| Physicians & Surgeons in Throop, PA (5) | Beauty Salons in Throop, PA (4) |
| General Contractors in Throop, PA (4) | Bars in Throop, PA (3) |
| Churches in Throop, PA (3) | Dancing Instruction in Throop, PA (3) |
| Insurance in Throop, PA (3) | Appliances - Household - Major - Dealers in Throop, PA (2) |
| Automobile Body - Repairing & Painting in Throop, PA (2) | Automobile Dealers - Used Cars in Throop, PA (2) |
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| Attorneys & Lawyers in Throop, PA (1) | Automobile & Truck Brokers in Throop, PA (1) |
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| Electric Contractors in Throop, PA (1) | Electric Equipment - Manufacturers in Throop, PA (1) |
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| Housing Authorities in Throop, PA (1) | Leak Detecting Service in Throop, PA (1) |
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| Plumbing Contractors & Plumbers in Throop, PA (1) | Police Departments in Throop, PA (1) |
| Rental Service - Stores & Yards in Throop, PA (1) | Restaurants in Throop, PA (1) |
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| Tailors in Throop, PA (1) | Television & Radio - Dealers in Throop, PA (1) |
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| Youth Organizations & Centers in Throop, PA (1) |
