| High Tech Pacific Builders | CC-01 | 2011 | Active |
| HNW Builders LLC | CC-01 | 2014 | Active |
| Holmberg Company | CC-01 | 1994 | Active |
| Home Customization LLC | CC-01 | 2020 | Active |
| Home Services Plus LLC | CC-01 | 2022 | Active |
| Home Spirit Construction LLC | CC-01 | 2026 | Active |
| Homecore Construction LLC | CC-01 | 2025 | Active |
| Honor Home Construction LLC | CC-01 | 2026 | Active |
| Horizon Builders LLC | CC-01 | 2020 | Active |
| House Medics | CC-01 | 2025 | Active |
| HST Construction Inc | CC-01 | 2008 | Active |
| Huntington Homes LLC | CC-01 | 2014 | Active |
| Hyde Construction Inc | CC-01 | 2018 | Active |
| Ib Cleaning Solutions LLC | CC-01 | 2026 | Active |
| Ichijo USA Co LTD | CC-01 | 2010 | Renew by Dec 29, 2026 |
| Iexpo Group LLC | CC-01 | 2021 | Active |
| Ihif Commercial LLC | CC-01 | 2025 | Active |
| Imperosx LLC | CC-01 | 2023 | Active |
| Indec Company | CC-01 | 2019 | Active |
| Industrial Surface Rstrtns LLC | CC-01 | 2023 | Active |
| Infinite Interiors LLC | CC-01 | 2024 | Active |
| Infinite Remodel LLC | CC-01 | 2008 | Active |
| Innate Aec LLC | CC-01 | 2024 | Active |
| Innovate BLDG Solutions LLC | CC-01 | 2024 | Active |
| Innovative Builders Group | CC-01 | 2015 | Active |
| Irc LLC Ivans Remodeling Co | CC-01 | 2022 | Active |
| J & A Remodeling LLC | CC-01 | 2011 | Active |
| J & L Contracting LLC | CC-01 | 2020 | Active |
| J T Huff Construction Inc | CC-01 | 1999 | Active |
| J&B General Contractor LLC | CC-01 | 2020 | Active |
| Jackling Painting & Design LLC | CC-01 | 2001 | Active |
| Jandh Cleaning Services LLC | CC-01 | 2024 | Renew by Nov 8, 2026 |
| JB Construct LLC | CC-01 | 2023 | Active |
| JC Construction Service LLC | CC-01 | 2023 | Active |
| JC Enterprises Construction | CC-01 | 2013 | Active |
| JCDL Inc | CC-01 | 2024 | Active |
| Jeff Hallstrom Construction In | CC-01 | 2004 | Active |
| Jenny Home LLC | CC-01 | 2026 | Active |
| Jesse Rochlin Contracting LLC | CC-01 | 2019 | Active |
| Jia Yuan 7 LLC | CC-01 | 2024 | Active |
| Jiayi Construction | CC-01 | 2025 | Active |
| Jin Jin Construction | CC-01 | 2017 | Active |
| Jindian Construction LLC | CC-01 | 2023 | Active |
| Jke Ventures LLC | CC-01 | 2021 | Active |
| JMC General Contractor LLC | CC-01 | 2021 | Active |
| JMS Homes Inc | CC-01 | 2002 | Active |
| John F Buchan Homes | CC-01 | 2010 | Active |
| Jones Boys Maintenance Co Inc | CC-01 | 2000 | Active |
| Joseph Landscaping LLC | CC-01 | 2024 | Active |
| JPV Landscaping LLC | CC-01 | 2021 | Active |
| Julius Remodeling Group P C | CC-01 | 2022 | Active |
| Junity Construction LLC | CC-01 | 2024 | Active |
| Just N Time Pro Services LLC | CC-01 | 2026 | Active |
| Kaizen Residential SVCS LLC | CC-01 | 2020 | Renew by Nov 8, 2026 |
| KB Home | CC-01 | 2018 | Active |
| KD Dev & Const LLC | CC-01 | 2013 | Active |
| Kensington Builders LLC | CC-01 | 2016 | Active |
| Kensington Construction LLC | CC-01 | 2018 | Active |
| Kev Services LLC | CC-01 | 2026 | Active |
| Kitchen And More | CC-01 | 2020 | Active |
| Kobuk Construction LLC | CC-01 | 2026 | Active |
| Koniv | CC-01 | 2025 | Active |
| Kratos Concrete LLC | CC-01 | 2023 | Active |
| Krutin LLC | CC-01 | 2019 | Active |
| Laisheng Decoration | CC-01 | 2025 | Active |
| Lake Hills BC Lndscpg&Cont LLP | CC-01 | 2024 | Active |
| Lake Washington Partners LLC | CC-01 | 2025 | Active |
| Lakeville Homes | CC-01 | 2022 | Active |
| Latibule LLC | CC-01 | 2024 | Active |
| Lazar General Construction LLC | CC-01 | 2018 | Active |
| LB New Life LLC | CC-01 | 2024 | Active |
| LBC Construction | CC-01 | 2017 | Active |
| Lead One LLC | CC-01 | 2026 | Active |
| Leicht Seattle | CC-01 | 2021 | Active |
| Letdel Construction Group LLC | CC-01 | 2021 | Active |
| Lets Landscape Services LLC | CC-01 | 2024 | Active |
| Level Up Const & Rmdlg Co | CC-01 | 2022 | Active |
| Leveloff LLC | CC-01 | 2022 | Active |
| Levelstone USA LLC | CC-01 | 2026 | Active |
| Lewdun Construction LLC | CC-01 | 2024 | Active |
| Lexus Contracting Group LLC | CC-01 | 2023 | Active |
| LG Design Build LLC | CC-01 | 2023 | Active |
| Limelite Development LLC | CC-01 | 2022 | Active |
| LJ Contractors Group LLC | CC-01 | 2026 | Active |
| Local Wtrprfng & Msnry LLC | CC-01 | 2026 | Active |
| Long & Yang LLC | CC-01 | 2024 | Active |
| Lotus Landscape Design LLC | CC-01 | 2014 | Active |
| Lucky Choice Construction LLC | CC-01 | 2025 | Active |
| M & S Zorgol LLC | CC-01 | 2016 | Active |
| M A Tile PNW LLC | CC-01 | 2025 | Active |
| M L D Corporation | CC-01 | 1997 | Active |
| M-Brooke Properties LLC | CC-01 | 2016 | Active |
| Madrona Custom Homes LLC | CC-01 | 2009 | Active |
| Magna Services | CC-01 | 2018 | Active |
| Maintenance Man Unlimited | CC-01 | 2024 | Active |
| Major Appliance Repair | CC-01 | 2022 | Active |
| Malcho Handyman LLC | CC-01 | 2019 | Active |
| Marivela Design LLC | CC-01 | 2024 | Active |
| Market Renovation LLC | CC-01 | 2026 | Active |
| Marval Homes & Cnstn LLC | CC-01 | 2024 | Renew by Nov 27, 2026 |