- Labor Organizations, Burlington
- Laboratories Dental, Burlington
- Laboratories Medical, Burlington
- Landscape Contractors & Designers, Burlington
- Landscaping, Burlington
- Late Night Restaurants, Burlington
- Laundry Self Service, Burlington
- Lawn & Garden Services, Burlington
- Lawn Maintenance Services, Burlington
- Lawyers & Attorneys, Burlington
- Lead Inspection, Testing & Consulting, Burlington - Lead Paint
- Legal Professionals, Burlington
- Libraries, Burlington
- Life Insurance, Burlington
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- Limousine Service, Burlington
- Linemen's Equipment & Supplies, Burlington
- Linens, Burlington
- Liquor Stores, Burlington
- Loans Personal, Burlington
- Locksmiths, Burlington - Residence, Commercial, Safe & Auto Car Locksmith
- Lodging, Burlington
- Long Haul Trucking Companies, Burlington
- Lottery Game Retailers, Burlington
- Lumber & Lumber Products, Burlington
- Lumber & Lumber Products, Burlington
- Lumber Companies, Burlington - Wholesale, Manufacturers & Suppliers
- Luncheonette Restaurants, Burlington
- Lutheran Church, Burlington
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