Startup Haven | 1,471 followers on LinkedIn. Startup Haven is a members-only ecosystem of venture-scale startup founders and investors. | Startup Haven​ is a community of serious, venture-scale startup founders, execs and investors. Our members-only programs and events have been running continuously since 2006 in cities across the US.​ Programs include Founders Dinner, Founder to Founder, Startup Poker 2.0, Vouch Recruiting, Investor Matching and the GroundWork Accelerator.