| M&M Transport Services, Inc. MD | Transportation & Warehousing | 0 | - | F |
| M&N Dental Care, PLLC CT | Healthcare & Social Assistance | 1 | $180,000 | - |
| M&N; Plastics, Inc. FL | - | 0 | - | - |
| M&Q Packaging, LLC PA | Manufacturing | 0 | - | F |
| M&R Consultants CORPORATION MA | Professional & Technical Services | 9 | $104,929 | - |
| M&R Printing Equipment Inc IL | Manufacturing | 1 | $250,000 | F |
| M&S Consulting LLC WV | Professional & Technical Services | 3 | $128,543 | - |
| M&S Corporation ME | Accommodation & Food Services | 1 | $90,000 | - |
| M&S Transit, INC. NC | Transportation & Warehousing | 0 | - | F |
| M&T Bank NY | Finance & Insurance | 59 | $126,927 | - |
| M&T Bank (Long Island) NY | - | 0 | - | - |
| M&T Bank (Mid-Hudson) NY | - | 0 | - | - |
| M&T Bank (NYC) NY | - | 0 | - | - |
| M&T Bank (Staten Island) NY | - | 0 | - | - |
| M&T Enterprises UT | Construction | 0 | - | F |
| M&Tsg CO | Professional & Technical Services | 0 | - | F |
| M&W Precast LLC PA | Manufacturing | 0 | - | F |
| M'Shoogy Animal Rescue MO | Professional & Technical Services | 1 | $110,000 | - |
| M'Shoogy's Animal Rescue MO | Professional & Technical Services | 1 | $110,000 | - |
| M-1 Merchant Services Inc. CA | Finance & Insurance | 1 | $74,880 | - |
| M-B Companies, Inc. WI | Manufacturing | 1 | $135,000 | - |
| M-D Building Products OK | Manufacturing | 0 | - | F |
| M. A. Mortenson Company MN | Construction | 23 | $114,980 | - |
| M. Argueso & Co. Inc dba Paramelt OH | - | 0 | - | - |
| M. Arthur Gensler Jr. & Associates Inc. dba Gensler CA | - | 0 | - | - |
| M. Arthur Gensler Jr. & Associates, Inc. CA | Professional & Technical Services | 25 | $93,094 | - |
| M. Arthur Gensler Jr. & Associates, Inc. a California Corporation CA | - | 0 | - | - |
| M. Block & Sons, Inc. IL | - | 0 | - | - |
| M. Block and Sons TN | - | 0 | - | - |
| M. Glosser & Sons, Inc. PA | Wholesale Trade | 0 | - | F |
| M. J. Electric LLC MI | Construction | 0 | - | B |
| M. Lipsitz & Co., Ltd. TX | Wholesale Trade | 0 | - | F |
| M. Ludvik Engineering PC NY | Professional & Technical Services | 1 | $89,000 | - |
| M. Price Distributing Company VA | Transportation & Warehousing | 0 | - | F |
| M. R. Tudor - California, Inc. CA | Real Estate | 2 | $87,500 | - |
| M. Shiroma Painting Co., Inc. HI | Construction | 4 | $52,380 | - |
| M. Slavin & Sons, Ltd. NY | - | 0 | - | - |
| M.A. Ford Manufacturing Company Inc IA | Manufacturing | 0 | - | F |
| M.A. Patout & Son Limited, LLC LA | Manufacturing | 0 | - | A |
| M.AI Unbound, INC. CA | Professional & Technical Services | 1 | $190,000 | - |
| M.C. Dean, Inc. VA | Professional & Technical Services | 20 | $122,927 | C |
| M.C. Paulino, Inc. GU | Construction | 1 | $52,000 | - |
| M.D. Service Plumbing, Inc CO | Construction | 0 | - | F |
| M.E. Flow VA | Construction | 0 | - | F |
| M.E. Fox & Company, Inc. CA | - | 0 | - | - |
| M.G. Design Associates Corporation FL | - | 0 | - | - |
| M.G. Design Associates Corporation WI | - | 0 | - | - |
| M.G. Oil Company, Inc. SD | Retail Trade | 0 | - | A |
| M.G. Waldbaum Company MN | Manufacturing | 1 | $97,604 | - |
| M.H. Eby, Inc. IA | Manufacturing | 0 | - | F |
