| 1 | Ace Lamp and Novelty CompanyNot reported | Corporation | Not reported | Not reported |
| 2 | Aetna Sales & Pipe Service Co IncNot reported | Corporation | Not reported | Not reported |
| 3 | American Institute of Cemetery Administration IncNot reported | Corporation | Not reported | Not reported |
| 4 | Art Rental Gallery IncNot reported | Corporation | Not reported | Not reported |
| 5 | Auto Town Motors, Inc.Not reported | Corporation | Not reported | Not reported |
| 6 | B & W Seating CompanyNot reported | Corporation | Not reported | Not reported |
| 7 | Bell Homes IncorporatedNot reported | Corporation | Not reported | Not reported |
| 8 | Belle Fons Chemical CorporationNot reported | Corporation | Not reported | Not reported |
| 9 | The Bishop Basil Takach Carpatho-russian Historical SocietyNot reported | Nonprofit | Not reported | Not reported |
| 10 | Bouquet Sales Corp.Not reported | Corporation | Not reported | Not reported |
| 11 | Cargo's Candy, Inc.Not reported | Corporation | Not reported | Not reported |
| 12 | Charm Guild IncNot reported | Corporation | Not reported | Not reported |
| 13 | Christian International Inc (the)Not reported | Nonprofit | Not reported | Not reported |
| 14 | Christian Science Visiting Nursing Service, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 15 | Clay Chemical CompanyNot reported | Corporation | Not reported | Not reported |
| 16 | Commercial Photographers Guild of PittsburghNot reported | Nonprofit | Not reported | Not reported |
| 17 | Doctors Diaper Service IncNot reported | Corporation | Not reported | Not reported |
| 18 | Finders Sales CompanyNot reported | Corporation | Not reported | Not reported |
| 19 | Friendly-sons of St PatrickNot reported | Nonprofit | Not reported | Not reported |
| 20 | Gateway Bottling, Inc.Not reported | Corporation | Not reported | Not reported |
| 21 | Gibbs Screw Products CoNot reported | Corporation | Not reported | Not reported |
| 22 | Goldstein & Meyers Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 23 | Gour-matic, Inc.Not reported | Corporation | Not reported | Not reported |
| 24 | Groff Dental Supply Co. , Inc.Not reported | Corporation | Not reported | Not reported |
| 25 | Guaranteed Sanitation, Inc.Not reported | Corporation | Not reported | Not reported |
| 26 | Highland Park Biscuit Co IncNot reported | Corporation | Not reported | Not reported |
| 27 | Hill - Wallisch CompanyNot reported | Corporation | Not reported | Not reported |
| 28 | Houston-eastern, Inc.Not reported | Corporation | Not reported | Not reported |
| 29 | Hunter Oil Sales Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 30 | Interprel CorporationNot reported | Corporation | Not reported | Not reported |
| 31 | Investors Planning Corporation of PennsylvaniaNot reported | Corporation | Not reported | Not reported |
| 32 | Irwin Turnpike Plaza, Inc.Not reported | Corporation | Not reported | Not reported |
| 33 | Juvenile Jobbers IncNot reported | Corporation | Not reported | Not reported |
| 34 | Karel IncNot reported | Corporation | Not reported | Not reported |
| 35 | Laurel Highlands Homes IncNot reported | Corporation | Not reported | Not reported |
| 36 | Leasure LodgeNot reported | Nonprofit | Not reported | Not reported |
| 37 | Losier, Raymond Associates IncNot reported | Corporation | Not reported | Not reported |
| 38 | Loyalhanna Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 39 | M C P Building IncNot reported | Corporation | Not reported | Not reported |
| 40 | Upmc Magee-womens HospitalNot reported | Nonprofit | Not reported | Not reported |
| 41 | Magnum Construction Co.Not reported | Corporation | Not reported | Not reported |
| 42 | Mcgrail-coyne Post No 223 Veterans of Foreign WarsNot reported | Nonprofit | Not reported | Not reported |
| 43 | Molds CorporationNot reported | Corporation | Not reported | Not reported |
| 44 | Nationwide Rent-a-car Company, Inc.Not reported | Corporation | Not reported | Not reported |
| 45 | New Artists of America IncNot reported | Nonprofit | Not reported | Not reported |
| 46 | Offill Associates IncNot reported | Corporation | Not reported | Not reported |
| 47 | One Hour Martinizing IncNot reported | Corporation | Not reported | Not reported |
| 48 | Parents' Association of Mt. Mercy CollegeNot reported | Nonprofit | Not reported | Not reported |
| 49 | Pattern and Wood Shop Supply CompanyNot reported | Corporation | Not reported | Not reported |
| 50 | Pickwick Press Corp.Not reported | Corporation | Not reported | Not reported |