| Rmf Engineering Inc. PC | Professional, Scientific, and Technical Services | $6,027,940 | $6,096,972 | 284 | $35.0M |  Research |
| Mechanical Engineering and Construction Corporation | Construction | $2,986,900 | $2,452,418 | 147 | $46.5M | Research |
| Reli Group, Inc. | Professional, Scientific, and Technical Services | $2,806,017 | $2,837,767 | 212 | $43.8M | Research |
| Audacious Inquiry LLC | Information | $2,530,700 | $2,559,662 | 136 | $22.8M | Research |
| Russel Auto Imports, LLC | Retail Trade | $2,021,500 | $2,046,644 | 175 | $44.1M | Research |
| Mechanical Engineering an | Construction | $2,000,000 | $2,015,333 | 149 | $47.1M | Research |
| Woodlawn Motor Coach Inc. | Transportation and Warehousing | $1,936,622 | $1,935,267 | 225 | $86.5M | Research |
| Woodlawn Motor Coach, Inc. | Transportation and Warehousing | $1,828,770 | $1,844,569 | 225 | $51.3M | Research |
| Russel of Catonsville, LLC | Retail Trade | $1,258,400 | $1,274,052 | 89 | $22.4M | Research |
| Aset Partners Corp | Professional, Scientific, and Technical Services | $1,095,800 | $1,108,067 | 82 | $17.0M | Research |
| Digestive Disease Associates LLC | Health Care and Social Assistance | $1,092,993 | $1,105,121 | 71 | $22.3M | Research |
| Clear Resolution Consulting, LLC | Professional, Scientific, and Technical Services | $1,035,500 | $1,046,891 | 91 | $18.8M | Research |
| Institute for Operations Research and the Management Science | Professional, Scientific, and Technical Services | $972,790 | $979,240 | 55 | N/A | Research |
| Institute for Operations Research and the Manageme | Other Services (except Public Administration) | $937,500 | $945,283 | 54 | N/A | Research |
| Zavda Technologies, LLC | Professional, Scientific, and Technical Services | $886,437 | $896,139 | 54 | $11.2M | Research |
| Mount De Sales High School, Inc. | Educational Services | $875,398 | $881,801 | 91 | N/A | Research |
| Antwerpen-Hk, Inc. | Agriculture, Forestry, Fishing and Hunting | $868,560 | $879,197 | 96 | $15.7M | Research |
| Antwerpen Motorcars Ltd | Agriculture, Forestry, Fishing and Hunting | $748,900 | $758,051 | 73 | $11.9M | Research |
| Investigative Consulting Services INC | Administrative and Support and Waste Management | $718,647 | $722,782 | 125 | $18.3M | Research |
| Jarbiz, Inc. | Accommodation and Food Services | $695,100 | $699,194 | 194 | $34.4M | Research |
| Children's Home Inc, the | Health Care and Social Assistance | $656,887 | $661,494 | 72 | N/A | Research |
| Ridgeway Manor, Inc. | Health Care and Social Assistance | $652,095 | $657,133 | 89 | $15.1M | Research |
| Abc Equipment Rental, Inc. | Real Estate and Rental and Leasing | $647,600 | $553,639 | 43 | $19.4M | Research |
| Arsiem Corporation | Educational Services | $640,300 | $644,966 | 45 | $6.0M | Research |
| Drs Miller & Madden PA | Health Care and Social Assistance | $614,972 | $107,022 | 11 | <$5M | Research |