Duo Security

Ann Arbor, United States Founded: 2010 • Age: 16 yrs Unicorn Acquired By Cisco
SSO and MFA-based IAM solutions are provided for security.

About Duo Security

Duo Security is a Technology company based in Ann Arbor (United States) founded in 2010 by Dug Song, and was acquired by Cisco in August 2018. SSO and MFA-based IAM solutions are provided for security. It operates on a SaaS (Software-as-a-Service) and Subscription Services model. Duo Security has raised $120 million across 8 funding rounds from investors including Cisco, FJ Labs and Cisco Investments. The company has 434 employees. Duo Security was last valued at $1.8 billion in October 2018. Its website duo.com draws about 1.1 million monthly visits. Duo Security offers products and services including Duo Directory, Multi-Factor Authentication (MFA), Single Sign-On (SSO), Passwordless, and Cisco Identity Intelligence. Its focus areas include Cybersecurity and Identity and Access Management. Its legal entity is Cisco Systems, Inc. Its competitors include Okta, Ping Identity and JumpCloud; 3 of its 3 listed competitors have raised funding.

Company details

Comprehensive identity security solutions are offered by Duo Security, focusing on multi-factor authentication (MFA), single sign-on (SSO), and phishing-resistant technologies. Services are tailored for small to medium businesses, enterprises, government entities, and managed service providers. Coverage spans industries such as higher education, finance, healthcare, and technology. Solutions like Duo Directory and Cisco Identity Intelligence are designed to ensure secure access management and threat detection. Zero trust security and compliance solutions are also integrated to address modern cybersecurity challenges across diverse organizational needs.

  • Headquarters Ann Arbor, United States
  • Employees 434
  • Founders Dug Song
  • Stage Acquired
  • Sectors
    Technology
  • Website category Computers Electronics and Technology · Computer Security
  • Phone
    β€’β€’β€’β€’ β€’β€’β€’β€’
  • Website duo.com
  • Social LinkedIn X Facebook Instagram
  • Acquired by Cisco (Aug 2018)
  • Legal Name Cisco Systems, Inc.
Key Metrics
  • Total Equity Funding
    $120M (USD)

    in 8 rounds

  • Latest Funding Round
    $70M (USD), Series D

    Oct 2017

  • Investors
    Cisco

    & 19 more

  • Employee Count
    434
  • Acquired by
    Cisco

    (Aug 2018)

Products & Services of Duo Security

Duo Security offers a comprehensive portfolio of products and services, including Duo Directory, Multi-Factor Authentication (MFA), Single Sign-On (SSO), Passwordless, and Cisco Identity Intelligence.

Duo Directory
Identity and Access Management

Identity management solution for secure access is provided.

Multi-Factor Authentication (MFA)
Identity and Access Management

Enhanced security through multiple authentication methods is ensured.

Single Sign-On (SSO)
Identity and Access Management

Seamless access to multiple applications is facilitated here.

Passwordless
Phishing-Resistant MFA

Secure login without passwords is enabled for users.

Cisco Identity Intelligence
Identity Intelligence

Threat detection and response capabilities are offered comprehensively.

Apps and channels of Duo Security

Duo Security publishes 2 mobile apps with over 10M+ downloads.

Duo Mobile
Google Play Business Everyone Free
Developer: Duo Security LLC
View on Google Play
Duo Mobile
App Store Business 4+
Developer: Duo Security LLC
View on App Store

Funding Insights of Duo Security

Duo Security has successfully raised a total of $120M across 8 strategic funding rounds. The most recent funding activity was a Series D round of $70 million completed in October 2017. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.

  • Total Funding $120M
  • Total Rounds 8
  • Last Round Series D β€” $70M
  • First Round $1M

    (Aug 2010)

  • Investors Count 20

All 8 funding rounds of Duo Security with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.

