Built to work.
Designed to be remembered.

“Working with Code23 to build Sponsorfy has been, without exaggeration, the single most important partnership I've made. What we're building isn't a website with a plugin bolted on - it's a genuinely complex, AI-native marketplace for football club sponsorship, and the layer of agentic experience we're weaving into the UX is the kind of thing most dev teams would flinch at. Code23 didn't flinch. They leaned in.

From the very first sprint, it was clear these people get it. Not just the code, but the architecture of a marketplace where buyers, clubs, and AI agents all need to navigate a fluid, dynamic experience. They challenged our assumptions, pushed back on flows that looked clean on paper but wouldn't hold up in the wild, and brought a depth of UX and AI thinking that felt like we'd hired a senior product team alongside the engineers. That's rare. That's not what you get when you brief a “development partner.” You get a thinking partner.

The work ethic, though - I'll say it plainly - is almost unreasonable in the best way. Responsive at odd hours, proactive with solutions before we'd even articulated the problem, and a genuine, almost stubborn commitment to seeing the thing through properly. They treated Sponsorfy like it was their own product, and you can feel that in the craft of what they've delivered.

I wouldn't hesitate to put Code23 in front of any founder or team building something ambitious in the AI or marketplace space. They're the ones you call when the scope is scary and the stakes are real.”

“We're a property maintenance business, not a tech company. We came to Code23 with 30 years of industry knowledge, a head full of ideas and a spreadsheet-and-whiteboard operation, and asked them to turn it into a proper platform. A year on, our office runs on it daily: clients, contracts, jobs, quoting against schedule of rates, planning, and a full audit trail on every job from first survey through to invoice.

What sets James and the team apart is how they work with you. Every founder call gets turned into something concrete within days - we'd describe how a job actually runs on site, and the next review we'd be clicking through a prototype of exactly that. They don't just take instructions either. When we asked for something that would have caused problems down the line, they said so and explained why, and they were usually right. You're getting a thinking partner, not an order-taker.

The bit that's impressed us most is the field app. They sat with us, pulled apart how our operatives really work - van checks, materials, RAMS, evidence photos, resident sign-off - and designed an app around the reality of the job, not a generic form-filler. Our engineers are not app people, and it's built so they don't need to be.

Responsive, straight-talking, and they genuinely understand how a trades business operates, which is rare in software people. We're now taking the platform to market as a product in its own right, which tells you what we think of the build quality. Couldn't recommend them more highly.”

“We’ve been working with James and the team at Code23 on the development of RevXtra and the experience so far has been excellent.

From the outset, they’ve taken the time to really understand what we’re trying to build rather than simply doing what we ask. They’ve challenged ideas when needed, offered solutions and helped turn what started as a concept into a genuine product.

Communication has been great throughout and it genuinely feels like they’re invested in making RevXtra a success, rather than us just being another client.

I’d have no hesitation recommending James and the Code23 team.”

“Code23 delivered a great website for us, on budget and on time. They are a great team to work with and are highly professional. They simply get the job done!

“Code23 have been more helpful, more knowledgeable and more willing to go the extra mile than any other web developers that I've worked with in the past.

“Pleasure to work with and very happy about the design element, general service and performance of Code23.

“The entire team at Code23 have been fantastic. Their approach to understanding our business, brand and audience has been both professional and exhaustive… their work has given us a real edge over our competitors, and I'm proud to call them our Digital Partners.

“The platform UI they delivered is completely transformed. The UX is intuitive, the dashboard now showcases the operational metrics that matter, and the modern UI gives our platform the enterprise feel our clients wanted.

“They didn't just deliver screens to a spec. They pushed back on flows we'd normalised, refined the UX in ways we hadn't considered, and brought a level of UI craft that lifted the entire product above what we'd scoped.

“Working with Code23 to build Costhetix has genuinely been one of the best decisions I've made as a founder… They're knowledgeable, approachable, responsive and exceptionally good at what they do. I wouldn't hesitate to recommend them to any founder or business looking for a development partner they can genuinely trust.

“They met our brief perfectly, delivering a website that not only looks great but performs exactly as we envisioned, all at excellent value for money.

“I was looking for a high level flexible software solution for our marketplace, but also a team to support us on this journey as we scale.

“We've worked with Code23 for many years now for our website. Very happy with the level of service and responsiveness, would highly recommend their services.

“Every part of the process from the scoping and onboarding down to the design and implementation of our website was handled excellently.

“A real pleasure working with Code23 who, from the beginning listened to our needs, were able to navigate the challenges that arose, and had the expertise to deliver a secure and future-proof site.

“Excellent customer service and quality throughout and the build they have now completed is fantastic. It exceeded all expectations across the board.

“Code23 have done a fantastic job helping us design and build our new website. I feel they really captured the quality of the Draks brand.

“They have been more helpful, more knowledgeable and more willing to go the extra mile than any other web developers that I've worked with in the past.

“We chose Code23 to build our new website and we were not disappointed. A great service from start to finish, creative, professional and friendly.

“It has been a pleasure working with you… we are really pleased with the site and how it has positively impacted our leads and customer support funnels.