Platforms that Connect the World

Executive Leadership and Governance

To achieve our mission, Calix has assembled a world-class executive leadership team and Board of Directors from a variety of successful communications, technology, networking, software, and cloud companies.

Executive Leadership
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    Carl Russo

    President and
    Chief Executive Officer

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    Cory Sindelar

    Chief Financial Officer

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    Michael Weening

    Executive Vice President
    and Chief Operating Officer

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    Suzanne Tom

    Senior Vice President
    General Counsel

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    Matt Collins

    Chief Marketing Officer

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    Michel Langlois

    Chief Development Officer
    Intelligent Access EDGE Products

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    Martha Galley

    Vice President
    Customer Engagement

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    Mehdi Bradaran

    Senior Vice President
    Product Operations

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    Mark Dressler

    Senior Vice President
    Global Sales

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    Shane Eleniak

    Senior Vice President
    Revenue EDGE Products

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    Todd Ortberg

    Senior Vice President
    Strategic Development

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    Teri Koreen

    Vice President
    Supply Chain Operations

Carl Russo

Carl is president and CEO of Calix and a member of the board of directors. Carl has over 30 years of experience in the networking and telecommunications industries. From November 1999 to May 2002, Mr. Russo served as vice president of optical strategy and group vice president of optical networking of Cisco Systems, Inc. From April 1998 to October 1999, Mr. Russo served as president and chief executive officer of Cerent Corporation, which was acquired by Cisco. From April 1995 to April 1998, Mr. Russo served in various capacities, including as chief operating officer, at Xircom, Inc., which was acquired by Intel Corporation. Previously, Mr. Russo served as senior vice president and general manager for the hyperchannel networking group of Network Systems Corporation and as vice president and general manager of the data networking products division of AT&T Paradyne Corporation. Mr. Russo served on the board of directors of Vital Network Services, Inc., a privately-held company delivering network lifecycle services, and Xirrus, Inc., a privately-held company providing products that enable high-performance wireless networks. Mr. Russo attended Swarthmore College and previously served on its board of managers.

Cory Sindelar

Cory is Chief Financial Officer at Calix, and has an extensive 25-year track record as a senior financial leader working for technology companies. He joined Calix from Violin Memory, where he was Chief Financial Officer. He also previously served as Chief Financial Officer of Ikanos Communications, leading several strategic transactions during his tenure. Cory also held various finance positions at EMC Corporation. Prior, Cory was vice president, corporate controller and principal accounting officer at Legato Systems, Inc., which was acquired by EMC. Cory holds a Bachelor of Science degree in Business Administration with an emphasis in accounting from Georgetown University.

Michael Weening

Michael is the executive vice president and COO for Calix. Michael is responsible for the Revenue EDGE research and development as well as the manufacturing, design and distribution of all Calix products and platforms. Michael also leads the field team that guides service providers through their transformation journey (Marketing, Sales, Support and Customer Success). Michael has over 20 years of experience leading growth, strategy and transformation. He joined Calix from Salesforce.com where he was the senior vice president of Global Customer Success, and also held the role of senior vice president, Japan and Asia-Pacific Customer Success, Services and Alliances. Michael has held executive positions in North America, Europe and Asia. Previously, Michael held leadership roles at Bell Mobility in Canada, where he was vice president of business and consumer sales. Prior, Michael held sales leadership roles at Microsoft, in Canada and London, U.K. Michael holds a Bachelor of Arts in Business Administration, from Brock University supported by ongoing executive education at Queens, Wharton and USC.

Suzanne Tom

Suzanne is general counsel for Calix and oversees all legal and regulatory aspects of the company's business. A seasoned tech sector veteran, Suzanne provides a wealth of diverse experience in the practice of law to Calix. Prior to joining Calix, Suzanne was vice president, corporate legal and compliance at Verifone Systems, Inc. Previously, she held a number of legal and corporate roles at Latham and Watkins, the U.S. District Court of Northern California, ONI Systems, Turnstone Systems, and Ernst & Young LLP. Suzanne has a JD from UC Hastings College of the Law, a BS in Business Administration from UC Berkeley and qualified as a CPA with Ernst & Young.

