nCircle has raised an $11.3 million second round of funding led by BV Capital and Alta Partners. Other investors included Court Square Ventures, Guide Ventures, Industry Ventures, Millennium Hanson and Tall Oaks Capital. BV Capital, Alta Partners and Guide Ventures will join nCircle's board of directors. Emeryville, Calif.-based nCircle has raised a total of $12.6 million. It provides software that continuously reviews a company's network for potential exposure to attacks, and notifies the company once an attack occurs.