| COLUMBIA ELECTRIC INC | 1909124 | WASHOUGAL | 4 |
| COLUMBIA ENERGY AND ENVIRONMENTAL SERVICES INC | 2168325 | RICHLAND | 5 |
| COLUMBIA EXPRESS LLC | 4498869 | WAPATO | 1 |
| COLUMBIA FREIGHT LLC | 2891757 | BATTLE GROUND | 10 |
| COLUMBIA FRUIT FARMS LLC | 916676 | WOODLAND | 16 |
| COLUMBIA GORGE EXCAVATION LLC | 2822400 | SKAMANIA | 2 |
| COLUMBIA GROUNDWORK INC | 3001614 | CASTLE ROCK | 1 |
| COLUMBIA HARDWARE INC | 294195 | STEVENSON | 2 |
| COLUMBIA INDUSTRIAL COATINGS LLC | 4038988 | RICHLAND | 12 |
| COLUMBIA LAND MANAGEMENT | 3581147 | DEER PARK | 1 |
| COLUMBIA LAND SERVICES INC | 1208989 | RAVENSDALE | 1 |
| COLUMBIA LANDSCAPE LLC | 4303882 | LAKEWOOD | 1 |
| COLUMBIA MACHINE INC | 78258 | VANCOUVER | 2 |
| COLUMBIA MARINE AND RAIL LLC | 4150852 | WASHOUGAL | 1 |
| COLUMBIA MECHANICAL INC | 3016444 | WOODLAND | 1 |
| COLUMBIA METAL WORKS FAB INC | 3298222 | RIDGEFIELD | 1 |
| COLUMBIA MODERN LIVING LLC | 3298738 | SEATTLE | 1 |
| COLUMBIA PACIFIC AVIATION TRANSPORT DIVISION LLC | 1723453 | MOSES LAKE | 1 |
| COLUMBIA PACIFIC CONSTRUCTION LLC | 3618783 | WOODLAND | 5 |
| COLUMBIA PACIFIC RECOVERY CORP | 1584339 | BRUSH PRAIRIE | 1 |
| COLUMBIA PALLET LLC | 2847443 | PASCO | 2 |
| COLUMBIA POLLINATION INC | 2366156 | EPHRATA | 1 |
| COLUMBIA PRECAST PRODUCTS LLC | 2455692 | WOODLAND | 3 |
| COLUMBIA PULP I LLC | 3243066 | DAYTON | 1 |
| COLUMBIA PUMP INC | 3733377 | PASCO | 1 |
| COLUMBIA PUMPING & CONSTRUCTION INC | 598047 | PASCO | 6 |
| COLUMBIA REA | 532291 | WALLA WALLA | 16 |
| COLUMBIA RIDGE CATTLE CO | 1934446 | QUINCY | 2 |
| COLUMBIA RIDGE HOMES LLC | 2813302 | YAKIMA | 3 |
| COLUMBIA RIVER CONCRETE LLC | 1926381 | PASCO | 9 |
| COLUMBIA RIVER DISPATCH INC | 2227385 | VANCOUVER | 0 |
| COLUMBIA RIVER DISPOSAL INC | 2568675 | CARSON | 5 |
| COLUMBIA RIVER DRYWALL & SUPPLY INC | 2314954 | CASHMERE | 1 |
| COLUMBIA RIVER EXCAVATING INC | 1951587 | EAST WENATHCEE | 5 |
| COLUMBIA RIVER EXCAVATING LLC | 3116828 | BATTLE GROUND | 2 |
| COLUMBIA RIVER INVESTORS LLC | 2020820 | QUINCY | 1 |
| COLUMBIA RIVER MACHINERY LLC | 2142270 | WEST RICHLAND | 3 |
| COLUMBIA RIVER PLUMBING & MECHANICAL LLC | 3051328 | KENNEWICK | 0 |
| COLUMBIA RIVER PUMPING | 1720201 | BATTLE GROUND | 5 |
| COLUMBIA RIVER RANCH LLC | 1944463 | MALAGA | 1 |
| COLUMBIA RIVER SERVICES LLC | 2155826 | PROSSER | 1 |
| COLUMBIA RIVER SOURDOUGH BAKERY, LLC | 9267963 | VANCOUVER | 4 |
| COLUMBIA RIVER STEEL AND CONSTRUCTION | 1461042 | GRANDVIEW | 6 |
| COLUMBIA RIVER STEEL SUPPLY | 2150944 | EAST WENATCHEE | 2 |
| COLUMBIA RIVER TRUCKING LLC | 4535988 | SEATTLE | 1 |
| COLUMBIA RIVER VINEYARD INVESTORS LLC | 2202212 | SPOKANE | 1 |
| COLUMBIA ROOFING INC | 3192070 | PASCO | 1 |
| COLUMBIA SANITATION | 3870700 | ELLENSBURG | 1 |
| COLUMBIA SHEET METAL INC OF WA | 2411368 | TACOMA | 1 |
