OverviewSuggest Edit

Tessian is a company that uses machine learning to automatically secure human-digital interactions within enterprises. Its solution is aimed at stopping data breaches and security threats caused by human error, including data exfiltration, accidental data loss, business email compromise, and phishing attacks. The company serves the legal, financial, and technology sectors.

TypePrivate
Founded2013
HQLondon, GB
Websitetessian.com
Employee Ratings4.6

Latest Updates

Employees (est.) (Jun 2021)174
Cybersecurity ratingBMore

Key People/Management at Tessian

Tim Sadler

Tim Sadler

Co-Founder & Chief Executive Officer
Ed Bishop

Ed Bishop

Co-founder & Chief Technology Officer
Sabrina Castiglione

Sabrina Castiglione

Chief Financial Officer
Nicolas Draca

Nicolas Draca

Chief Marketing Officer
Paige Rinke

Paige Rinke

People Director
Aaron Cote

Aaron Cote

Vice President of Global Sales
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Tessian Office Locations

Tessian has offices in London and San Francisco
London, GB (HQ)
3 Finsbury Ave
San Francisco, CA, US
535 Mission St 14th floor, San Francisco
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Tessian Financials and Metrics

Summary Metrics

Founding Date

2013

Tessian total Funding

$123.7 m

Tessian latest funding size

$65 m

Time since last funding

25 days ago

Tessian investors

Tessian's latest funding round in May 2021 was reported to be $65 m. In total, Tessian has raised $123.7 m. Tessian's latest valuation is reported to be $500 m.
View all funding rounds

Tessian Revenue

Market valuation

500.0m

Cash (31-Mar-2019)

30.5m

EV

469.5m
GBPFY, 2015FY, 2016FY, 2018FY, 2019

Cash

73.0k169.2k9.9m30.5m

Accounts Receivable

5.9k698.1k1.4m

Current Assets

78.9k172.6k11.0m33.2m
FY, 2015

Financial Leverage

1 x
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Tessian Operating Metrics

Tessian's Enterprise Customers was reported to be 350 in May, 2021.
May, 2021

Enterprise Customers

350
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Tessian Cybersecurity Score

Cybersecurity ratingPremium dataset

B

85/100

SecurityScorecard logo

Tessian Online and Social Media Presence

Embed Graph

Tessian News and Updates

Enterprise security firm Tessian raises $65M to accelerate platform development

Enterprise security firm Tessian Ltd. revealed today it has raised $65 million in new funding to accelerate platform development and hire more people. The Series C round was led by March Capital and included Accel, Balderton Capital, Latitude, Sequoia Capital and Schroder Adveq. The round was raise…

Security startup Tessian, which uses AI to fight social engineering, trousers $65M

In the latest chunky funding round out of Europe, UK-based email security startup, Tessian, has closed $65 million in Series C funding. The startup applies machine learning to build individual behavior models for enterprise email use that aims to combat human error by flagging problematic patterns w…

Tessian nabs $65M to solve cybersecurity’s ‘people problem’

Enterprise email security company Tessian has raised $65 million and announced plans to expand into communication conduits beyond email.

Tessian updates its intelligence platform to strengthen employee security behavior

Enterprise security firm Tessian Ltd., which sells tools that enable companies to assess the risk posed to their data and systems by their employees, is adding a new Human Layer Risk Hub to its platform. Tessian debuted its Human Layer Security Intelligence platform last year. It’s tools are design…

Tessian debuts its Human Layer Security Intelligence platform

Security firm Tessian Ltd. is launching a new tool to help companies assess the risk posed to their computer systems and data from current and former employees. Tessian’s Human Layer Security Intelligence platform also helps reduce the risk of accidental data loss, data exfiltration and advanced im…

London startup Tessian raised $42 million from Sequoia using this 1 pitch deck slide — and it's just a photo of the founders in their London flat

London startup Tessian has raised funding from some of the biggest names in VC including Accel and Sequoia.  The company's $42 million Series B earlier this year was partly successful because Sequoia Capital were impressed by Tessian's pitch deck and one slide of it in particular.  "The grit of th…
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Tessian Blogs

React Hooks at Tessian

The post React Hooks at Tessian appeared first on Tessian.

Lessons Learned From Raising Our Series C Via Zoom

The post Lessons Learned From Raising Our Series C Via Zoom appeared first on Tessian.

5 Reasons to Download Our Back to Work Security Behaviors Report

The post 5 Reasons to Download Our Back to Work Security Behaviors Report appeared first on Tessian.

US Legal Education Provider Spam Campaign Detected

The post US Legal Education Provider Spam Campaign Detected appeared first on Tessian.

Advanced Inbound and Outbound Threat Protection for an International Law Firm

The post Advanced Inbound and Outbound Threat Protection for an International Law Firm appeared first on Tessian.

8 Real-World Examples of Business Email Compromise (Updated 2021)

The post 8 Real-World Examples of Business Email Compromise (Updated 2021) appeared first on Tessian.
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Tessian Frequently Asked Questions

  • When was Tessian founded?

    Tessian was founded in 2013.

  • Who are Tessian key executives?

    Tessian's key executives are Tim Sadler, Ed Bishop and Sabrina Castiglione.

  • How many employees does Tessian have?

    Tessian has 174 employees.

  • Who are Tessian competitors?

    Competitors of Tessian include Opora, Solus and Smart Protection.

  • Where is Tessian headquarters?

    Tessian headquarters is located at 3 Finsbury Ave, London.

  • Where are Tessian offices?

    Tessian has offices in London and San Francisco.

  • How many offices does Tessian have?

    Tessian has 2 offices.