Tessian - Company Profile | Vettery


Tessian's mission is to secure all human-digital interactions within the enterprise. Today, our products use stateful machine learning to protect people using email and to prevent threats like spear phishing, accidental data loss due to misdirected emails, data exfiltration and o

London, ENG
51-200 Employees
Information Tech

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Tessian is a machine intelligent email security platform to automatically prevent security threats such as misaddressed emails, data loss and non-compliance. Tessian uses machine learning to understand normal email communication patterns in order to automatically identify email security threats in real time, without the need for end user behaviour change or pre-defined rules and policies. Tessian makes email safe at some of the world's largest enterprises across the financial, legal and technology sectors.

We currently have 170 employees globally and work within the Cyber and Information security industry. We started off with our 3 founders Ed (CTO), Tim (CEO) and Tom (Head of Client Side Engineering) building our initial product in 2013. In 2015, we brought on our first clients, in 2017 we gained our seed funding from and raised 2 million! Tim was also named in Forbes 30 under 30. In 2018, we went through series A and raised 13 million backed by Accel and Balderton Capital. In 2019, backed by Sequoia, we went through our series B and raised 42 million.

Benefits & perks

Professional support
Lunch & Learn sessions, weekly all-hands and have a growing Tessian library
Vacation & time off
We are a flexible working space. Everyone gets one week to work remotely in addition to ample vacation days

Office locations

London, ENG, GB
San Francisco, CA, US

Tech stack

Application & data
GitHub, Python, Typescript, PostgreSQL, Clubhouse, .NET Core, Concourse, SQL, JavaScript, Node.js, .NET, C#, React.js, Natural Language Processing (NLP), Docker, Terraform
AWS (Amazon Web Services), Amazon EC2

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