- Labor Organizations, Vandalia
- Labor Unions, Vandalia
- Laboratories Medical, Vandalia
- Land Surveyor, Vandalia - Land Surveying Services
- Landfill Construction, Vandalia
- Landscape Contractors & Designers, Vandalia
- Landscaping, Vandalia
- Late Night Restaurants, Vandalia
- Lawn & Garden Equipment & Supplies, Vandalia
- Lawn & Garden Services, Vandalia
- Lawn Maintenance Services, Vandalia
- Lawyers & Attorneys, Vandalia
- Legal Professionals, Vandalia
- Libraries, Vandalia
- Licensed Counselors, Vandalia
- Life Insurance, Vandalia
- Lighting Consultants, Vandalia
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- Lighting Consultants & Designers, Vandalia
- Lighting Contractors, Vandalia
- Liquor Stores, Vandalia
- Living Word Church, Vandalia
- Loans Personal, Vandalia
- Local & Short Haul Trucking Companies, Vandalia
- Locks, Vandalia
- Locksmiths, Vandalia - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Vandalia
- Lodging, Vandalia
- Logistics Freight, Vandalia
- Long Haul Trucking Companies, Vandalia
- Lumber & Lumber Products, Vandalia
- Lumber & Lumber Products, Vandalia
- Lumber & Wood Products Manufacturers, Vandalia
- Lumber Companies, Vandalia - Wholesale, Manufacturers & Suppliers
- Lutheran Church, Vandalia
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