Skip navigation

Making Security Simple Means Making Security Effective

Our mission is to be the worldwide leader in secure access for companies of all sizes. Duo Security protects organizations against data breaches by ensuring only legitimate users and appropriate devices have access to sensitive data and applications - anytime, anywhere.

We want to be the most loved company by our customers...

Duo was founded with the belief that security can only be effective if it is easy to use. Through that vision, Duo has built a world-class security platform that is actually enjoyable to use. Duo supports thousands of customers and millions of users in organizations like Accenture, Boston Medical, Emblem Health, Facebook, NASA, Toyota, Twitter, Virginia Tech, Yelp and others, and enjoys the highest NPS score in the industry.

Duo was founded by CEO Dug Song, and CTO Jon Oberheide, two respected pioneers in the security community. The company has offices in Ann Arbor, San Mateo, Austin and London.

...while also being the most loved by our employees.

Duo is the fastest growing SaaS security company, tripling year over-year for three years in a row. We do this by creating a company that focuses on customer satisfaction and employee innovation.

Every employee makes a difference at Duo. From developing new ways to prevent security breaches to helping customers maintain their own success, we're always looking for ways to improve. It's an environment where you can pursue your own ideas about how to build a great business. We pride ourselves on having an open, collaborative environment where people can do great work, learn a lot and have fun.

Our Leadership

From Silicon Valley to London to Ann Arbor, Duo’s leaders hail from top information security and technology firms with a commitment to driving growth and innovation.

  • Dug Song
    CEO & Co-Founder

    Dug has a history of leading successful products and companies to solve pressing security problems. Dug spent 7 years as founding Chief Security Architect at Arbor Networks, protecting 80% of the world’s Internet service providers, and growing to $120M+ annual revenue before its acquisition by Danaher. Before Arbor, Dug built the first commercial network anomaly detection system (acquired by NFR / Check Point), and managed security in the world’s largest production Kerberos environment (University of Michigan).

  • Jon Oberheide
    CTO & Co-Founder

    Jon is a well-known security expert and researcher. While his research interests span across the security domain, he has deep expertise in mobile security, cloud security, and malware analysis. Jon attended the University of Michigan for a BS, MS, and PhD in Computer Science, and has held positions at Merit Network and Arbor Networks.

  • Zack Urlocker
    Chief Operating Officer

    Zack leads product, marketing, sales, and customer success at Duo Security. In his previous role as COO at Zendesk, Urlocker launched the company’s enterprise strategy and hired key sales and marketing executives, growing revenue by approximately 10x prior to its IPO in 2014. Urlocker has held senior executive positions at high-growth companies like Zendesk and MySQL, helping them achieve billion dollar valuations by disrupting mature technology markets like help desk software and database software.

  • Paul DiMarzo
    Chief Financial Officer

    Paul has more than 25 years of experience as a finance and accounting professional. He has served as a member of the senior management team for six venture capital financed technology companies in Boston and Ann Arbor: Abuzz Technologies,, WinWin Technologies, Assay Designs, Inc., Molecular Imaging, Inc., and Duo Security. Paul was Manager of Financial Reporting and Analysis for Sodexho-Marriott through its initial public offering in 1996.

  • Raffaele Mautone
    Chief Information Officer

    Raffaele has over 16 years of Security experience in large and start-up organizations. He has deep expertise in Business Operations as well as running an IT organization. He attended Eastern Michigan University for a BA in Communications and held positions at Dell, McAfee and most recently FireEye.

  • Lisa Paul
    VP of Customer Success

    Lisa Paul is Duo Security’s Vice President of Customer Success where she is responsible for the company’s customer support, business operations, and customer success teams. Prior to joining Duo, Lisa was Head of Sales Infrastructure at Google. She has also served as Director of Information Systems & Services at General Motors and held leadership positions at information technology consulting firms such as Xpedior and Accenture.

  • Jim Cyb
    SVP of Worldwide Sales

    Jim Cyb heads up worldwide sales for Duo Security. Cyb was most recently the Vice President of Sales at Zendesk, where he achieved 5x customer growth with 14x revenue growth leading up to the company’s Initial Public Offering in May 2014. Previously Jim served in senior roles in technical sales, products and marketing.

  • Jeff Wiss
    VP of Corporate Marketing

    Jeff comes to Duo Security from DataStax where he served as Vice President of Corporate Marketing. Previously, Jeff was Vice President of Demand Generation at Zendesk. Jeff also headed up Product Marketing for the MySQL product line at Oracle since its acquisition of Sun Microsystems where he headed up MySQL marketing.

  • Chester Kustarz
    VP of Engineering

    Chester leads product engineering and technical operations at Duo Security. Prior to Duo he developed software products for multiple industries including network security, pharmaceutical, healthcare, and telecommunications. Chester holds a B.S.E. in Computer Engineering from University of Michigan.

  • Ash Devata
    VP of Products

    Ash is responsible for product and Go-To-Market strategy at Duo. Most recently, he managed the enterprise solutions portfolio at RSA, which helped customers solve use cases in GRC, DLP, SOC, SIEM, security analytics and vulnerability management. Ash also helped build and launch more than a dozen cybersecurity products, including four $100M+ revenue products, at RSA, EMC, and Cisco in the last ten years.

  • Henry Seddon
    VP, EMEA

    Henry Seddon heads up operations in Europe, the Middle East, and Africa. Seddon was most recently the Chief Strategy and Marketing Officer for 1E. Prior to 1E, Seddon was part of the leadership team at QlikTech, responsible for Global Marketing, helping QlikTech through rapid growth becoming one of Europe’s most successful technology IPO’s. Previously, Seddon has served in senior technical, sales and marketing roles at Siebel, PeopleSoft and UGS.

  • Ambrosia Vertesi
    VP, People

    Ambrosia is our global Vice President of People. She was most recently Vice President of Talent at Hootsuite, where she spearheaded the company’s hyper growth - from twenty to nearly a thousand employees with various top employer recognitions. In addition to her role with Duo, Ambrosia is the co-founder of Open Source HR #HROS. An industry leader in emerging practices such as social hr and employer branding, she most recently keynoted at Linkedin Talent Connect and HR Tech World Conference. This year she will be taking stage at HR Tech Fest 2016, HRMA 2016, SHRM Annual 2016, Australasian Talent Conference 2016, and ERE Recruiting Conference 2016. Recognized as one of the “Top 16 Influencers of 2016” in employer brand, she is a strong advocate for social HR. Connect with her on Twitter: @hambrody and LinkedIn.

Our Investors

A diverse team of investors continually invest in our growth, year over year, to ensure continual improvements on our security solution as we expand internationally as a company.

  • benchmark logo
  • google ventures logo
  • redpoint logo
  • true ventures logo
  • radar partners logo

Want to join the team?