- Laboratories Medical, Sunnyvale
- Lamp Shades, Sunnyvale
- Lamps & Lamp Shades Retail, Sunnyvale - Desk, Table & Floor Lamps
- Landscape Contractors & Designers, Sunnyvale
- Landscape Garden Services, Sunnyvale
- Landscaping, Sunnyvale
- Lawn & Garden Services, Sunnyvale
- Lawn Maintenance Services, Sunnyvale
- Lawyers & Attorneys, Sunnyvale
- Legal Professionals, Sunnyvale
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- Libraries, Sunnyvale
- Life Insurance, Sunnyvale
- Livestock, Sunnyvale
- Loans Personal, Sunnyvale
- Locksmiths, Sunnyvale - Residence, Commercial, Safe & Auto Car Locksmith
- Lodging, Sunnyvale
- Long Haul Trucking Companies, Sunnyvale
- Lumber & Lumber Products, Sunnyvale
- Lumber & Lumber Products, Sunnyvale
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