Which company is headquartered in San Francisco and invested in by Jeff Clavier?
SoftTech VC:  It was founded in 2004 by Jeff Clavier. Fitbit: Fitbit () is an American company headquartered in San Francisco, California, known for its products of the same name, which are activity trackers, wireless-enabled wearable technology devices that measure data such as the number of steps walked, heart rate, quality of sleep, steps climbed, and other personal metrics involved in fitness.
Fitbit