Investors call upon Katten‘s entrepreneurial ventures team for their early-stage investments. The team is also geared to support startups from initial formation through to capital raises. In Chicago, co-chair Jeffrey Patt is adept at handling seed capital and late-stage financings. Also in Chicago, co-chair Matthew Brown has longstanding experience advising investors and corporate institutional clients on investments in startups across the health care, life sciences, and pharmaceuticals, technology, and fintech industries. Former co-chair Roger Griesmeyer left the firm in February 2026.
Legal 500 Editorial commentary
Practice head
Jeffrey Patt; Matthew Brown
Other key lawyers
Fabiola Fox