The San Francisco, California-based company recently expanded its clustering expertise with the acquisition of Linux cluster software vendor Scyld Computing Corp, and will use the funding to further develop the Scyld Beowulf software, as well as to boost the combined company’s sales force and services organization.

The funding was led by London Merchant Securities Plc, which was joined by Convergence Partners, and Sunrise Venture Capital. As part of the deal, Scott Potter, a managing director with LMS Capital, has joined Penguin’s board of directors.

Penguin’s investment round follows the announcement last week that Linux clustering rival Linux Networx Inc had secured $40 million in series B funding.