David Semel Rose (born June 12, 1957) is an American serial entrepreneur[1] and angel investor.

[9] He received his BA in Urban Affairs from Yale University in 1979,[10] his MBA in Finance from Columbia Business School in 1983[11] and an honorary Doctor of Engineering degree from Stevens Institute of Technology.

[12] Rose was involved in the early development of the Silicon Alley technology community in New York,[13][14] including working with pre-Internet era online data services and founding Ex Machina, a computer software company;[15] The Computer Classroom, an early personal computer training company;[16] and AirMedia, an early wireless Internet information network.

[19] In 2005, BusinessWeek magazine included an article titled 'The Pitch Coach' about his sessions for entrepreneurs seeking funding from venture capitalists and angel investors.

[20] He is an Associate Founder of Singularity University, the post-graduate program in accelerating technologies,[21] and founded and chaired its Finance, Entrepreneurship and Economics track.