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TPx Appoints Don Joos as Chief Executive Officer

LOS ANGELES, July 6, 2020 — TPx Communications, a premier managed services provider, announced today that its board of directors has named Don Joos, a proven leader with more than 20 years of experience in the technology industry, as chief executive officer, effective immediately. Mr. Joos succeeds Joe Cozzolino, who has served as interim CEO during the board’s search for a CEO. Mr. Cozzolino will continue to serve as executive chairman of the board of TPx.

Mr. Joos brings to TPx a deep industry knowledge and a strong track record of transforming high-tech companies. Most recently, he served as the CEO of PGi, the world’s largest dedicated provider of collaboration software and services, and, like TPx, a portfolio company of Siris Capital Group, LLC (“Siris”). Prior to joining PGi in 2017, Don served as President and CEO of ShoreTel, driving the strategic transformation of the business from a pure hardware solution into one of the leading cloud communications providers.

Mr. Cozzolino said, “Don has an excellent track record of driving change, performance and results in high-growth, innovative technology companies, and is well-suited to drive TPx’s strategic and operational transformation and further its mission of delivering superior managed IT solutions. As executive chairman, I look forward to working closely with Don to help the team achieve its strategic objectives.”
Mr. Joos stated, “I am honored to be appointed to this role during an exciting time at TPx. My focus will be on accelerating TPx’s development, building on its industry-leading customer satisfaction, tremendous range of award-winning products, and its large, diversified customer base. TPx plays an important role in serving the fast-growing addressable market for UCaaS, CCaaS, and managed IT services, including security, and is aligned to expand market share. I look forward to partnering with TPx’s leadership team and employees to drive the company’s next phase of transformation.”


About TPx

Founded in 1998, TPx is a leading provider of UCaaS, Managed IT services and Managed Connectivity services, with approximately 25,000 customers with more than 50,000 customer locations across the U.S. TPx has best-in-class customer service embedded in its corporate DNA, offering guaranteed performance to all customers wherever there’s a broadband connection. TPx customers serve every business sector and include many government and not-for-profit enterprises. For more information, visit www.tpx.com or follow @TPxComm on Twitter.

About Siris

Siris is a leading private equity firm that invests primarily in technology and telecommunications companies with mission critical products and services. Its investment approach is based on a combination of proprietary research and extensive collaboration with senior operating executives, who actively participate in key aspects of the transaction lifecycle to help drive strategic and operational value. Siris is based in New York and Silicon Valley and has raised nearly $6 billion in cumulative capital commitments. www.siris.com

Media Contacts


Khali Henderson
BuzzTheory (for TPx)
[email protected]


Dana Gorman
Managing Director, Abernathy MacGregor
[email protected]

Blair Hennessy
Senior Vice President, Abernathy MacGregor
[email protected]