The Board of Directors of 8x8, Inc. (the "Company") sets high standards for the Company's employees, officers and directors. Implicit in this philosophy is the importance of sound corporate governance. It is the duty of the Board of Directors to serve as a prudent fiduciary for shareholders and to oversee the management of the Company's business. To fulfill its responsibilities and to discharge its duty, the Board of Directors follows the procedures and standards that are set forth in these guidelines. These guidelines are subject to modification from time to time as the Board of Directors deems appropriate in the best interests of the Company or as required by applicable laws and regulations.

Management Team

Dave Sipes, Chief Executive Officer


Dave Sipes serves as 8x8’s Chief Executive Officer.

Dave has an extensive 12-year history in business management. Most recently, he was Chief Operating Officer at RingCentral 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, Dave was co-founder and COO of, the nation’s largest online B2B seller of promotional items. Prior to that, he 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. Dave 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.

He 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.

Dejan Deklich, Chief Product Officer


Dejan Deklich is 8x8’s chief product officer, responsible for the company’s global infrastructure, product vision and roadmap.

His extensive experience in technology evaluation has made him an enthusiastic driver of corporate and product strategy for computational platforms and large scale systems from both a technical and a business perspective. Prior to 8x8, Dejan served as the vice president of Platform and Cloud at Splunk, where he was in charge of engineering for the core Splunk Enterprise product, as well as the company’s next-generation architecture effort.

Dejan also served as the chief technology officer of Merced Systems, which was acquired by NICE Systems in 2011, and the chief technology officer of Attributor, acquired by DigiMarc. He has also held positions at Yahoo! and IBM.

Ken Berryman, Chief Sales Officer


Ken Berryman serves as 8x8’s Chief Sales Officer.

He brings more than 25 years of global technology industry experience to 8x8 across a variety of executive management and management consulting roles. Prior to 8x8, Ken has held senior executive roles at Akamai Technologies, Intel, BMC Software, and Symantec, with a range of functional responsibilities including strategy, sales, corporate development, service delivery, and product engineering.

Ken began his career at McKinsey & Company, where he was a partner and led their North American Software Practice. Prior to his management career, Ken trained as a physicist with an undergraduate degree from Harvard and a Ph.D. from Stanford University.

Samuel Wilson, Chief Financial Officer


Samuel (Sam) Wilson serves as 8x8's Chief Financial Officer, responsible for leading the company's financial strategy and overseeing the Company’s accounting and financial reporting, planning, tax and treasury functions, as well as investments in 8x8's SaaS platform and future growth.

He brings more than 20 years of experience in financial analysis, investment management and sales to drive 8x8's business forward. Having held multiple leadership positions with the company, Sam possesses in-depth knowledge of the growth and expense drivers of the business.

Most recently, as 8x8's Chief Customer Officer, Sam managed the complete customer lifecycle globally, including professional services, implementation, customer support and the enablement teams. He previously managed 8x8’s strategic business initiatives and expansion into the UK and Europe, in addition to his role as 8x8’s SVP for the global small business, eCommerce and US mid-market sales.

Sam joined 8x8 in 2017 from MobileIron where he was instrumental in taking the company public and part of the team that grew annual billings from $26 million to $200 million, including building and leading their eCommerce business. Prior to MobileIron, he spent 14 years in technology banking, both as an analyst covering communications and as an institutional investor. He is an internationally recognized financial expert, Chartered Financial Analyst and former top-rated Wall Street analyst.

Sam is also a veteran, having served in the US Army. He holds a bachelor’s degree in Electrical Engineering from Seattle University and an MBA from the University of California, Berkeley.

Amrit Chaudhuri, Chief Marketing Officer


Amrit Chaudhuri serves as 8x8’s Chief Marketing Officer.

Amrit is a recognized leader in the cloud industry, bringing nearly 20 years of experience taking cloud and SaaS solutions to market and driving revenue, adoption, and market share growth. As CMO, he is responsible for expanding 8x8’s leadership in the combined unified communications and contact center market for businesses of all sizes.

Most recently, Amrit led marketing at RingCentral. Previously, he led marketing for Oracle’s Cloud Platform portfolio ($5B+ business), and was responsible for setting the leadership vision and execution strategy to drive growth and adoption for Oracle's PaaS and IaaS services.

