Don Joos

Don Joos joined TPx as CEO in 2020 following the company’s acquisition by Siris Capital LLC. In this role, he leads the company’s continued strategic evolution, capitalizing on its successful transformation into the premier managed services provider. Joos brings more than 20 years of experience in the technology industry with a strong track record of transforming high-tech companies in the software as a service (SaaS) and unified communications as a service (UCaaS) space.

Most recently, Joos was the CEO of PGI, a cloud-based communications and collaboration provider and Siris Capital portfolio company. Previously, he served as President and CEO of ShoreTel from 2013 until its sale in 2017. In that capacity, he drove the strategic transformation of the business to a subscription-based SaaS model. While at ShoreTel, he also served as Senior Vice President of Business Operations and Vice President of Global Services. Prior to that, Joos held executive roles at Avaya, including Vice President of Global Services, Vice President of Global Implementations and Vice President of Global Customer Care. Earlier in his career, he was Vice President of Services and Strategic Customers at SiteStuff. Joos earned a Bachelor of Science degree from Springfield College in Massachusetts.