| 1 | Action Building CorporationNot reported | Corporation | Not reported | Not reported |
| 2 | Aero CorporationNot reported | Corporation | Not reported | Not reported |
| 3 | Aero Enterprises Inc.Not reported | Corporation | Not reported | Not reported |
| 4 | Aeronautical Instrument Laboratories, Inc.Not reported | Corporation | Not reported | Not reported |
| 5 | Atco Mechanical & Electrical Contractors, Inc.Not reported | Corporation | Not reported | Not reported |
| 6 | Alex Chevrolet, IncorporatedNot reported | Corporation | Not reported | Not reported |
| 7 | Alfred's Victorian, Inc.Not reported | Corporation | Not reported | Not reported |
| 8 | American Aluminum and Insulation Co. of Philadelphia, Inc.Not reported | Corporation | Not reported | Not reported |
| 9 | Allpax (u.s.a.), Inc.Not reported | Corporation | Not reported | Not reported |
| 10 | Almond Enterprises, Inc.Not reported | Corporation | Not reported | Not reported |
| 11 | American Flyers Airline CorporationNot reported | Corporation | Not reported | Not reported |
| 12 | Atco Mechanical Contractors, Inc.Not reported | Corporation | Not reported | Not reported |
| 13 | Atlantic Maintenance, Inc. of MarylandNot reported | Corporation | Not reported | Not reported |
| 14 | Quality Aluminum Products, Inc.Not reported | Corporation | Not reported | Not reported |
| 15 | B-d-m Company of Pennsylvania, Inc.Not reported | Corporation | Not reported | Not reported |
| 16 | B S Distributors Inc of MiddletownNot reported | Corporation | Not reported | Not reported |
| 17 | Bachman Shoes IncNot reported | Corporation | Not reported | Not reported |
| 18 | Clarke Baridon, Inc.Not reported | Corporation | Not reported | Not reported |
| 19 | Paul R Bashore IncNot reported | Corporation | Not reported | Not reported |
| 20 | Pennsylvania Commuter Airlines, Inc.Not reported | Corporation | Not reported | Not reported |
| 21 | The Bethmann Co., Inc.Not reported | Corporation | Not reported | Not reported |
| 22 | Blake Motors, Inc.Not reported | Corporation | Not reported | Not reported |
| 23 | Bottlers International, Inc.Not reported | Corporation | Not reported | Not reported |
| 24 | Bryn Gweled Civic Association, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 25 | Busman & Rosen Construction CorpNot reported | Corporation | Not reported | Not reported |
| 26 | C & E Refuse Removal Service, Inc.Not reported | Corporation | Not reported | Not reported |
| 27 | Capital Fitting CompanyNot reported | Corporation | Not reported | Not reported |
| 28 | Capitol Campus Real Estate, Inc.Not reported | Corporation | Not reported | Not reported |
| 29 | Central Penn Collie ClubNot reported | Nonprofit | Not reported | Not reported |
| 30 | Christ United Methodist Episcopal Church of Middletown TownshipNot reported | Nonprofit | Not reported | Not reported |
| 31 | Christian Business InstituteNot reported | Nonprofit | Not reported | Not reported |
| 32 | Cleve Farm Packing CompanyNot reported | Corporation | Not reported | Not reported |
| 33 | John E. Clouser Inc.Not reported | Corporation | Not reported | Not reported |
| 34 | Club ManmarNot reported | Nonprofit | Not reported | Not reported |
| 35 | Coble Milk Vending Service IncNot reported | Corporation | Not reported | Not reported |
| 36 | Comfort Masters, Inc.Not reported | Corporation | Not reported | Not reported |
| 37 | Communication Systems Specialists, Inc.Not reported | Corporation | Not reported | Not reported |
| 38 | Conway Painters and Decorators, Inc.Not reported | Corporation | Not reported | Not reported |
| 39 | Country Retreats, Inc.Not reported | Corporation | Not reported | Not reported |
| 40 | Covenco, Inc.Not reported | Corporation | Not reported | Not reported |
| 41 | Harry Cramer Inc.Not reported | Corporation | Not reported | Not reported |
| 42 | Crusade of the Bible MissionNot reported | Nonprofit | Not reported | Not reported |
| 43 | Del Pharmacy IncNot reported | Corporation | Not reported | Not reported |
| 44 | Denny's Music City, Ltd.Not reported | Corporation | Not reported | Not reported |
| 45 | Derry Leasing Corp.Not reported | Corporation | Not reported | Not reported |
| 46 | L. J. Dobson & Bros., Inc.Not reported | Corporation | Not reported | Not reported |
| 47 | Dowhower Excavation & Construction Co.Not reported | Corporation | Not reported | Not reported |
| 48 | Ducks Roost, Inc.Not reported | Nonprofit | Not reported | Not reported |
| 49 | R. C. Earhart, Inc.Not reported | Corporation | Not reported | Not reported |
| 50 | The Eastern Pennsylvania District of the Christian & Missionary AllianceNot reported | Nonprofit | Not reported | Not reported |