Amrit holds a bachelor’s degree in engineering from Loughborough University in the United Kingdom.

Walt Weisner, Chief Customer Officer


Walt Weisner serves as 8x8’s Chief Customer Officer.

He is a seasoned customer care leader in the SaaS industry with more than two decades of senior management experience with some of Silicon Valley's most successful companies.

As Chief Customer Officer, Walt is responsible for the end-to-end experience for 8x8 customers globally, overseeing professional services, implementation, and customer support and enablement. He most recently served as Chief Customer Officer at BlueJeans Network/Verizon, where he helped transform the global customer care organization and deliver consistent world class customer experience to BlueJeans customers and partners.

Prior to that, Walt was Senior Vice President of Global Customer Care at RingCentral, where he was responsible for delivering best in class service and support to RingCentral’s customers and channel partners. He has also held executive leadership positions at ServiceNow, Shoretel, and WebEx, where he developed and implemented highly successful global post-sales service, support and success organizations.

Bryan R. Martin, Chief Technology Officer


Bryan Martin serves as 8x8’s Chief Technology Officer.

Bryan is 8x8’s technological visionary, leading the company’s drive to patent a range of disruptive and innovative technologies. With an incredible sense of how cloud communications transform enterprise communications and customer service, he led 8x8 as CEO from its early days as a VoIP pioneer to its current position as the leading provider of Unified Communications as a Service. Before becoming CEO in 2002, he held the positions of Chief Operating Officer, Chief Technical Officer and Senior Vice President, Engineering Operations.

Bryan holds 65 United States Patents in the fields of semiconductors, computer architecture, video processing algorithms, videophones and communications. Internet Telephony magazine named one of the “Top 100 Voices of IP Communications.”

Bryan also served on the California Broadband Task Force for the Business, Transportation and Housing Agency, and later became Chair of the task force’s Emerging Technologies and New Applications Working Group. He is a member of the IEEE and Tau Beta Pi and received bachelor’s and master’s degrees in electrical engineering from Stanford University.

Matthew Zinn, Chief Legal Officer, Interim Head of HR


Matthew Zinn serves as 8x8’s Chief Legal Officer, and is responsible for overseeing the company’s global legal, regulatory, privacy, and compliance efforts, as well as serving as the corporate secretary.

Matthew’s deep business experience in the areas of communications, technology, and intellectual property give him the ability to anticipate legal and regulatory challenges, and position 8x8 to effectively manage those challenges and achieve bottom-line results. He previously served as General Counsel and Secretary at Jaunt, Inc., a leader in producing and distributing immersive virtual and augmented reality content. Prior to Jaunt, he spent 16 years as Senior Vice President, General Counsel, Secretary, and Chief Privacy Officer for TiVo Inc., the digital video recording pioneer.

The San Francisco Business Times and San Jose Business Journal recognized Matthew as the Judge’s Choice for the Best Bay Area Corporate Counsel in 2014, and he was awarded Dealmaker of the Year by the Association of Media and Entertainment Counsel in both 2012 and 2013 for negotiating a series of litigation settlements as part of a patent enforcement program that resulted in a total of more than $1.6 billion in guaranteed payments for TiVo.

Previously, Matthew held senior legal positions at MediaOne Group Inc., Continental Cablevision, and the law firms of Cole, Raywid & Braverman and Fisher, Wayland, Cooper & Leader. Matthew holds a J.D. from the George Washington University National Law Center and a B.A. in political science from the University of Vermont. He serves on the Board of Directors for KQED Inc., a nonprofit media corporation in the San Francisco Bay Area.

Hunter Middleton, Ph.D, Senior Vice President, Product Management


Hunter Middleton serves as 8x8’s Senior Vice President of Product Management.

He leads product management and design at 8x8, including all of the company’s integrated cloud communication, contact center, and video collaboration solutions.

Hunter is an experienced product management leader with an 21-year record of creating engaging, industry leading telecommunications, social collaboration and enterprise software applications. He joined 8x8 from Jive Software where he was Vice President and Head of Product Management, leading the continued innovation of the enterprise social collaboration application used by many of the largest global companies.

