The acquisition of ClamAV by Sourcefire was made on August 17th, 2007.
The company's initial growth was funded through four separate rounds of financing raising a total of $56.5 million from venture investors such as Sierra Ventures, New Enterprise Associates, Sequoia Capital, Core Capital Partners, Inflection Point Ventures, Meritech Capital Partners and Cross Creek Capital, L.P., a venture fund whose general partner is a wholly owned subsidiary of Wasatch Advisors, Inc.
In March 2007, Sourcefire completed an initial public offering raising $86.3 million. The sole book-running manager of the offering was Morgan Stanley & Co. Incorporated. Lehman Brothers Inc. acted as co-lead manager and UBS Securities LLC and Jefferies & Company, Inc. served as co-managers.