- Labels & Tags, Oakland
- Labor & Employment Consultants, Oakland
- Land Surveyor, Oakland - Land Surveying Services
- Landscape Contractors & Designers, Oakland
- Landscape Lighting, Oakland
- Landscaping, Oakland
- Lawn & Garden Equipment & Supplies, Oakland
- Lawn & Garden Services, Oakland
- Lawn Maintenance Services, Oakland
- Lawn Mowers & Power Equipment, Oakland
- Lawyers & Attorneys, Oakland
- Legal Professionals, Oakland
- Lighting Fixtures & Equipment, Oakland
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- Limousine Service, Oakland
- Liquor Stores, Oakland
- Loans Personal, Oakland
- Locks, Oakland
- Locksmiths, Oakland - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Oakland
- Lodging, Oakland
- Long Haul Trucking Companies, Oakland
- Luggage & Accessories , Oakland
- Luggage Wholesale, Oakland
- Lumber & Lumber Products, Oakland
- Lumber & Lumber Products, Oakland
- Lutheran Church, Oakland
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