Pentesting at the speed of your business

CREST pentesting designed and built from the ground up for fast-moving tech companies.

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Easy numbers

Faster and More Cost-Effective


more cost effective

With our precise hourly billing, and zero reporting charges our clients with multiple pen-test requirements save an average of 38% on their annual pen-testing bill (versus previous provider).



With our online booking, on-demand scheduling and real-time reporting, our average project turnaround time (initial engagement to report completion) is 10 days, versus the industry average of 42 days.



We don’t charge postponement and cancellation fees. We don’t charge for re-testing booked within 7 days of issue identification. These features alone represent an average saving of £1,070 per engagement vs other providers.


Vunerabilities Found


Reports Finished


Satisfied Clients


Types of Testing


Six ways we're making pentesting better for everyone

We’re changing everything. Book online in 60 seconds. Real time issue reporting. Hourly billing. Free re-testing. No cancellation or postponement fees. Full integration with your own tools. All this on top of the high quality, manual pentesting you expect from a CREST-approved pentest vendor.

"Working in a fast paced environment where customers require rapid change and development OnSecurity provide us with a service to support even the tightest timelines. The portal allows us to easily quote, book and review penetration test findings in a simple and user friendly way."

Grant Wylie, Product Manager

The Idol

Innovation at our heart

We're using technology to make pentesting better

From the outset we invested heavily in technology and innovation, to make sure our clients get the best experience possible. From booking a test online, to being able to chat to our testers during the engagement. From real-time reporting to free, one-click re-testing. We are innovators.

"What sets OnSecurity apart is how flexible their platform makes pentesting. They are much less rigid around rescheduling and willing to work in small chunks during the build cycle. This ability to call on them as-and-when made them feel part of the dev team."

Ben Francis, Head of Security & Operations

Giff Gaff

Honesty & Integrity

We Believe In Fair Pricing For Everyone

We don’t believe in charging different rates for different clients. We don’t believe in padding out quotes to the nearest day. Our transparent, hourly billing means everyone pays the same hourly rate, and we quote to the nearest hour, not the nearest day. Plus, with no cancellation or postponement fees, we provide value you can trust.

"Their in depth knowledge and strategic approach to testing was just what we required. They are thorough, very professional and their tools and reports are easy to use. They keep in touch regularly, even in between testing cycles and are always on hand to help and offer advice."

Dave Wilson, IT Director

Hollywood Bowl Group

High quality, CREST-approved pentesting

We're A Pentesting Company Founded By Pentesters

OnSecurity was created by three experienced pentesters. We’re a company that cares deeply about the quality of our testing. OnSecurity is CREST-approved, and all our testers are qualified CREST testers. We believe in manual first testing, and investing in developing talent through a structured and rigorous training programme. That’s how we keep the quality of our tests so high. Don’t believe us? Why not follow along with one of our #hackstreams