KnowBe4 provides a platform for security awareness training and AI agent security to reduce human risk.
- Based in
- Clearwater, United States
- Ownership
- Owned by Vista Equity Partners since 2022
About KnowBe4
KnowBe4 provides a platform for reducing human risk and securing AI agents. It sells security awareness training, email and collaboration security, AI defence agents, and risk management tools. The company serves over 70,000 organisations worldwide, including IT, information security, data privacy, compliance, and human resources teams. Its products aim to change employee behaviour and protect against phishing, malware, and social engineering attacks. KnowBe4's platform combines training with email security and AI-driven defence. It uses behavioural data and real-time insights to detect risky actions and deliver personalised training. The company also offers automated phishing simulations, vishing simulations, and tools to block threats before they reach the inbox. Its AI defence agents automate administration and content personalisation, allowing security teams to focus on strategic decisions.
Products
- Security Awareness TrainingDelivers personalised education and realistic phishing simulations to help people recognise threats.
- Email & Collaboration SecurityProvides layered cloud defences that stop phishing, malware, and social engineering attacks.
- AI Defense AgentsUses behaviour-based intelligence to detect risky actions and stop them with automated responses.
- Risk ManagerOffers real-time visibility, automated threat detection, and active control over AI agent workforces.
- DefendAn email threat defence platform that uses behavioural AI to stop AI-generated phishing and business email compromise.
- AIDAA suite of AI agents that automates administration and content personalisation for security awareness training.
Ownership and deals
Companies owned by Vista Equity Partners lists both in the directory, with the deals on record.
- Raised $1.5bn in debt fundingInvestors JP Morgan Chase and Kohlberg Kravis RobertsReport on the KnowBe4 funding round of July 2025 (opens in a new tab)
- KnowBe4 acquired Egress Software Technologies LtdReport on KnowBe4 buying Egress Software Technologies Ltd (opens in a new tab)
- Vista Equity Partners acquired KnowBe4 for $4.6bnReport on Vista Equity Partners buying KnowBe4 (opens in a new tab)
- KnowBe4 acquired SecurityAdvisor for $80mReport on KnowBe4 buying SecurityAdvisor (opens in a new tab)
- KnowBe4 acquired MediaPROReport on KnowBe4 buying MediaPRO (opens in a new tab)
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.
Companies KnowBe4 owns
See companies owned by KnowBe4 for the category and head office of each, and the deals behind them.