First Street

Acquired by MSCI. The deal was announced 23-24 June 2026 and completed 3 August 2026 (https://www.msci.com/discover-msci/media-room/msci-completes-acquisition-of-first-street). MSCI's Form 10-Q for the quarter ended 30 June 2026 puts the consideration at $120.0 million in cash at closing plus undisclosed contingent payments over two years tied to revenue thresholds (https://www.sec.gov/Archives/edgar/data/1408198/000140819826000046/msci-20260630.htm); First Street is reported within MSCI's Sustainability and Climate segment. The $46M Series A shown here predates the acquisition. Two trade outlets give First Street's founding year as 2016 rather than the 2017 carried here, and the Brooklyn headquarters is unverified.