| Zuckerman Speader LLP | Professional, Scientific, and Technical Services | $3,402,400 | $3,440,898 | 150 | $36.5M |  Research |
| Rwd Consulting, LLC | Professional, Scientific, and Technical Services | $3,380,600 | $3,421,918 | 291 | $79.5M | Research |
| Van Ness Feldman LLP | Professional, Scientific, and Technical Services | $3,363,100 | $3,417,657 | 168 | $40.8M | Research |
| Home Builders Institute | Educational Services | $3,352,100 | $3,391,022 | 260 | N/A | Research |
| National Trust for Historic Preservation in the United State | Arts, Entertainment, and Recreation | $3,330,985 | $3,371,504 | 293 | N/A | Research |
| Pro Air INC | Construction | $3,317,400 | $3,355,919 | 216 | $68.3M | Research |
| Trade Center Management Associates LLC | Real Estate and Rental and Leasing | $3,311,000 | $3,348,985 | 330 | $49.5M | Research |
| New America Foundation | Professional, Scientific, and Technical Services | $3,301,828 | $3,339,707 | 155 | N/A | Research |
| The Chronicle of Higher Education | Information | $3,281,300 | $3,750,129 | 163 | $27.4M | Research |
| Int'l Assoc of Bridge Structural Ornamental and Reinforcing | Other Services (except Public Administration) | $3,272,840 | $3,293,295 | 103 | N/A | Research |
| Optical Society of America Incorporated, the | Other Services (except Public Administration) | $3,250,745 | $3,290,645 | 154 | N/A | Research |
| Stoddard Baptist Global Care, INC | Health Care and Social Assistance | $3,245,900 | $3,280,227 | 402 | N/A | Research |
| Oblates Service Corp | Other Services (except Public Administration) | $3,220,000 | $3,258,022 | 338 | N/A | Research |
| Caplin & Drysdale Chartered | Professional, Scientific, and Technical Services | $3,192,541 | $3,230,677 | 107 | $26.0M | Research |
| W. L. Gary Company, Incorporated | Construction | $3,153,115 | $3,192,335 | 163 | $51.6M | Research |
| The Lab School of Washington | Educational Services | $3,099,943 | $3,135,274 | 215 | N/A | Research |
| Cohen Milstein Sellers & Toll Pllc | Professional, Scientific, and Technical Services | $3,099,524 | $3,135,255 | 185 | $45.0M | Research |
| Dkw Communications, INC | Professional, Scientific, and Technical Services | $3,098,200 | $3,134,275 | 168 | $34.7M | Research |
| American Councils for International Educ | Educational Services | $3,063,185 | $759,349 | 453 | N/A | Research |
| Joseph J Magnolia, Inc. | Construction | $3,061,027 | $3,101,533 | 194 | $61.4M | Research |
| Midatlantic Realty Partners, LLC | Real Estate and Rental and Leasing | $3,053,900 | $3,090,207 | 146 | $26.7M | Research |
| Tcg, Inc. | Professional, Scientific, and Technical Services | $3,052,875 | $0 | 134 | $27.7M | Research |
| Community of Hope, Inc. | Health Care and Social Assistance | $3,032,475 | $3,065,916 | 262 | N/A | Research |
| Bw Hospitality LLC | Accommodation and Food Services | $3,030,860 | $3,088,285 | 185 | $57.8M | Research |
| T & N Reliable Nursing Care LLC | Health Care and Social Assistance | $3,029,988 | $3,053,167 | 500 | $91.2M | Research |