- Landscaping, San Lorenzo
- Language Schools, San Lorenzo
- Late Night Restaurants, San Lorenzo
- Laundromats & Dry-Cleaning, Coin-Operated, San Lorenzo
- Lawyers & Attorneys, San Lorenzo
- Legal Professionals, San Lorenzo
- Libraries, San Lorenzo
- Life Insurance, San Lorenzo
- Liquor Stores, San Lorenzo
- Loans Check Cashing, San Lorenzo
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- Loans Title Services, San Lorenzo
- Locks, San Lorenzo
- Locksmiths, San Lorenzo - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, San Lorenzo
- Long Haul Trucking Companies, San Lorenzo
- Lp Gas Equipment & Supplies, San Lorenzo
- Lumber & Lumber Products, San Lorenzo
- Lumber Companies, San Lorenzo - Wholesale, Manufacturers & Suppliers
- Lutheran Church, San Lorenzo
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