Tessian is a cybersecurity company that uses machine learning to automatically prevent human error and data breaches caused by misdirected emails, data exfiltration, and other threats.
- Customers
- 350
Tessian Inc. revenue
Tessian Inc. has not published its revenue. GetLatka estimates it at about $21.4M a year (December 2023).
All 2 revenue readings, with sources
| As of | Revenue | Source |
|---|---|---|
| Sep 2020 | $12M | – |
| Dec 2023 | $21.4MEST | GetLatka estimate |
– source not recorded
Tessian Inc. funding rounds & investors
Tessian Inc. has raised $58.8M across six rounds since 2014. The latest was a $42M funding round in January 2019.
| Date | Round | Raised |
|---|---|---|
| Jan 2019 | Funding round | $42M |
| Jun 2018 | Funding round | $13M |
| Jul 2017 | Funding round | $2.7M |
| Apr 2016 | Funding round | $500K |
| Jun 2015 | Funding round | $400K |
| Jan 2014 | Funding round | $170K |
| Total raised | $58.8M |
Tessian Inc. competitors
Tessian Inc. competes most directly with IronScales.
| Company | Revenue | Funding | Employees | Customers | Founded |
|---|---|---|---|---|---|
| Tessian Inc. | $21.4M | $58.8M | 60 | 350 | 2013 |
 IronScales | $10.9M | $95M | 144 | 5K | 2013 |
Tessian Inc. CEO, founders & employees
Tim Sadler founded Tessian Inc. in 2013 and led it as CEO. Tessian Inc. had 60 employees (October 2024, LinkedIn), down from 228 a year earlier.
- Tim SadlerFounder & CEO
All 13 headcount readings, with sources
| As of | Employees | Source |
|---|---|---|
| Oct 2024 | 60 | |
| Dec 2023 | 228 | |
| Sep 2023 | 219 | – |
| 2023 | 228 | – |
| Dec 2022 | 238 | |
| 2022 | 256 | – |
| Dec 2021 | 262 | |
| Aug 2021 | 217 | – |
| Dec 2020 | 148 | – |
| Sep 2020 | 138 | – |
| Jun 2020 | 166 | – |
| Dec 2019 | 133 | – |
| Dec 2018 | 77 | – |
Tessian Inc. FAQ
Is Tessian Inc. still in business?
No. Tessian Inc. has shut down.
What was Tessian Inc.'s revenue?
GetLatka estimates Tessian Inc.'s revenue at about $21.4M a year (December 2023). The company hasn't published its own figure.
How much funding has Tessian Inc. raised?
Tessian Inc. raised $58.8M across six funding rounds before it shut down. The last was a $42M funding round in January 2019.
How many employees does Tessian Inc. have?
Tessian Inc. had 60 employees in October 2024, according to LinkedIn.
Who founded Tessian Inc.?
Tim Sadler founded Tessian Inc. in 2013.
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How this page is sourced
4 from public sources · 1 estimate. Founder figures link to the second they were said; public figures name their source; estimates are marked EST and say whose they are. Not financial advice.
Updated Oct 30, 2026Data disclaimerReport a correction