- Labels & Tags, Upland
- Labor & Employment Consultants, Upland
- Labor And Employment Relations Attorneys & Lawyers, Upland
- Labor And Employment Relations Lawyers & Attorneys, Upland
- Labor Organizations, Upland
- Laboratories Dental, Upland
- Laboratories Medical, Upland
- Laboratory Equipment Repair & Service, Upland
- Ladder & Ladder Accessories, Upland
- Lamp Shades, Upland
- Lamps & Lamp Shades Retail, Upland - Desk, Table & Floor Lamps
- Land Surveyor, Upland - Land Surveying Services
- Landscape Contractors & Designers, Upland
- Landscape Garden Services, Upland
- Landscaping, Upland
- Landscaping Materials & Supplies, Upland
- Laser Game Centers, Upland
- Late Night Restaurants, Upland
- Lawn & Garden Chemicals, Insecticides & Fertilizers, Upland
- Lawn & Garden Decor & Ornaments, Upland
- Lawn & Garden Equipment & Supplies, Upland
- Lawn & Garden Services, Upland
- Lawn & Garden Sprinkler Systems, Upland
- Lawn & Garden Supplies & Equipment, Upland
- Lawn Maintenance Services, Upland
- Lawn Mower Repair & Blade Sharpening Service, Upland
- Lawn Mowers & Power Equipment, Upland
- Lawyers & Attorneys, Upland
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- Lead Inspection, Testing & Consulting, Upland - Lead Paint
- Lebanese Restaurants, Upland
- Legal & Tax Services, Upland
- Legal Documents Preparation Services, Upland - Legal Forms
- Legal Guardians, Upland
- Legal Professionals, Upland
- Libraries, Upland
- License Services, Upland
- Life Insurance, Upland
- Lighting Consultants, Upland
- Lighting Consultants & Designers, Upland
- Lighting Contractors, Upland
- Lighting Fixtures & Equipment, Upland
- Limousine Service, Upland
- Linens, Upland
- Lingerie & Underwear for Women, Upland - Bras, Panties, Bustiers, Corsets & More
- Liquor Stores, Upland
- Loans Personal, Upland
- Locks, Upland
- Locksmiths, Upland - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Upland
- Lodging, Upland
- Lodging Services, Upland
- Long Haul Trucking Companies, Upland
- Lumber & Lumber Products, Upland
- Lumber & Lumber Products, Upland
- Lutheran Church, Upland
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