| Sonic Net LLC | 2713892 | 426 | 499 | Intrastate |
| Sonoma County Fleet Operations Division | 2626599 | 228 | 171 | Intrastate |
| West County Transportation Agency | 2652745 | 198 | 132 | Intrastate |
| Atech Logistics INC | 1047145 | 178 | 229 | InterstateHazmat |
| Blue Star Gas | 316141 | 145 | 77 | InterstateHazmat |
| Santa Rosa Transit | 2652216 | 106 | 93 | Intrastate |
| Ss Skikos INC | 2503797 | 99 | 72 | InterstateHazmat |
| Novato Disposal Service | 2849675 | 84 | 119 | Intrastate |
| 94372854 | 2805086 | 81 | 32 | IntrastateHazmat |
| La Tortilla Factory INC | 2604627 | 60 | 62 | Intrastate |
| Kdf Forestry INC | 3818847 | 54 | 77 | Intrastate |
| Devincenzi Concrete Construction | 2614315 | 52 | 40 | Intrastate |
| Parmeter General Engineers & Services INC | 3104083 | 50 | 29 | Intrastate |
| Yarbrough Bros Towing INC | 2662973 | 45 | 28 | IntrastateHazmat |
| Rich Doss INC | 168261 | 38 | 34 | Interstate |
| F3 Transport | 1384069 | 38 | 31 | Interstate |
| Eagle Distributing CO | 2647459 | 32 | 30 | Intrastate |
| Butch Cameron Trucking INC | 944748 | 31 | 44 | Interstate |
| Ghilotti Construction Company | 2804168 | 31 | 39 | Intrastate |
| Valdivia Trucking LLC | 2758547 | 30 | 30 | Intrastate |
| All State Tank Lines | 2352455 | 29 | 21 | InterstateHazmat |
| Atech Warehousing & Distribution INC | 572472 | 28 | 28 | InterstateHazmat |
| Redwood Coast Petroleum | 485731 | 24 | 15 | IntrastateHazmat |
| M&e Concrete, Inc. | 6405554 | 24 | 10 | Intrastate |
| Kadon Trucking INC | 1327383 | 23 | 27 | Interstate |
| R&s Trucking | 3315388 | 23 | 25 | Intrastate |
| Groome Transportation | 287292 | 22 | 39 | Interstate |
| Les Petersen Drilling And Pump INC | 2650880 | 22 | 18 | Intrastate |
| Bo Dean CO INC | 2703149 | 22 | 22 | Intrastate |
| Able Maintenance INC | 2728867 | 20 | 20 | Intrastate |
| Sigal Utility Services INC | 3697135 | 20 | 25 | Intrastate |
| Sonoma Sterling Limousines INC | 2683309 | 19 | 20 | Intrastate |
| Under Bridge Platforms | 1907215 | 18 | 2 | Interstate |
| North Bay Pressure Washing INC | 1941296 | 18 | 18 | Interstate |
| Kleen Solution Environmental | 2851226 | 18 | 10 | IntrastateHazmat |
| Foege Schumann Global Disaster Solutions LLC | 3803669 | 18 | 40 | Interstate |
| Mitchell Landscapes Inc. | 9447566 | 18 | 9 | Intrastate |
| Poncia Fertilizer INC | 2172755 | 17 | 16 | Interstate |
| Warren Construction & Roofing INC | 2713523 | 17 | 31 | Intrastate |
| Khi | 3108096 | 17 | 12 | Intrastate |
| Pacific Coast Drilling Company INC | 2655047 | 16 | 16 | Intrastate |
| Rcx INC | 2698566 | 15 | 9 | Intrastate |
| Pumpman Norcal | 3084211 | 15 | 13 | Intrastate |
| Interstate Battery System Of The North Bay | 358493 | 14 | 5 | Intrastate |
| Wheeler Zamaroni Landscape Supply | 1471766 | 14 | 10 | Interstate |
| Clear Heart Drilling INC | 2600314 | 14 | 12 | Intrastate |
| Creams Towing | 3796102 | 14 | 9 | IntrastateHazmat |
| Ahlborn Fence And Steel | 2601821 | 13 | 13 | Intrastate |
| Atlas Tree Surgery | 2670464 | 13 | 29 | Intrastate |
