Duo Security

Duo Security is a company that provides security systems as cloud-based two-factor authentication to organizations. Its technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.

Employee Rating

Parent CompanyCisco
HQAnn Arbor, MI, US
Cybersecurity ratingAMore
Duo Security was founded in 2010 and is headquartered in Ann Arbor, MI, US

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Key People/Management at Duo Security

Dug Song

Dug Song

VP and General Manager, Cisco Co-Founder, Duo Security
Brian Verenkoff

Brian Verenkoff

Head of Technical Solutions Architects
Jon Oberheide

Jon Oberheide

Product CTO, Cisco Co-Founder and CTO, Duo Security
Brian Lindauer

Brian Lindauer

Director of Data Science and Engineering
Wendy Nather

Wendy Nather

Head of Advisory CISOs
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Duo Security Office Locations

Duo Security has offices in Ann Arbor, Austin, Detroit, San Francisco and in 4 other locations
Ann Arbor, MI, US (HQ)
123 N Ashley St
Austin, TX, US
804 Congress Ave
Detroit, MI, US
1420 Washington Blvd
San Francisco, CA, US
444 Townsend Street
London, GB
115 Houndsditch
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Duo Security Financials and Metrics

Summary Metrics

Founding Date


Total Funding

$121.5 m


In total, Duo Security had raised $121.5 m. Duo Security is a subsidiary of Cisco

Duo Security Operating Metrics

Y, 2014Y, 2015Y, 2016Feb, 2017Oct, 2017Y, 2017Feb, 2018

Annual Recurring Revenue

$10 m$31 m$73 m$100 m

Authentications per Month

300 m



Paying Customers

8 k10 k10 k
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Duo Security Cybersecurity Score

Cybersecurity ratingPremium dataset



SecurityScorecard logo

Duo Security Online and Social Media Presence

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Duo Security Company Culture

  • Overall Culture



  • CEO Rating



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Duo Security Blogs

What's the Buzz on Passwordless?

The passwordless future is sooner than you think. At Duo, we're building a passwordless authentication solution that’s as easy to set up as it is to use – with our world-class security baked in. Is passwordless a good choice for you, and how do you lay the foundation? Our experts have you covered.Wh…

The 2021 State of the Auth Report: 2FA Climbs, While Password Managers and Biometrics Trend

Duo Labs just released its third State of the Auth report, which takes stock of individuals’ experience and perception of 2FA in America and the U.K.Adoption of two-factor authentication has substantially increased since we began conducting this research in 2017. However, considering only 32% of res…

Expanding Duo’s International Footprint: New Data Centers Opening in Australia, Singapore and Japan

Organizations of all sizes and types are facing increasingly severe and complex security challenges. For the last ten plus years, we at Duo and Cisco have been on a mission to make it simple for businesses to easily secure access for their workforces and mitigate security risks. Today, I’m proud to …

User Group-Level Policy: The Sharpest Knife in the Drawer

Building a security strategy for a company is a balancing act. How do you protect your organization without imposing an unnecessary burden on your employees? If you put too many locks on the door, sooner or later, the window will start to look like a viable option.Using Duo’s Policy Engine empowers …

Lessons from a Former K-12 Teacher: How Duo Brings Cybersecurity to Head of the Class

As a former high school history teacher, I used to love teaching lessons that used technology. It allowed the class not only to learn facts, but also to practice their critical thinking skills — evaluating the reliability of a source, analyzing a variety of primary and secondary documents, and corro…

Teamwork Makes the Dream Work: Why We Thrive on Collaboration

From knocking out high-velocity sprints to successfully delivering key features, everyone on the Endpoint Health team here at Duo really feels like they’ve hit their stride. Handling customer issues quickly and efficiently, and having in-depth, successful technical conversations have become normal, …
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Duo Security Frequently Asked Questions

  • When was Duo Security founded?

    Duo Security was founded in 2010.

  • Who are Duo Security key executives?

    Duo Security's key executives are Dug Song, Brian Verenkoff and Jon Oberheide.

  • How many employees does Duo Security have?

    Duo Security has 683 employees.

  • Who are Duo Security competitors?

    Competitors of Duo Security include OneLogin, Cybereason and Feitian.

  • Where is Duo Security headquarters?

    Duo Security headquarters is located at 123 N Ashley St, Ann Arbor.

  • Where are Duo Security offices?

    Duo Security has offices in Ann Arbor, Austin, Detroit, San Francisco and in 4 other locations.

  • How many offices does Duo Security have?

    Duo Security has 8 offices.