Matt Collins

Matt is chief marketing officer (CMO) for Calix. In this role Matt leads the go-to-market and commercial operations team which includes all corporate, field, and product marketing, channels and ecosystems, professional services, field excellence, decision sciences and commercial strategy. Over the course of his career, he has built and led marketing and strategy teams at Dun & Bradstreet, IBM, McKinsey and Merck. Most recently, as SVP global marketing and go-to-market strategy at Dun & Bradstreet, Matt built D&B’s enterprise marketing capabilities and led the launch of its new cloud solutions and Global Lines of Business. Prior to joining D&B, he spent over a decade at IBM in senior Marketing and Strategy roles across IBM’s Software, Hardware and Services businesses. While at IBM Matt also led several cross-IBM “Smarter Planet” growth initiatives and helped build the Chief Analytics Officer function. While at McKinsey, he worked with many of the firms leading clients to help them transform their go-to-market strategies. Matt received his MBA from Harvard University and a B.A. from Dartmouth College.

Michel Langlois

Michel is responsible for R&D strategy, product development, engineering processes, product quality, and R&D strategic partnerships. He has more than 32 years of experience in networking technologies, large-scale software development, engineering management, and methodologies. Before joining Calix, Michel was Senior Vice President, Junos software at Juniper Networks. Prior to Juniper, he served as Senior Vice President, Network Software and System Technology Group (NSSTG) responsible for the IOS software/platform at Cisco Systems. Michel has a BSEE from the Université de Sherbrooke in Quebec, Canada.

Martha Galley

Martha leads our customer engagement organization, including the Support, Success and Education Services teams among others. She joined us most recently from Salesforce where her team built the Global Programs, Services and Content Assets for Customer Success serving over 200K customers world-wide. Prior to Salesforce at Microsoft, Martha built the Telco Partner Channel and Go-to-Market strategy for launching Office365 as part of Value-Added bundles to Small Business customers across Latin and South America.

Mehdi Bradaran

As senior vice president of product operations, Mehdi is responsible for all systems hardware development, manufacturing operations, supply chain management, and quality systems. Mehdi also oversees all aspects of the Calix Development Center operations in China. Mehdi has over 30 years of development and operations experience in the aerospace and telecommunications industries. Prior to joining Calix, Mehdi held management positions at DSC/Alcatel and led engineering teams in hardware development and system integration of next generation digital loop carriers. Mehdi has also held various development and management positions at Lear Astronics and PowerTec. He holds a BSEE from Utah State University and an MSEE from West Coast University.

Mark Dressler

Mark is senior vice president of global sales for Calix and has 30 years of experience in the communications service provider industry. Mark is responsible for all sales activities at Calix leading a team working to transform our customers business and services models. Before joining Calix, Mark held a variety of executive sales, marketing, and business development roles at Nortel. Mark previously held various senior engineering and management positions in the communications industry. Mark has a BSEE from Purdue University.

Shane Eleniak

Shane is the Senior Vice President of Revenue EDGE Products at Calix. Shane is responsible for both the Premises and Cloud businesses and leads the teams responsible for the EXOS and Calix Cloud Platforms including Strategy, Product Management, Engineering and Cloud Operations. He has more than 25 years of experience creating software and networking innovation. Prior to joining Calix, Shane was the Group Vice President of the Advanced Broadband Solutions (ABS) business unit at CommScope, responsible for all edge, access and CPE products within the Broadband Division. Earlier in his career, Shane was EVP of Marketing and Business Development for Alloptic where he was the corporate officer responsible for all product and commercial operations. Shane previously held several key executive management positions in marketing, product management, business development and engineering at such industry leaders as Corrigent Systems, Alcatel-Lucent, and Telus. Shane holds a B.Sc. in Electrical Engineering from the University of Alberta.

