- Machinery, Supplies & Equipment - Business Supplies Related, Louisville
- Management Consultants & Services, Louisville
- Manufacturing, Louisville
- Manufacturing Products, Louisville
- Meat Packers, Louisville
- Medical Research, Louisville
- Medical Research & Development, Louisville - Medical Information & Research
- Metal Buildings, Louisville - Kits, Homes, Steel Buildings, etc
- Methodist Church, Louisville
|
- Miscellaneous Business Services, Louisville
- Miscellaneous Government, Louisville
- Miscellaneous Personal Services, Louisville
- Miscellaneous Professional, Louisville
- Monuments, Tombstones, Markers & Memorials, Louisville
- Motor Vehicle, Louisville
- Motor Vehicle Rental & Leasing, Louisville
- Movie Theaters, Louisville
- Moving Truck Rental , Louisville
|
