Startup profile · funding coverage
Duo Security funding, valuation and investors
Cloud multi-factor authentication and zero-trust access platform — acquired by Cisco.
Keep track of Duo Security
Save this profile to your VCT watchlist for a quick return.
Funding, valuation & investors
Answer-first snapshotLatest funding
Not publicly disclosed
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
Not publicly disclosed
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
acquired
acquired · Ann Arbor, MI
Overview
Duo Security provides cloud-delivered multi-factor authentication and zero-trust access (Duo Beyond). Founded 2010 in Michigan by Dug Song and Jonathan Oberheide; headquartered in Ann Arbor. Cisco announced intent to acquire Duo on Aug 2, 2018 and completed the $2.35B cash deal on Oct 1, 2018. Duo continues as part of Cisco’s security portfolio with lasting Ann Arbor presence from the acquisition era.
Why Duo Security is interesting
Ann Arbor’s defining security exit: Cisco completed Duo acquisition for $2.35B cash (Oct 1, 2018); company was HQ’d in Ann Arbor at deal.
Product & use cases
Cloud MFA and device-trust access controls for applications — now within Cisco Secure.
- Workforce MFA
- Zero-trust application access
- Education/enterprise SSO hardening
Key facts
- Acquired by Cisco for $2.35B cash (completed Oct 1, 2018)
- HQ at acquisition: Ann Arbor, MI
- Founders: Dug Song, Jonathan Oberheide (2010)
- Product: MFA + zero-trust access (Duo Beyond)
Funding history (newest first)
Acquisition
2018-10 $2.35B- Cisco (lead)
Competitive landscape
Edge: Usability-led MFA that scaled to Cisco acquisition from Ann Arbor.
-
Okta direct
Identity platform competitor.
-
Microsoft Entra MFA incumbent
Suite MFA.
-
Ping Identity direct
Enterprise identity.
Industries
FAQs about Duo Security
Practical answers founders, operators, and investors typically search for.
Last updated:
Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.