- Labor Organizations, Wadena
- Laboratory Equipment Repair & Service, Wadena
- Land Surveyor, Wadena - Land Surveying Services
- Laser Equipment Repair & Service, Wadena
- Lawn & Garden Chemicals, Insecticides & Fertilizers, Wadena
- Lawn & Garden Equipment & Supplies, Wadena
- Lawn Mower Repair & Blade Sharpening Service, Wadena
- Lawn Mowers & Power Equipment, Wadena
- Lawyers & Attorneys, Wadena
- Legal Professionals, Wadena
- License Services, Wadena
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- Life Insurance, Wadena
- Livestock, Wadena
- Loans Personal, Wadena
- Lodging, Wadena
- Lodging Services, Wadena
- Long Haul Trucking Companies, Wadena
- Lumber & Lumber Products, Wadena
- Lumber & Lumber Products, Wadena
- Lumber Companies, Wadena - Wholesale, Manufacturers & Suppliers
- Lutheran Church, Wadena
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