| Jordan Mechanical Group LLC | CC-01 | 2018 | Active |
| Jose's Lawn Care Services LLC | CC-01 | 2021 | Active |
| Jr's Concrete LLC | CC-01 | 2018 | Active |
| Jr's Landscaping & Clning LLC | CC-01 | 2026 | Active |
| Jr's Mill Work LLC | CC-01 | 2020 | Renew by Dec 16, 2026 |
| JTR Enterprises Inc | CC-01 | 2016 | Active |
| JVL Rmdlng & General Const LLC | CC-01 | 2020 | Active |
| K West Concrete & Const LLC | CC-01 | 2023 | Active |
| Kd's Remodeling LLC | CC-01 | 2022 | Active |
| Kenmore Team Const Srvcs LLC | CC-01 | 2018 | Active |
| Kennedy Konstruction LLC | CC-01 | 2024 | Active |
| KG Masonry LLC | CC-01 | 2020 | Active |
| King Curbing And Landscape | CC-01 | 2016 | Active |
| Kingdom Property Imprvmnts LLC | CC-01 | 2022 | Active |
| Kitchen & Bath Restylers | CC-01 | 2010 | Active |
| Kitchen Plus Bath LLC | CC-01 | 2022 | Active |
| Kobuild | CC-01 | 2025 | Active |
| Koehler Construction II Inc | CC-01 | 2003 | Active |
| KP Planning & Design | CC-01 | 2025 | Active |
| Kraken Pool Serv & Inst LLC | CC-01 | 2025 | Active |
| Kristyn Home Interiors LLC | CC-01 | 2026 | Active |
| KRP Properties LLC | CC-01 | 2026 | Active |
| L & Co Collective LLC | CC-01 | 2025 | Active |
| L & L Painting Inc | CC-01 | 1998 | Active |
| L B Painters | CC-01 | 2026 | Active |
| L&R Landscaping | CC-01 | 2017 | Active |
| Lampson International LLC | CC-01 | 2000 | Active |
| Land FX Inc | CC-01 | 1998 | Active |
| Landscaping Solutions LLC | CC-01 | 2022 | Active |
| Lapierre Enterprises Inc | CC-01 | 1991 | Active |
| Legacy Concrete 22 LLC | CC-01 | 2023 | Active |
| Legacy Excavation LLC | CC-01 | 2014 | Active |
| Legacy Homes Wa LLC | CC-01 | 2026 | Active |
| Leons Flooring Installers LLC | CC-01 | 2021 | Active |
| Level 3 Construction | CC-01 | 2026 | Active |
| Level Up Construction LLC | CC-01 | 2022 | Active |
| Lexar Homes Of Tri Cities | CC-01 | 2022 | Active |
| Limitless Tile & Interiors LLC | CC-01 | 2026 | Active |
| Lindsay Water Pool & Spa | CC-01 | 2011 | Active |
| Living Stones Construction LLC | CC-01 | 2026 | Active |
| Local Hands Fabrication LLC | CC-01 | 2025 | Active |
| Loyalty Stucco & Stone LLC | CC-01 | 2022 | Active |
| LRR Construction LLC | CC-01 | 2026 | Active |
| Lua's Construction LLC | CC-01 | 2026 | Active |
| Luminary Roofing & Cont PLLC | CC-01 | 2025 | Active |
| M & G Flrng Installation LLC | CC-01 | 2013 | Active |
| M & L Precision Painting LLC | CC-01 | 2024 | Active |
| Maatek LLC | CC-01 | 2026 | Active |
| Macroberts Handyman LLC | CC-01 | 2019 | Active |
| Maestro Const Services LLC | CC-01 | 2021 | Active |
| Magnitude Construction LLC | CC-01 | 2024 | Active |
| Mahaffey Enterprises Inc | CC-01 | 1983 | Active |
| Maintenance Plus LLC | CC-01 | 2026 | Active |
| Maintenance Plus LLC | CC-01 | 2011 | Active |
| Mar Home Builders Inc | CC-01 | 2008 | Active |
| Marcos Landscaping LLC | CC-01 | 2025 | Active |
| Mas Construction LLC | CC-01 | 2018 | Renew by Nov 1, 2026 |
| Matt's Property Maint LLC | CC-01 | 2025 | Active |
| Matts Garage Doors LLC | CC-01 | 2025 | Active |
| MC Construction Tri-Cities LLC | CC-01 | 2015 | Active |
| McClintock's Construction LLC | CC-01 | 2017 | Active |
| MD Rock Construction LLC | CC-01 | 2023 | Active |
| Medina Brothers Const LLC | CC-01 | 2007 | Active |
| Medina Structures LLC | CC-01 | 2025 | Active |
| Mendoza's Construction | CC-01 | 2021 | Active |
| Mid Columbia Intgrty RFNG LLC | CC-01 | 2019 | Active |
| Mimis Homes General Const LLC | CC-01 | 2026 | Active |
| Mirage Pool N' Spa LLC | CC-01 | 2005 | Active |
| MJ Flooring LLC | CC-01 | 2019 | Active |
| MJ Gutters & Paint & Const LLC | CC-01 | 2023 | Active |
| MLPC Construction & Lndscpg LL | CC-01 | 2025 | Active |
| Moreno Family Gen Const LLC | CC-01 | 2025 | Active |
| Mount Zion Construction LLC | CC-01 | 2010 | Active |
| Mr Handypro LLC | CC-01 | 2026 | Active |
| Mr. Green General Const LLC | CC-01 | 2026 | Active |
| Mr. Handyman Of Kenn-Walla | CC-01 | 2026 | Active |
| Mufasa Const & Remodeling LLC | CC-01 | 2018 | Active |
| Mullins Enterprises LLC | CC-01 | 2016 | Active |
| Murley's Floorcovering LLC | CC-01 | 2005 | Active |
| Mustang Construction LLC | CC-01 | 2022 | Renew by Nov 19, 2026 |
| Mustang Signs LLC | CC-01 | 2019 | Active |
| Muzzy Construction LLC | CC-01 | 2017 | Active |
| N A & S General Construction | CC-01 | 2017 | Active |
| N&B Flooring & Renovations Co | CC-01 | 2018 | Active |
| Nailed It Construction TC LLC | CC-01 | 2024 | Active |
| National Building Const LLC | CC-01 | 2025 | Active |
| Natural Stone Fabricating LLC | CC-01 | 2015 | Active |
| Nebula Construction LLC | CC-01 | 2022 | Active |
| Need It Now Handyman Servs LLC | CC-01 | 2025 | Active |
| Netc Construction LLC | CC-01 | 2018 | Active |
| New Environment Corporation | CC-01 | 2001 | Active |
| New Era PNTG & Reglazing LLC | CC-01 | 2022 | Active |
| Newlook Landscaping LLC | CC-01 | 2018 | Active |
| Next-Gen Pro-Builders LLC | CC-01 | 2017 | Active |
| NG Eagle Concrete LLC | CC-01 | 2019 | Active |
| Nik's Flooring LLC | CC-01 | 2015 | Active |
| Nino & Co LLC | CC-01 | 2026 | Active |
| Noble Works Contracting | CC-01 | 2026 | Active |
| North Pacific Drywall LLC | CC-01 | 2019 | Active |
| North Peak Const & Dev LLC | CC-01 | 2026 | Active |