- In Home Services, South Abington Township
- Industrial Contractors, South Abington Township
- Industrial Equipment & Machinery, South Abington Township
- Industrial Goods & Products - Hard Goods - Large, South Abington Township
- Industrial Goods & Products - Hard Goods - Small, South Abington Township
- Industrial Goods & Products - Soft - Large & Small, South Abington Township
- Industrial Machinery Manufacturers, South Abington Township
- Industrial Machinery Supplies & Equipment - Leasing & Rental, South Abington Township
- Industrial Pumps, South Abington Township - Centrifugal, Positive Displacement, Submersible, Diaphragm, Hydraulic, Water, Vacuum Pump, etc
- Industrial Supply, Parts & Equipment - Miscellaneous, South Abington Township
- Industry, South Abington Township
- Inspection & Testing Services, South Abington Township
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- Insulation Contractors, South Abington Township - Blown-In, Spray Foam, Batt, Fiberglass, Attic Insulation Installation & Service
- Insurance Advisors, South Abington Township
- Insurance Carriers, South Abington Township
- Insurance Consulting & Information Services, South Abington Township
- Insurance Services, South Abington Township
- Interior Designers, South Abington Township
- Interior Designers & Decorators, South Abington Township
- Internal Medicine Doctors, South Abington Township - Internists Physicians & Surgeons
- Internet Services, South Abington Township
- Investment Services & Advisors, South Abington Township
- Italian Restaurants, South Abington Township
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