In the world of digital forensics, time is critical, accuracy is everything, and the toll on investigators is all too real. At Semantics 21 (S21), we understand that, because we’ve been working alongside digital forensics professionals for over a decade. Our mission is simple: rescue more victims, accelerate investigations, and protect the mental wellbeing of those who carry out this vital work.

We’re not a faceless software vendor. We’re a specialist team of engineers, former investigators, and AI experts based in the UK with a growing international presence across the USA, Canada, Europe and further afield. Since our founding in 2015, our goal has been to bridge the ‘semantic gap’ – helping AI to think and operate more like investigators do. We’ve quietly developed the most advanced tools in the market, and now, as we expand rapidly, it’s time you discovered why so many professionals call us digital forensics’ best kept secret.

We’re also a multi-award-winning company, proudly recognised with the King’s Award for Enterprise in 2024, the Queen’s Award in 2019, and many others. We’ve built a proven track record of helping law enforcement around the world rescue thousands of children every year through innovative technology and investigator-first design.


To date, our growth has been entirely fuelled by word of mouth – a reflection of the trust and results we deliver. But as we continue to expand globally, we want to get our tools into your hands too – to help you protect the public and save more lives, faster.