KnowBe4 vs Expel
Side-by-side comparison of AI visibility scores, market position, and capabilities
KnowBe4 is the world's largest security awareness training platform, delivering simulated phishing, compliance training, and human risk management to 65,000+ organizations.
About
KnowBe4 is a cybersecurity company headquartered in Tampa, Florida that operates the world's largest security awareness training and simulated phishing platform, serving over 65,000 organizations across 11 million users. Founded in 2010 by Stu Sjouwerman, the company was built on the thesis that the human element — employees who click phishing links, reuse passwords, and inadvertently install malware — represents the primary attack vector in the majority of successful breaches, and that continuous, measurable security awareness training combined with simulated phishing exercises is the most effective way to reduce this human risk. KnowBe4 went public in 2021 and was taken private by Vista Equity Partners in 2023 in a transaction valued at approximately $4.6 billion.
Expel is a Forrester Wave Leader in MDR with 5/5 scores across 15 criteria, providing 24/7 AI-powered threat detection and response across cloud, endpoint, identity, and network.
About
Expel is a Herndon, Virginia-based managed detection and response (MDR) company founded in 2016 that provides 24/7 security monitoring, threat detection, and incident response as a managed service. Rather than replacing a customer's existing security tools, Expel integrates with the tools organizations already have — SIEMs, EDRs, cloud platforms, and identity providers — and applies AI-powered automation and expert human analysis to triage alerts and respond to threats around the clock.
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