- Laboratories Medical, Purcellville
- Laboratory Equipment Repair & Service, Purcellville
- Landscape Contractors & Designers, Purcellville
- Landscaping, Purcellville
- Landscaping Materials & Supplies, Purcellville
- Laser Equipment Repair & Service, Purcellville
- Late Night Restaurants, Purcellville
- Lawn & Garden Chemicals, Insecticides & Fertilizers, Purcellville
- Lawn & Garden Equipment & Supplies, Purcellville
- Lawn & Garden Services, Purcellville
- Lawn Maintenance Services, Purcellville
- Lawn Mower Repair & Blade Sharpening Service, Purcellville
- Lawn Mowers & Power Equipment, Purcellville
- Lawyers & Attorneys, Purcellville
- Legal Professionals, Purcellville
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- Libraries, Purcellville
- Liquid & Bulk Storage, Purcellville
- Liquor & Beer Manufacturers, Purcellville
- Live Theaters, Purcellville
- Livestock, Purcellville
- Livestock Dealers, Purcellville
- Loans Personal, Purcellville
- Locks, Purcellville
- Locksmiths, Purcellville - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Purcellville
- Lodging, Purcellville
- Lumber & Lumber Products, Purcellville
- Lumber & Lumber Products, Purcellville
- Lumber & Wood Products Manufacturers, Purcellville
- Lumber Companies, Purcellville - Wholesale, Manufacturers & Suppliers
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