This is the Tessian pitch deck to raise a $42m series-b round in 2019.
About
Tessian’s mission is to secure the human layer. Using machine learning technology, Tessian automatically stops data breaches and security threats caused by human error – like data exfiltration, accidental data loss, business email compromise, and phishing attacks – with minimal disruption to employees’ workflow. As a result, employees are empowered to do their best work, without security getting in their way.
Founded in 2013, Tessian is backed by renowned investors like Sequoia, Accel, March Capital, and Balderton, and has offices in San Francisco and London.
The picture shows two young men working on makeshift desks in their London flat.
It was enough to grab the attention of one of Silicon Valley’s biggest venture-capital funds, Sequoia Capital, which led the round for the UK tech startup Tessian earlier this year. The pitch deck had many more slides in it, of course. But that one stuck out.
“I loved this slide and the story behind it,” Matt Miller, a partner at Sequoia Capital, told Business Insider. “The Tessian founders walked away from lucrative careers to pursue their passion of building a human-centric security company. That move, and their early endurance, showed grit and gave us insight into the types of people we’d be working with if we backed the company. The grit of this team, the market opportunity in human-centric security, and enthusiasm of their customers convinced us to invest.”
Tessian has raised $58.7 million to date and was founded by three university friends in London with the intention of making tech security more robust.
Tessian’s tech is designed to prevent accidental emails with confidential information going to the wrong recipients, spear phishing, and other forms of fraud. Tessian calls the current email system “like driving a car without a seatbelt.”
The slide shows two of the company’s founders, Ed Bishop, left, and Tom Adams working on building Tessian in a small living room in their flat in Hammersmith, West London, where they lived.
Alongside the regular offering to investors, Tessian included a more personal view of life in a growing company in its $42 million Series B deck.
Funding rounds
|
Announced Date
|
Transaction Name | Number of Investors | Money Raised | Lead Investors |
| Aug 10, 2021 | Series C – Tessian | 3 | £6.5M | — |
| May 25, 2021 | Series C – Tessian | 6 | $65M | March Capital |
| Jan 25, 2019 | Series B – Tessian | 1 | — | — |
| Jan 16, 2019 | Series B – Tessian | 4 | $42M |
Sequoia Capital
|
| Jun 17, 2018 | Series A – Tessian | 8 | $13M |
Accel, Balderton Capital
|
| Apr 4, 2017 | Seed Round – Tessian | 6 | $2.7M |
Accel, LocalGlobe
|
| Jul 15, 2016 | Seed Round – Tessian | 2 | £300K | — |
| Jun 30, 2015 | Pre Seed Round – Tessian | 8 | £217K | — |
| Apr 1, 2014 | Seed Round – Tessian | 2 | £130K | — |
Pitch deck review summary
Slide by slide review

Deck Collection
See the rest of the collection here:
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