Prior to Jive, Hunter was the Head of Product Management at Google for Work Systems, and led the Google Apps Enterprise product team as it grew G-Suite to serve over one million companies worldwide. Hunter earned his Ph.D in Physics from Princeton University, and holds a master’s degree in management from the Kellogg Graduate School of Business at Northwestern University.

Bobby Hall, Global Vice President, Channel Sales


Global Vice President, Channel Sales

Bobby is responsible for accelerating business growth through 8x8’s award-winning channel partnership program.

An accomplished channel professional, Bobby has proven results in building and leading highly charged sales and technical teams in the telecom field. Prior to joining 8x8 in 2018, he held positions at CenturyLink, Unify, Arrow, ShoreTel, Avaya, and ATT.

Bobby earned his bachelor’s degree in Marketing from Seton Hall University in South Orange, NJ, and resides in Boca Raton, FL, with his wife and three children.

Scott Sampson, Senior Vice President, International Field Sales


Scott Sampson serves as 8x8’s Senior Vice President of International Field Sales.

He is responsible for all efforts to expand global midmarket and enterprise sales with a focus on developing and leveraging channel relationships to help drive this consultative sales business. Scott has more than 25 years of software industry experience with a proven track record of sales success. He was most recently the Chief Revenue Officer at New Voice Media where he had global responsibility for all the company’s sales, channel and marketing functions.

Scott has also previously held sales executive and management positions at IBM, including Vice President of Worldwide Analytics Platform Sales, a multi-billion dollar revenue business, and Vice President of Industry Cloud Solutions, North America. While at IBM, he led organizations ranging in size from 150 to 4,000 sales professionals, and was consistently ranked in the top one percent of global sales leadership.

Scott holds a bachelor of science degree in Computer Science from Northeastern University and an MBA from the Massachusetts Institute of Technology.

Mehdi Salour, Senior Vice President, Global Network and Development Operations


Mehdi Salour serves as 8x8’s Senior Vice President of Global Network and Development Operations.

He is a super-ninja when it comes to global networks and DevOps. Medhi leads 8x8′s global network, data center, and security operations, enabling enterprise-grade service delivery to be a key differentiation for the company. In addition, as 8x8 increasingly supports the growing needs of mid-market and enterprise customers, he is chartered with spearheading the company’s DevOps cultural transformation to accelerate the delivery of innovative features and services.

Prior to this role at 8x8, Mehdi led the company’s network operations, service deployment, customer support and success organizations, and met the demands of customers- across SMB to mid-market and enterprise. He has been with 8x8 since the inception of the VoIP and UCaaS services, and has played a major role in developing the company’s CRM strategy as it transitioned from an OEM technology company to a customer-centric service provider. Under his leadership, 8x8 has built a world-class global cloud service delivery and network infrastructure, resulting in increased customer satisfaction and low churn.

Mehdi gained his real-world experience with enterprise networks through various other 8x8 positions, including IT Network Engineer, Network Operations Engineer, Manager of Technical Support, Director of Technical Support and Vice President of Network Operations. He holds a bachelor’s degree in electrical engineering and a master’s in software engineering with specialization in networking software and security. He holds over 20 patents.

Germaine Cota, Chief Accounting Officer


Germaine Cota serves as 8x8’s Chief Accounting Officer.

She joined 8x8 in January of 2020 as Global Vice President, Corporate Controller and Treasurer, and was appointed to Chief Accounting Officer in November 2020. Prior to joining 8x8, Germaine served as the U.S. CFO for Nikkei listed Mercari, Inc., a peer-to-peer e-commerce platform, from August 2018 to December 2019.

From April 2013 to August 2018, she held various accounting, accounting operations, and financial reporting roles at LinkedIn Corporation, an online services business with the world's largest professional network. Prior to LinkedIn, Germainespent more than nine years in assurance and advisory services at Ernst & Young, LLP.

She holds a bachelor of science degree in Accounting from Santa Clara University, and is a Certified Public Accountant in California.

Board of Directors

Dave Sipes, Chief Executive Officer


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, 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.

