Tenex Greenhouse Ventures was founded in June 2001 by experienced entrepreneurs to fill the widening gap in the availability of financing and technical and managerial support for life science companies. The Greenhouse evolved from Tenex Medical Investors, the largest and most active life science angel investor network in the US, a group of 170 scientists, executives, venture capitalists and senior professional support personnel specializing in medical technology and healthcare service companies. Founding partners in the Greenhouse include Sanderling Ventures, one of the most recognized and respected venture capital firms dedicated to building new biomedical companies, and the Diaz & Altschul Group, a late stage healthcare investment firm.