Tim Sadler is the Chief Executive Officer and co-founder of human layer security company Tessian. After a career in investment banking, Tim 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 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. Tim was listed on the Forbes 30 Under 30 list in technology.