| MACK CONSTRUCTION AND LANDSCAPING LLC | 2443268 | TOLLAND | 2 |
| MACK FIRE PROTECTION LLC | 1879941 | MIDDLETOWN | 1 |
| MACK SERVICES LLC | 3699830 | WESTPORT | 1 |
| MACKA DELIVERIES LLC | 4518810 | BRIDGEPORT | 1 |
| MACKENZIE PAINTING COMPANY | 1959275 | STRATFORD | 1 |
| MACKENZIE RIDGE FARM LLC | 3389044 | BROAD BROOK | 3 |
| MACKENZIE SERVICE CORPORATION | 2274016 | STRATFORD | 3 |
| MACKENZIE TREE LLC | 2453883 | PROSPECT | 1 |
| MACKEYS INCORPORATED | 672689 | WILLIMANTIC | 2 |
| MACNEIL ELECTRIC LLC | 3454081 | OAKDALE | 1 |
| MACOMBER TREE AND GARDEN LLC | 3322060 | TOLLAND | 1 |
| MACOY CONTRACTING LLC | 2318321 | STRATFORD | 3 |
| MACRI ROOFING INC | 630597 | MERIDEN | 3 |
| MACRO CONTRACTING AND MANAGEMENT LLC | 2896168 | WALLINGFORD | 1 |
| MAD LAWN AND TREE LLC | 4063468 | ESSEX | 1 |
| MAD LOGISTICS LLC | 3412181 | TRUMBULL | 23 |
| MAD TENTS LLC | 4249744 | WALLINGFORD | 2 |
| MADA LLC | 2878432 | PUTNAM | 4 |
| MADD BEAVER TREE EXPERTS & STUMP GRINDING SPECIALIST LLC | 1454139 | MILFORD | 2 |
| MADE AND FORMED FOUNDATIONS | 780947 | CHAPLIN | 1 |
| MADIA BUILDING INC | 2033813 | TORRINGTON | 1 |
| MADISON AUTOMOTIVE SALES & SERVICE INC | 1673740 | BRIDGEPORT | 3 |
| MADISON EARTH CARE SERVICE INC | 2046541 | MADISON | 35 |
| MADISON HARDWOOD FLOORS SUPPLIES INC | 2355245 | MILFORD | 4 |
| MADISON OIL COMPANY INC | 642798 | MADISON | 3 |
| MADISON POLYMERIC ENGINEERING INC | 368533 | BRANFORD | 1 |
| MADISON SUPPLY CO LLC | 1081726 | BRIDGEPORT | 3 |
| MADISON TRANSPORTATION LLC | 4446388 | DANBURY | 1 |
| MADONNA PROPERTY MANAGEMENT | 2036902 | EAST HAVEN | 2 |
| MAE LAWN & LANDSCAPE SERVICES LLC | 2134209 | BETHANY | 1 |
| MAE SKYY ENTERPRISES LLC | 4412973 | STAMFORD | 0 |
| MAEGOG FARMS LLC | 642799 | SALEM | 1 |
| MAELO DELIVERY LLC | 3581310 | DANBURY | 4 |
| MAELSTROM RENTAL PROPERTIES LLC | 4346156 | ROCKY HILL | 0 |
| MAFFIOLETTI SERVICES LLC | 4225216 | HARTFORD | 1 |
| MAGA TRUCKING YOUR MOM | 3293298 | NORWICH | 1 |
| MAGANA ROOFING & SIDING LLC | 2967681 | STAMFORD | 1 |
| MAGANA TRUCKING LLC | 2845229 | STAMFORD | 3 |
| MAGEE COMPANY | 603367 | MIDDLEFIELD | 2 |
| MAGEE COMPANY | 4882780 | MIDDLEFIELD | 10 |
| MAGEE FAMILY OF COMPANIES INC | 3038911 | WEST HARTFORD | 5 |
| MAGEE ROOFING & REMODELING LLC | 4471651 | CROMWELL | 1 |
| MAGGS AUTO BODY | 1562520 | NORWALK | 2 |
| MAGIC HANDS MASONRY LLC | 3444501 | SEYMOUR | 1 |
| MAGIC OUTDOOR DESIGN LLC | 4179685 | MERIDEN | 1 |
| MAGIC QUALITY MAINTENANCE INC | 4087808 | SOUTH WINDSOR | 1 |
| MAGILLA CONSTRUCTION | 3843712 | WALLINGFORD | 1 |
| MAGISTRAL TOWING LLC | 4364763 | WEST HAVEN | 1 |
| MAGISTRAL TOWING LLC | 5689535 | WEST HAVEN | 2 |
