| Fast Water Heater Company | 3156893 | 130 | 100 | Intrastate |
| Total Landscape Corporation | 2296017 | 53 | 70 | IntrastateHazmat |
| Utility Technologies LLC | 1189451 | 49 | 32 | Interstate |
| D&d Transportation Logistics LLC | 3987752 | 45 | 55 | Interstate |
| Matheus Lumber CO INC | 1806326 | 42 | 18 | Interstate |
| Butler Transportation LLC | 1939713 | 34 | 33 | Interstate |
| Hos Bros Construction INC | 532758 | 33 | 95 | IntrastateHazmat |
| Cascade Ventures United LLC | 1937421 | 25 | 14 | Intrastate |
| Valley Cash And Carry INC | 2290148 | 25 | 20 | InterstateHazmat |
| Northwest Boring CO INC | 303649 | 22 | 7 | InterstateHazmat |
| Urban Horizon Group LLC | 6472049 | 22 | 50 | Interstate |
| Bering Pacific Construction INC | 2420668 | 20 | 10 | Intrastate |
| Precision Garage Door | 4313347 | 20 | 230 | Intrastate |
| Drywall Distributors INC | 304469 | 19 | 17 | Intrastate |
| Westhill INC | 2566340 | 19 | 13 | Intrastate |
| Quality Towing INC | 581936 | 18 | 11 | Interstate |
| Hti Polymer INC | 2015329 | 15 | 23 | Interstate |
| Universal Land Construction Company | 507225 | 14 | 7 | IntrastateHazmat |
| Team Nelson | 1893963 | 14 | 15 | Intrastate |
| The Cheese Man | 1052299 | 13 | 8 | Interstate |
| National Glass Industries INC | 499060 | 12 | 12 | Interstate |
| Oasis INC | 1853396 | 12 | 10 | Intrastate |
| Synthetic Turf Northwest | 2957503 | 12 | 15 | Intrastate |
| Vibrant Plants INC | 2299715 | 11 | 8 | Intrastate |
| Rain City Paving INC | 2589191 | 11 | 9 | Intrastate |
| Lowell Deyoung CO INC | 339711 | 10 | 7 | IntrastateHazmat |
| Shoreline Construction CO | 1878333 | 10 | 8 | Intrastate |
| Image Crane Service | 1911778 | 10 | 5 | Intrastate |
| Interbay Food Company LLC | 1851615 | 9 | 13 | Intrastate |
| Builders Supply | 3143667 | 8 | 6 | Intrastate |
| Garden Fresh Foods INC | 1222016 | 7 | 5 | Interstate |
| Walker Specialty Const INC | 1368484 | 7 | 8 | Intrastate |
| Woodinville Truss INC | 1812041 | 7 | 7 | Intrastate |
| Servicemaster Of Seattle | 2439133 | 7 | 17 | Interstate |
| Two Men And A Truck | 2947979 | 7 | 6 | Interstate |
| C T Sales INC | 335509 | 6 | 2 | Intrastate |
| Sit | 1549811 | 6 | 8 | InterstateHazmat |
| Nic Global | 1567302 | 6 | 11 | Intrastate |
| West Coast Construction Company Incorporated | 1824934 | 6 | 5 | Intrastate |
| Sajasa Construction INC | 1910635 | 6 | 2 | Intrastate |
| Bark King Blower Truck Service | 1964574 | 6 | 2 | Intrastate |
| Appian Construction INC | 1985332 | 6 | 6 | Intrastate |
| Skyline Tile & Marble INC | 2024463 | 6 | 4 | Interstate |
| Pacific Construction Supply INC | 2440486 | 6 | 4 | Intrastate |
| Construction Group International LLC | 2919725 | 6 | 2 | Intrastate |
| Ricci Quick & Easy Concrete INC | 3295688 | 6 | 7 | Intrastate |
| Reynolds Landscape Company | 6038987 | 6 | 10 | Intrastate |
| North Sound Interiors | 825871 | 5 | 7 | Intrastate |
| Early Bird Express LLC | 1216195 | 5 | 2 | Interstate |
