DUMBO Startup Lab | 79 followers on LinkedIn. The DUMBO Startup Lab is a community hub for entrepreneurs, designers and innovators focused on tech & web development. We provide cowork space, host classes and events in our beautiful 2,300 sq. ft. corner loft. Our goal is to provide a synergetic, educational and collaborative environment that connects members with NYC’s Silicon Alley, while harnessing the growth and identity of Brooklyn’s own innovation ecosystem.