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Dave Sipes serves as 8x8’s Chief Executive Officer. Sipes has an extensive twelve-year history in business management at RingCentral, most recently he was Chief Operating Officer where he led innovation, engineering, global sales, marketing, customer care, international operations, corporate development, and business development. Prior to that he oversaw a variety of key functions, including Chief Revenue Officer and, prior to that, Vice President of Corporate Development. Before joining RingCentral, Sipes was co-founder and COO of Branders.com, the nation’s largest online B2B seller of promotional items. Prior to that, Sipes worked in brand management at PepsiCo and was a principal at Booz Allen Hamilton in their marketing intensive group, providing strategic guidance to marketing and media companies such as Heinz Company, Callaway Golf, and Universal Pictures. Sipes also serves on the board of directors of PandaDoc, an all-in-one document automation company that streamlines the process of creating, approving, and eSigning proposals, quotes, and contracts. Sipes holds a master’s degree in business administration with an emphasis in marketing from Kellogg School of Management at Northwestern University, as well as a bachelor’s degree in business from the University of California, Berkeley.

Mary T. McDowell is an experienced technology leader who brings more than 30 years of industry expertise to her role as President and Chief Executive Officer, leading Mitel’s global strategy and business performance. Mary’s strong operating experience in both public and private companies and deep international background have given her an intimate understanding of how to drive successful transformations and revenue growth across mobile, enterprise, and consumer technology sectors. Most recently, Mary was CEO and member of the board for Polycom, Inc., a leader in enterprise communications and collaboration, where she led the company through a strategic transformation and successful sale to Plantronics in 2018. Previously, Mary served as Executive Partner at private equity firm Siris Capital, LLC., and Executive Vice President at Nokia, where she was in charge of the company’s $15 billion global feature phone business and oversaw Nokia’s developer and app store organization. She also held senior positions at Compaq Computer and Hewlett Packard. Mary currently serves as a board member for multinational software company Autodesk, Inc. and multinational events and publishing company, Informa, plc. She is also a member of the board for the Committee of 200, a nonprofit dedicated to the advancement of women in business. Mary holds a Computer Science degree from the Grainger College of Engineering at the University of Illinois.

Richard C. Notebaert (born 1947 in Montreal, Canada) is the former Chairman and CEO of Qwest, Tellabs and Ameritech. He was credited for saving Qwest from bankruptcy, and making Ameritech the most successful "Baby Bell".