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Business 100 - 2025

Oisin Hanrahan

Keychain

Oisin Hanrahan is the Cofounder and CEO of Keychain, a manufacturing software platform for the packaged goods industry that has raised a total funding of $68 million to date, supported by leading venture firms Lightspeed Venture Partners, BoxGroup, and SV Angel. The company is also backed by CPG industry giants like General Mills, Schreiber Foods, and The Hershey Company.

Prior to founding Keychain, Oisin served as the CEO of NASDAQ-listed Angi Inc (Angie’s List / HomeAdvisor). He joined Angi in 2018 when Handy, the company he co-founded and led as CEO since 2012, was acquired by Angi. Prior to Handy, he founded a real estate development business in Budapest, Hungary that built dozens of apartments in the city center.

Oisin served the US Commerce Secretary on the Digital Economy Board of Advisors in 2016 – 2017, during a period of unprecedented change in the application of technology to the labor force. He has spent time working on the issue of worker classification and addressed unions, congressmen, and senators, including the US Senate Democratic Caucus.

His work has been written about extensively in major media, mostly notably in the Wall Street Journal, New York Times and Forbes. He has appeared frequently on CNBC, MSNBC, Fox and Bloomberg, and given talks at conferences, including Milken Institute and Web Summit, and guest lectured at universities including NYU and Columbia. He is an active angel investor and advisor, with a portfolio of over 50 companies.

Oisin studied for his Master of Business Administration at Harvard Business School, earned a Masters in Finance from the London School of Economics, and a Business and Economics degree from Trinity College Dublin.  He co-founded The Undergraduate Awards, a foundation he created in 2009 to support and celebrate outstanding undergraduate students globally. He and his wife, Orla, have two children and have made their home in downtown Manhattan.

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