| Antietam Management Corp | Manufacturing | $470,867 | $475,434 | 21 | $5.5M |  Research |
| Antietam Management Corp | Wholesale Trade | $470,800 | $476,269 | 29 | $8.9M | Research |
| Allied Orthopedic Associates, Inc. | Health Care and Social Assistance | $435,500 | $439,187 | 21 | $6.6M | Research |
| Trappe Tavern INC | Accommodation and Food Services | $347,400 | $350,141 | 50 | $8.9M | Research |
| Trappe Fire Co No 1 of Trappe PA | Public Administration | $343,345 | $345,930 | 47 | N/A | Research |
| Patrick J Kelly Insurance Group INC | Finance and Insurance | $248,500 | $250,338 | 22 | $11.3M | Research |
| David Digiallorenzo Dmd | Health Care and Social Assistance | $245,735 | $247,452 | 11 | <$5M | Research |
| Mat Site Management Pa, LLC | Administrative and Support and Waste Management | $233,000 | $235,011 | 27 | $5.8M | Research |
| Animal Medical Center Inc. | Professional, Scientific, and Technical Services | $200,177 | $202,634 | 20 | <$5M | Research |
| Mat Site Management PA LLC | Administrative and Support and Waste Management | $191,440 | $192,825 | 27 | $5.8M | Research |
| Lines Construction | Construction | $176,506 | $179,378 | 13 | <$5M | Research |
| Childrens Dentistry of Trappe LLC | Health Care and Social Assistance | $171,908 | $174,409 | 34 | $7.9M | Research |
| Paradigm Creations Inc. | Other Services (except Public Administration) | $162,100 | $164,161 | 26 | <$5M | Research |
| Paradigm Creations INC | Other Services (except Public Administration) | $149,900 | $150,532 | 26 | <$5M | Research |
| Zook Industries LLC | Administrative and Support and Waste Management | $148,400 | $149,510 | 31 | $6.7M | Research |
| Zook Industries LLC | Administrative and Support and Waste Management | $148,400 | $149,628 | 35 | $7.6M | Research |
| Salvo General Contracting, LLC | Construction | $138,300 | $139,444 | 11 | <$5M | Research |
| Springford Castings INC | Manufacturing | $133,306 | $134,559 | 13 | <$5M | Research |
| Salvo General Contracting, LLC | Construction | $116,253 | $117,078 | 15 | <$5M | Research |
| Trappe Family Dental Associates | Health Care and Social Assistance | $114,400 | $115,165 | 10 | <$5M | Research |
| King Laird PC | Professional, Scientific, and Technical Services | $111,700 | $111,580 | 9 | <$5M | Research |
| Bartlett Pro Seal INC | Construction | $110,500 | $111,218 | 11 | <$5M | Research |
| Etb Services, Inc. | Professional, Scientific, and Technical Services | $110,149 | $111,263 | 8 | <$5M | Research |
| A-1 Specialty Construction, INC | Construction | $109,900 | $110,651 | 10 | $11.4M | Research |
| Trappe Family Dental Associates LLC | Health Care and Social Assistance | $108,926 | $109,881 | 10 | <$5M | Research |