| Precor Incorporated | 1855362 | 5 | 6 | Intrastate |
| Stanley Roofing Company INC | 1910779 | 5 | 3 | Intrastate |
| Construction Waste Management INC | 1932685 | 5 | 2 | Intrastate |
| Nwwi | 2309545 | 5 | 5 | Intrastate |
| Northwest Suites | 2319067 | 5 | 13 | Intrastate |
| One Enterprise INC USA | 2386513 | 5 | 3 | Intrastate |
| Pacifica Nurseries INC | 2569269 | 5 | 5 | Interstate |
| Catalyst Lumber LLC | 2632386 | 5 | 3 | Intrastate |
| Hale Landscaping INC | 2642780 | 5 | 1 | Intrastate |
| Keep Moving INC | 3110677 | 5 | 6 | Interstate |
| Krisco Aquatech Pools | 3249918 | 5 | 6 | Intrastate |
| Benchmark Nw | 3415572 | 5 | 5 | Intrastate |
| Wisechoicemovers LLC | 3961097 | 5 | 17 | Intrastate |
| Enrique Landscape INC | 4004562 | 5 | 5 | Intrastate |
| Level Five LLC | 4041601 | 5 | 14 | Intrastate |
| Msm Global LLC | 4137070 | 5 | 5 | Interstate |
| Evergreen West Wholesale Lumber CO INC | 460039 | 4 | 3 | Intrastate |
| Sound Deli Provisions LLC | 1444148 | 4 | 4 | Intrastate |
| Fed Excavation INC | 1898126 | 4 | 3 | Intrastate |
| Boyer Electric Company Incorporated | 1904780 | 4 | 2 | Intrastate |
| A To Z Stump & Tree INC | 1929362 | 4 | 4 | Intrastate |
| Enviro Clean Leasing LLC | 2071457 | 4 | 2 | Intrastate |
| Four Seasons Landscape Construction | 2309358 | 4 | 3 | Intrastate |
| Ds Productions | 2309487 | 4 | 4 | Intrastate |
| Snyder Green | 3187071 | 4 | 4 | IntrastateHazmat |
| Kirkland Landscapes LLC | 3706424 | 4 | 5 | Intrastate |
| Woodinville Water District | 3960994 | 4 | 14 | Intrastate |
| Iron Mountain Flagstone | 201092 | 3 | 2 | Intrastate |
| Evergreen Environmental Servic | 927695 | 3 | 2 | Intrastate |
| The Hepworth Company | 1883949 | 3 | 3 | Intrastate |
| Grass Master Hydroseeding | 1902466 | 3 | 2 | Intrastate |
| J&l Enterprises Wa LLC | 1905407 | 3 | 2 | Intrastate |
| Pieroni Industrial Equipment INC | 2114211 | 3 | 3 | InterstateHazmat |
| Wise Choice Movers LLC | 2272706 | 3 | 3 | Intrastate |
| Superior Nw Tree And Shrub Care INC | 2315926 | 3 | 2 | Intrastate |
| Bdr Towing LLC | 2315935 | 3 | 1 | IntrastateHazmat |
| Brier Creek Gardens | 2316471 | 3 | 5 | Intrastate |
| Rj Masonry INC | 2317277 | 3 | 3 | Intrastate |
| Ellsworth Builders Incorporated | 2321953 | 3 | 3 | Intrastate |
| Lr Drywall Systems INC | 2325665 | 3 | 6 | Intrastate |
| Central Cascade Concrete INC | 2363633 | 3 | 1 | Intrastate |
| Holliday Masonry | 2470854 | 3 | 4 | Intrastate |
| Cnc Diversified | 2564229 | 3 | 8 | Interstate |
| Fresh N Clean Septic | 3517058 | 3 | 3 | Intrastate |
| Northside Diesel Works LLC | 4049338 | 3 | 2 | Intrastate |
| Eurocon Inc. | 7980611 | 3 | 4 | Intrastate |
| Avid Arcades | 8089309 | 3 | 2 | Interstate |
| Advanced Fire Protection INC | 507354 | 2 | 2 | IntrastateHazmat |
| Jjw Construction INC | 1157186 | 2 | 1 | Intrastate |
| Great West Moving And Storage INC | 1174912 | 2 | 2 | Intrastate |
| Wetlands And Woodlands Wholesale Nursery INC | 1407730 | 2 | 4 | Interstate |