Preux
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Preux

A London software firm of senior builders. Custom software for real operations, taken to production.

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hello [at] preux.co.ukLondonWorking across the UK, US & Europe
Preux

© 2026 Preux. All rights reserved.

Designed & built in London.

Software · Strategy · AI — London

Custom softwarefor real operations.

A London software firm of senior builders, working globally. We partner with you to shape the problem, then build the custom software that runs your business. Our job is to get the decisions that matter right, and keep them right in production.

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Selected clients across healthtech, fintech & luxury

CryoFutureIBMRolls-Royce Motor CarstZERODetaso

Selected work

Systems trusted to run real operations.

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Healthtech · Custom platform · React + .NET

Tracking irreplaceable specimens across seven US facilities, on one system of record

+20% monthly · Collections

Public sector · Platform · compliance

A document platform at national scale — 1.3 billion records

1.3 billion documents · Scale

Luxury · Brand · UX/UI · Interactive

From email orders to a global digital boutique

£100–£375 a tin · Price point

Healthtech · Workforce marketplace · Product

Staffing infrastructure that held at pandemic scale

~$1.5B (2021) · Revenue run-rate

Capabilities

One team, from strategy to production.

We bring hands-on experience across software, product and AI, with senior people leading the work from the first conversation. Most of a project’s value lies in the judgment around the code: the architecture, the customer experience, the edge cases and risks that decide whether a system holds for years. And where a build calls for deep specialism, a strong network lets us bring the right partners in alongside us, so the work always has the exact expertise it demands.

01Software engineeringEnterprise-grade systems, built to outlive us.→
02Product & strategyDiscovery and design that find the right thing to build.→
03AI to productionAI taken to production, with people in control where it counts.→
04Delivery platformA proven, compliance-ready foundation for regulated platforms at scale.→

How we work

AI has made software easy to start and harder to get right. The advantage now is judgment: what to build, what to automate, and what to leave to people.

01

Senior judgment

The decisions that shape a system are made early. We put experienced people on those calls from the first conversation: the architecture, the risks, and the opportunities others miss.

02

Shaped with you

We come in to shape the problem alongside you, not to wait for a finished brief. Often the most valuable work is deciding what is genuinely worth building.

03

Built to outlive us

We engineer for the second year, not the demo. Systems that hold under real load, and that your team can own and extend long after we hand over.

04

The right capability

A senior core, extended through a trusted network when a build needs deep specialism. We take AI to production and keep people in control of the decisions that matter.

A note from our founder

Why we built Preux the way we did.

A short film on the senior-only model, the work we take on, and the standard we hold — in our founder's own words.

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Founder film — coming soon

Insights

Practical writing on applied AI and delivery.

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Applied AI9 min read

Building an AI brain of your own

A model with no memory is a brilliant colleague with amnesia. The fix is not a bigger model. It is a small, disciplined system aro…

MRMatthew RogersFounder & CEO, Preux9 June 2026
Applied AI11 min read

Building an AI brain for a team of engineers, not just for yourself

A personal AI brain and a team AI brain look like the same project. They are not. One optimises recall for a single mind; the othe…

MRMatthew RogersFounder & CEO, Preux5 June 2026
Applied AI8 min read

The AI wiki: stop re-reading, start compounding

Most teams make their AI re-read the same documents on every question and throw the synthesis away with the context window. A wiki…

MRMatthew RogersFounder & CEO, Preux10 June 2026