| Packaging Services of MD INC | Manufacturing | $3,330,700 | $1,647,724 | 290 | $287.6M |  Research |
| Bowman Sales & Equipment, Inc. | Real Estate and Rental and Leasing | $2,447,900 | $2,475,507 | 187 | $84.5M | Research |
| Homewood at Williamsport | Other Services (except Public Administration) | $1,961,812 | $1,973,744 | 208 | $39.7M | Research |
| Maryland Paper Company Limited Partnership | Manufacturing | $1,400,000 | $1,416,372 | 144 | $142.8M | Research |
| Bowman Hospitality & Convenience Group INC | Accommodation and Food Services | $1,222,484 | $1,233,000 | 196 | $61.3M | Research |
| Psi Packaging Services, Inc. | Manufacturing | $1,111,400 | $1,121,217 | 52 | $51.6M | Research |
| Noel's Fire Protection Management Services INC | Public Administration | $1,012,600 | $1,023,120 | 78 | N/A | Research |
| Bowman Hospitality & Convenience Group, INC | Real Estate and Rental and Leasing | $851,100 | $858,098 | 57 | $10.4M | Research |
| Maccaferri INC | Manufacturing | $769,968 | $775,664 | 47 | $13.1M | Research |
| Cedar Ridge Children's Home & School, Inc. | Health Care and Social Assistance | $731,300 | $741,258 | 87 | N/A | Research |
| Hagerstown Canteen Service, INC | Retail Trade | $573,848 | $578,885 | 39 | $9.5M | Research |
| County Medical Transport, Inc. | Health Care and Social Assistance | $411,280 | $416,148 | 98 | $22.7M | Research |
| Maryland Glass Tech, LLC | Manufacturing | $356,260 | $350,056 | 26 | $25.8M | Research |
| Bowman Development Corporation | Real Estate and Rental and Leasing | $338,363 | $340,223 | 23 | <$5M | Research |
| Regional Fire Protection, LLC | Construction | $300,600 | $302,729 | 27 | $8.6M | Research |
| Extra Mile Trucking Inc. | Transportation and Warehousing | $296,700 | $300,358 | 26 | $5.2M | Research |
| Potomac Valley Distribution, Inc. | Wholesale Trade | $222,595 | $225,204 | 7 | <$5M | Research |
| Gerald Taylor Co., Inc. | Construction | $182,802 | $184,569 | 18 | $6.7M | Research |
| Samp USA INC | Wholesale Trade | $165,007 | $166,558 | 8 | <$5M | Research |
| Conococheague Tribe No 84, Improved Order of Red Men, Incorp | Other Services (except Public Administration) | $163,800 | $165,838 | 50 | $9.6M | Research |
| DC Casework INC | Manufacturing | $147,210 | $149,299 | 16 | <$5M | Research |
| Stay Home Senior Services of Maryland, Inc. | Health Care and Social Assistance | $144,378 | $144,931 | 26 | <$5M | Research |
| Tana Plumbing & Heating, LLC | Construction | $138,300 | $140,059 | 17 | $5.4M | Research |
| Antietam Metals, LLC | Manufacturing | $127,645 | $128,652 | 10 | <$5M | Research |
| Leiters' Fine Catering INC | Accommodation and Food Services | $125,902 | $127,126 | 45 | $8.4M | Research |