Ela Madej

Founding Partner

Serial tech entrepreneur, impact investor and Y Combinator alum. Founder of Impact.tech -- a community of techies who want to combine purpose with profit.

Read more →

Shuo Yang


Serial entrepreneur and Y Combinator alum (S15), Shuo has founded and operated companies in both the China and the USA.

Read more →

Seth Bannon

Founding Partner

Social entrepreneur. Impact investor. Founder of Amicus and Impact.tech. Y Combinator alum. Forbes 30 Under 30 for social entrepreneurship.

Read more →

Katariina Helaniemi

Operations at Impact.tech

Previous Chief Curator at Europe’s leading tech event, Slush.org. Author of a leading book on startup entrepreneurship in Finland.

Read more →


Ela and Seth are great at bringing operational efficiency to our company, including both managing tasks and team motivation. They’re able to do such a good job because they’ve walked the journey and built great companies.
— Harry Gandhi, Co-founder & CEO, Medella Health


Fifty Years runs an event series called Impact.tech!

Impact.tech hosts monthly deep dive seminars around new technologies and brings together scientists, entrepreneurs and investors with the goal of exploring all the areas of business activity in which tech entrepreneurship can solve big social and environmental problems. In fact, the best place to talk to the Fifty Years team are these events!