About OnSecurity
The OnSecurity founders spent a collective 40 years as professional ethical hackers. This experience has given us a unique insight into the hacker mindset, and how the modern cyber-crime industry works. We use this experience to protect our customers from modern hackers.
Why Clients Love OnSecurity
400 +
Happy, secure customers
200k +
Vulnerabilities identified
20 %
Of profit reinvested into R&D, improving the platform
80 %
Client retention rate
Milestones
Feb, 2018
OnSecurity is born
OnSecurity is born after the founders meet on a large-scale pentesting project in the Middle East.
Dec, 2021
Scan is launched
Our first non-pentest offering, Scan brings vulnerability scanning to all our customers.
Jun, 2022
Radar is launched
Our threat intelligence tool, Radar, is released to show businesses what they look like through the eyes of a hacker.
Sept, 2022
PTaaS is launched
OnSecurity are uniquely positioned to launch Pentest-as-a-Service, ushering in a new era of flexible, agile testing.
Jun, 2024
£5.5 million series A funding secured
OnSecurity receives strategic growth investment of £5.5M from Gresham House Ventures.
May, 2025
AI-Augmented Pentesting Launches
OnSecurity combines human expertise with automation to maximise testing outcomes without compromising on quality
Our Leadership Team
Our Values
We believe in what we say. We pride our business on our values, and we feel they stand by the decisions we make in our mission.
Execution
We ensure that we deliver with efficiency, ownership and excellence. We follow through, deliver results and continuously improve.
Join our team
Joining OnSecurity means stepping into a role where your work matters. You’ll be part of a team that values your contributions, fosters your growth, and celebrates your successes. Together, we’re making a difference—for our customers, for cybersecurity, and for each other.
