This latest round of financing was led by venture capital firm Meritech Capital Partners, and supported by previous investors Accel Partners, Greylock Partners, US Venture Partners and Venrock Associates. Imperva has raised a total of $54 million in four rounds of financing.

"The steady stream of sensitive data breaches and increased regulatory and industry scrutiny has forced organizations to address the need for visibility and control of critical applications and data," says Shlomo Kramer, president and CEO of Imperva. "This has fueled demand for our application data security products around the world. This late round of funding provides us with the capital to grow our domestic and international operations in order to extend our market share leadership and support our rapidly expanding customer base."

Imperva says its SecureSphere products deliver activity monitoring, real-time protection and risk management for business applications and databases, while providing automated capabilities for achieving, maintaining and documenting regulatory compliance.

The business-critical data security and compliance solution enables businesses to view data usage by the end-user through the application and into the database. Meanwhile, the security and compliance staff at the Imperva Application Defense Center provide automated feeds to ensure that SecureSphere is always protected against new threats and the most recent regulatory compliance best practices.