| Ssm Industries, INC | Construction | $10,000,000 | $7,586,712 | 355 | $112.3M |  Research |
| Rycon Construction, Inc. | Construction | $10,000,000 | $6,759,572 | 488 | $556.0M | Research |
| Sargent Electric Company | Construction | $10,000,000 | $10,114,795 | 438 | $144.1M | Research |
| Teletracking Technologies, Inc. | Manufacturing | $9,506,790 | $9,893,362 | 376 | $98.4M | Research |
| Armada Partners LP | Professional, Scientific, and Technical Services | $8,608,500 | $8,708,933 | 500 | $51.8M | Research |
| Dickie, Mccamey & Chilcote P.c. | Professional, Scientific, and Technical Services | $7,309,100 | $7,390,515 | 431 | $104.7M | Research |
| Hatch Associates Consultants INC | Professional, Scientific, and Technical Services | $6,923,725 | $7,011,426 | 348 | $42.9M | Research |
| Peak Technical Services, LP | Administrative and Support and Waste Management | $6,824,400 | $6,903,114 | 390 | $61.4M | Research |
| Schneider Downs & Co INC | Professional, Scientific, and Technical Services | $6,696,000 | $8,920,120 | 495 | $157.5M | Research |
| Forms and Surfaces INC | Manufacturing | $6,561,100 | $6,636,917 | 449 | $109.8M | Research |
| Computer Enterprises INC | Professional, Scientific, and Technical Services | $6,547,000 | $6,623,927 | 423 | $87.5M | Research |
| American Refining Group, Inc. | Manufacturing | $6,273,300 | $6,345,791 | 345 | $342.2M | Research |
| Mascaro Construction Company, L.p. | Construction | $6,273,000 | $6,346,185 | 474 | $540.0M | Research |
| Goodwill of Southwestern Pennsylvania | Health Care and Social Assistance | $6,053,000 | $6,132,767 | 500 | $81.0M | Research |
| Orbital Engineering INC | Professional, Scientific, and Technical Services | $6,008,500 | $6,077,474 | 286 | $35.3M | Research |
| Carnegie Institute | Arts, Entertainment, and Recreation | $5,825,916 | $5,870,608 | 500 | $76.0M | Research |
| Wyatt Incorporated | Construction | $5,759,600 | $5,843,754 | 250 | $63.1M | Research |
| Mckamish, Inc. | Construction | $5,750,000 | $5,817,563 | 275 | $87.0M | Research |
| Whole Enchilada INC | Professional, Scientific, and Technical Services | $5,630,100 | $5,761,000 | 500 | $51.8M | Research |
| Cipriani & Werner, P.c. | Professional, Scientific, and Technical Services | $5,576,400 | $5,368,040 | 315 | $76.5M | Research |
| New Mountain Learning, LLC | Information | $5,500,200 | $0 | 196 | $32.9M | Research |
| Fazio Mechanical Services INC | Construction | $5,473,000 | $5,552,663 | 238 | $75.3M | Research |
| Babst Calland Clements & Zomnir, P.c. | Professional, Scientific, and Technical Services | $5,439,600 | $5,503,515 | 223 | $54.2M | Research |
| Kta-Tator INC | Professional, Scientific, and Technical Services | $5,216,500 | $5,274,096 | 255 | $31.4M | Research |
| Microbac Laboratories, Inc. | Professional, Scientific, and Technical Services | $4,936,600 | $4,992,822 | 498 | $100.4M | Research |