Todd Ortberg

Todd is senior vice president of strategic development for Calix. Todd has spent 34 years in the telecommunications industry in a variety of executive and technical leadership roles. At Calix he leads all merger, acquisition, and divestitures, as well as strategic development guidance. Previously, he was President and CEO of network software technology vendor Alvarri, which was sold to Bakbone, then Dell. Prior to Alvarri, Todd was a venture capitalist with Coral Capital Management, where he led all communications investments in dozens of venture backed companies, including investing in Calix. Todd has also held executive leadership roles at ADC Telecommunications, leading the Access Division as vice president and general manager and previously vice president of engineering. Prior to ADC, Todd held numerous marketing and engineering management positions with Rockwell International and Texas Instruments, and was an adjunct faculty member at Upper Iowa University, teaching Business Strategy. He has a BS in engineering from Iowa State University and an MBA from the University of Iowa, Tipple School of Management.

Teri Koreen

Teri is vice president of supply chain operations for Calix, leading a global organization responsible for new product introduction, planning, supplier and contract manufacturer management, logistics, order fulfillment, and quality systems engineering. Teri brings over 20 years of operations experience in the telecommunications industry to her role of delivering profitable growth by creating a flexible, efficient supply chain. Prior to joining Calix, Teri held management positions at Turin Networks and process engineering and supply chain design roles at Agilent and Hewlett Packard. Teri earned her MBA from University of Phoenix and holds a BS in Industrial Engineering from Stanford University.

Board of Directors
  • Don Listwin

    Chairman of the Board

  • Christopher J. Bowick

    Independent Director

  • Kathy Crusco

    Independent Director

  • Kevin DeNuccio

    Independent Director

  • Michael Everett

    Audit Committee Chair

  • Kira Makagon

    Independent Director

  • Michael Matthews

    Independent Director

  • Kevin Peters

    Independent Director

  • J. Daniel Plants

    Independent Director

  • Carl Russo

    President and
    Chief Executive Officer

Don Listwin

Mr. Listwin has served as chairman of our Board since July 2007 and brings over 30 years of experience in the networking industry. Since January 2018, Mr. Listwin has served as chief executive officer of iSchemaView, a privately-held medical device company. Mr. Listwin founded BelizeKIDS.org in 2016, a non-profit organization focused on helping children in Belize, and Canary Foundation in 2004, a non-profit organization devoted to the early detection of cancer and has served on the board of directors of both organizations since their inception. From January 2008 to January 2009, Mr. Listwin served as chief executive officer of Sana Security, Inc., a security software company, which was acquired by AVG Technologies. From September 2000 to October 2004, Mr. Listwin served as chief executive officer of Openwave Systems Inc., a leader in mobile internet infrastructure software. Mr. Listwin holds an honorary Doctorate of Law from the University of Saskatchewan and a Bachelor of Science in Electrical Engineering from the University of Saskatchewan.

Christopher J. Bowick

Mr. Bowick brings to our Board extensive experience in advising and managing companies in the technology and telecommunications industries. Mr. Bowick is principal of The Bowick Group, LLC, where he provides technology, product, business and executive-development advice and counsel to clients in the cable television and telecommunications industries. From 1998 until his retirement in 2009, Mr. Bowick held various positions at Cox Communications. Mr. Bowick joined Cox in 1998 as vice president, technology development, and was named senior vice president of engineering and chief technical officer in 2000. At Cox, Mr. Bowick was responsible for strategic technology planning, day-to-day technical operations and the development and deployment of technology solutions for the company’s video, voice, high speed data and wireless products, including the development and deployment of telecommunications services, such as circuit-switched telephone, voice over IP, high-speed data, digital video, HDTV, video-on-demand and interactive television. Mr. Bowick holds a Master of Business Administration from the University of Colorado and a Bachelor of Science in Electrical Engineering from the Georgia Institute of Technology. Mr. Bowick is a National Association of Corporate Director (“NACD”) Governance Fellow under the NACD’s director credential program.