Jaswinder Pal Singh, Chairman of the Board


Jaswinder Pal Singh has served as a director since October 2013 and Chairman of the Board since December 2020. Since 2004, Dr. Singh has served as a Full Professor of Computer Science at Princeton University. He has also served as Chairman since May 2013 and Co-Founder since October 2011 of Gwynnie Bee, Inc., an Internet technology company in the retail space. Previously, he was Co-Founder and Chief Technology Officer at firstRain, Inc., a SaaS provider of market intelligence solutions for the enterprise, where he led the development of award-winning technologies and products for web-based communication and information access. Dr. Singh also served as an advisor to Right Media, Inc., a SaaS online advertising exchange that was acquired by Yahoo in 2007, and later led the development of Yahoo's innovative next-generation advertising marketplace. Dr. Singh is a leading authority on Scalable Computing Systems, Infrastructure and Applications and has served as a consultant to several leading companies and agencies. He was the only computer scientist to receive the NSF Presidential Early Career Award for Scientists and Engineers in 1997 and was also a winner of the Sloan Research Fellowship in the same year. He is a coauthor of Parallel Computer Architecture: A Hardware-Software Approach, the leading textbook in Parallel Computing, and author of several patents and over 75 published research papers. Dr. Singh has a BSE degree from Princeton University and obtained his MS and PhD degrees from Stanford University.

Member of the Nominating and Governance Committee
Member of the Compensation Committee

Monique Bonner


Ms. Bonner is Executive Vice President & Chief Marketing Officer at Akamai, where she is dually focused on driving growth and operational excellence. She leads Akamai’s marketing efforts globally including brand, communications, field and digital marketing, as well as the company’s sales and services training and enablement programs. Ms. Bonner has over 20 years of marketing and operations experience leveraging digital technologies, big data, and advanced analytics to drive efficient and effective personalized marketing at scale. Prior to Akamai, Ms. Bonner spent 16 years at Dell Technologies in several global leadership roles, most recently serving as VP of Global Digital, Technology and Innovation with a focus on leveraging new technologies to optimize marketing effectiveness. She spent seven years in Europe leading both sales and marketing groups for Dell’s European business and also held roles leading global brand and Americas marketing for the company. Ms. Bonner has served on the Ad Council’s Board of Directors and Conference Board’s Council for Brand Management. She earned her Bachelor of Arts from Middlebury College and her Master of Business from the University of Michigan. Ms. Bonner was recently awarded the 2018 Massachusetts Technology Leadership Council CMO of the Year Award.

Chair of the Nominating and Governance Committee
Member of the Audit Committee

Todd Ford


Todd Ford is the Chief Financial Officer at Coupa Software (NASDAQ: COUP), a leader in Business Spend Management, where he oversees the company’s financial strategy and operations. Prior to joining Coupa, Mr. Ford served as Chief Financial Officer of MobileIron, where he led the company through a successful IPO in 2014. Prior to that, Mr. Ford served as Chief Financial Officer and President of Rackable Systems Inc. (acquired by HPE) where he led the start-up from $20 million in revenue to more than $350 million in revenues as a publicly traded company. Mr. Ford also held various management and financial positions with several technology companies. He earned a B.S. in Accounting from Santa Clara University.

Chair of the Audit Committee
Member of the Compensation Committee

Alison Gleeson


Alison Gleeson was Senior Vice President of the Americas organization, the largest of Cisco's four geographic regions, responsible for more than $25 billion in annual sales for the company and leading nearly 9,000 employees across 35 countries. In more than 20 years at Cisco, Alison has led several top-performing organizations by focusing on a customer-first mentality, building go-to-market and data-driven initiatives, and strengthening Cisco’s relationships with top partners. This includes theaters in Canada, Latin America, US Commercial, US Public Sector, as well as the Global Enterprise Segment which included Cisco’s top 28 customers.

