Sourcefire, Inc.
9770 Patuxent Woods Drive
Columbia, Maryland 21046
March 6, 2007
VIA FAX AND EDGAR
Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, D.C. 20549
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| Re: | | Sourcefire, Inc. |
| | | Registration Statement on Form S-1 (No. 333-138199) |
Ladies and Gentlemen:
Sourcefire, Inc. (the “Company”) hereby requests that the Securities and Exchange Commission (the “Commission”) take appropriate action to cause the above-referenced registration statement to become effective at 3:00 p.m. (EDT) on March 8, 2007 or as soon thereafter as is practicable.
In connection with this request, the Company hereby acknowledges that:
| | • | | should the Commission or the staff, acting pursuant to delegated authority, declare the above-referenced registration statement effective, it does not foreclose the Commission from taking any action with respect to the registration statement; |
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| | • | | the action of the Commission or the staff, acting pursuant to delegated authority, in declaring the registration statement effective, does not relieve the Company from its full responsibility for the adequacy and accuracy of the disclosure in the registration statement; and |
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| | • | | the Company may not assert staff comments and the declaration of effectiveness as a defense in any proceeding initiated by the Commission or any person under the federal securities laws of the United States. |
Sincerely,
Sourcefire, Inc.
By:/s/ Joseph M. Boyle
Joseph M. Boyle
General Counsel