Kathy Crusco

Ms. Crusco brings to our Board a wealth of experience instilling operational rigor at leading technology companies. From December 2017 until January 2020, Ms. Crusco served as executive vice president and chief financial officer at Kony, Inc., a privately-held mobile applications solutions provider, which was acquired by Temenos, a banking software company. From August 2016 until November 2017, Ms. Crusco served as executive vice president, chief operating officer and chief financial officer at Epicor Software Corporation, a privately-held software company. Ms. Crusco holds a Bachelor of Science in Business Administration with an emphasis in accounting from California State University, Chico.

Kevin DeNuccio

Mr. DeNuccio brings to our Board over 25 years of leadership, strategic and governance experience at communications technology companies and service providers worldwide. Mr. DeNuccio is presently general partner of Wild West Capital LLC, a private investment firm which he co-founded in July 2012. From February 2014 until April 2017, Mr. DeNuccio served as president, chief executive officer and a member of the board of directors of Violin Memory, Inc., a publicly-held data storage company, which filed a voluntary petition for Chapter 11 bankruptcy protection in December 2016 and was subsequently acquired by a unit of Soros Fund Management LLC. Mr. DeNuccio served as chief executive officer of Metaswitch Networks, a telecommunications hardware and software company, from February 2010 until June 2012. Mr. DeNuccio has a Master of Business Administration from Columbia University and a bachelor’s degree in Finance from Northeastern University.

Michael Everett

Mr. Everett brings to our Board over 40 years of experience in senior management and financial operations at communications technology companies, as well as his background as a corporate attorney. Mr. Everett was named chief financial officer of the year by San Francisco Business Times in 2007 and is admitted to the State Bar of California and the New York Bar. From May 2007 until his retirement in December 2008, Mr. Everett served as vice president of finance at Cisco Systems, Inc. From April 2003 to May 2007, Mr. Everett was chief financial officer of WebEx Communications, Inc., a web collaboration service provider that was acquired by Cisco. From 2001 to 2003, Mr. Everett served as chief financial officer of Bivio Networks, Inc., a network appliance company. He currently serves on the advisory boards of Moxtra, Inc. and Zuora, Inc. and as chair and trustee of the Santa Fe Chamber Music Festival. Mr. Everett holds a Juris Doctor from the University of Pennsylvania Law School and a Bachelor of Arts in History from Dartmouth College.

Kira Makagon

Ms. Makagon brings to the Board extensive experience in global platform strategy, technology, cybersecurity, operations and high technology executive leadership. Since July 2019, Ms. Makagon has served as executive vice president and chief innovation officer at RingCentral, Inc., a publicly-held provider of cloud-based global collaborative communications solutions, and previously served as RingCentral’s executive vice president of innovation from August 2012 to July 2019. From January 2012 to July 2012, Ms. Makagon served as the senior vice president of products of iCrossing, a global digital marketing agency owned by Hearst Corporation. From June 2009 to December 2011, she held various executive leadership roles at Red Aril, Inc., an online media technology company, serving as founder, chief executive officer and member of the board of directors from June 2009 to April 2010, and president from April 2010 to December 2011. Prior to joining Red Aril, Ms. Makagon held various executive leadership roles at NebuAd, Inc., an online data and media company, serving as co-founder and president from September 2006 to July 2008, chief executive officer from August 2008 to December 2008, and consultant and board member from January 2009 to May 2009. Ms. Makagon holds a Bachelor of Science in computer science and a Master of Business Administration from the University of California, Berkeley.

