Siris Capital Group
Overview
Siris Capital Group is a private equity firm that invests primarily in mature technology and telecommunications companies with mission-critical products and services, facing industry changes or other significant transitions . The firm targets control-oriented investments in North American, middle-market technology and technology-enabled services companies .
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Equiniti | May 2026 | M&A | Co-investor |
| Newfold Digital | Dec 2025 | private_equity | Co-investor |
| Mavenir | Jul 2025 | Debt | Co-investor |
| Mavenir | Jun 2025 | Debt | Lead |
| Mavenir | May 2023 | Strategic | Lead |
Key People
Frank Baker
Co-Founder Managing Partner
Peter Berger
Managing Partner
Jeff Jacobson
Executive Partner
Joe Cozzolino
Executive Partner
Sandeep Guleria
Partner
Steven Spencer
Partner, Chief Legal Officer, Chief Compliance Officer
Ted Ted
Executive Partner
Jared Nadan
Vice President, Investor Relations
Nazar Bilukha
Vice President - Private Equity Investing
Grant Weisberg
Principal
Kevin O'Brien
Principal
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