| COLUMBIA SHUTTLES LLC | 2631833 | QUINCY | 8 |
| COLUMBIA SIGN AND LIGHTING INC | 2016696 | COLBERT | 2 |
| COLUMBIA STEEL CONSTRUCTION INC | 2321507 | AMBOY | 2 |
| COLUMBIA STORAGE INC | 399824 | WASHOUGAL | 2 |
| COLUMBIA STRAW SUPPLY LLC | 3872909 | DAYTON | 1 |
| COLUMBIA SWEEPING SERVICE INC | 3193698 | PASCO | 15 |
| COLUMBIA TRANSPORT | 2218544 | ROYAL CITY | 0 |
| COLUMBIA TREE PROFESSIONALS LLC | 3473508 | KELSO | 1 |
| COLUMBIA VALLEY COMUNITY HEALTH | 3342677 | WENATCHEE | 1 |
| COLUMBIA VALLEY EXCAVATION LLC | 1270482 | ENTIAT | 1 |
| COLUMBIA VALLEY FRUIT LLC | 1900491 | UNION GAP | 7 |
| COLUMBIA VALLEY TREE CARE LLC | 3338134 | PALISADES | 0 |
| COLUMBIA VIEW FARMS LLC | 1993233 | MESA | 4 |
| COLUMBIA VIEW INVESTMENTS LLC | 1662704 | GRAYLAND | 1 |
| COLUMBIA WATER TECHNOLOGY | 2275383 | VANCOUVER | 1 |
| COLUMBIA WEST CARGO LLC | 5621386 | WALLA WALLA | 1 |
| COLUMBIA WEST DEVELOPMENT LLC | 1191193 | PASCO | 3 |
| COLUMBIA WINDOWS LLC | 4424342 | VANCOUVER | 1 |
| COLUMBIA XPRESS LLC | 1782752 | EVERETT | 1 |
| COLUMBIA-20 LLC | 3781490 | REPUBLIC | 4 |
| COLUMBUS TRANSPORT LLC | 2634198 | SEATTLE | 5 |
| COLUNGA INC | 3078520 | KENNEWICK | 4 |
| COLVICO INC | 560304 | SPOKANE | 42 |
| COLVILLE BUILDERS INC | 3235646 | COLVILLE | 5 |
| COLVILLE CONSTRUCTION COMPANY INC | 462460 | COLVILLE | 11 |
| COLVILLE LOGGING INC | 1428274 | INCHELIUM | 6 |
| COLVILLE SCHOOL DISTRICT | 1897189 | COLVILLE | 1 |
| COLVILLE TIMBER COMPANY LLC | 3057914 | COLVILLE | 1 |
| COLVILLE TRIBAL ECONOMIC CORPORATION | 1528063 | NESPELEM | 10 |
| COLVILLE VALLEY CONCRETE CORPORATION | 1779137 | COLVILLE | 30 |
| COLVILLES INC | 1941808 | REARDAN | 1 |
| COMAN CONSTRUCTION INC | 1899749 | SPOKANE | 1 |
| COMANCHE PAWNEE MINING CO LLC | 2583290 | ROSLYN | 1 |
| COMBINED CARRIERS COMPANY | 2444081 | PUYALLUP | 0 |
| COMBINED CARRIERS COMPANY | 271692 | PUYALLUP | 14 |
| COMBINED CONSTRUCTION INC | 2913175 | MUKILTEO | 1 |
| COMBINED CUTTING CONTRACTORS INC | 1912466 | MAPLE VALLEY | 10 |
| COMCAST CABLE COMMUNICATIONS LLC | 990957 | EVERETT | 213 |
| COMCOR CONSTRUCTION CORPORATION | 3509766 | GIG HARBOR | 1 |
| COMCRETE INC | 3451584 | SNOHOMISH | 9 |
| COMEDICAL INC | 4146790 | SEATTLE | 2 |
| COMELLA CONSTRUCTION INC | 1136452 | ELLENSBURG | 2 |
| COMFORTABLE MOVING LLC | 3236736 | VANCOUVER | 1 |
| COMIC TRANSPORT LLC | 1428892 | FEDERAL WAY | 2 |
| COMIDEGA TRANSPORTATION INC | 4435034 | FEDERAL WAY | 3 |
| COMMENCEMENT BAY CONSTRUCTION PRODUCTS INC | 2055372 | TACOMA | 1 |
| COMMENCEMENT BAY CORRUGATED | 3300307 | ORTING | 3 |
| COMMERCIAL AIRCRAFT INTERIORS INC | 2367503 | ARLINGTON | 2 |
| COMMERCIAL AIRCRAFT INTERIORS LLC | 2843919 | ARLINGTON | 2 |
| COMMERCIAL ALIGNMENT LLC | 4581070 | GREENACRES | 1 |
| COMMERCIAL CLEANOUT LLC | 4316139 | PUYALLUP | 1 |