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About AUDITSU

AUDITSU is compliance tooling, built in Leeds by Jason Crispin and Simon Milner. We help teams prove their work meets the standard, and keep that proof up to date. The standards on it today are accessibility.

How it started

Born from frustration.

  1. 2023

    The frustration

    Jason built a mobile app that used AI to write and illustrate children's stories. Getting its accessibility right was the frustrating part.

  2. 2024

    The pivot

    He turned to that problem: helping teams meet accessibility standards, and show that they have.

  3. Today

    Live

    AUDITSU launched in April 2026. Accessibility is on general sale, and document sign-off is in early use.

How we work

Software helps. A person decides.

A named person signs it off

Your team, your software or an AI can do the work. Whether it meets the standard is a judgement a named person makes, and AUDITSU records who made it and when. Our software does not make that call for you.

Proof should stay current

A report describes the day it was written. We build records that update as the work changes, so what you show someone is still true.

We say what is live, and what is not

We tell you plainly what the product does today, what is in early use, and what is still a conversation. If the honest answer is that we are not the right fit, we say so.

Built for people

The A in our logo carries (ren), the character for “person”. Compliance is about people: the ones who use what you build, and the ones who sign it off.

The people

Simon and Jason

AUDITSU is two people. You deal with both of them, from the first call.

Jason Crispin

Founder and CEO

Jason had two startup exits before he was 24. He has spent more than twenty years in sales, ten of them scaling commercial teams in recruitment, where he personally won contracts worth £12.3 million a year inside a billion-dollar recruitment company.

AUDITSU was born from his own frustration. Building a mobile app in 2023, he found accessibility the hardest part to get right, and in 2024 he pivoted to solving it.

In February 2026 he published a paper on how AI search tools find information in large document collections.

In 2025 the Royal Academy of Engineering backed his work on AUDITSU, and in 2024 Insider Media named him in its 42 Under 42. He organises Leeds Angels, an angel group that connects founders with investors, and in April 2026 he presented at Parliament alongside the ACT App Association.

Simon Milner

Founding Architect

Simon has spent more than thirty years turning new technology into products. At AUDITSU he leads the architecture of the platform.

He was employee number 30 at MMC Networks, which created the network processor category, listed on Nasdaq and was acquired by Applied Micro Circuits for $4.5 billion. He then co-founded Candlestick Networks, sold to Nortel.

He spent nine years as Vice President and General Manager at Marvell Semiconductor, where he led SheevaPlug, a Popular Science “Best of What's New” winner in 2009, and worked with One Laptop per Child on its XO tablet. He went on to found Petzila, whose connected pet camera sold through Best Buy, Petco, Walmart and Amazon, and which was acquired by Wagz.

He holds a PhD in digital signal processing from Manchester Metropolitan University and a first-class engineering degree from the University of Huddersfield, and has published 18 academic papers. He started out as an air radar technician in the Royal Air Force.

Backing and recognition

Who backs us

Royal Academy of Engineering
Funded by UK Government
PXN Ventures

Funding

  • Investment from PXN Ventures, in 2025.
  • Grants from West Yorkshire Combined Authority, through the University of Huddersfield and the University of Leeds, in 2024 and 2025. Part came from the UK Shared Prosperity Fund.
  • Backing from the Royal Academy of Engineering, through a Regional Talent Engines award to Jason to move AUDITSU forward, in 2025.

Recognition

  • Winner, Start-Up category, TheBusinessDesk.com Yorkshire Business of the Year 2026.
  • Winner, Startup of the Year, UK Startup Awards 2024.
  • Shortlisted in three categories, Leeds Digital Festival Awards 2026.
  • Jason named in Insider Media's 42 Under 42, 2024.

Working with universities

  • University of Leeds. Students have written research pieces on AUDITSU.
  • Leeds Beckett University. Students worked on a go-to-market strategy for AUDITSU.
  • University of Huddersfield. A grant funded a student to work with us.
  • University of Manchester. For two years running, students have researched the business and told us the risks and opportunities we might be missing.

Talk to Simon and Jason

Been asked to prove something, or weighing up a job for AI? Bring it to a free 30-minute call. No pitch.