Hack The Box
Hack The Box is a cybersecurity training platform that uses AI and gamified simulations to teach offensive and defensive skills. It serves over 1,500 organizations globally, including Fortune 500 companies and government agencies, and has built a community of 4 million members since its 2017 founding.
About
Hack The Box provides a platform for cybersecurity training through AI-enhanced intelligence, gamified labs, and live-fire simulations. Its tools are designed for organizations to build cyber resilience and develop talent by mastering real-world scenarios. The platform is used by enterprises, government agencies, and managed security service providers.
The company has raised $67 million, including a Series B round in January 2023, backed by investors like The Carlyle Group and Paladin Capital Group. With a self-reported headcount of 201-500 employees, Hack The Box has grown rapidly since its founding, leveraging its global community of 4 million members to scale its impact.
Founders and leadership
Hack The Box's largest function is sales, which accounts for 30% of its workforce. The company operates with a median tenure of 3 years, indicating moderate employee retention. Its leadership team is based in Folkestone, England.
The Hack The Box org chart
Haris Pylarinos (Chief Executive Officer) leads 52 mapped leaders with 20 direct reports. Click +N to expand a team; names link to the person’s public profile.
Talent flow
Hack The Box recruits heavily from cybersecurity training platforms like TryHackMe and Virtually Testing Foundation, as well as consulting firms like Deloitte and EY. Alumni often move to roles at EY, HackerOne, and TryHackMe, reflecting a strong focus on cybersecurity expertise.
Most common previous employers of Hack The Box staff: TryHackMe (28), Virtually Testing Foundation (14), Deloitte (11), HackerOne (10), Cyber Secured India (9), EY (8). Former Hack The Box employees most often moved to EY (8), HackerOne (8), TryHackMe (7), Bugcrowd (5), Deloitte (4), Amazon (3).
Alumni worth knowing
The Hack The Box mafia
Hack The Box alumni have founded 25 companies, including SimuPhish, ThreatScene, and Pwned Labs. These startups focus on cybersecurity and threat simulation, leveraging skills gained from their time at Hack The Box.
25Katerina Tasiopoulou, was Europe & UK Channel and Partner Alliances until 2023Ian Austin, was Head of Innovation until 2022Joas A Santos, was Subject Matter Expert until 2025Marshall Livingston, was Global Director of Solutions until 2024Natan Hailu, was CTF Player - Pro Hacker until 2024
Noah Stanford, was Engineering Consultant until 2022
Kamlesh Gurjar, was CTF Player until 2022
George Salemie, MBA, CISSP, was VP of Sales - Americas until 2022
Jumaa Alhameli, was Pentester until 2023
Jobyer Ahmed, was CTF Player until 2020
Samyak Jain, was CTF Player until 2022
Fabion Kallaku, was Brand Ambassador until 2024
Sidharth Kaushik, was CTF Player until 2022
Saad Ahla, was Red Team Content Developer until 2023
Khalid Maina, was CTF Player(Pro Hacker) until 2023
Barry M., was Innovation Engineer until 2022
Hizan Rahman, was Admin, HTB Yenepoya Mangalore & Bangalore Campus until 2025
Keshav Baliyan, was Content Engineer until 2022
Numon Amirov, was CTF player until 2020
Sankalp Hanwate, was Security Researcher & Red Team Practitioner until 2025
Omar Tamer, was Penetration Testing Trainee until 2026
Vince CORFU, was CTF until 2025
Amit Segev, was CTF's, Academy until 2026
Juan Jiménez Bleye, was Founding Engineer until 2022Web traffic
Traffic mix: 58% direct, 22% search, 10% social, 0% paid.
Where the team actually sits
Hack The Box people are concentrated in Greece (30), India (27), Karnataka, India (24), Tamil Nadu, India (22).
Search footprint
Hack The Box attracts about 33,810 organic search visits a month, traffic worth roughly $245K a month if bought through ads. It gained 4,372 ranking keywords and lost 4,915 in the last period.
Frequently asked
Hack The Box has raised $67M in total, most recently a Series B round in January 2023.
Hack The Box was founded in 2017 by Aris Zikopoulos.
Haris Pylarinos (Chief Executive Officer) sits at the top of Hack The Box's reporting structure, with 20 direct reports.
The most common previous employers of current Hack The Box staff are TryHackMe (28 people), Virtually Testing Foundation (14 people), Deloitte (11 people).
Former Hack The Box employees most often move to EY (8), HackerOne (8), TryHackMe (7).
At least 25 companies have a founder who previously worked at Hack The Box, including SimuPhish, ThreatScene, Pwned Labs.
Hack The Box attracts about 33,810 organic search visits a month, worth roughly $245K a month in equivalent ad spend.
Hack The Box staff are concentrated in Greece (30), India (27), Karnataka, India (24).
Computed from 593 current and 728 former Hack The Box profiles, as of September 2026. Source: Crustdata.
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