Differentiated Strategy.
Sound Execution.
Operational Focus.


Siris is a private equity firm that invests in mission-critical, mature tech & telecom businesses at strategic crossroads.

Our StrategyOur Team

Since 2011


Siris has raised over $5.9 billion of cumulative committed capital and is currently targeting investment opportunities with transaction values of $500 million to $5 billion.

Tech & Telecom Focus


Our portfolio consists of companies with mission-critical products and services across the tech and telecom landscape.

News


November 17, 2021

Siris Publishes Inaugural Annual ESG Report and Joins the UN-supported Principles for Responsible Investment  Read More

November 2, 2021

SaaS Leader Bret Griess Joins Siris as Executive Partner  Read More

Team


Combining investment acumen and hands-on operating expertise.

New York


601 Lexington Ave.
59th Floor
New York, NY 10022

Palo Alto


260 Homer Ave.
Suite 101
Palo Alto, CA 94301

Palm Beach


Phillips Point West Tower
777 S. Flagler Drive
Suite 1400
West Palm Beach, FL 33401

New York


601 Lexington Ave.
59th Floor
New York, NY 10022

Palo Alto


260 Homer Ave.
Suite 101
Palo Alto, CA 94301

Palm Beach


Phillips Point West Tower
777 S. Flagler Drive
Suite 1400
West Palm Beach, FL 33401