| 1 | Buchanan Sales Company, Inc.Not reported | Corporation | Not reported | Not reported |
| 2 | Aero Disposal CorporationNot reported | Corporation | Not reported | Not reported |
| 3 | Allison Park Real Estate CompanyNot reported | Corporation | Not reported | Not reported |
| 4 | Alta Fuels, Inc.Not reported | Corporation | Not reported | Not reported |
| 5 | Armagh Forest Estates, Inc.Not reported | Corporation | Not reported | Not reported |
| 6 | Wendell August Forge IncorporatedNot reported | Corporation | Not reported | Not reported |
| 7 | B & B Wrecking & Excavating, Inc.Not reported | Corporation | Not reported | Not reported |
| 8 | M. F. R. CorporationNot reported | Corporation | Not reported | Not reported |
| 9 | The Bakerstown United Methodist ChurchNot reported | Nonprofit | Not reported | Not reported |
| 10 | Bethany Lutheran Church of the North HillsNot reported | Nonprofit | Not reported | Not reported |
| 11 | Bio-aide, IncorporatedNot reported | Corporation | Not reported | Not reported |
| 12 | Blue Bird Bus Sales of Pittsburgh, Inc.Not reported | Corporation | Not reported | Not reported |
| 13 | Bon-turn, Inc.Not reported | Corporation | Not reported | Not reported |
| 14 | Boyas Excavating, Inc.Not reported | Corporation | Not reported | Not reported |
| 15 | Broge Masonry CorporationNot reported | Corporation | Not reported | Not reported |
| 16 | Earth Works, Inc.Not reported | Corporation | Not reported | Not reported |
| 17 | Butler Auto Recon Center, Inc.Not reported | Corporation | Not reported | Not reported |
| 18 | C. H. J., Inc.Not reported | Corporation | Not reported | Not reported |
| 19 | Central Beagle Club, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 20 | Christian Science Society, Hampton, PennsylvaniaNot reported | Nonprofit | Not reported | Not reported |
| 21 | S. P. Foods CorporationNot reported | Corporation | Not reported | Not reported |
| 22 | Cooperative of North PittsburghNot reported | Corporation | Not reported | Not reported |
| 23 | The Cross Roads Presbyterian Church of Pine TownshipNot reported | Nonprofit | Not reported | Not reported |
| 24 | D & D Supply, Inc.Not reported | Corporation | Not reported | Not reported |
| 25 | Data Swift, Inc.Not reported | Corporation | Not reported | Not reported |
| 26 | Delta Leasing and Hauling, Inc.Not reported | Corporation | Not reported | Not reported |
| 27 | Deutsch Poultry Processing Co IncNot reported | Corporation | Not reported | Not reported |
| 28 | E & R Meter Repair Company, Inc.Not reported | Corporation | Not reported | Not reported |
| 29 | East Village Properties, Inc.Not reported | Corporation | Not reported | Not reported |
| 30 | Edifice, Inc.Not reported | Corporation | Not reported | Not reported |
| 31 | European Auto Service, Inc.Not reported | Corporation | Not reported | Not reported |
| 32 | Falconware Scientific Glassblowing, Inc.Not reported | Corporation | Not reported | Not reported |
| 33 | Bon Tool CompanyNot reported | Corporation | Not reported | Not reported |
| 34 | First Quality, Ltd.Not reported | Corporation | Not reported | Not reported |
| 35 | Fish & Game Frontiers, Inc.Not reported | Corporation | Not reported | Not reported |
| 36 | 517 Shady Avenue, Inc.Not reported | Corporation | Not reported | Not reported |
| 37 | Fredon, Inc.Not reported | Corporation | Not reported | Not reported |
| 38 | Roy Friend Pontiac, Inc.Not reported | Corporation | Not reported | Not reported |
| 39 | West Deer Bible ChurchNot reported | Nonprofit | Not reported | Not reported |
| 40 | Gafia IncorporatedNot reported | Corporation | Not reported | Not reported |
| 41 | Gateway Lear Jet Sales, Inc.Not reported | Corporation | Not reported | Not reported |
| 42 | General Disposal, Inc.Not reported | Corporation | Not reported | Not reported |
| 43 | Gibsonia Excavating, Inc.Not reported | Corporation | Not reported | Not reported |
| 44 | Gibsonia Truck CorporationNot reported | Corporation | Not reported | Not reported |
| 45 | Louis C. Glasso, Inc.Not reported | Corporation | Not reported | Not reported |
| 46 | Golf Repair Center, Inc.Not reported | Corporation | Not reported | Not reported |
| 47 | Grandy Wright IncorporatedNot reported | Corporation | Not reported | Not reported |
| 48 | Hampton Athletic Association, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 49 | Handlers, Inc.Not reported | Corporation | Not reported | Not reported |
| 50 | Tom Henry Chevrolet Inc.Not reported | Corporation | Not reported | Not reported |