Duo Security
Duo Security

Duo Security

Measured by AhrefsDR84Ahrefs DR: 84/100. Top 25%. Measured by Ahrefs. Median 44.Measured by StartupHub.aiAgent64Agent Readiness: 64/100. Top 25%. Measured by StartupHub.ai. Median 41.Measured by Google PageSpeedSpeed56Site Speed: 56/100. Below median. Measured by Google PageSpeed. Median 62.Measured by StartupHub.aiTrust95Data Trust: 95/100. Top 25%. Measured by StartupHub.ai. Median 61.

Provider of zero trust security and multi-factor authentication solutions for organizations.

2010Active475Ann Arbor, United States

About

Duo Security provides comprehensive identity security and multi-factor authentication (MFA) solutions, including identity and access management, phishing-resistant MFA, and identity intelligence. Their platform is designed to secure access for users and devices, protecting organizations from small businesses to enterprises and government entities. Duo aims to offer security-first IAM that is both effective against attackers and user-friendly.

Key facts

Website
duo.com
Headquarters
Ann Arbor, United States
Founded
2010
Employees
475
Total funding
$107M (Series C)
Business model
B2B

Duo Security pricing

Plans and prices published by Duo Security
PlanPrice
FreeUp to 10 users, Strong MFA, Seamless integrations$0 / month
EssentialsEverything in Free, plus Duo Directory, Phishing-resistant MFA, Complete passwordless authentication$3 / month
AdvantageEverything in Essentials, plus Cisco Identity Intelligence with cross-identity visibility, ISPM and ITDR, Duo Passport, Session theft protection$6 / month
PremierEverything in Advantage, plus complete Zero Trust access, VPN-less remote access to private resources via Duo Network Gateway, Complete device trust with endpoint protection check$9 / month

Prices per user per month. 30-day free trial available, activate in minutes, pay with credit card. For under 100 users licenses purchased in increments of 10, for over 100 users in increments of 25.

Plans as published by Duo Security, checked September 2026. Current prices on duo.com

Funding rounds

Funding rounds raised by Duo Security
DateRoundAmountLead investors
15 Sept 2015Series C$72MMeritech Capital Partners
1 Apr 2014Series B$22MJeff Dean
19 Sept 2012Series A$12MTrue Ventures
20 Jul 2011Seed$1MTrue Ventures

Tech stack

Detected on duo.com, last scanned 29 Oct 2026.

Compliance
SOC 2, HIPAA, PCI DSS, GDPR
Support
Khoros
CMS / Builders
Salesforce
CDN
AWS CloudFront
Hosting
AWS
Email provider
Cisco IronPort, Google Workspace
Email marketing
Adobe Marketo
Status page
Statuspage

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Frequently asked

Is Duo Security trustworthy and reputable?

StartupHub's Data Trust & Reputation score for Duo Security is 95 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.

How much funding has Duo Security raised?

Duo Security has raised a total of $107M in funding. The most recent round on record is Series C.

How many employees does Duo Security have?

Duo Security has approximately 475 people on record.

SEC filings, insider activity, nonprofit links and pay benchmarks for Duo Security:

Company details: from public sources. Funding: no announced round on file. Ownership: not yet claimed by the company. Scores: measured by named tools; each links to its method. Our rules