| J Sluis Construction Inc | CC-01 | 2021 | Active |
| J U Contracting Inc | CC-01 | 2015 | Active |
| J&H Projects LLC | CC-01 | 2025 | Active |
| J&K Commercial Const LLC | CC-01 | 2014 | Active |
| J&M Construction | CC-01 | 2018 | Active |
| J1n Development LLC | CC-01 | 2021 | Active |
| Ja-Mak Contracting LLC | CC-01 | 2025 | Active |
| Jack Everett Custom Bldrs LLC | CC-01 | 2025 | Active |
| Jafo Excavation LLC | CC-01 | 2020 | Active |
| James W Elmer Construction Co | CC-01 | 1990 | Active |
| Jason Cross Carpets LLC | CC-01 | 2019 | Active |
| Jay's Home Repairs | CC-01 | 2025 | Active |
| Jay's Top Notch Pntng/More LLC | CC-01 | 2022 | Active |
| JC Flooring LLC | CC-01 | 2017 | Active |
| JD Floorcovering | CC-01 | 2019 | Active |
| Jdi Contracting Group | CC-01 | 2025 | Active |
| Jemyers Contractor Inc | CC-01 | 2018 | Active |
| Jewsbury Siding & Windows | CC-01 | 2025 | Active |
| Jj's Painting LLC | CC-01 | 2026 | Active |
| JJV Construction LLC | CC-01 | 2025 | Active |
| JLS General Const Inc (Ca) | CC-01 | 2026 | Active |
| JLS Premium Builders LLC | CC-01 | 2022 | Active |
| JM Epoxy Flooring & DSGN LLC | CC-01 | 2026 | Active |
| JMM Home Services | CC-01 | 2026 | Active |
| JMT Builders LLC | CC-01 | 2005 | Active |
| JNB Innovations LLC | CC-01 | 2026 | Active |
| Jo Construction LLC | CC-01 | 2024 | Renew by Oct 30, 2026 |
| Joes Elite RFNG & Gen Cont LLC | CC-01 | 2025 | Active |
| John Ball Construction Inc | CC-01 | 2010 | Active |
| Johnson Brothers Const Inc | CC-01 | 1989 | Active |
| Johnson Construction/Rmdl LLC | CC-01 | 2022 | Active |
| JP Const & Remodeling LLC | CC-01 | 2026 | Active |
| JP Construction And Design LLC | CC-01 | 2022 | Active |
| Justin Johnston Const LLC | CC-01 | 2020 | Active |
| Justin Schmidt RMDL & DSGN LLC | CC-01 | 2021 | Active |
| JVC Roofing LLC | CC-01 | 2024 | Active |
| JW Masonry Inc | CC-01 | 2013 | Active |
| K & L Mechanical LLC | CC-01 | 2019 | Active |
| K&H Facility Services LLC | CC-01 | 2008 | Active |
| K&J Construction LLC | CC-01 | 2025 | Active |
| K2 Landscaping LLC | CC-01 | 2022 | Active |
| Kardav Construction LLC | CC-01 | 2023 | Active |
| Karma LLC | CC-01 | 2026 | Active |
| Katie Zimmerman Const LLC | CC-01 | 2026 | Active |
| Kc's Remodeling & Repair LLC | CC-01 | 2023 | Active |
| Kcc&E LLC | CC-01 | 2023 | Active |
| Kce Enterprises LLC | CC-01 | 2023 | Active |
| KD Heating & Air Conditioning | CC-01 | 2025 | Active |
| Keen Works Exvtng &Cntrng LLC | CC-01 | 2026 | Active |
| Keith Hanson GNRL Cntrctng LLC | CC-01 | 2019 | Active |
| Kellco Home Improvement LLC | CC-01 | 2016 | Active |
| Kellcraft Inc | CC-01 | 2007 | Active |
| Kelsey & Co General Contrng | CC-01 | 2019 | Active |
| Ken Spilker Masonry Co | CC-01 | 1984 | Active |
| Ken Wilson Construction Inc | CC-01 | 2006 | Active |
| Kentner's Painting/Cntrng LLC | CC-01 | 2023 | Active |
| Kepos Boetheos | CC-01 | 2023 | Active |
| Keystone Carpets Inc | CC-01 | 2011 | Active |
| Ki Construction LLC | CC-01 | 2021 | Active |
| Kingdom Excav & Handy Work LLC | CC-01 | 2024 | Active |
| Kings Custom Finishes Inc | CC-01 | 2022 | Active |
| Kington Painting LLC | CC-01 | 2026 | Active |
| Kinley Construction LLC | CC-01 | 2024 | Active |
| Kipr Construction LLC | CC-01 | 2026 | Active |
| Kirwin Construction LLC | CC-01 | 2024 | Active |
| Kiselev LLC | CC-01 | 2020 | Active |
| Kitchen Place Inc, The | CC-01 | 2000 | Active |
| KLC Construction | CC-01 | 2017 | Active |
| Klean Kata Window Cleaning LLC | CC-01 | 2016 | Active |
| KM Development NW LLC | CC-01 | 2021 | Active |
| Kmak Construction | CC-01 | 2024 | Active |
| Knapton Development LLC | CC-01 | 2023 | Active |
| Kodiak Construtction LLC | CC-01 | 2026 | Active |
| Kofmehl Inc | CC-01 | 1986 | Active |
| Konestes Construction LLC | CC-01 | 2026 | Active |
| Kono Construction | CC-01 | 2026 | Active |
| Kop Const Co Inc | CC-01 | 1967 | Active |
| Kopasetic Construction LLC | CC-01 | 2026 | Active |
| Kopco LLC | CC-01 | 2019 | Active |
| Kortness & Son General CNT LLC | CC-01 | 2022 | Active |
| Kosta Remodeling LLC | CC-01 | 2023 | Active |
| Kozy Builds LLC | CC-01 | 2025 | Active |
| Kroeze Construction LLC | CC-01 | 2005 | Active |
| Kru Construction LLC | CC-01 | 2022 | Active |
| Krueger Sheet Metal Co | CC-01 | 1965 | Active |
| Krutov Construction Inc | CC-01 | 2018 | Renew by Dec 22, 2026 |
| KSK Construction Inc | CC-01 | 2012 | Active |
| KSM Customs LLC | CC-01 | 2025 | Active |
| KSM Excavating LLC | CC-01 | 2023 | Active |
| Kti LLC | CC-01 | 2025 | Active |
| Kuney, Max J Co | CC-01 | 1963 | Active |
| Kuney-Brennan Joint Venture | CC-01 | 2026 | Active |
| L B Stone Contracting LLC | CC-01 | 2018 | Active |
| L Johnson Construction LLC | CC-01 | 2025 | Active |
| L Squared Concrete LLC | CC-01 | 2021 | Active |
| L.Levy Construction LLC | CC-01 | 2026 | Active |
| Lacayo Construction LLC | CC-01 | 2026 | Active |
| Lake City Contractors LLC | CC-01 | 2005 | Active |
| Lambco Refrigeration Inc | CC-01 | 1993 | Active |
| Lance Pounder Excavation Inc | CC-01 | 1987 | Active |