DateAmountTransaction NameValuationLead InvestorsInvestors
Oct 2017$70MSeries D$1.17BMeritech, Lead Edge Capital
Apr 2015$30MSeries C–Redpoint Ventures
Sep 2014$12MSeries B––
Aug 2013$999,997Series A––
–
Feb 2012$6MSeries A––
Feb 2012$5MSeries A–Google Ventures
Aug 2010$1MSeed––
Aug 2010$1MSeed––
Valuation history
DateValuationStage
Oct 2017$1.17Bβ€’β€’β€’β€’β€’β€’β€’β€’

Last known valuation $1.8B (Oct 2018). 20 investors in total: 20 institutional.

Investors in Duo Security

Duo Security has secured backing from 20 investors, including venture fund and institutional investors. Prominent investors backing the company include Cisco, FJ Labs and Cisco Investments.

All
Venture Fund
Institutional
InvestorDescriptionFounded YearDomainLocation
Private equity investments are directed toward US-based companies.
meritechcapital.comPalo Alto, United States
Growth-stage tech investments are targeted in the US and Japan.
geodesiccap.comFoster City, United States
Venture capital investments in technology startups and entrepreneurs.
indexventures.com
Redpoint Ventures is engaged in venture capital investments.
redpoint.comWoodside, United States
Venture capital firm supporting AI founders through investments and community.
trueventures.com
Canadian private equity investments are managed by Radar Capital.
radarcapital.caToronto, Canada
Corporate backed venture capital fund investing in multiple sectors
gv.comMountain View, United States
US tech ventures are invested in by Resonant Venture Partners.
resonantvc.comAnn Arbor, United States
Early to growth-stage firms are invested in by Workday Ventures.
ventures.workday.comSan Francisco, United States
Lead Edge Capital is focused on growth equity investments in technology.
leadedge.comNew York, United States
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Investor details for Duo Security

The complete investor list, round-by-round participation and investor portfolios require an active premium plan.

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Verified entity values are shown only after access is granted.

People of Duo Security

1005 people are tracked at Duo Security (398 in leadership, 10 in board & advisors, 597 in team); the tracked headcount is 434.

NameRoleGroup
Dug Song
FounderLeadership
Girish Parekh
SVP, CFO Global Sales & MarketingLeadership
Oliver Tuszik
EVP, Global Sales and Chief Sales OfficerLeadership
Liz Centoni
EVP & Chief Customer OfficerLeadership
Joshua Merrill
Chief Technical ArchitectLeadership
Aman Singh
Senior Director, Supply ChainLeadership
Dejana Stankovic
Director, Web AI ExperiencesLeadership
Torunn Bækken
Business Development Manager/ Financial Sales Specialist/partner Account ManagerLeadership
Nirav P Shroff
Vice President, Business Development / Strategic PartnershipsLeadership
Alan Love
Vp, Global Revenue Operations LeaderLeadership
Zainab Mayungbe
Director Of Product ManagementLeadership
Joe Fenner
Director, Product MarketingLeadership
Ted Tsortos
Director, Sales Strategy & Planning (global Sales)Leadership
Scott Sprinkle
Senior Director, Solutions Engineering GES Central Area At Cisco SystemsLeadership
Phil Wolfenden
Vice President Customer ExperienceLeadership
Vukota Pekovic
General Manager Cisco Silicon One R&d Center SerbiaLeadership
Alice Qi
Director, Partner Sales & Business DevelopmentLeadership
Przemyslaw Kania
Vice President, Service Provider – EMEALeadership
Amy Quick
Partner Development & EnablementLeadership
Leo Lian
Senior Director, Business TransformationLeadership

985 more people are available in the full profile.

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Complete people profiles for Duo Security

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Timeline of Duo Security

5 dated milestones of Duo Security across 8 years, from founding to its latest funding, stage changes and deals.

  1. Founded Duo Security is founded.
  2. Funding First funding round of $1.0M.
  3. Funding Latest funding round, Series D, of $70.0M.
  4. Milestone Reaches Unicorn status.
  5. Exit Acquired by Cisco.

Competitors of Duo Security

Duo Security has 3 listed competitors in our database, 3 of them funded. They include Okta, Ping Identity and JumpCloud.