Michael Matthews

Mr. Matthews is a marketing and business strategy executive with significant exposure to the telecommunications industry and to global markets. Mr. Matthews brings to our Board over 30 years of experience in the technology industry, and a strong background in telecommunications, software, technology and innovation. Mr. Matthews currently serves as an advisor to the TMForum, a global trade association with over 850 member companies including communication service providers, digital service providers and enterprises. Since January 2016, Mr. Matthews has served as chief executive officer and chairman of AwareX, Inc., a privately-held software technology company. From January 2012 through September 2013, Mr. Matthews served as chief corporate development officer for the information technology company AGT International GMBH, where he was responsible for AGT’s research and development, new business ventures and marketing. From September 2008 to December 2011, Mr. Matthews served as head of strategy and business development at Nokia Siemens Networks, a telecommunications company, where he directed the company’s strategic planning and investments, mergers and acquisitions program and strategic alliances and partnerships. Mr. Matthews has a degree in Civil Engineering from the University of Queensland, Australia.

Kevin Peters

Mr. Peters brings to our Board a wealth of leadership experience gained over the course of a 28-year career with AT&T, one of world’s largest communications companies. Since February 2018, Mr. Peters has served as president and chief executive officer of NetNumber Inc., a privately-held technology company. Mr. Peters formerly served as executive vice president, global customer service for AT&T, Inc., from 2012 until his retirement in 2014. Mr. Peters joined AT&T in 1986, and held various functional roles, including in information technology, sales, engineering and finance. Since retiring, Mr. Peters has provided advisory services to a number of companies, including Accenture, J&L Group, the Howe School of Business, and Stevens Institute of Technology. In addition to the other current directorships described, Mr. Peters also currently volunteers and serves on the board of directors of the Crandon Lakes Country Club and the Yogi Berra Museum and Learning Center. Mr. Peters holds a Master of Business Administration with honors (Beta Gamma Sigma) from Columbia University, a Master of Science in Telecommunications Engineering from Stevens Institute of Technology and a Bachelor of Science in Psychology from Fairfield University, and attended the Harvard University Advanced Management Program.

J. Daniel Plants

Mr. Plants brings to our Board extensive experience as a successful investor, director and advisor to public companies. Currently, Mr. Plants serves as chief investment officer of Voce Capital Management LLC, an investment advisor that he founded in 2011. Mr. Plants also serves on the board of directors of Cutera, Inc. Mr. Plants brings to our Board extensive experience as a successful investor, director and advisor to public companies. Currently, Mr. Plants serves as chief investment officer of Voce Capital Management LLC, an investment advisor that he founded in 2011. From July 2007 until May 2009, Mr. Plants served as managing director and head of communications technology and media for Needham & Company LLC, an investment banking and asset management firm. Prior to joining Needham & Company, Mr. Plants held a number of executive leadership roles at investment banking firms Goldman Sachs and JPMorgan Chase. Mr. Plants also served on the board of directors of Destination Maternity Corporation, a maternity apparel retailer, from November 2014 until December 2016. Mr. Plants holds a Juris Doctor from the University of Michigan Law School and a Bachelor of Arts in economics from Baylor University. Mr. Plants is also admitted to the New York Bar.

Carl Russo

Carl is president and CEO of Calix and a member of the board of directors. Carl has over 30 years of experience in the networking and telecommunications industries. From November 1999 to May 2002, Mr. Russo served as vice president of optical strategy and group vice president of optical networking of Cisco Systems, Inc. From April 1998 to October 1999, Mr. Russo served as president and chief executive officer of Cerent Corporation, which was acquired by Cisco. From April 1995 to April 1998, Mr. Russo served in various capacities, including as chief operating officer, at Xircom, Inc., which was acquired by Intel Corporation. Previously, Mr. Russo served as senior vice president and general manager for the hyperchannel networking group of Network Systems Corporation and as vice president and general manager of the data networking products division of AT&T Paradyne Corporation. Mr. Russo served on the board of directors of Vital Network Services, Inc., a privately-held company delivering network lifecycle services, and Xirrus, Inc., a privately-held company providing products that enable high-performance wireless networks. Mr. Russo attended Swarthmore College and previously served on its board of managers.

 

Calix is an equal opportunity workplace.