| C & K TRUCKING LLCWorcester, MA | 2073353 | 2 |
| C & S RETAIL LUMBER CO INCMillbury, MA | 9352 | 4 |
| C & W TRANSPORTATION INCLexington, MA | 9354 | 46 |
| C SIMONELLI & SONS INCBoston, MA | 762693 | 4 |
| C&S TRUCKING INCWilliamsburg, MA | 435423 | 1 |
| CABRAL TRANSPORTATION LLCWorcester, MA | 4322629 | 1 |
| CAMPOS TRUCKING CORPBoston, MA | 2910822 | 5 |
| CAPE COD FIREWOOD LLCYarmouth Port, MA | 3177706 | 9 |
| CAPRON LIGHTING AND SOUND CO INCNeedham Heights, MA | 8763 | 10 |
| CARLOS TRANSPORT CORPORATIONLawrence, MA | 4036837 | 3 |
| CAROLE INDUSTRIES INCWoburn, MA | 17924 | 2 |
| CAROLI & SONS TRANSPORT INCSaugus Ma, MA | 2633288 | 1 |
| CATWAY FREIGHT & LOGISTICS LLCRevere, MA | 4336662 | 3 |
| CAVALIER COACH CORPDedham, MA | 315367 | 20 |
| CBK AUTOMOTIVE REPAIR INCBoxborough, MA | 2027086 | 8 |
| CDM CONSTRUCTORS INCBoston, MA | 906874 | 4 |
| CEM TRANSPORTATION INCBrockton, MA | 4246348 | 1 |
| CENTRAL ELECTRICAL SPECIALTY CORPBrockton, MA | 3799759 | 1 |
| CGM TRUCKING INCWestfield, MA | 4316074 | 1 |
| CHAMPION LANDSCAPING TREE LLCLynn, MA | 3657813 | 2 |
| CHARLES D FLORESWestfield, MA | 3546149 | 1 |
| CHARLES TRANSPORTATION INCMiddleboro, MA | 1946348 | 8 |
| CHAVES MARKET INCFall River, MA | 613945 | 1 |
| CHICOPEE INDUSTRIAL CONTRACTORS INCChicopee, MA | 474309 | 8 |
| CHICOS LANDSCAPING INCLawrence, MA | 4252740 | 1 |
| CHICOS TOWING SERVICE INCSpringfield, MA | 1791674 | 4 |
| CHRIS SERVICE CENTER INCWalpole, MA | 332459 | 17 |
| CHRYSTAL TRUCKING SERVICES INCMethuen, MA | 4151327 | 5 |
| CHUNKS TRUCKING LLCRevere, MA | 3835287 | 2 |
| CINDA EXPRESS LLCBoston, MA | 4398079 | 1 |
| CJP TRANS LLCShrewsbury, MA | 2413934 | 23 |
| CL COURIER INCNorthborough, MA | 3812460 | 1 |
| CLARK FINE ART SERVICES LLCNewton, MA | 2419989 | 4 |
| CLAYTON D DAVENPORT TRUCKING INCGreenfield, MA | 22088 | 26 |
| CLEAN HARBORS ENERGY AND INDUSTRIAL SERVICES CORPNorwell, MA | 2525707 | 5 |
| CLEAN TECH CONSTRUCTION INCORPORATEDBoston, MA | 4285269 | 10 |
| CMPLOGISTICS LLCWorcester, MA | 4400319 | 2 |
| COHENNO INCStoughton, MA | 58242 | 14 |
| COLUMBIA ASC INCLawrence, MA | 2102858 | 1 |
| COMMONWEALTH LIMOUSINE SERVICE INCWaltham, MA | 972630 | 2 |
| COMMUNITY SUFFOLK INCChelsea, MA | 17938 | 2 |
| CONSUMER PRODUCT DISTRIBUTORS LLCChicopee, MA | 237271 | 134 |
| CONTAINER TRANSPORTATION OF NEW ENGLAND LLCBridgewater, MA | 2510468 | 4 |
| CONTINENTAL CONSTRUCTION GROUP LLCLynn, MA | 3314221 | 1 |
| CORJA AUTO HAULING INCAgawam, MA | 2781912 | 26 |
| CORNERSTONE EXPEDITED LLCLowell, MA | 3340883 | 6 |
| COSMIC EXPRESS INCQuincy, MA | 4436784 | 1 |
| COUNTRYSCAPE LLCShelburne Fls, MA | 3235145 | 4 |
| COURIER EXPRESS INCSpringfield, MA | 551399 | 6 |
| CRESTVIEW CONSTRUCTION & TRUCKING INCSouthwick, MA | 759785 | 15 |
| CROCKER ARCHITECTURAL SHEET METAL CO INCWorcester, MA | 815450 | 3 |
| CROCKER BUILDING COMPANY INCSpringfield, MA | 3226472 | 2 |
| CROCO MOTORS LLCLowell, MA | 4225172 | 1 |
| CROSS TRANSPORTATION MA LLCLunenburg, MA | 3750913 | 6 |
| CRUISE CONTROL TRANSPORTATION INCFiskdale, MA | 3316652 | 32 |
| CRUZINGTRUCKING LLCSalem, MA | 4210316 | 2 |
| CSL AND SONS LOGISTICS LLCBridgewater, MA | 2542345 | 6 |
| CV TOWING INCEast Boston, MA | 3164524 | 3 |
| CVTRANS LLCBrockton, MA | 4208243 | 3 |