- Labor Organizations, Brookville
- Land Surveyor, Brookville - Land Surveying Services
- Landscape Contractors & Designers, Brookville
- Landscaping, Brookville
- Lawn & Garden Chemicals, Insecticides & Fertilizers, Brookville
- Lawn & Garden Equipment & Supplies, Brookville
- Lawn & Garden Services, Brookville
- Lawn Maintenance Services, Brookville
- Lawn Mowers & Power Equipment, Brookville
- Lawyers & Attorneys, Brookville
- Legal Professionals, Brookville
- Libraries, Brookville
- License Services, Brookville
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- Liquor Stores, Brookville
- Livestock, Brookville
- Loans Personal, Brookville
- Local & Short Haul Trucking Companies, Brookville
- Lodging, Brookville
- Log Homes - Log Cabins Builders, Brookville - Building Contractors
- Loggers, Brookville
- Logging Contractors & Supplies, Brookville
- Long Haul Trucking Companies, Brookville
- Lumber & Wood Products Manufacturers, Brookville
- Lumber Brokers, Brookville
- Lumber Companies, Brookville - Wholesale, Manufacturers & Suppliers
- Lutheran Church, Brookville
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