Alison is also a highly-regarded international speaker about the drivers for digital disruption across industries, the role of technology in enabling business transformation, and empowering women in technology. Alison maintains a commitment to professional development and inclusion and diversity in the workplace. In 2018, she received Connected World’s “Woman of IoT” award for her role in advancing the field. In 2017, she received Diversity Best Practice’s “Above and Beyond Legacy Award” and Michigan Council for Women in Technology’s “Woman of the Year Award” for her work in advancing women in IT roles. She was the Global Executive Sponsor and Board President for Cisco's Connected Women's Network, an organization with 7,000 members worldwide. Alison currently serves on the Board of Directors for Elastic, a public company with corporate headquarters in Mountainview, California. In addition, she serves on The Eli Broad College of Business Advisory Board of Directors for her alma mater, Michigan State University. She is an active Investor, Portfolio Committee Member, and Advisor to Brighton Park Capital headquartered in Greenwich, CT.

Vladimir Jacimovic


Vladimir Jacimovic has over 25 years of investing and operating experience with high growth companies in the technology and services industry with specific expertise in the Software as a Service (SaaS), Big Data and Security segments. He is the Founder and Managing Partner of Continuum Capital Partners, an investment firm that specializes in crossover investments targeting private and public technology companies. Previously, Mr. Jacimovic was a Partner at New Enterprise Associates (NEA), a leading global venture capital firm focused on helping entrepreneurs build transformational businesses across multiple stages, sectors and geographies, and a Managing Director at Crosslink Capital, a leading stage-independent venture capital and growth equity firm. Since beginning his venture career in 1996, Mr. Jacimovic has been involved in more than 30 investments in software, communications, and technology enabled services. Mr. Jacimovic began his career with operating roles at Intel and Ingres, and later worked as a management consultant with McKinsey & Co. in the US and in Europe. He holds an MBA from Harvard Business School and a BS in Computer Science and Mathematics from the University of San Francisco.

Eric Salzman


Eric Salzman has served as a director since February 2012. Mr. Salzman has over 20 years of experience investing in and advising technology companies with a focus on the communications and software sectors. Mr. Salzman has extensive M&A, capital markets, private equity and board experience having served on the boards of 20 companies including as executive chairman, non-executive chairman as well as chairman of the audit, compensation and strategic committees. He currently serves as an independent director at two private equity owned companies. Since 2020, Mr. Salzman has been the Chief Executive Officer of Safeguard Scientifics, Inc., a publicly traded company which provides capital and expertise to support the growth of technology driven businesses in healthcare, financial services and digital media. Since 2011, Mr. Salzman has been the Managing Member of SarniHaan Capital Partners LLC, a boutique consulting firm that provides high impact strategic advice to public and private technology. Prior to establishing SarniHaan Capital Partners LLC, Mr. Salzman was employed by Lehman Brothers Holdings as a Managing Director in the Private Equity and Principal Investing Group as well as a Managing Director in the Global Trading Strategies Division. Prior to Lehman Brothers, Mr. Salzman was a senior research analyst covering the technology and communications sectors in the hedge fund industry and was a senior private equity investment professional at two communications-focused private equity funds. Mr. Salzman began his career in the M&A Group at CS First Boston. Mr. Salzman has a B.A. Honors from the University of Michigan and an MBA from Harvard University.

Chair of the Compensation Committee
Member of the Audit Committee
Member of the Nominating and Governance Committee

Elizabeth Theophille


Elizabeth Theophille is Chief Technology and Digital Officer at Novartis (NYSE: NVS), a global healthcare company. Ms. Theophille is a global information technology professional with a strong track record of using technology to transform how the business operates, creating new value and growth. Her leadership and service management experience include implementing cloud infrastructure and outsourcing at enterprise scale, cyber security initiatives, sourcing and contract negotiations, and adopting a software-as-a-service (SaaS) approach to application development. Her digital transformation experience includes building data and advanced analytics platforms, AI and Robotics Process Automation at enterprise scale. In her role at Novartis, she is focused on the implementation of data and digital initiatives in IT and for end to end operational simplification programs across the organization. Prior to Novartis, Ms. Theophille spent five years at Alcatel-Lucent and Nokia moving from Chief Technology Officer to Group Chief Information Officer following Nokia’s acquisition of Alcatel-Lucent. Earlier in her career, Ms. Theophille worked for major global corporations including Capgemini S.A., BP International, Sita Equant and Vivendi Universal in information technology leadership roles, and has lived in the United Kingdom, United States, France and Switzerland. She earned her Bachelor of Arts in Business Administration from International Management Center in Buckingham, U.K.

Committee Composition

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