| 1 | Aal Corp.Not reported | Corporation | Not reported | Not reported |
| 2 | A C T of America, Inc.Not reported | Corporation | Not reported | Not reported |
| 3 | Aero/naut Associates, Inc.Not reported | Corporation | Not reported | Not reported |
| 4 | J. F. Alexander & Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 5 | American Agency Underwriters, Inc.Not reported | Corporation | Not reported | Not reported |
| 6 | American Real Estate & Investment CorporationNot reported | Corporation | Not reported | Not reported |
| 7 | American Solder and Flux Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 8 | Amos Land CorporationNot reported | Corporation | Not reported | Not reported |
| 9 | Anstine, Byron L. P.c.Not reported | Corporation | Not reported | Not reported |
| 10 | Arbor, Inc.Not reported | Corporation | Not reported | Not reported |
| 11 | Aspen-ruggiero Orthopedics AssociatesNot reported | Corporation | Not reported | Not reported |
| 12 | Ator Sales Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 13 | Aurich George W., Inc.Not reported | Corporation | Not reported | Not reported |
| 14 | Automatic Effluent Systems Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 15 | Bms Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 16 | Babe's Garage of Paoli, Inc.Not reported | Corporation | Not reported | Not reported |
| 17 | Bankstream, Inc.Not reported | Corporation | Not reported | Not reported |
| 18 | Barchester, Inc.Not reported | Corporation | Not reported | Not reported |
| 19 | Beaney Transport, LimitedNot reported | Corporation | Not reported | Not reported |
| 20 | P. Becker IncorporatedNot reported | Corporation | Not reported | Not reported |
| 21 | Millstone LodgeNot reported | Nonprofit | Not reported | Not reported |
| 22 | Bienvenue, Inc.Not reported | Corporation | Not reported | Not reported |
| 23 | Bilas, Inc.Not reported | Corporation | Not reported | Not reported |
| 24 | Bitman Medical AssociationNot reported | Corporation | Not reported | Not reported |
| 25 | Black Angus Meats of Paoli, Inc.Not reported | Corporation | Not reported | Not reported |
| 26 | Blair & Son, Inc.Not reported | Corporation | Not reported | Not reported |
| 27 | Blakely Realty Company, Inc.Not reported | Corporation | Not reported | Not reported |
| 28 | Rocco Motorcars, Inc.Not reported | Corporation | Not reported | Not reported |
| 29 | Bonanza Sales Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 30 | Boschan Fred Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 31 | Bradbury-burks, Inc.Not reported | Corporation | Not reported | Not reported |
| 32 | Branagan Builders, Inc.Not reported | Corporation | Not reported | Not reported |
| 33 | Charlie Brown, Inc.Not reported | Corporation | Not reported | Not reported |
| 34 | Wm. C. Buchanan & Company, IncorporatedNot reported | Corporation | Not reported | Not reported |
| 35 | Burroughs Research Credit UnionNot reported | Other | Not reported | Not reported |
| 36 | Business Exchange, Inc.Not reported | Corporation | Not reported | Not reported |
| 37 | The Bustle Stop, Inc.Not reported | Corporation | Not reported | Not reported |
| 38 | Byecroft, Albert E. Inc.Not reported | Corporation | Not reported | Not reported |
| 39 | Campex CorporationNot reported | Corporation | Not reported | Not reported |
| 40 | Canby Lodge CorporationNot reported | Corporation | Not reported | Not reported |
| 41 | Canine Caterers, Inc.Not reported | Corporation | Not reported | Not reported |
| 42 | Chesco Associates Inc.Not reported | Corporation | Not reported | Not reported |
| 43 | Chester County Mall, Inc.Not reported | Corporation | Not reported | Not reported |
| 44 | Conrey, Henry S. Inc., Division of Chester Valley EngineersNot reported | Corporation | Not reported | Not reported |
| 45 | Chester Woods, Inc.Not reported | Corporation | Not reported | Not reported |
| 46 | Cheval CorporationNot reported | Corporation | Not reported | Not reported |
| 47 | The Church of the Redeemer of MalvernNot reported | Nonprofit | Not reported | Not reported |
| 48 | Cine-reynard, Inc.Not reported | Corporation | Not reported | Not reported |
| 49 | Clairemont Development Corp.,inc.Not reported | Corporation | Not reported | Not reported |
| 50 | Calrk Roy C IncNot reported | Corporation | Not reported | Not reported |