- Machine Shop & Tool Repair Service, Carpentersville
- Machinery, Supplies & Equipment - Business Production Related, Carpentersville
- Machinery, Supplies & Equipment - Business Supplies Related, Carpentersville
- Machinery, Supplies & Equipment - Construction & Contractor Related, Carpentersville
- Mailbox Rental Services, Carpentersville
- Mailing, Delivery & Courier Service, Carpentersville
- Malls & Shopping Centers, Carpentersville
- Management Consultants & Services, Carpentersville
- Manicurists & Pedicurists, Carpentersville
- Manufacturers Agents & Representatives, Carpentersville
- Manufacturers Representative, Carpentersville - Reps, Independent Sales Representative, Sales Agent, etc
- Manufacturing, Carpentersville
- Manufacturing Products, Carpentersville
- Material Handling Equipment, Carpentersville - Conveyor Belt, Pallet Jack, Forklift, etc
- Meat Packers, Carpentersville
- Medical Supplies & Equipment, Carpentersville
- Mental Retardation & Developmentally Disabled Services, Carpentersville
- Merchandise Sales Events, Carpentersville
- Metal Stampings Manufacturers, Carpentersville
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- Methodist Church, Carpentersville
- Mexican & Latin American Goods & Products Stores, Carpentersville
- Mexican Restaurants, Carpentersville
- Mini & Self Storage, Carpentersville
- Miscellaneous Household Item Repair, Carpentersville
- Miscellaneous Government, Carpentersville
- Miscellaneous Manufacturing, Carpentersville
- Miscellaneous Metal Work Manufacturers, Carpentersville
- Miscellaneous Professional, Carpentersville
- Mortgage Bankers & Correspondents, Carpentersville
- Motor Vehicle, Carpentersville
- Motor Vehicle Rental & Leasing, Carpentersville
- Moving & Storage Supplies & Equipment, Carpentersville
- Moving Companies, Carpentersville
- Moving Services - Labor & Material, Carpentersville
- Moving Truck Rental , Carpentersville
- Muffler Shop & Exhaust Systems, Carpentersville
- Music, Carpentersville
- Musical Instruments Repair, Sales & Service, Carpentersville
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