By Business & Finance 
Oisín Hanrahan, founder of Keychain, is our Business Person of the Month for September 2025. The company offers an AI-powered manufacturing/supply chain platform for the Consumer Packaged Goods (CPG) industry.
By Héloïse Chaudot
Oisín Hanrahan
Irish entrepreneur Oisín Hanrahan’s latest venture is Keychain, co-founded with Jordan Weitz and Umang Dua in 2023. Their ambition was to address inefficiencies in the Consumer Packaged Goods (CPG) supply chain by using AI to help brands find manufacturers.
Hanrahan started his career in real estate with Clearwater, a company developing high-quality residential properties in Eastern European cities. During his 6-year tenure, Hanrahan completed the acquisition, planning and permitting for four developments and the construction of two of these developments.
In 2012, he co-founded Handy, an on-demand home service marketplace, with Umang Dua, Ignacio Leonhardt, and Weina Scott. Handy expanded rapidly into multiple countries (the US, Canada, UK). Although later acquired by ANGI Homeservices, Hanrahan stayed on, continuing as the CEO of Handy, and later CEO of ANGI, before leaving in 2022.
Hanrahan holds a degree in Business & Economics from Trinity College, a Master’s in Finance & Private Equity from the London School of Economics, and an MBA from Harvard Business School.
Keychain
Co-founded in 2023 by Hanrahan, Jordan Weitz and Umang Dua, Keychain is a tech platform aiming to end supply chain issues. Headquartered in New York, Keychain has expanded to Ireland and is hoping to scale more internationally. In August 2025, Keychain raised an additional $30 million (€25.6 million) from investors, bringing its total funding to $68 million. It currently serves eight of the top 10 US retailers and seven of the top 10 CPG brands, including General Mills, as customers.
Keychain launched in February 2024, immediately providing brands and retailers with over $100 million in exclusive manufacturing capacity across more than 40 product categories. Since then, its network has expanded to more than 30,000 manufacturers and over 20,000 brands and retailers.
The platform has quickly gained traction among major players, including eight of the top 10 US retailers. Among them are 7-Eleven and Whole Foods.
In just one year, Keychain has achieved a significant milestone, with the monthly value of projects it facilitates surpassing $1 billion (€950 million).
Business Person of the Month
The Business Person of the Month Award, in association with KPMG, recognises outstanding leaders in Irish business. It especially acknowledges those who have made significant contributions to the business community of Ireland.
Recipients of the award are automatically put forward as candidates for the prestigious Business Person of the Year Award at the annual Business & Finance Awards. The Business & Finance Awards will take place on Thursday, 11 December 2025, at The Convention Centre, Dublin. For any inquiries, please contact priyanka.kotian@businessandfinance.com
Business & Finance, Business Person of the Month
Business & Finance, in association with KPMG, recognises excellence in business through the ‘Business Person of the Month’ award. This award seeks to recognise noteworthy achievements in business leadership, and, particularly, those that make a telling contribution to the wider business community in Ireland.
