Carl Russo
President and Chief Executive Officer
Roger Weingarth
Executive Vice President and Chief Operating Officer
Andy Lockhart
Senior Vice President, International Sales and Marketing
John Colvin
Senior Vice President, North American Sales and Marketing
Mark Dressler
Vice President, Major Account Sales
Nathan Harrell
Vice President, National Account Sales
Ken Grelck
Vice President Regional Sales, East and Canada
Skip Hirvela
Vice President Regional Sales, West
David Seda
Vice President, Field Marketing
Michael Ashby
Executive Vice President and Chief Financial Officer
Kevin Pope
Senior Vice President, Product Development
Todd Ortberg
Senior Vice President, Business and Market Development
Tony Banta
Senior Vice President, Global Manufacturing and Supply
Mehdi Bradaran
Vice President, Product and China Operations
Omar Ramadan
Vice President, Global Customer Services
Jill Von Berg
Vice President, Information Technology
Tish Rutledge
Vice President, Talent and Culture
Michael Ashby
Executive Vice President and Chief Financial Officer
Michael Matthews
Head of Strategy and Business Development, Nokia Siemens Networks
Carl Russo
President and Chief Executive Officer
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Mark Dressler, Vice President, Major Account Sales
Mark is vice president of major account sales for Calix. Mark leads sales groups focused on tier-one and tier-two US service providers as well as all service providers in the Caribbean and South America. Before joining Calix, Mark held a variety of senior sales, marketing, and business development roles at Nortel, most recently serving as director of market development for broadband networks. Prior to Nortel, Mark held various senior engineering and management positions in the software industry. Mark holds a BS in electrical engineering from Purdue University.
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