- Labor Organizations, Christiansburg
- Labor Unions, Christiansburg
- Laboratories Medical, Christiansburg
- Land Surveyor, Christiansburg - Land Surveying Services
- Landscape Contractors & Designers, Christiansburg
- Landscaping, Christiansburg
- Landscaping Materials & Supplies, Christiansburg
- Late Night Restaurants, Christiansburg
- Laundry Equipment Rental & Leasing, Christiansburg
- Laundry Self Service, Christiansburg
- Lawn & Garden Equipment & Supplies, Christiansburg
- Lawn & Garden Services, Christiansburg
- Lawn Maintenance Services, Christiansburg
- Lawn Mower Repair & Blade Sharpening Service, Christiansburg
- Lawn Mowers & Power Equipment, Christiansburg
- Lawyers & Attorneys, Christiansburg
- Leather Goods Cleaners & Dyers, Christiansburg
- Legal Professionals, Christiansburg
- Lending Services, Christiansburg
- Libraries, Christiansburg
- Licensed Counselors, Christiansburg
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- Life Insurance, Christiansburg
- Lighting Fixtures & Equipment, Christiansburg
- Linens, Christiansburg
- Lingerie & Underwear for Women, Christiansburg - Bras, Panties, Bustiers, Corsets & More
- Liquor & Beer Manufacturers, Christiansburg
- Livestock, Christiansburg
- Livestock Auctions, Christiansburg
- Livestock Auctions, Christiansburg
- Loans Check Cashing, Christiansburg
- Loans Personal, Christiansburg
- Loans Title Services, Christiansburg
- Local & Short Haul Trucking Companies, Christiansburg
- Lodging, Christiansburg
- Lodging Services, Christiansburg
- Log Homes - Log Cabins Builders, Christiansburg - Building Contractors
- Long Haul Trucking Companies, Christiansburg
- Lubricating Oils , Christiansburg - Motor Oil
- Lumber & Lumber Products, Christiansburg
- Lumber & Lumber Products, Christiansburg
- Lutheran Church, Christiansburg
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