While the rest of us are sifting through page after page of our "Google" search, Squirrel Hill Internet search clustering developer Vivisimo Inc. has quietly been adding big-name customers for its software that makes searching the Web more efficient.

Yesterday, the 12-person Carnegie Mellon University spinoff announced its second publicly traded licensee in a month -- InfoSpace Inc., which owns such frequently used search engines as WebCrawler and Dogpile -- just a few weeks after it gleaned networking giant Cisco Systems as a customer.

The 3-year-old firm's focus is twofold. While marketing its search-clustering technology to Web search firms, Vivisimo also targets companies with in-house database-sorting needs, such as newspaper archives.

Chief Executive Officer Raul Valdes-Perez declined to discuss the specifics of the Cisco and InfoSpace deals. "We are a profitable company," said Saman Haqqi, Vivisimo's marketing director.