About Tim Sadler

Tim Sadler is the CEO and co-founder of CheckRecipient, a next generation email security platform which uses machine learning to predict when emails are being sent to the wrong people. Some of the world's largest organisations across the financial and legal sectors are using CheckRecipient and in the past 6 months the company has been crowned "Best Security Startup" by WIRED, "Best Machine Intelligence Startup" by Legal Geek and "Best Startup - Gold Category" by Info Security Products Guide. He was recently listed as one of Forbes "30 Under 30" in European Technology for 2017 Tim Sadler is the Chief Executive Officer and co-founder of human layer security company Tessian. After a career in investment banking, He and his co-founders started Tessian in 2013, creating a cybersecurity solution that uses machine learning to protect people from risks on email like data exfiltration, accidental data loss and phishing. Tim Sadler has since built the company to over 160 employees in offices in San Francisco and London, and raised over $60 million from leading venture capital funds. He was listed on the Forbes 30 Under 30 list in technology.  Tessian was acquired by Proofpoint in December 2023. Angel investing in amazing founding teams in the US and Europe, including: * Farewill (Series A) * Switchd (Seed) * SenseOn (Seed) * Nomio (Pre-Seed) * Atlas ML / Papers With Code (Seed) * AlertFusion (Pre-Seed) * Riff (Pre-Seed) * Paid (Seed) * Beam (Seed) * HumanLoop (Seed) * Slerp (Seed) * Mote (Pre-Seed) * M3ter (Seed) * Tillion (Seed) * Vektor (Pre-Seed) * Incident.io (Seed) * Lottielab (Seed) * Loxo (Seed) * Bloop (Seed) * Athenian (Seed) * DeepOpinion (Seed) * Thirdfort (Series A) * Gravity Sketch (Series A) * Teleskope (Seed) * LightDash (Seed) * Omnea (Seed) * Surfboard (Seed) * Kubeark (Seed) * Soveren (Seed) * Userled (Seed) * Relay (Seed) * Natter (Seed) * Tracebit (Pre-Seed) * Filigran (Seed) * Borderless (Seed) * Skippr (Seed) * StackOne (Seed) * Orchestra (Pre-Seed) * Poolside AI (Seed) * Harmonic Security (Pre-Seed) * Wordsmith (Seed) * Platformed (Seed) * 11X (Series A) * Prometheux (Seed) * Youda (Pre-Seed) * Invariant Labs (Seed) * Civic Marketplace (Seed) * Atlas Security (Pre-Seed) * Cakewalk (Seed)