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With more than 25 years of deep industry experience, Siobhan has a proven track record for developing and growing innovation ecosystems that help entrepreneurs succeed.

Siobhan Dullea

CEO, MassChallenge

With more than 25 years of deep industry experience, Siobhan has a proven track record for developing and growing innovation ecosystems that help entrepreneurs succeed. 

As CEO of MassChallenge, Siobhan sets and manages strategy for the largest zero-equity startup accelerator in the world. Launched in Boston, Massachusetts in 2009, MassChallenge’s network has grown to include six early-stage accelerators and two vertical accelerators, it has supported the growth of startup ecosystems across five continents, and it has partnered with hundreds of organizations to grow their innovation agendas.

Siobhan has held C-level positions at leading-edge companies that support growing businesses. Since 2016, Siobhan has led MassChallenge's worldwide operations, overseeing the organization's eight accelerators worldwide, and its financial planning and talent development. Before joining MassChallenge, Siobhan was also a founding team member of C Space (formerly Communispace Corporation) where she grew the company’s workforce to nearly 500 employees and supported significant growth and expansion over her 16-year tenure.