + C36 | 2005 | Active |
| Atkinson M D Company Inc | B | 2009 | Active |
| Auburn Oak Builders Inc | B | 2015 | Active |
| Austin Enterprise | A + D06 | 1999 | Active |
| Axis Contracting Corp | B + C10 | 2024 | Active |
| B R Construction | B + C5 | 1996 | Active |
| B S W Roofing And Solar | B + C39, C46 | 2003 | Active |
| Backyard And Home Construction | B + C17, C36 | 2020 | Active |
| Bailey Kelly Construction Inc | B | 2015 | Active |
| Bakersfield Concrete & Construction | A | 1968 | Active |
| Bakersfield Concrete Limited Partnership | A + C8 | 2006 | Active |
| Bakersfield Construction Inc | A, B | 2022 | Active |
| Bakersfield Home Repair Service | B | 2021 | Active |
| Bakersfield Paving Inc | A + C12, C32, D34 | 2023 | Active |
| Bakersfield Realty Management Services Inc | B | 2005 | Active |
| Bakersfield Shingles Wholesale | B + C39 | 1992 | Active |
| Bakoboy Enterprise | B2 + C27 | 2021 | Active |
| Balfanz John Homes Inc | B | 1991 | Active |
| Banducci Construction Inc | B + C33 | 1993 | Active |
| Banks S G Inc | A + ASB, C34, C39 +3 | 2015 | Active |
| Bankson Construction & Inspection | B | 2015 | Active |
| Barron Construction Builders Inc | B + C10 | 2026 | Active |
| Bautista J Environmental Service Incorporated | A + HAZ | 2021 | Active |
| Baymarr Constructors Inc | A, B + C8 | 1988 | Active |
| Bedford Terry Concrete Construction Inc | B + C8 | 1990 | Active |
| Beltran Building | B | 2022 | Active |
| Berry Framing | B + C5 | 2016 | Active |
| Bics George A Plumbing Inc | B + C36 | 1968 | Active |
| Big Builders Inc | B + C20, C39 | 2008 | Active |
| Biltmore Properties | B | 1995 | Active |
| Blue Diamond Pools | B + C8, C53, D06 | 2020 | Active |
| Blumer Construction Inc | B | 1990 | Active |
| BMC Renovations LLC | B | 2025 | Active |
| BMS Developers Inc | B | 2025 | Active |
| BMV Inc | A, B | 2020 | Active |
| Bouchard Builders | B | 2024 | Active |
| Bowman Asphalt Inc | A | 2005 | Active |
| Bowman Construction LLC | A, B | 2013 | Active |
| Bowman2 Corp | A, B | 2025 | Active |
| Boykin General Contractor Inc | A | 1999 | Active |
| Brandt Oliver Homes Inc | B | 2013 | Active |