- Labor Organizations, International Falls
- Laboratories Dental, International Falls
- Laboratories Medical, International Falls
- Land Surveyor, International Falls - Land Surveying Services
- Laser Printers, International Falls - Office Supplies
- Late Night Restaurants, International Falls
- Lawn & Garden Equipment & Supplies, International Falls
- Lawn & Garden Services, International Falls
- Lawn Maintenance Services, International Falls
- Lawn Mowers & Power Equipment, International Falls
- Lawyers & Attorneys, International Falls
- Legal & Tax Services, International Falls
- Legal Professionals, International Falls
- Libraries, International Falls
- License Services, International Falls
- Life Insurance, International Falls
- Liquid Transportation - Non Hazardous, International Falls
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- Liquor Stores, International Falls
- Living Room Furniture, International Falls
- Locks, International Falls
- Locksmiths, International Falls - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, International Falls
- Lodging, International Falls
- Lodging Services, International Falls
- Logging Equipment & Supplies, International Falls
- Long Haul Trucking Companies, International Falls
- Lubricating Oils , International Falls - Motor Oil
- Lumber & Lumber Products, International Falls
- Lumber & Lumber Products, International Falls
- Lumber & Wood Products Manufacturers, International Falls
- Lumber Brokers, International Falls
- Lumber Companies, International Falls - Wholesale, Manufacturers & Suppliers
- Lutheran Church, International Falls
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