Company NameDomainFoundedHQ LocationTotal fundingEmployeesDescription
okta.com2009San Francisco, United States$228.5M5,908
Cloud-based identity management and authentication are provided for enterprises.
pingidentity.com2002Denver, United States$136.89M821
Cloud-based identity management solutions are provided for enterprises.
jumpcloud.com2012Boulder, United States$408.43M220
Cloud-based directory management for user and IT authentication is provided.
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Detailed competitors of Duo Security

The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.

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Web traffic of Duo Security

The website of Duo Security (duo.com) receives about 1.1M visits a month and ranks #67,137 among all websites worldwide, #7,972 in Computer Security.

  • Monthly visits
    1.1M

    ▲ 19.9% vs previous month

  • Unique visitors
    488.5K

    per month

  • Global rank
    #67,137

    among all websites

  • Category rank
    #7,972

    Computers Electronics and Technology · Computer Security

Similar websites

Websites whose visitors overlap most with Duo Security. Affinity shows how closely the audiences match.

WebsiteDomainAudience affinityMonthly visitsGlobal rankProfile
sailpoint.com
100%
623.3K#80,056View details
sonicwall.com
100%
532.3K#81,443View details
cloudflare.com
99%
37.5M#887View details
itarian.com
98%
374.8K#157,099View details
ninjaone.com
98%
1.4M#51,894View details
β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’.comβ€’β€’%β€’.β€’M#‒‒‒‒‒–
β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’.comβ€’β€’%β€’.β€’M#‒‒‒‒‒–
β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’β€’.comβ€’β€’%β€’.β€’M#‒‒‒‒‒–
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All 40 similar websites and full traffic analytics for Duo Security

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Verified entity values are shown only after access is granted.

Top companies in Cybersecurity & Data Protection

3 companies that operate in the same segment as Duo Security (Cybersecurity & Data Protection) in United States, ranked by their profile score on The Company Check.

CompanyDescriptionFoundedLocationTotal fundingRevenueEmployees
Cloud based website security solutions
2009San Francisco, California, United StatesUSD 332.1 MUSD 1.67 B7,330
Cybersecurity and zero trust solutions are delivered for secure networks.
2007San Jose, California, United StatesUSD 148 MUSD 3.35 B9,616
Cloud-based identity management solutions are provided for enterprises.
2002Denver, Colorado, United StatesUSD 136.89 MUSD 36.94 M821
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Related news about Duo Security

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Frequently Asked Questions about Duo Security

Duo Security was founded in 2010.

Duo Security is headquartered in Ann Arbor, United States. It is registered at Ann Arbor, Michigan, United States.

Duo Security is a funded company, having raised a total of $120M across 8 funding rounds to date. The company's 1st funding round was a Seed of $1M, raised on Aug 2010.

Duo Security has 434 employees.

Comprehensive identity security solutions are offered by Duo Security, focusing on multi-factor authentication (MFA), single sign-on (SSO), and phishing-resistant technologies. Services are tailored for small to medium businesses, enterprises, government entities, and managed service providers. Coverage spans industries such as higher education, finance, healthcare, and technology. Solutions like Duo Directory and Cisco Identity Intelligence are designed to ensure secure access management and threat detection. Zero trust security and compliance solutions are also integrated to address modern cybersecurity challenges across diverse organizational needs.

Duo Security's top competitors include Ping Identity, Okta and JumpCloud.

Duo Security offers Duo Directory, Multi-Factor Authentication (MFA), Single Sign-On (SSO), Passwordless, and Cisco Identity Intelligence.

Duo Security has 20 investors. Key investors include Cisco, FJ Labs, Cisco Investments, Meritech Capital, and Geodesic Capital.

The valuation of Duo Security is $1.8B as of Oct 2018.

Duo Security operates through Cisco Systems, Inc..

Yes. Duo Security was acquired by Cisco in August 2018.

Yes. Duo Security publishes Duo Mobile and 1 more app, with over 10 million downloads.

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