Just two months after its acquisition was kiboshed by the U.S. government, Sourcefire Inc. secured $20 million in funding from a leading venture capital firm.

The Columbia, Md.,-based network intrusion prevention company announced this week that it received the funding from Maritech Capital Partners. The Palo Alto-firm specializes in providing late-stage funding to information technology companies.

"Sourcefire is everything Meritech Capital looks for in a portfolio company," said Mike Gordon of Meritech Capital. "Their combination of innovative technologies, revenue growth and successful and focused leadership ensures that Sourcefire will be a long-term industry standout. We are confident Sourcefire will continue to build its momentum and market leadership with diversified, in-demand solutions."

Sourcefire representatives said that the shot of extra capital will provide it with a "bullet-proof" balance sheet and the resources to go after new market opportunities.

This news follows closely on the heels of the collapse of a highly-publicized acquisition of Sourcefire by Check Point Technologies. Sourcefire had agreed to be bought out by Check Point for $225 million last year. However, federal officials objected to the Israeli company taking over U.S. security technology and the deal fizzled in March.