Tessian

Tessian is a cybersecurity company founded in 2013 by Tim Sadler, Ed Bishop, and Tom Adams, all alumni of Imperial College London. The company specializes in Human Layer Security, recognizing that human error can often lead to security vulnerabilities. Tessian empowers employees to work securely and efficiently, ensuring that productivity is not compromised. The company offers a variety of services and products aimed at protecting organizations from email threats, including data exfiltration, accidental data loss, business email compromise, and phishing attacks. Tessian's technology leverages machine learning to automatically prevent data breaches and security threats caused by human mistakes. Its platform is designed to integrate seamlessly into employees' workflows, minimizing disruption while enhancing security. With offices in San Francisco and London, Tessian serves organizations globally. The company is supported by notable investors such as Sequoia, Accel, March Capital, and Balderton, and has partnered with Proofpoint to strengthen defenses against advanced phishing threats.