About Us

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 customers love OnSecurity


OnSecurity platform launched


Vulnerabilities found to date


Happy, secure customers


Pentests completed

OnSecurity Milestones

  • February 2018 - OnSecurity is born
    OnSecurity is born after the founders meet on a large-scale pentesting project in the Middle East.
  • December 2021 - Scan launched
    Our first non-pentest offering, Scan brings vulnerability scanning to all our customers.
  • June 2022 - Radar launched
    Our threat intelligence tool, Radar, is released to show businesses what they look like through the eyes of a hacker.
  • September 2022 - PtaaS launched
    OnSecurity are uniquely positioned to launch Pentest-as-a-Service, ushering in a new era of flexible, agile testing.
  • June 2024 - 5.5 million series A funding secured
    OnSecurity receives strategic growth investment of £5.5M from Gresham House Ventures.

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.


We behave with honesty and integrity with all our customers. Our pentest pricing is transparent, and we bill by the hour, not the day.


Never stand still. From the world’s first online pentesting quote and book, to our cutting-edge Scan and Radar tools, we innovate in all we do.


We love what we do, and everyone who works at OnSecurity cares deeply about making the world more secure for our customers.

Meet the Founders

Conor O'Neill: Co-Founder & CEO

Conor O'Neill

Co-Founder & CEO

Dave Hewson: Co-Founder & CRO

Dave Hewson

Co-Founder & CRO

Adam Luxford: Co-Founder & COO

Adam Luxford

Co-Founder & COO

Tom Lindley: Co-Founder & CTO

Tom Lindley

Co-Founder & CTO

© 2024 ONSECURITY TECHNOLOGY LIMITED (company registered in England and Wales. Registered number: 14184026 Registered office: Runway East, 101 Victoria Street, Bristol, England, BS1 6PU). All rights reserved.