United States · Venture startup

Who invested in DefensX

2 rounds we have observed, with the 2 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

Cybersecurity

Raised 4 months ago

Funding summaryUpdated 26 Oct 2026

$15Mraised across 2 rounds since 2025, from 2 sources

$2.3MSeed$13MVenture
Latest round
Venture, $13MJul 2026
Step-upi
5.5×
Investors
2
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

2026
$2.3MSeed$13MVenture
First round
Seed, $2.3M
May 2025
Biggest round
$13M
Venture · Jul 2026
Between rounds
14 months
from the last two

The rounds

  1. Jul 2026
    Venture$13M2 returning

    Source recorded

  2. May 2025
    Seed$2.3M2 new

    Source recorded

Founders and team

From DefensX's own website: 2 founders, 6 on the team.

Halis Osman ErkanFounder & CEO
Murat DemirtenFounder & CTO
  • Andrew MortonVice President - Sales
  • Alex RussoBoard Member
  • Alper AkçanBoard Member
  • Cenk BayrakdarBoard Member
  • Dave MaikChannel Director
  • Nick StoffregenBoard Member

AdvisersDavid A. WalshMartina Aufiero

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

Revo CapitalVC firm2rounds

Missing a round, or an investor who was in one? Tell us.

Quick answers about DefensX

Who invested in DefensX?

DefensX's investors include Revo Capital and Türkiye Development Fund.

How much has DefensX raised?

DefensX has raised $15M across 2 rounds since 2025.

When did DefensX last raise?

DefensX's most recent round was a Venture of $13M in Jul 2026.

What was DefensX's biggest round?

Its most recent round, $13M in Jul 2026, is also its largest on record.

Who backed DefensX first?

DefensX's first round on record, in May 2025, was backed by Revo Capital and Türkiye Development Fund.

What stage is DefensX at?

DefensX's latest named round is a Venture, in Jul 2026.

Where is DefensX based?

DefensX is based in the United States.

Companies like DefensX

In the same sector, and raised in the last eighteen months.

Find investors like these

Search every investor by what they have actually funded, then narrow to your stage and market. Free.