| MAGLIERI CONSTRUCTION & PAVING INC | 642800 | BLOOMFIELD | 7 |
| MAGNA ROSETTA CERAMICA LLC | 4215739 | STRATFORD | 1 |
| MAGNA STEEL SALES INC | 174722 | BEACON FALLS | 1 |
| MAGNAKLEEN SERVICES LLC | 675975 | MERIDEN | 15 |
| MAGNOLIA NEW GARDEN LLC | 4378879 | NEW MILFORD | 1 |
| MAGNOLIA RUN EQUESTRIAN CENTER LLC | 3342695 | WILLINGTON | 1 |
| MAGNOLIA TREE SERVICES LLC | 3142769 | STRATFORD | 3 |
| MAH ENTERPRISES INC | 1377436 | STRATFORD | 3 |
| MAHER ENTERPRISE LLC | 3598374 | SHERMAN | 1 |
| MAHER TWAL | 2288734 | STAMFORD | 1 |
| MAHIEU ENTERPRISES INC | 1153644 | LITCHFIELD | 6 |
| MAHIKA EXPRESS LLC | 4361281 | WATERBURY | 1 |
| MAHIR SALES LLC | 6929749 | MERIDEN | 1 |
| MAHLIKYLE LOGISTICS LLC | 2251990 | PAWCATUCK | 1 |
| MAIL CENTER SERVICES INC | 472822 | BRIDGEPORT | 5 |
| MAIN ENTERPRISES INC | 2180416 | STRATFORD | 1 |
| MAIN STREET AUTO LLC | 2020056 | WATERTOWN | 4 |
| MAIN STREET AUTO SALES AND SERVICE LLC | 1492599 | DANIELSON | 1 |
| MAIN STREET WELDING LLC | 4570563 | MILFORD | 1 |
| MAINLINE ELECTRIC LLC | 4480594 | WINDHAM | 1 |
| MAINLINE EXPRESS LLC | 4571286 | WATERBURY | 1 |
| MAINSTAY MOVING LLC | 5293534 | GREENWICH | 1 |
| MAISANO BROS INC | 655660 | NORTHFORD | 16 |
| MAISTO'S PARTY PLUS INC | 2374290 | WOLCOTT | 1 |
| MAITA CONSTRUCTION LLC | 1670322 | DANBURY | 2 |
| MAJESTIC LANDSCAPING LLC | 2053029 | NAUGATUCK | 1 |
| MAJESTIC LIMOUSINES & TRANSPORTATION SERVICES LLC | 1288972 | PROSPECT | 6 |
| MAJESTIC MANAGEMENT CCORP | 3813625 | NEW HAVEN | 1 |
| MAJESTIC TRANSPORTATION SERVICES INC | 2215144 | WOODSTOCK | 0 |
| MAJETTE LOGISTICS LLC | 3942018 | DANBURY | 1 |
| MAJK CORP | 987688 | WESTBROOK | 1 |
| MAJOR MOVERS INC | 4419437 | HAMDEN | 4 |
| MAJOR OAK BUILDERS & CONSULTANTS LLC | 4554039 | MILFORD | 1 |
| MAJOR SERVICES LLC | 4200027 | NEW HAVEN | 1 |
| MAJOR TIRE COMPANY LLC | 4136499 | STRATFORD | 2 |
| MAJORS PRO TRUCKING LLC | 4043931 | NEW HAVEN | 0 |
| MAK MARKETING INC | 1496560 | BROOKFIELD | 3 |
| MAKE A HOME FOUNDATION INC | 2462298 | WATERBURY | 2 |
| MAKEAMOVE LOGISTICS LLC | 4019977 | TOLLAND | 0 |
| MAKEWAY LOGISTICS CORP | 7996713 | HARTFORD | 2 |
| MAKEWAY LOGISTICS CORP | 4277029 | HARTFORD | 1 |
| MAKKAWAYY LLC | 4486414 | WEST HARTFORD | 1 |
| MAL SERVICES LLC | 4028234 | BRIDGEPORT | 1 |
| MAL'S AUTO & TRUCK REPAIR INC | 455771 | SAYBROOK | 26 |
| MALDONADO LANDSCAPING & MASONRY LLC | 2608369 | STAMFORD | 1 |
| MALEK LANDSCAPING LLC | 1690265 | VOLUNTOWN | 3 |
| MALIN & SONS LLC | 649966 | MILFORD | 7 |
| MALIRO LLC | 4244852 | STRATFORD | 0 |
| MALL VIEW MOTORS | 2256710 | WATERBURY | 2 |
| MALLICO CONSTRUCTION LLC | 1471789 | ORANGE | 7 |
| MALLICO PAVING CO INC | 699712 | MILFORD | 2 |