- Laboratories Dental, Manville
- Laboratories Medical, Manville
- Land Surveyor, Manville - Land Surveying Services
- Landscape Contractors & Designers, Manville
- Landscaping, Manville
- Laundry Self Service, Manville
- Lawn & Garden Equipment & Supplies, Manville
- Lawn & Garden Services, Manville
- Lawn Maintenance Services, Manville
- Lawyers & Attorneys, Manville
- Legal Professionals, Manville
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- Libraries, Manville
- Lighting Consultants & Designers, Manville
- Limousine Service, Manville
- Liquor Stores, Manville
- Live Theaters, Manville
- Loans Personal, Manville
- Locks, Manville
- Locksmiths, Manville - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Manville
- Long Haul Trucking Companies, Manville
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