Tessian is constructing a new category of cybersecurity, protecting companies from an unaddressed, critical security risk factor—people. Tessian's Human Layer Security platform uses machine learning to understand human relationships and communication behavior in order to protect businesses from threats executed by people on email.

When We First Met
We first met Tim, Ed, and Tom in 2015 via CyLon, a London-based cybersecurity incubator. We were immediately impressed with their relentless ambition, scrappiness and vision for what Tessian could become. Tessian was raising a Seed round in London at the time, and much to our chagrin we couldn’t partner from afar and provide the same level of support we strive to offer our local seed companies. We settled for keeping in touch, and three years later, as Tessian expanded to the U.S., we eagerly pursued the chance to partner. More than their growth—their client list had expanded to include some of America and England’s largest financial and legal institutions—we were wowed by their service record. In their nearly four years as a company, they hadn’t lost a single customer. Soon after they landed here, we partnered on their Series B.

  • Founded 2013
  • Partnered 2018
  • Edward Bishop
  • Thomas Adams
  • Tim Sadler
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The Dentmakers.

Since 1972, we have partnered early and at every stage of growth with the founders of companies that now have an aggregate, public market value of over $3.3 trillion. Meet the companies below.

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