# Hack The Box funding: rounds and investors

> Hack The Box has raised $56M across 2 rounds since 2019. Investors include Endeavor Catalyst, Paladin Capital Group and Marathon Venture Capital.

Source: https://millionrounds.com/company/hack-the-box (Millionrounds; every figure on the page links to its filing or article)

United Kingdom · [Series B startup](https://millionrounds.com/companies)

# Who invested in *Hack The Box*

2 rounds we have observed, with the 3 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.

AI Cybersecurity

Funding summary Updated 26 Oct 2026

**$56M** raised across 2 rounds since 2019, from 2 sources

**$1.3M** Round **$55M** Series B

- **Latest round:** Series B, $55M Jan 2023
- **Step-up i:** 42.3×
- **Investors:** 3

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.

2019 2020 2021 2022 2023

**$1.3M** Round

**$55M** Series B

- **First round:** Round, $1.3M
- **Biggest round:** $55M
- **Between rounds:** 3.8 years

## The rounds

- **Jan 2023** Series B **$55M** *2 new* [Endeavor Catalyst](https://millionrounds.com/fund/endeavor-catalyst) [Paladin Capital Group](https://millionrounds.com/fund/paladin-capital-group) Source recorded
- **Apr 2019** Round **$1.3M** *1 new* [Marathon Venture Capital](https://millionrounds.com/fund/marathon-venture-capital) Reported by Tech.eu

## Founders and team

From Hack The Box's own website: 1 founder, 7 on the team.

**Haris Pylarinos** Founder & CEO

- **Gibb Witham** President
- **Christine Bartlett** Chief Marketing Officer
- **Gerasimos Marketos** Chief Product Officer
- **Konstantinos Dolkas** Chief Technology Officer
- **Konstantinos Dollkas** CTO
- **Nikos Fountas** Chief Operations Officer
- **Tom Fernandez** Chief Revenue Officer

## 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.

**Round** 2019 **Series B** 2023 [Endeavor Catalyst](https://millionrounds.com/fund/endeavor-catalyst) [Paladin Capital Group](https://millionrounds.com/fund/paladin-capital-group) [Marathon Venture Capital](https://millionrounds.com/fund/marathon-venture-capital)

## Everyone who backed them

[Endeavor Catalyst](https://millionrounds.com/fund/endeavor-catalyst) Corporate VC **1** round

[Paladin Capital Group](https://millionrounds.com/fund/paladin-capital-group) VC firm **1** round

[Marathon Venture Capital](https://millionrounds.com/fund/marathon-venture-capital) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=hack-the-box).

## Quick answers about Hack The Box

### Who invested in Hack The Box?

Hack The Box's investors include Endeavor Catalyst, Paladin Capital Group and Marathon Venture Capital.

### How much has Hack The Box raised?

Hack The Box has raised $56M across 2 rounds since 2019.

### When did Hack The Box last raise?

Hack The Box's most recent round was a Series B of $55M in Jan 2023.

### What was Hack The Box's biggest round?

Its most recent round, $55M in Jan 2023, is also its largest on record.

### Who backed Hack The Box first?

Hack The Box's first round on record, in Apr 2019, was backed by Marathon Venture Capital.

### What stage is Hack The Box at?

Hack The Box's latest named round is a Series B, in Jan 2023.

### Where is Hack The Box based?

Hack The Box is based in the United Kingdom.

## Companies like Hack The Box

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

[**Cognitive Credit** $64M · Oct 2026](https://millionrounds.com/company/cognitive-credit)[**Marrow** $2.0M · Oct 2026](https://millionrounds.com/company/marrow)[**Opply** $23M · Oct 2026](https://millionrounds.com/company/opply)[**Blackwall** $162M · Oct 2026](https://millionrounds.com/company/blackwall)[**XRlabs** $8.4M · Oct 2026](https://millionrounds.com/company/xrlabs)[**Salience Labs** $169M · Oct 2026](https://millionrounds.com/company/salience-labs)

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