| Government Offices in Houston, PA (4) | Schools in Houston, PA (4) |
| Automobile Body - Repairing & Painting in Houston, PA (3) | Automobile Inspection Stations - New Used in Houston, PA (3) |
| Barbers in Houston, PA (3) | Beauty Salons in Houston, PA (3) |
| Churches in Houston, PA (3) | General Contractors in Houston, PA (3) |
| Accountants in Houston, PA (2) | Bottlers in Houston, PA (2) |
| Convenience Stores in Houston, PA (2) | Foods - Carry Out in Houston, PA (2) |
| Machine Shops in Houston, PA (2) | Painters in Houston, PA (2) |
| Roofing Contractors & Roofers in Houston, PA (2) | Air Conditioning Contractors & Systems in Houston, PA (1) |
| Apartments in Houston, PA (1) | Architects in Houston, PA (1) |
| Art Instruction & Schools in Houston, PA (1) | Artists - Fine Arts in Houston, PA (1) |
| Asphalt Paving Contractor in Houston, PA (1) | Associations in Houston, PA (1) |
| Attorneys & Lawyers in Houston, PA (1) | Audio - Visual Consultants in Houston, PA (1) |
| Auto Glass Replacement Ret & Install Garage Doors & Ret in Houston, PA (1) | Automobile Dealers - New Cars in Houston, PA (1) |
| Automobile Dealers - Used Cars in Houston, PA (1) | Automobile Lubrication Service in Houston, PA (1) |
| Automobile Repairing & Service in Houston, PA (1) | Bakers - Retail in Houston, PA (1) |
| Bars in Houston, PA (1) | Beauty Salons - Equipment & Supplies in Houston, PA (1) |
| Building Contractors in Houston, PA (1) | Business Forms & Systems (Wholesale) in Houston, PA (1) |
| Cabinet Makers in Houston, PA (1) | Carwash in Houston, PA (1) |
| Child Care Service in Houston, PA (1) | Cleaners in Houston, PA (1) |
| Clergy in Houston, PA (1) | Clubs in Houston, PA (1) |
| Coal Mining & Shipping in Houston, PA (1) | Controls Control Systs Regulators (Whol) in Houston, PA (1) |
| Drilling in Houston, PA (1) | Drivers License Office in Houston, PA (1) |
| Dry Wall Contractors in Houston, PA (1) | Electric Contractors in Houston, PA (1) |
| Electrical Contractor in Houston, PA (1) | Elementary Secondary School in Houston, PA (1) |
| Engineers - Electrical in Houston, PA (1) | Engineers - Environmental in Houston, PA (1) |
| Florists - Retail in Houston, PA (1) | Funeral Home in Houston, PA (1) |
| Gasoline Station Construction Service in Houston, PA (1) | General Warehouse Storage in Houston, PA (1) |
| Geological Consultants in Houston, PA (1) | Grocery - Retail in Houston, PA (1) |
| Heating Contractors in Houston, PA (1) | Hospices in Houston, PA (1) |
| Hotel Motel Operation in Houston, PA (1) | Hydraulic Equipment & Supplies (Whol) in Houston, PA (1) |
| Ice Cream & Frozen Desserts - Distributors in Houston, PA (1) | Insurance Consultants & Advisors in Houston, PA (1) |
| Janitor Service in Houston, PA (1) | Laboratories - Dental in Houston, PA (1) |
| Landscape Contractors in Houston, PA (1) | Libraries - Public in Houston, PA (1) |
| Medical Alarms (Wholesale) in Houston, PA (1) | Membership Sport Recreation Club in Houston, PA (1) |
| Mfg Concrete Blocks in Houston, PA (1) | News Dealer Newsstand in Houston, PA (1) |
| Newspapers (Publishers) in Houston, PA (1) | Nursing Personal Care in Houston, PA (1) |
| Office & Desk Space - Rental in Houston, PA (1) | Packaging Machinery - Wholesale in Houston, PA (1) |
| Painting Contractors in Houston, PA (1) | Parking Area Lots Maintenance & Marking in Houston, PA (1) |
| Personal Care Homes in Houston, PA (1) | Pest And Termite Control in Houston, PA (1) |
| Pest Control in Houston, PA (1) | Pet Washing & Grooming in Houston, PA (1) |
| Photographers - Portrait in Houston, PA (1) | Physicians & Doctors in Houston, PA (1) |
| Post Offices in Houston, PA (1) | Primary Metal Products Manufacturers in Houston, PA (1) |
| Printers in Houston, PA (1) | Printing Brokers in Houston, PA (1) |
| Publishers in Houston, PA (1) | Pumps - Retail in Houston, PA (1) |
| Real Estate Agent in Houston, PA (1) | Rehabilitation Services in Houston, PA (1) |
| Rental Agencies in Houston, PA (1) | Retail Shops in Houston, PA (1) |
| Retirement Communities & Homes in Houston, PA (1) | Retreat Houses in Houston, PA (1) |
| Screen Printing in Houston, PA (1) | Sewing Machines - Industrial Coml (Whol) in Houston, PA (1) |
| Social Service & Welfare Organizations in Houston, PA (1) | Social Services in Houston, PA (1) |
| State Bank in Houston, PA (1) | Storage - Household & Commercial in Houston, PA (1) |
