Telenav, the Sunnyvale, CA-based voice navigation software firm, has filed to raise as much as $75 million IPO on Nasdaq. The IPO is being managed by JP Morgan and Deutsche Bank Securities. The company, which has over 700 employees, is primarily backed by Menlo Ventures, iGlobe Partners, Tenaya Capital and Sycamore Ventures, and provides the voice nav services through carriers such as Sprint (NYSE: S) and AT&T (NYSE: T), it said. The company had more than 11 million paying users as of Sept. 30, and for Q309, had profits of $4.4 million on revenue of $36 million, compared with prior-year earnings of $2.6 million on revenue of $21.5 million. For some reason the S-1 isn’t showing up in SEC filing but the company issued a release here.