About

ThirdStream Partners LLC invests in venture and strategic opportunities across financial technologies (FinTech) and financial services. We deploy capital through principal investments in a broad range of companies, from early-stage startups to later-stage private companies, partnering with leaders who are transforming how financial markets, institutions, and infrastructure operate.

Our team brings decades of experience from firms that pioneered the application of quantitative, computer-driven approaches in the finance industry. Prior to founding ThirdStream Partners, our principals led Barclays Global Investors, at the time the world’s largest quantitative investment management firm, which was acquired by BlackRock in 2009. We bring not only capital, but also strategic insight, operational expertise, and long-term partnership to the companies we support.

For additional background on the history of Barclays Global Investors: