- Labor & Employment Consultants, Gloversville
- Labor Organizations, Gloversville
- Laboratories Dental, Gloversville
- Laboratories Medical, Gloversville
- Lace & Wrap Knit Fabric Mills, Gloversville
- Lamp Shades, Gloversville
- Lamps & Lamp Shades Retail, Gloversville - Desk, Table & Floor Lamps
- Landscape Contractors & Designers, Gloversville
- Landscaping, Gloversville
- Late Night Restaurants, Gloversville
- Laundry Equipment Rental & Leasing, Gloversville
- Lawn & Garden Equipment & Supplies, Gloversville
- Lawn Mower Repair & Blade Sharpening Service, Gloversville
- Lawn Mowers & Power Equipment, Gloversville
- Lawyers & Attorneys, Gloversville
- Leather Apparel Goods Manufacturers, Gloversville
- Leather Finishers, Gloversville
- Leather Goods, Gloversville
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- Leather Goods Stores & Dealers, Gloversville
- Leather Tanning & Finishing Manufacturers, Gloversville
- Legal Professionals, Gloversville
- Lennox Air Conditioning, Gloversville - Air Conditioner Contractors & Systems
- Libraries, Gloversville
- Life Insurance, Gloversville
- Lighting Fixtures & Equipment, Gloversville
- Limousine Service, Gloversville
- Liquor Stores, Gloversville
- Local & Short Haul Trucking Companies, Gloversville
- Lodging, Gloversville
- Long Haul Trucking Companies, Gloversville
- Lp Gas Equipment & Supplies, Gloversville
- Luggage & Accessories , Gloversville
- Lumber & Lumber Products, Gloversville
- Lumber & Lumber Products, Gloversville
- Luncheonette Restaurants, Gloversville
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