| Lake County Dept Of Public Works | 2673607 | 34 | 58 | Intrastate |
| Lakeport Unified School District | 2653058 | 30 | 11 | Intrastate |
| People Services INC | 2672523 | 17 | 15 | Intrastate |
| Westgate Petroleum CO INC | 2848379 | 10 | 11 | IntrastateHazmat |
| Dunken Pumps INC | 2804553 | 9 | 1 | Intrastate |
| Clearlake Redi Mix INC | 2673896 | 8 | 6 | Intrastate |
| Bella Vista Farming Company LLC | 2664967 | 7 | 5 | Intrastate |
| North Counties Develoment | 1219570 | 6 | 6 | Interstate |
| Lakeport Disposal INC | 2733726 | 6 | 6 | Intrastate |
| Lake Fleet Repair | 3409346 | 6 | 6 | IntrastateHazmat |
| A-T Wanzer Grading And Excavating INC | 2646614 | 5 | 2 | Intrastate |
| Mann Ranch Incorporated | 3339454 | 5 | 2 | Intrastate |
| Crystal O'neill Electric INC | 3873875 | 5 | 2 | Intrastate |
| Essential Vegetation Management Services LLC | 4074461 | 5 | 5 | Intrastate |
| Environmental Resource Services INC | 2674894 | 3 | 3 | Intrastate |
| DBA Travis Thorn Trucking | 2961466 | 3 | 1 | Intrastate |
| Raya's Towing LLC | 3777765 | 3 | 2 | IntrastateHazmat |
| Bent Fir Custom Cabinets LLC | 3952137 | 3 | 2 | Intrastate |
| Keithly Transportation | 2384716 | 2 | 1 | Interstate |
| Lake County Electric Supply | 2650266 | 2 | 2 | Intrastate |
| Ucc Rental & Rv | 2658209 | 2 | 3 | IntrastateHazmat |
| The Ice Water CO INC | 2761100 | 2 | 2 | Intrastate |
| City Of Lakeport | 2807182 | 2 | 4 | Intrastate |
| George Lovrin Trucking LLC | 2886970 | 2 | 1 | Intrastate |
| Fossas Backhoe Service INC | 3042293 | 2 | 2 | Intrastate |
| Lake County Pump LLC | 3043179 | 2 | 1 | Intrastate |
| Dock Factory Lake Limos | 3060747 | 2 | 8 | Intrastate |
| Jones Towing | 3227149 | 2 | 1 | Intrastate |
| D & D Construction | 3246245 | 2 | 2 | Intrastate |
| North Star Towing & Recovery INC | 3360624 | 2 | 1 | IntrastateHazmat |
| C&s Civil LLC | 4042085 | 2 | 2 | Intrastate |
| Konocti Concrete Pumping LLC | 4159565 | 2 | 2 | Intrastate |
| Rick Reynolds Trucking | 1699330 | 1 | 1 | Intrastate |
| Superior Moving And Storage | 1712164 | 1 | 1 | Intrastate |
| Peters Heavy Haul | 2452864 | 1 | 3 | Interstate |
| Clearlake Marine Construction INC | 2613878 | 1 | 2 | Intrastate |
| Yanez Roofing | 2647694 | 1 | 1 | Intrastate |
| Dillsaver Construction | 2650703 | 1 | 1 | Intrastate |
| Sheldon Signs And Lighting | 2652306 | 1 | 1 | Intrastate |
| C M E | 2659727 | 1 | 1 | Intrastate |
| Konocti Vinyard Management INC | 2661753 | 1 | 1 | Intrastate |
| Stark Farms | 2663614 | 1 | 1 | Intrastate |
| Thomas L Glakeler | 2667209 | 1 | 1 | Intrastate |
| Lucerne Roofing & Supply INC | 2667449 | 1 | 1 | Intrastate |
| Green Ranch INC | 2667696 | 1 | 1 | Intrastate |
| Jason A Blake | 2670970 | 1 | 1 | Intrastate |
| Quality Door Trim And Cabinets | 2672299 | 1 | 2 | Intrastate |
| T C B Welding | 2686412 | 1 | 1 | Intrastate |
| D & P Pools | 2692367 | 1 | 1 | Intrastate |
| I E Wood Products | 2696402 | 1 | 1 | Intrastate |
| S & K Automotive | 2707948 | 1 | 1 | IntrastateHazmat |
| Interior Exterior Wood Products | 2717810 | 1 | 1 | Intrastate |
| Ttf Investments LLC | 2720884 | 1 | 1 | Intrastate |
| Carter Construction | 2731578 | 1 | 1 | Intrastate |
| T & D Diesel Repair | 2732241 | 1 | 1 | IntrastateHazmat |
| Ruiz Trucking | 2733369 | 1 | 1 | Intrastate |
| Garys Cabinets & Prehung Doors | 2735614 | 1 | 2 | Intrastate |
| Saul Lefort | 2756597 | 1 | 1 | Intrastate |
| Christopher A Robinson | 2774282 | 1 | 1 | Intrastate |
| West Coast Fiberglass Pools INC | 2782007 | 1 | 1 | Intrastate |
| Rad Construction INC | 2807836 | 1 | 1 | Intrastate |
| Westlake Environmental Contractors | 2811197 | 1 | 1 | IntrastateHazmat |
| City Of Light Recording & Sound | 2848219 | 1 | 1 | Intrastate |
| Davis Fabrication & Ornamental Designs | 2886040 | 1 | 1 | Intrastate |
| Lancaster Diesel | 2926567 | 1 | 1 | Intrastate |
| Forrest Kuecker Trucking | 2941962 | 1 | 1 | Intrastate |
| Robert I Kelley | 3000386 | 1 | 1 | Intrastate |
| Steve Pete Estrada | 3029654 | 1 | 1 | Intrastate |
| First Pick Builders INC | 3068723 | 1 | 4 | IntrastateHazmat |
| C & M Sanitary | 3145623 | 1 | 1 | Intrastate |
| Mtac Logistics INC | 3151217 | 1 | 1 | Intrastate |
| Kenneth R Kelsen Blind Cleaning | 3181685 | 1 | 1 | Intrastate |
| Kimsey | 3182837 | 1 | 1 | Intrastate |
| Meals On Wheels Thrift Store | 3243873 | 1 | 2 | Intrastate |
| Lake Event Design And Party Rental | 3260513 | 1 | 3 | Intrastate |
| Shields Construction | 3322933 | 1 | 2 | Intrastate |
| Flying Hammer Fabrication | 3382100 | 1 | 3 | Intrastate |
| Ore Construction | 3579198 | 1 | 1 | Intrastate |
| Jj's Arroyo Trucking | 3698359 | 1 | 1 | Intrastate |
| Sticks & Stones Excavation LLC | 3739285 | 1 | 1 | Intrastate |
| Baeza Trucking LLC | 3906453 | 1 | 1 | Intrastate |
| C&b Freight | 4029321 | 1 | 4 | Intrastate |
| Blakes Backhoe Service | 4362336 | 1 | 1 | Intrastate |
| North Star Towing & Recovery INC | 4384580 | 1 | 1 | Intrastate |
| Randall Knibb Land Management | 4431125 | 1 | 2 | Intrastate |
| Tswv Transportation LLC | 4526915 | 1 | 1 | Interstate |
| Jeremy's Bees | 4556705 | 1 | 2 | Intrastate |