Complex sentence: Kauffman then spent time in turn with eCoverage, a direct-to-consumer online insurance company, Coremetrics, and (as President and CEO) MusicNow, an online music service partnered with FullAudio.
Split into simpler sentences: Kauffman then spent time with eCoverage, a direct-to-consumer online insurance company. He most recently was President and CEO of MusicNow, and online music service partnered with FullAudio.