| Nunley Engineering INC | 2672651 | 13 | 13 | Intrastate |
| Ahlborn Fence And Steel INC | 2680679 | 13 | 13 | Intrastate |
| Royal Petroleum Co. | 2729166 | 13 | 14 | Intrastate |
| Sonoma Build Group INC | 4119634 | 13 | 12 | Intrastate |
| Flashco Manufacturing INC | 1271744 | 12 | 12 | Interstate |
| Superior Supplies INC | 2651729 | 12 | 14 | Intrastate |
| Pjm Landscape | 2698685 | 12 | 13 | Intrastate |
| Efficiency Delivery | 2978221 | 12 | 12 | Intrastate |
| Mead Clark Lumber CO INC | 2621507 | 11 | 11 | Intrastate |
| Rincon Valley Union School District | 2657117 | 11 | 5 | Interstate |
| 1954 | 2736439 | 11 | 7 | Intrastate |
| Northbay Roofing & Gutters INC | 3357635 | 11 | 7 | Intrastate |
| Hansen Transport INC | 2482982 | 10 | 6 | Intrastate |
| Northwest General Engineering LLC | 2650253 | 10 | 10 | IntrastateHazmat |
| Tbc Safety | 2656608 | 10 | 7 | Intrastate |
| Extreme Towing | 3084571 | 10 | 14 | IntrastateHazmat |
| Valley Comfort Heating And Air INC | 3908252 | 10 | 8 | Intrastate |
| Contreras Landscaping LLC | 4192176 | 10 | 3 | Intrastate |
| Var-City Contracting INC | 7109164 | 10 | 14 | Intrastate |
| R And G Trucking INC | 2621077 | 9 | 9 | Intrastate |
| Deluxe Shotcrete & Concrete Construction | 2697507 | 9 | 6 | Intrastate |
| Canteen Service Of Northern California | 3494219 | 9 | 10 | Intrastate |
| Nst Construction Company | 4408793 | 9 | 13 | Interstate |
| Vema Tree Service INC | 7766590 | 9 | 6 | Intrastate |
| Ferina Trucking INC | 2329661 | 8 | 4 | Interstate |
| Becoming Independent INC | 2626696 | 8 | 6 | Intrastate |
| Aaron Paving INC | 2646016 | 8 | 10 | Intrastate |
| The Press Democrat | 2653907 | 8 | 7 | Intrastate |
| Global Material Recovery Services | 2659455 | 8 | 1 | Intrastate |
| Sonoma Water | 2810997 | 8 | 28 | Intrastate |
| Green Vine Landscaping | 2878627 | 8 | 6 | Intrastate |
| S & S Trucking | 2879927 | 8 | 8 | Intrastate |
| D & L Express INC | 2901998 | 8 | 13 | Intrastate |
| Hr1 Trucking LLC | 3103365 | 8 | 8 | Intrastate |
| Power Pole Service INC | 3105105 | 8 | 8 | Intrastate |
| Rombauer Vineyards INC | 3244690 | 8 | 4 | Intrastate |
| Elite Concrete Construction INC | 3268236 | 8 | 8 | Intrastate |
| Gcci INC | 3957680 | 8 | 13 | Intrastate |
| Santa Rosa Fire Equipment INC | 4099302 | 8 | 0 | Intrastate |
| Heritage Quality Roofing INC | 9266271 | 8 | 2 | Intrastate |
| H & M Landscape Material INC | 591231 | 7 | 3 | Intrastate |
| Sonoma Graphic Products Corp | 670037 | 7 | 7 | Intrastate |
| Star Tank Lines | 927960 | 7 | 5 | InterstateHazmat |
| Thermalsun Glass Products INC | 2613710 | 7 | 7 | Intrastate |
| Wrb INC | 2621461 | 7 | 5 | Intrastate |
| Kenwood Fence Company INC | 2645817 | 7 | 15 | Intrastate |
| C.h.d.c. C.e.t. | 2653508 | 7 | 7 | Intrastate |
| Bartley Pump INC | 2674972 | 7 | 2 | Intrastate |
| Riptide Construction INC | 2689132 | 7 | 6 | Intrastate |
| Wine Road Tours | 2690202 | 7 | 6 | Intrastate |
| Western Construction | 2774067 | 7 | 6 | Intrastate |