| 1 | Ace Wire Spring & Form Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 2 | Acme Clay Products, Inc.Not reported | Corporation | Not reported | Not reported |
| 3 | Add-a-room Corp.Not reported | Corporation | Not reported | Not reported |
| 4 | Agsco Equipment CorporationNot reported | Corporation | Not reported | Not reported |
| 5 | The Air Rite Golf CompanyNot reported | Corporation | Not reported | Not reported |
| 6 | Airlight CorporationNot reported | Corporation | Not reported | Not reported |
| 7 | Airlines Freight, Inc.Not reported | Corporation | Not reported | Not reported |
| 8 | Aironics, Inc.Not reported | Corporation | Not reported | Not reported |
| 9 | The Aitken CorporationNot reported | Corporation | Not reported | Not reported |
| 10 | All-state Industries, Inc.Not reported | Corporation | Not reported | Not reported |
| 11 | American Russian Orthodox Club of Mckees RocksNot reported | Nonprofit | Not reported | Not reported |
| 12 | Arrow Sash Doors & Plywood IncNot reported | Corporation | Not reported | Not reported |
| 13 | Automobile Operators Union, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 14 | Ascension Lutheran Church, Robinson TownshipNot reported | Nonprofit | Not reported | Not reported |
| 15 | The Associated Boys' Clubs of Western Pennsylvania, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 16 | Associated Electrical Contractors & WorkersNot reported | Nonprofit | Not reported | Not reported |
| 17 | Associated General Agency IncNot reported | Corporation | Not reported | Not reported |
| 18 | Badolato, Inc.Not reported | Corporation | Not reported | Not reported |
| 19 | Bencho's Aurora, Inc.Not reported | Corporation | Not reported | Not reported |
| 20 | Taravella, Inc.Not reported | Corporation | Not reported | Not reported |
| 21 | Better Homes Construction Co IncNot reported | Corporation | Not reported | Not reported |
| 22 | Betts' Bar, Inc.Not reported | Corporation | Not reported | Not reported |
| 23 | Big Ten Hunting and Fishing ClubNot reported | Nonprofit | Not reported | Not reported |
| 24 | Bill's Trucking, Inc.Not reported | Corporation | Not reported | Not reported |
| 25 | Bon-tre Inc.Not reported | Corporation | Not reported | Not reported |
| 26 | Bonner Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 27 | Bouclair Stretch Sewing International, Inc.Not reported | Corporation | Not reported | Not reported |
| 28 | Bowling Proprietors Association of Greater PittsburghNot reported | Nonprofit | Not reported | Not reported |
| 29 | Brady Land CompanyNot reported | Corporation | Not reported | Not reported |
| 30 | Bridickas - Groetzinger, Inc.Not reported | Corporation | Not reported | Not reported |
| 31 | Broadway Leasing CorporationNot reported | Corporation | Not reported | Not reported |
| 32 | Broadway Chrysler Inc.Not reported | Corporation | Not reported | Not reported |
| 33 | Broadway Specialties, Inc.Not reported | Corporation | Not reported | Not reported |
| 34 | Frank Bryan, Inc.Not reported | Corporation | Not reported | Not reported |
| 35 | Burgunder Motors, Inc.Not reported | Corporation | Not reported | Not reported |
| 36 | Butler Gas Products CompanyNot reported | Corporation | Not reported | Not reported |
| 37 | Cdp CorporationNot reported | Corporation | Not reported | Not reported |
| 38 | The Cable ClubNot reported | Nonprofit | Not reported | Not reported |
| 39 | Cable Picture Systems Inc.Not reported | Corporation | Not reported | Not reported |
| 40 | Carlsam Enterprises IncNot reported | Corporation | Not reported | Not reported |
| 41 | Carson Steel CompanyNot reported | Corporation | Not reported | Not reported |
| 42 | Castle Roc Sportmen's ClubNot reported | Nonprofit | Not reported | Not reported |
| 43 | Caughey - Stover, Inc.Not reported | Corporation | Not reported | Not reported |
| 44 | Central Keypunch Services, Inc.Not reported | Corporation | Not reported | Not reported |
| 45 | Chamber of Commerce of Stowe Township Kennedy Township and Mckees RocksNot reported | Nonprofit | Not reported | Not reported |
| 46 | Chartiers Ave Business Men's AssociationNot reported | Nonprofit | Not reported | Not reported |
| 47 | Chartiers City Rod & Gun Club of Chartiers City Pittsburgh 4 PaNot reported | Nonprofit | Not reported | Not reported |
| 48 | Chartiers Equipment CompanyNot reported | Corporation | Not reported | Not reported |
| 49 | Chartiers Industries, Inc.Not reported | Corporation | Not reported | Not reported |
| 50 | Chartiers Temple AssociationNot reported | Nonprofit | Not reported | Not reported |