- M & D Auto Sales
- M & F Bank
- M & I Bank
- M & I Brokerage Services
- M & J Auto Sales
- M & L Construction
- M & M Auto
- M & M Auto Body
- M & M Auto Parts
- M & M Auto Repair
- M & M Automotive
- M & M Body Shop
- M & M Cleaners
- M & M Concrete
- M & M Grocery
- M & M Income Tax Service
- M & M Landscaping
- M & M Market
- M & M Mini Storage
- M & M Printing
- M & M Repair
- M & M Roofing
- M & M Sales
- M & M Services
- M & M Supply
- M & M Tax Service
- M & M Towing
- M & M Tree Service
- M & M Trucking
- M & M Upholstery
- M & T Bank
- M & T Bank - Area Branches
- M 2 Collision Care Centers
- M A B Paints
- M A B Paints - Stores
- M C Construction
- M C Motors
- M H M Parking Corporation
- M J Electric