Don Joos is a distinguished business executive with a remarkable track record of driving business growth and transformation through M&A, strategic turnarounds, and innovative growth plays. He is the former President & CEO of TPx Communications, a Siris portfolio company, and has also served in the same role at PGi and ShoreTel. With over 20 years of experience in business leadership, his expertise lies in business model transformation, cultural change, strategy development and execution, M&A integration, and complex technology consolidation. Don is a highly balanced leader, comfortable with the challenges of start-ups as well as larger corporations with 1000+ professionals.

Prior to his roles at TPx, PGi, and ShoreTel, Don served in various senior executive positions at Avaya and SiteStuff, Inc., where he oversaw the company's global services, customer care centers, and implementation. He has a Bachelor of Science (BS) degree in Sport Management from Springfield College.

Don's unique abilities to bring business and financial vision to reality, thrive in unfamiliar or uncharted territory, and energize by complexity make him an all-weather fighter with an unusual approach to business. Keywords and phrases that describe his professional experience, expertise, and interests include Business Model Transformation, Cultural Change, Strategy Development & Execution, M&A Integration, Business Practice Optimization, and Complex Technology Consolidation.