| 1 | A. A. Plastering, Inc.Not reported | Corporation | Not reported | Not reported |
| 2 | A. & C. Wholesale Distributor, Co.Not reported | Corporation | Not reported | Not reported |
| 3 | A.p.c., Inc.Not reported | Corporation | Not reported | Not reported |
| 4 | General Industrial Container CorporationNot reported | Corporation | Not reported | Not reported |
| 5 | Aberdeen Securities Co.Not reported | Corporation | Not reported | Not reported |
| 6 | Ace Poultry CoNot reported | Corporation | Not reported | Not reported |
| 7 | Acme Mill Supplies IncNot reported | Corporation | Not reported | Not reported |
| 8 | Action Automotive, Inc.Not reported | Corporation | Not reported | Not reported |
| 9 | Action Industrial Services, Inc.Not reported | Corporation | Not reported | Not reported |
| 10 | Adam-blanco Associates, Ltd.Not reported | Corporation | Not reported | Not reported |
| 11 | Adele Amusement CompanyNot reported | Corporation | Not reported | Not reported |
| 12 | The Advisory Board of the Delaware County Campus of the Pennsylvania State UniversityNot reported | Nonprofit | Not reported | Not reported |
| 13 | Aftrin FoundationNot reported | Nonprofit | Not reported | Not reported |
| 14 | Aircraft Machinery Products Co. Inc.Not reported | Corporation | Not reported | Not reported |
| 15 | Airtronic Communications Inc.Not reported | Corporation | Not reported | Not reported |
| 16 | Alden, Robert Inc.Not reported | Corporation | Not reported | Not reported |
| 17 | Aldon CorporationNot reported | Corporation | Not reported | Not reported |
| 18 | Algro Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 19 | Delaware County Pregnancy CenterNot reported | Nonprofit | Not reported | Not reported |
| 20 | Apc Closing Corp.Not reported | Corporation | Not reported | Not reported |
| 21 | Almor Associates, Inc.Not reported | Corporation | Not reported | Not reported |
| 22 | Alumni Association of Epsilon Gamma Chapter of Theta Chi Fraternity, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 23 | American Dental Hospital AssociationNot reported | Nonprofit | Not reported | Not reported |
| 24 | American Finance Corporation of AliquippaNot reported | Corporation | Not reported | Not reported |
| 25 | American Finance Corporation of BloomsburgNot reported | Corporation | Not reported | Not reported |
| 26 | American Music CorporationNot reported | Corporation | Not reported | Not reported |
| 27 | American Soccer, Inc.Not reported | Corporation | Not reported | Not reported |
| 28 | American-ukrainian Catholic Citizens ClubNot reported | Nonprofit | Not reported | Not reported |
| 29 | Anderson Enterprises IncNot reported | Corporation | Not reported | Not reported |
| 30 | Antioch Baptist ChurchNot reported | Nonprofit | Not reported | Not reported |
| 31 | Apostolic Faith for All DenominationsNot reported | Nonprofit | Not reported | Not reported |
| 32 | Ardmore CorporationNot reported | Corporation | Not reported | Not reported |
| 33 | Aronco Corp.Not reported | Corporation | Not reported | Not reported |
| 34 | Automotive Operators IncNot reported | Corporation | Not reported | Not reported |
| 35 | Autumn Records, Inc.Not reported | Corporation | Not reported | Not reported |
| 36 | Avon Construction CompanyNot reported | Corporation | Not reported | Not reported |
| 37 | Asphalt Industries,inc.Not reported | Corporation | Not reported | Not reported |
| 38 | Aston Auto Parts, Inc.Not reported | Corporation | Not reported | Not reported |
| 39 | Aston Business AssociationNot reported | Nonprofit | Not reported | Not reported |
| 40 | Aston Manor Civic Association IncNot reported | Nonprofit | Not reported | Not reported |
| 41 | Aston Pharmacy, Inc.Not reported | Corporation | Not reported | Not reported |
| 42 | Aston Realty Co IncNot reported | Corporation | Not reported | Not reported |
| 43 | Aston Valley Playground Association IncNot reported | Nonprofit | Not reported | Not reported |
| 44 | Aston Youth Association IncorporatedNot reported | Nonprofit | Not reported | Not reported |
| 45 | The Athletic Brotherhood AssociationNot reported | Nonprofit | Not reported | Not reported |
| 46 | Atlantic Construction CorporationNot reported | Corporation | Not reported | Not reported |
| 47 | Atlantic Gypsum Products CompanyNot reported | Corporation | Not reported | Not reported |
| 48 | Atlas Vending Corp.Not reported | Corporation | Not reported | Not reported |
| 49 | B & B Auto Parts, Inc.Not reported | Corporation | Not reported | Not reported |
| 50 | B. B. D. Electronics, Inc.Not reported | Corporation | Not reported | Not reported |