Tessian

📍 Boston, United States🗓 Founded 2013👥 49 employees💰 Last funded Jun 2023
Computer and Network Security🌐 tessian.com
Website LinkedIn
Tessian was acquired by Proofpoint. View the press release: https://www.proofpoint.com/us/newsroom/press-releases/proofpoint-closes-acquisition-tessian. To see what’s new, visit https://www.linkedin.com/company/proofpoint/. Tessian is a leading cloud email security platform that intelligently protects organizations against advanced threats and data loss on email, while coaching people about security threats in-the-moment. Using machine learning and behavioral data science, Tessian automatically stops threats that evade legacy Secure Email Gateways, including advanced phishing attacks, business email compromise, accidental data loss and insider threats. Tessian’s intelligent approach not only strengthens email security but also builds smarter security cultures in the modern enterprise. Founded in 2013, Tessian is backed by legendary investors such as March Capital, Sequoia, Accel and Balderton, and has been recognized as one of Fast Company’s Most Innovative Companies for 2022. Request a demo here: https://www.tessian.com/book-demo/
15
Total investors
2
Early stage
7
Mid stage
6
Late stage
2013
Founded

Investors

15 investors
All
Early stage
Mid stage
Late stage
Seed investors· 1
Scott Sage
Scott Sage
Co-founder and Partner at Crane Venture Partners
Seed Investor
mid stage
38 investments
Mar 2017
Angel investors· 1
Santiago Izaguirre
Santiago Izaguirre
M&A advisor | Investor | Harvard Business School Angels
Angel Investor
early stage
5 investments
Jul 2015
Early stage· 1
Ian Hamilton
Ian Hamilton
Entrepreneur : Investor : Board Member : Mentor
Investor and Board Member
early stage
7 investments
Jul 2015
Mid stage· 6
Jerome Billard
Jerome Billard
Lecturer, Consultant, Investment.
mid stage
Oct 2018
Suranga Chandratillake
Suranga Chandratillake
General Partner at Balderton Capital
Board Member
mid stage
24 investments
Jun 2018
Sam Myers-Shah
Sam Myers-Shah
Launching Products | Advising Startups on Funding & New Markets
mid stage
8 investments
Jun 2018
Luciana Lixandru
Luciana Lixandru
Partner at Sequoia Capital
Board Member
mid stage
21 investments
Mar 2018
Carlo Giovanni B.
Carlo Giovanni B.
Vice President at Accel
mid stage
18 investments
2018
Matthew Ridley
Matthew Ridley
Sustainability and Innovation at oneworld | Corporate Innovation | Sustainable Aviation | Venture Capital | FRAeS
Investor / Observer
mid stage
9 investments
Jul 2016
Late stage· 6
Damien Henault
Damien Henault
Managing Director & Partner, Forgepoint Capital International
late stage
28 investments
Jun 2023
Osman Khan
Osman Khan
CEO & Co-Founder Squared Circles Venture Studio I Founder Coach I Consumer Angel Investor
Investor & Advisor
late stage
30 investments
2023
Jamie Montgomery
Jamie Montgomery
Co-Founder & Managing Partner at March Capital
Board Member
late stage
10 investments
May 2021
Suman Natarajan
Suman Natarajan
Senior Principal at B Capital, Enterprise Growth Investor
late stage
14 investments
Apr 2021
Jed Leidheiser
Jed Leidheiser
Partner at March Capital
Board / Investor
late stage
5 investments
2021
Andrei Brasoveanu
Andrei Brasoveanu
Partner at Accel
Board Member
late stage
32 investments
Mar 2020
Investor geography2 countries
United Kingdom
11
United States
4
Investor activity2015–2023 · investors recorded per year
20152201612017120185202012021320232
Recent (last 2y)Earlier
Frequently asked questions
Who invested in Tessian?
Tessian has 15 investors on record on gritt.io, including 2 early-stage backers, 7 mid-stage and 6 late-stage investors.
When did Tessian last raise funding?
The most recent investment in Tessian recorded on gritt.io was in June 2023.
When was Tessian founded?
Tessian was founded in 2013.
What industry is Tessian in?
Tessian operates in Computer and Network Security. Find similar Computer and Network Security investors on gritt.io.
Where is Tessian based?
Tessian is headquartered in Boston, United States.