| Penobscot Community Health Center | Health Care and Social Assistance | $8,600,000 | $8,701,050 | 500 | N/A |  Research |
| Husson University | Educational Services | $5,965,000 | $6,143,619 | 492 | N/A | Research |
| Community Health and Counseling Services | Health Care and Social Assistance | $4,476,600 | $4,528,827 | 400 | N/A | Research |
| Ohi | Health Care and Social Assistance | $2,414,500 | $2,442,669 | 303 | N/A | Research |
| Village Car Company | Retail Trade | $1,824,600 | $1,848,320 | 149 | $37.5M | Research |
| Eaton Peabody, PA | Professional, Scientific, and Technical Services | $1,783,300 | $1,801,926 | 110 | $26.7M | Research |
| Gaftek INC | Other Services (except Public Administration) | $1,739,217 | $1,753,082 | 106 | $22.8M | Research |
| Gaftek, INC | Other Services (except Public Administration) | $1,739,217 | $1,750,908 | 115 | $24.7M | Research |
| Bangor Publishing Company | Information | $1,663,700 | $1,682,740 | 130 | $21.8M | Research |
| Bangor Publishing Co | Information | $1,634,063 | $1,653,127 | 130 | $21.8M | Research |
| Abm Mechanical INC | Construction | $1,609,690 | $1,629,051 | 136 | $43.0M | Research |
| Abm Mechanical INC | Construction | $1,600,700 | $1,617,552 | 126 | $39.9M | Research |
| C&l Aerospace Holdings LLC | Manufacturing | $1,568,716 | $1,583,458 | 138 | $36.1M | Research |
| Lifeflight of Maine LLC | Health Care and Social Assistance | $1,553,555 | $1,565,336 | 89 | $20.6M | Research |
| Freightliner of Maine INC | Retail Trade | $1,536,370 | $1,545,375 | 124 | $32.4M | Research |
| C&l Aerospace Holdings LLC | Manufacturing | $1,531,991 | $1,539,378 | 147 | $38.5M | Research |
| United Cerebral Palsy of Northeastern Maine | Other Services (except Public Administration) | $1,485,947 | $1,488,634 | 172 | N/A | Research |
| Cmc & Maintenance INC | Administrative and Support and Waste Management | $1,418,440 | $1,429,438 | 107 | $23.2M | Research |
| Whited Ford Truck Center Inc. | Retail Trade | $1,365,700 | $1,374,501 | 108 | $27.2M | Research |
| S.w. Cole Engineering, Inc. | Professional, Scientific, and Technical Services | $1,265,700 | $1,273,365 | 82 | $10.1M | Research |
| Varney Agency INC | Finance and Insurance | $1,256,876 | $1,264,889 | 105 | $53.9M | Research |
| N S Giles Foundations INC | Construction | $1,211,435 | $1,226,578 | 100 | $23.1M | Research |
| Lafayette Portland LLC | Accommodation and Food Services | $1,032,839 | $1,041,216 | 114 | $35.6M | Research |
| Dahl-Chase Diagnostic Services | Health Care and Social Assistance | $1,012,600 | $1,018,929 | 67 | $21.0M | Research |
| Maine Distributors | Wholesale Trade | $1,012,235 | $1,017,943 | 102 | $26.3M | Research |