- Laboratories Medical, Roslyn Heights
- Landscape Contractors & Designers, Roslyn Heights
- Landscape Lighting, Roslyn Heights
- Landscaping, Roslyn Heights
- Late Night Restaurants, Roslyn Heights
- Laundry Self Service, Roslyn Heights
- Lawn & Garden Equipment & Supplies, Roslyn Heights
- Lawyers & Attorneys, Roslyn Heights
- Legal & Tax Services, Roslyn Heights
- Legal Professionals, Roslyn Heights
- Life Insurance, Roslyn Heights
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- Limousine Dealers, Roslyn Heights
- Limousine Service, Roslyn Heights
- Lingerie & Underwear for Women, Roslyn Heights - Bras, Panties, Bustiers, Corsets & More
- Liquor Stores, Roslyn Heights
- Loans Personal, Roslyn Heights
- Locks, Roslyn Heights
- Locksmiths, Roslyn Heights - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Roslyn Heights
- Lodging, Roslyn Heights
- Logistics Freight, Roslyn Heights
- Long Haul Trucking Companies, Roslyn Heights
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