- Packaging, Shipping & Labeling Services, East Moriches
- Paint & Painting Supplies, East Moriches
- Paint Stores, East Moriches
- Parachute Jumping Instruction & Demonstration, East Moriches
- Passenger Vehicle Dealers, East Moriches
- Paving Contractors - Driveway, Road, Walkway, East Moriches - Installation, Repair & Seal - Asphalt & Concrete Pavers
- Personal Care, East Moriches
- Personal Legal Services, East Moriches
- Personal Services, East Moriches
- Personal Watercraft Dealers, East Moriches
- Pet Care Services, East Moriches
- Pet Grooming & Boarding Services, East Moriches
- Pets Stores & Pet Supplies , East Moriches
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- Pharmacy & Drug Stores, East Moriches - Drugstore - Chemists
- Pizza Restaurant 1 Of 2, East Moriches
- Plant & Tree Nursery, East Moriches
- Plants, Trees, Flowers & Seeds, East Moriches
- Plumbers & Plumbing Contractors, East Moriches - Installation, Repair & Replace Services
- Plumbing - Sewer & Drain Cleaning & Repair, East Moriches
- Presbyterian Churches, East Moriches
- Preschools, East Moriches
- Pressure Washing Services, Equipment & Restoration, East Moriches - Pressure Cleaning Service
- Product Repair Services, East Moriches
- Professional, East Moriches
- Propane & Natural Gas, East Moriches
- Public Accountants, East Moriches
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