Custom-built software for UK car dealerships and retailers.
No rip-and-replace.

We build custom tools on top of your existing DMS, so your team gets the functionality you've been piecing together with spreadsheets and workarounds.

Book a free consultation Call 020 3051 2457

Keep what's working. Fix what isn't.

Rip-and-replace is a terrible idea. Most software vendors know it, even when they're selling it. Your DMS got you here for a reason. Your team knows where everything lives and which workaround gets the job done on a busy Saturday. We leave all of that alone. Then we build new functionality on top, so the bits that slow you down get sorted without anyone having to relearn their job.

What your Dealer Management System could have been doing all along.

How many systems does your team click through to process a deal? Three? Five? More?

Most dealerships run on a patchwork of DMS, finance platforms, stock feeds, CRMs, and third-party tools that were never designed to talk to each other. Our UK-based team at Atreon has built integrations across dozens of them. Your data stops living in silos and starts showing up where your team can act on it. Aged stock alerts before the margin disappears, pricing nudges before everyone overtakes you, and live dashboards your sales managers can trust.

You've been pitched software before.

Big promises, long timelines, quietly abandoned. Staff quickly switch back to spreadsheets, and half the features get switched off. We work in short build cycles. This means something useful goes live in weeks, not quarters. We deliver to the brief, on time, and inside budget, because overruns are the fastest way to lose a client's trust, and we'd rather keep yours. And because we're a British team working British hours, when something needs sorting, you get a person on the phone.

Live inventory, automated pricing, simplified imaging and classifieds syndication that keep aged stock moving before the margin disappears and leads to award winning stock turn.

Live numbers across every site, department, and nominal line, so directors can see the business without waiting on a report.

We connect the systems you already run, so your DMS, finance providers, aftersales tools and CRM talk to each other.

Online bookings, workshop management from single garages to large prep sites that boost throughput, reduce costs, and streamline the process.

Cuts out the repetitive data entry, re-keying, stock loading and report building your team has been doing manually.

Walk-ins, web enquiries, phone calls, and classifieds leads in one place, with follow-ups handled before the lead goes cold.

Most of the dealers we work with end up calling us partners rather than suppliers. Here's some of the reasons they give.

“Working with them has been a genuine pleasure.“
March 2026
“Atreon have been an integral partner of Big Motoring World for many years and working with them has been a genuine pleasure - Their technical knowledge has created numerous integrations, allowing us to connect with many third party companies products seamlessly. They have a genuine passion and understanding of the automotive sector and of understanding the unique requirements of any problem - their sincerity to understand our business operation prior to commencing with a project to ensure solution will meet our expectations was truly welcoming. Ongoing support and product builds are industry leading, with technical support extending outside of the scope of just the product commissioned.“
Bob Ruprah
Bob Ruprah
Operations Director
“We highly recommend their services to anyone looking for top-notch development.“
March 2026
“Working with Atreon has been an outstanding experience from start to finish. They built our entire tech stack exactly to the brief, delivering everything on time and within budget, which was crucial for us. Their technical expertise, combined with a deep understanding of our needs, ensured the development process was smooth and efficient. The final product not only meets but exceeds our expectations in terms of functionality and performance. We couldn't be happier with the results and highly recommend their services to anyone looking for top-notch development.“
James Buxton
James Buxton
Chief Operating Officer
“WITH ATREONS SUPPORT, OUR TURNOVER HAS INCREASED FROM £13.5M TO £28.5M“
November 2025
“We have worked very closely with Atreon for many years and regard them as a key part of our team. Atreon have provided numerous solutions to enable us to view and update data at a company level. They have worked closely with us in regards our price book, production of management accounts and in our credit control. With their support, our turnover has increased from £13.5m to £28.5m, reducing processing time and giving us greater access to key data for decision making enabling our organization to grow without the need for excessive bureaucracy.“
Kevin Hancock
Kevin Hancock
Managing Director
““No” does not seem to be an answer for them, and that mindset goes a long way.“
February 2026
“We have been genuinely impressed with the service we have received to date. Adam and Josh have both been excellent throughout and have really stood out in the way they have supported us. Their communication, attention to detail and overall care in getting things right has been clear from the outset. What has made the difference for us is that nothing ever feels too much trouble. They approach everything with the right attitude, stay on top of the detail and are clearly focused on finding a solution rather than creating a barrier. “No” does not seem to be an answer for them, and that mindset goes a long way. It is refreshing to work with people who clearly care about the service they provide and who back that up with action. We have really valued their support and look forward to continuing to work together.“
Dan Overbury
Dan Overbury
CEO

Frequently Asked Questions

Most of our clients see working functionality within a few weeks of starting. We work in short build cycles so you're not waiting months before seeing results.

We present options with timeframes and costs before you commit to anything. We work to a fixed budget - no surprise overruns, no scope creep without agreement.

No. We build around what you already have. Your DMS stays in place, we just extend it with new functionality and integrations so your team doesn't have to relearn anything.

Yes. We're a British team working British hours. No part of our team is outsourced so when something needs sorting you get a person on the phone, not a support ticket and a 48 hour wait.

We've worked with all the major DMS platforms, all the major classifieds, a wide range of finance providers, and numerous CRMs and marketing tools. If you're running it, chances are we've connected to it before.

Completely fine. Most dealerships start with a problem they need to solve and that's it. Tell us what's slowing you down and we can suggest what to build from there.

Write a line or two about what's been bothering you. We'll come back with some thoughts, and if it feels worth a proper conversation, we'll book one in.

Custom-built software for UK car dealerships and retailers.No rip-and-replace.