- Labor & Employment Consultants, Osterville
- Laboratories Medical, Osterville
- Land Surveyor, Osterville - Land Surveying Services
- Landlord - Tenant Attorneys & Lawyers, Osterville
- Landlord - Tenant Lawyers & Attorneys, Osterville
- Landlord And Tenant Attorneys & Lawyers, Osterville
- Landscape Contractors & Designers, Osterville
- Landscape Design & Installation, Osterville
- Landscape Garden Services, Osterville
- Landscaping, Osterville
- Lawn & Garden Equipment & Supplies, Osterville
- Lawn & Garden Services, Osterville
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- Lawn & Garden Sprinkler Systems, Osterville
- Lawn Maintenance Services, Osterville
- Lawyers & Attorneys, Osterville
- Lead Paint Testing, Detection & Removal, Osterville
- Legal Professionals, Osterville
- Libraries, Osterville
- Licensed Counselors, Osterville
- Limousine Service, Osterville
- Lingerie & Underwear for Women, Osterville - Bras, Panties, Bustiers, Corsets & More
- Liquor Stores, Osterville
- Lodging, Osterville
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