| 1 | Associated Carpet Stores, IncNot reported | Corporation | Not reported | Not reported |
| 2 | Barbarine and Riccobelli, Inc.Not reported | Corporation | Not reported | Not reported |
| 3 | Barkley Metal Buildings Co.Not reported | Corporation | Not reported | Not reported |
| 4 | Bethesda Land CompanyNot reported | Corporation | Not reported | Not reported |
| 5 | Cavalier Management CompanyNot reported | Corporation | Not reported | Not reported |
| 6 | Coffee-ette of America IncNot reported | Corporation | Not reported | Not reported |
| 7 | Coiffures Di Roma, Inc.Not reported | Corporation | Not reported | Not reported |
| 8 | Lloyd I. Colbert and Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 9 | Curry Distributing, Inc.Not reported | Corporation | Not reported | Not reported |
| 10 | Danny Donuts Inc.Not reported | Corporation | Not reported | Not reported |
| 11 | Development and Work Centers for Adult Trainables, IncorporatedNot reported | Nonprofit | Not reported | Not reported |
| 12 | Echo Drive-in IncNot reported | Corporation | Not reported | Not reported |
| 13 | Felix & Snyder Construction Co IncNot reported | Corporation | Not reported | Not reported |
| 14 | Ferguson Enterprises IncNot reported | Corporation | Not reported | Not reported |
| 15 | Fiore, Allan R., Inc.Not reported | Corporation | Not reported | Not reported |
| 16 | Fish'n Fowl No. Two, Inc.Not reported | Corporation | Not reported | Not reported |
| 17 | Fratangelo, J. L. Inc.Not reported | Corporation | Not reported | Not reported |
| 18 | G. T. V. CorporationNot reported | Corporation | Not reported | Not reported |
| 19 | Horning Progressive AssociationNot reported | Nonprofit | Not reported | Not reported |
| 20 | The House Doctor IncNot reported | Corporation | Not reported | Not reported |
| 21 | Kiwanis Club of Pleasant HillsNot reported | Nonprofit | Not reported | Not reported |
| 22 | Kurtak Mining Company IncNot reported | Corporation | Not reported | Not reported |
| 23 | La Mon Construction, Inc.Not reported | Corporation | Not reported | Not reported |
| 24 | C. C. Larson Sales, Inc.Not reported | Corporation | Not reported | Not reported |
| 25 | The Lebanon Civic Club of West Mifflin BoroughNot reported | Nonprofit | Not reported | Not reported |
| 26 | Lutch Clarence and Son, Inc.Not reported | Corporation | Not reported | Not reported |
| 27 | Mack and Malinsky Builders and Sales, Inc.Not reported | Corporation | Not reported | Not reported |
| 28 | Manta, J L IncNot reported | Corporation | Not reported | Not reported |
| 29 | Mayfair One-hour Dry Cleaners, Inc.Not reported | Corporation | Not reported | Not reported |
| 30 | Maynold Company IncNot reported | Corporation | Not reported | Not reported |
| 31 | Mcwilliams Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 32 | Mcwilliams, James H. Inc.Not reported | Corporation | Not reported | Not reported |
| 33 | Midget Motor Parks, Inc.Not reported | Corporation | Not reported | Not reported |
| 34 | Nadco, Inc.Not reported | Corporation | Not reported | Not reported |
| 35 | National Sales Consultants, Inc.Not reported | Corporation | Not reported | Not reported |
| 36 | National Sales Engineers, Inc.Not reported | Corporation | Not reported | Not reported |
| 37 | Pennsylvania Silent Service System, Inc.Not reported | Corporation | Not reported | Not reported |
| 38 | Pine Run Outboard ClubNot reported | Nonprofit | Not reported | Not reported |
| 39 | Pittsburgh Auto Supply #2, Inc.Not reported | Corporation | Not reported | Not reported |
| 40 | Polyglas CorporationNot reported | Corporation | Not reported | Not reported |
| 41 | Raw Materials IncNot reported | Corporation | Not reported | Not reported |
| 42 | Reliable Equipment Rental IncNot reported | Corporation | Not reported | Not reported |
| 43 | Robert Builders IncorporatedNot reported | Corporation | Not reported | Not reported |
| 44 | Salko Handling Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 45 | Schenecker Builders, Inc.Not reported | Corporation | Not reported | Not reported |
| 46 | Supsura Leasing Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 47 | T. & J. Auto Sales, Inc.Not reported | Corporation | Not reported | Not reported |
| 48 | Taucher Realty Investment CompanyNot reported | Corporation | Not reported | Not reported |
| 49 | The Ten DutchmenNot reported | Nonprofit | Not reported | Not reported |
| 50 | Thomas, William H and Son IncNot reported | Corporation | Not reported | Not reported |