| 1 | Aaco Contracting Co.Not reported | Corporation | Not reported | Not reported |
| 2 | Aaco Mechanical Contracting CompanyNot reported | Corporation | Not reported | Not reported |
| 3 | Access Products, Inc.Not reported | Corporation | Not reported | Not reported |
| 4 | Ppc Center, Inc.Not reported | Corporation | Not reported | Not reported |
| 5 | Edward P Allison Co IncNot reported | Corporation | Not reported | Not reported |
| 6 | Arco Poultry Equipment CorpNot reported | Corporation | Not reported | Not reported |
| 7 | Aaco, Inc.Not reported | Corporation | Not reported | Not reported |
| 8 | B & E Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 9 | B & S Distributors Inc. of HarrisburgNot reported | Corporation | Not reported | Not reported |
| 10 | B. T. CorporationNot reported | Corporation | Not reported | Not reported |
| 11 | Barmay Stores, Inc.Not reported | Corporation | Not reported | Not reported |
| 12 | Beacon Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 13 | Beacon Light Golf Center, Inc.Not reported | Corporation | Not reported | Not reported |
| 14 | Beaver & Ford, Inc.Not reported | Corporation | Not reported | Not reported |
| 15 | Bender & Bender AssociatesNot reported | Corporation | Not reported | Not reported |
| 16 | Berzkalns + Hitzelberger, Inc.Not reported | Corporation | Not reported | Not reported |
| 17 | Benroc Construction, Inc.Not reported | Corporation | Not reported | Not reported |
| 18 | Biondi, T. H. Inc.Not reported | Corporation | Not reported | Not reported |
| 19 | Scott Bros. Racing, Inc.Not reported | Corporation | Not reported | Not reported |
| 20 | Blue Boy Products, Inc.Not reported | Corporation | Not reported | Not reported |
| 21 | Bradford Construction Corp.Not reported | Corporation | Not reported | Not reported |
| 22 | Brandywine Associates IncorporatedNot reported | Corporation | Not reported | Not reported |
| 23 | Brandywine Grange No. 60Not reported | Nonprofit | Not reported | Not reported |
| 24 | Brandywine Kitchen and Appliances,inc.Not reported | Corporation | Not reported | Not reported |
| 25 | Brandywine Machine Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 26 | Brandywine Paper CorporationNot reported | Corporation | Not reported | Not reported |
| 27 | Brandywine Realty Builders & Developers, Inc.Not reported | Corporation | Not reported | Not reported |
| 28 | Brandywine Waste Paper CorporationNot reported | Corporation | Not reported | Not reported |
| 29 | Broad Run Services CorporationNot reported | Nonprofit | Not reported | Not reported |
| 30 | C-b Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 31 | C. O. A. Pallets, Inc.Not reported | Corporation | Not reported | Not reported |
| 32 | Caffey, M. M. Inc.Not reported | Corporation | Not reported | Not reported |
| 33 | Calvary Christian FellowshipNot reported | Nonprofit | Not reported | Not reported |
| 34 | Centennial Foundation, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 35 | Century Auto Sales, Inc.Not reported | Corporation | Not reported | Not reported |
| 36 | Char-s Sports, Inc.Not reported | Corporation | Not reported | Not reported |
| 37 | Charles News Agency, Inc.Not reported | Corporation | Not reported | Not reported |
| 38 | Chester County Medical AssociatesNot reported | Corporation | Not reported | Not reported |
| 39 | Chester County Motor Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 40 | Chester Valley Homes, Inc.Not reported | Corporation | Not reported | Not reported |
| 41 | The Chester Valley Press IncNot reported | Corporation | Not reported | Not reported |
| 42 | The Clothes Carriage, Inc.Not reported | Corporation | Not reported | Not reported |
| 43 | Concrete Materials and Construction CompanyNot reported | Corporation | Not reported | Not reported |
| 44 | Schaefer Brothers, Inc.Not reported | Corporation | Not reported | Not reported |
| 45 | Cooper and Reese, Inc.Not reported | Corporation | Not reported | Not reported |
| 46 | Stone Cooper Associates, Inc., a Close CorporationNot reported | Corporation | Not reported | Not reported |
| 47 | Country Castles,incNot reported | Corporation | Not reported | Not reported |
| 48 | County Volvo, Inc.Not reported | Corporation | Not reported | Not reported |
| 49 | Coy Oil Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 50 | Crawford's Auto Center, Inc.Not reported | Corporation | Not reported | Not reported |