Tennr raised $101 million in Series C funding, led by IVP with participation from Andreessen Horowitz, Lightspeed, GV, ICONIQ, Foundation Capital, and Frank Slootman. The company, which automates workflows for referral-based care, has more than tripled its revenue in the past two quarters and is launching “Tennr Network” to provide real-time visibility into referral statuses for all parties involved.