Labor Organizations
 Laboratories - Medical
 Laboratories - Testing
 Ladies Ready To Wear – Retail
 Lamp Shades
 Lamp Shades - Wholesale & Manufacturers
 Lamps
 Lamps - Wholesale & Manufacturers
 Land Clearing & Leveling
 Land Companies
 Land Contracts
 Landfills
 Landscape Architects
 Landscape Contractors
 Landscaping Equipment & Supplies
 Laundries
 Laundries - Self Service
 Lawn & Garden Equipment & Supplies
 Lawn Maintenance
 Lawn Mowers
 Lawn Mower Parts
 Leasing Services
 Leather Goods - Repair
 Legal Services Pre-paid Plans
 Libraries - Public
 Lighting Fixtures - Retail
 Lighting Fixtures - Wholesale & Manufacturers
 Linen Supply Service
 Lingerie - Retail
 Liquor Stores
 Livestock Breeders
 Livestock Commission Companies
 Livestock Dealers
 Livestock Hauling
 Loans
 Loans - Personal
 Loans - Real Estate
 Locks & Locksmiths
 Lodges
 Logging Companies
 Logging Equipment & Supplies
 Lubricants
 Lumber Mill Representatives
 Lumber - Retail
 Lumber - Treating
 Lumber - Wholesale