Co-Founders

We believe our people are the difference.

Frank Baker
Frank Baker

Mr. Frank Baker is a Co-Founder and Managing Partner of Siris. Together with Peter Berger and Jeffrey Hendren, he launched Siris in 2011 and helped establish the Firm’s investment strategy, which focuses on driving value creation in mature technology companies with mission-critical products and services, facing industry changes or other significant transitions. Since its founding, Siris has raised more than $5.9 billion of cumulative capital commitments over three institutional funds, and Mr. Baker has helped oversee the Firm’s platform equity investments, in addition to non-control investments. Prior to founding Siris, Mr. Baker was a Managing Director at Ripplewood Holdings LLC, a global private equity firm. He started his career in the mergers and acquisitions group of Goldman Sachs and earned an M.B.A. from Harvard Business School and a B.A. in Economics from the University of Chicago. Mr. Baker currently serves as a trustee of the University of Chicago and has been a major supporter of the university’s New Leaders Odyssey Scholarships. Mr. Baker is chairman of Robert F. Kennedy Human Rights, and a board member of Sponsors for Educational Opportunity.
Education
Portfolio Companies
Frank Baker Pays Off Tuition For Spelman College Graduates
Frank on Measured Growth
Frank on Siris' Investment Strategy
Frank's Perspective on Team Building

Peter Berger
Peter Berger

Mr. Peter Berger is a Co-Founder and Managing Partner of Siris. Together with Frank Baker and Jeffrey Hendren, he launched Siris in 2011 and helped establish the Firm’s investment strategy, which focuses on driving value creation in mature technology companies with mission-critical products and services, facing industry changes or other significant transitions. Since its founding, Siris has raised more than $5.9 billion of cumulative capital commitments over three institutional funds, and Mr. Berger has helped oversee the Firm’s platform equity investments, in addition to non-control investments. Previously, Mr. Berger was a founding member and Managing Director of Ripplewood Holdings LLC, a global private equity firm. Mr. Berger was also a Senior Partner and Global Head of the Corporate Finance Group at Arthur Andersen. Prior to that, Mr. Berger was a Managing Director at Bear Stearns’ investment bank. Mr. Berger has an M.B.A from Columbia University School of Business and a B.Sc. from Boston University. Mr. Berger is a frequent guest lecturer at Columbia University School of Business and serves on the Board of Directors of Jazz at Lincoln Center.
Education
Portfolio Companies

Jeffrey Hendren
Jeffrey Hendren

Mr. Jeffrey Hendren is a Co-Founder and Managing Partner of Siris. Together with Frank Baker and Peter Berger, he launched Siris in 2011 and helped establish the Firm’s investment strategy, which focuses on driving value creation in mature technology companies with mission-critical products and services, facing industry changes or other significant transitions. Since its founding, Siris has raised more than $5.9 billion of cumulative capital commitments over three institutional funds, and Mr. Hendren has helped oversee the Firm’s platform equity investments, in addition to non-control investments. Prior to founding Siris, Mr. Hendren served as a Managing Director at Ripplewood Holdings LLC, a global private equity firm. Mr. Hendren started his career at Georgia Pacific and was a member of the mergers and acquisitions group of Goldman Sachs. Mr. Hendren earned an M.B.A. from Harvard Business School and a B.Sc. from Indiana University.