23 : Agency Consulting Group Inc.
| Location: | Columbia, Md. |
| Annual growth rate: | 107.59% |
| 2009 revenue: | $9,550,432 |
| 2008 revenue: | $6,991,129 |
| 2007 revenue: | $4,305,782 |
| 2006 revenue: | $1,956,892 |
| 2005 revenue: | $514,248 |
| Leadership: | Bernar Tallitsch, president |
| Web site: | http://www.acg-hq.com |