- Laboratories X-Ray, Newberg
- Laboratory Equipment Repair & Service, Newberg
- Land Surveyor, Newberg - Land Surveying Services
- Landscape Contractors & Designers, Newberg
- Landscape Garden Services, Newberg
- Landscaping, Newberg
- Landscaping Materials & Supplies, Newberg
- Laser Equipment Repair & Service, Newberg
- Laser Therapy Clinics, Newberg
- Late Night Restaurants, Newberg
- Lawn & Garden Equipment & Supplies, Newberg
- Lawn & Garden Services, Newberg
- Lawn & Garden Sprinkler Systems, Newberg
- Lawn & Garden Supply, Newberg
- Lawn Maintenance Services, Newberg
- Lawn Mowers & Power Equipment, Newberg
- Lawyers & Attorneys, Newberg
- Leather Goods Stores & Dealers, Newberg
- Legal & Tax Services, Newberg
- Legal Professionals, Newberg
- Libraries, Newberg
- Life Insurance, Newberg
- Liquid & Bulk Storage, Newberg
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- Liquor & Beer Manufacturers, Newberg
- Liquor Stores, Newberg
- Live Theaters, Newberg
- Livestock, Newberg
- Livestock Equipment & Supplies, Newberg
- Livestock Trailers, Newberg
- Llama & Alpaca Farms, Newberg
- Llama Services, Newberg
- Loans Personal, Newberg
- Locks, Newberg
- Locksmiths, Newberg - Residence, Commercial, Safe & Auto Car Locksmith
- Locksmiths Equipment & Supplies, Newberg
- Lodging, Newberg
- Lodging Services, Newberg
- Long Haul Trucking Companies, Newberg
- Lubricating Oils , Newberg - Motor Oil
- Lumber & Lumber Products, Newberg
- Lumber & Lumber Products, Newberg
- Lumber & Wood Products Manufacturers, Newberg
- Lumber Brokers, Newberg
- Lumber Companies, Newberg - Wholesale, Manufacturers & Suppliers
- Lutheran Church, Newberg
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