- Painters, Ashburnham - Painting Contractors
- Passenger Ground Transportation, Ashburnham
- Personal Care, Ashburnham
- Personal Legal Services, Ashburnham
- Personal Services, Ashburnham
- Personal Watercraft Dealers, Ashburnham
- Pet Care Services, Ashburnham
- Pet Grooming & Boarding Services, Ashburnham
- Pharmacy & Drug Stores, Ashburnham - Drugstore - Chemists
- Pharmacy & Pharmaceutical Consultants, Ashburnham
- Pizza Restaurant 1 Of 2, Ashburnham
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- Playground Equipment, Ashburnham - Swing Set, Slides, etc
- Plumbers & Plumbing Contractors, Ashburnham - Installation, Repair & Replace Services
- Plumbing Equipment & Portable Toilet Rental & Leasing, Ashburnham
- Printers Services, Ashburnham
- Product Repair Services, Ashburnham
- Professional, Ashburnham
- Professional Services, Ashburnham
- Propane & Natural Gas, Ashburnham
- Public Accountants, Ashburnham
- Publishing & Printing Manufacturers, Ashburnham
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