Sort by:
| Company | City | NAICS |
|---|---|---|
| Mediate Management Co., Inc. | Charlestown, MA | Offices of Real Estate Agents and Brokers |
| Medical Psychology Center | Beverly, MA | Outpatient Mental Health and Substance Abuse Centers |
| Medtronic Interventional Vascular | Danvers, MA | Surgical and Medical Instrument Manufacturing |
| MEFA | Boston, MA | Public Finance Activities |
| Mei Managment | Springfield, MA | Office Administrative Services |
| Mercer Realty LLC | West Palm Beach, MA | Offices of Real Estate Agents and Brokers |
| Mercier Carpet Service Inc. | West Springfield, MA | Floor Covering Stores |
| Mercier Electric Co., Inc. | Auburn, MA | Electrical Contractors and Other Wiring Installation Contractors |
| Merck & Co., Inc. | South Boston, MA | Pharmaceutical Preparation Manufacturing |
| Meredith Springfield Associates, Inc. | Ludlow, MA | Administrative Management and General Management Consulting Services |
| Meridian Industrial Group LLC | Holyoke, MA | Machine Shops |
| Merrill Engineers and Land Surveyors | Hanover, MA | Navigational Services to Shipping |
| Merrimac Spool & Reel Co., Inc. | Haverhill, MA | Other Paperboard Container Manufacturing |
| Merrimac Tool Co., Inc. | Amesbury, MA | Machine Shops |
| Merrimack Valley Area Transportation Co. | Haverhill, MA | Mixed Mode Transit Systems |
| Messina Multistate Tax LLC | Boston, MA | Tax Preparation Services |
| Mestek, Inc. | Westfield, MA | Construction Machinery Manufacturing |
| Metalcrafters, Inc. | Methuen, MA | Sheet Metal Work Manufacturing |
| Metfab Engineering Inc | Attleboro Falls, MA | Sheet Metal Work Manufacturing |
| Metric Screw & Tool Company | Wakefield, MA | Bolt, Nut, Screw, Rivet, and Washer Manufacturing |
| Metro North Regional Employ. | Cambridge, MA | Vocational Rehabilitation Services |
| Metropolitan Pipe and Supply Company | Somerville, MA | Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers |
| Metrus Energy | San Francisco, MA | Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers |
| MGB US, Inc. | Franklin, MA | Precision Turned Product Manufacturing |
| MHC, Inc. / Quik Foods d/b/a Burger King | West Springfield, MA | Limited-Service Restaurants |
| Mia Regazza, Inc. | Abington, MA | Full-Service Restaurants |
| Michael J. Baccoli, Inc. | Lee, MA | Nonclassifiable establishments |
| Michael Pagano | Arlington, MA | Architectural Services |
| Michelle B. Carron, Att.at Law | Newton, MA | Offices of Lawyers |
| Micro Abrasives Corporation | Westfield, MA | Abrasive Product Manufacturing |
| Micron Products Inc. | Fitchburg, MA | Special Die and Tool, Die Set, Jig, and Fixture Manufacturing |
| Microsoft Corporation | Cambridge, MA | Custom Computer Programming Services |
| MicroTek, Inc. | Chicopee, MA | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals |
| Mid State Welding | Southbridge, MA | Fabricated Structural Metal Manufacturing |
| Middle East Bakery Inc. dba Joseph’s | Lawrence, MA | Commercial Bakeries |
| Middlesex Savings Bank | Natick, MA | Savings Institutions |
| Midish Corporation d/b/a The Tavern | Nantucket, MA | Full-Service Restaurants |
| Mijanika Corporation | Holliston, MA | General Automotive Repair |
| Mike Blume Electrician, Inc. | Sheffield, MA | Electrical Contractors and Other Wiring Installation Contractors |
| Mikhail Shulkin, DDS PC | Waltham, MA | Offices of Dentists |
| Miles Kedex Company, Inc. | Westminster, MA | Fabric Coating Mills |
| Milford Nissan Corp. | Milford, MA | New Car Dealers |
| Milford Water Company | Milford, MA | Water Supply and Irrigation Systems |
| Milhench Industrial Supply Co. | New Bedford, MA | Industrial Machinery and Equipment Merchant Wholesalers |
| Mill Brook Pediatrics | Sudbury, MA | Offices of Physicians (except Mental Health Specialists) |
| Millennium Power Services, Inc. | Westfield, MA | Other Metal Valve and Pipe Fitting Manufacturing |
| Miller Properties | Ayer, MA | Furniture Stores |
| Milliman Inc. | Wakefield, MA | Human Resources Consulting Services |
| MilliporeSigma | Burlington, MA | Analytical Laboratory Instrument Manufacturing |
| Milne Plumbing & Heating Inc. | Manchester, MA | Plumbing, Heating, and Air-Conditioning Contractors |