Tessian

Tessian builds machine learning technology to secure the human layer and prevent accidental data loss in enterprises.

San Francisco, CA, USA—Founded 2013

£52.5MTotal raised

Tessian develops human layer security software that predicts and stops advanced threats caused by human error across enterprise communication channels. Founded in 2013, the firm operates offices in San Francisco, Boston and London.

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Cash, assets and headcount from Tessian's latest Companies House filing — with year-on-year movement, free with a Winfred account.

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Founders

Tim Sadler

CEO and co-founder

Tim previously co-founded and led Tessian through its acquisition by Proofpoint. He also serves as a Sequoia Capital Scout and limited partner at firedrop.