KnowBe4 is a cybersecurity company that provides security awareness training and simulated phishing tests to organizations. The company was founded in 2010 by Stu Sjouwerman and is headquartered in Clearwater, Florida. KnowBe4 has over 30,000 customers in more than 170 countries. The company has been recognized by Gartner as a leader in the Magic Quadrant for Security Awareness Computer-Based Training for four consecutive years.