- Labor Organizations, Royersford
- Laboratories Medical, Royersford
- Land Surveyor, Royersford - Land Surveying Services
- Landscape Contractors & Designers, Royersford
- Landscape Garden Services, Royersford
- Landscaping, Royersford
- Landscaping Materials & Supplies, Royersford
- Late Night Restaurants, Royersford
- Laundry Self Service, Royersford
- Lawn & Garden Decor & Ornaments, Royersford
- Lawn & Garden Equipment & Supplies, Royersford
- Lawn & Garden Services, Royersford
- Lawn Maintenance Services, Royersford
- Lawn Mower Repair & Blade Sharpening Service, Royersford
- Lawyers & Attorneys, Royersford
- Legal & Tax Services, Royersford
- Legal Professionals, Royersford
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- Libraries, Royersford
- License Services, Royersford
- Life Insurance, Royersford
- Limousine Service, Royersford
- Liquor Stores, Royersford
- Loans Personal, Royersford
- Local & Short Haul Trucking Companies, Royersford
- Locks, Royersford
- Locksmiths, Royersford - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Royersford
- Lodging, Royersford
- Lodging Services, Royersford
- Long Haul Trucking Companies, Royersford
- Lumber & Lumber Products, Royersford
- Lumber & Lumber Products, Royersford
- Lutheran Church, Royersford
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