Foundry 5 is a fintech software development UK partner that builds under real financial-grade constraints. We reduce your risk and strengthen your team while navigating compliance, security, and the trust your users expect when it is their money.
Whether you are launching from an idea or scaling a live financial product, we bring the experience to de-risk it. We have built and scaled fintech software development UK founders rely on, including the tokenomics platform Open Book, the automated investment platform Gather, and the digital-asset platform Mosaic.
From
6-12 wks
idea to first live release
Always
100%
code ownership. It's yours.
Included
30 days
post-launch support
Shipping screens is the easy part. We do fintech software development UK risk and compliance teams can actually sign off on: by blending deep domain expertise with hands-on delivery, we make sure your systems scale safely, withstand audit scrutiny, and leave your internal team stronger than we found them.
Senior engineers and product leads working directly on your product. No account managers, no middle layer between you and the people moving real money.
Architecture and delivery decisions documented as we build, so the evidence for an FCA review, SOC 2, or PCI audit already exists when you need it.
Real experience with Open Banking, payment rails, ledgers, and the fraud and compliance controls financial products live or die by.
Clear, shared understanding across product, risk, engineering, and compliance, so nothing critical falls between the teams.
Fintech software development UK regulators will accept, where security, fraud, and financial risk are first-class requirements from the first line of code, not a final checklist.
Clean, documented handovers that leave your internal team stronger, with systems they can own, run, and extend.
Crypto investors were tracking token launches, tokenomics, and market maker activity across a pile of disconnected tools, so nobody had a reliable picture. We built Open Book to unify that in one place, on web and mobile, with secure authentication, real-time token data APIs, and a tokenomics analytics engine behind it. Eight weeks from scoping to production release.
Financial teams typically bring in a fintech software development UK partner when the technical decision has to be right the first time, and there is no appetite for finding out later that it was not.
When FCA authorisation, PCI DSS, or an AML/KYC review is bearing down, you need a team that has built to those standards before.
Legacy cores, brittle integrations, and manual reconciliation slowing you down. We modernise without putting live money flows at risk.
When downtime means failed payments and broken trust, you need software engineered for uptime, idempotency, and safe failure.
Scaling transaction volume, entering new markets, or facing investor due diligence demands architecture and controls that hold up.
Founder at Seconddate
Foundry 5 really impressed me with their work on my AI-powered dating app. They nailed the UI/UX, starting with core app screens and then translating that vision to the web. The React site they built is sleek and polished - exactly what I was hoping for. What I appreciated most was their thoughtful approach and how easy they were to work with. They got the job done without needing me to micromanage.
CEO at StreaksAI
Foundry 5 surpassed all expectations in delivering our web development product swiftly and flawlessly. Their speed and eye for detail, especially under tight time constraints, showcase their commitment to excellence.
CEO, Xcelsior Capital
Working with Foundry 5 has been a great experience from start to finish. They seamlessly translated our vision into a website that not only showcases our brand and operations but also enhances our online presence as an investor in natural resources. Nothing was too much for them and they always put the client first.
CEO of Ove
Working with Foundry 5 to create the Ove app has been an absolute pleasure. Their professionalism, work ethic, and willingness to always go the extra mile has really impressed me. I would recommend them to anyone.
Loom Founder
Foundry 5 have gone above and beyond to bring my vision of Loom to life. Not only this, but they continue to be an integral part of our team. They are lovely people to work with, and I recommend them to anyone looking for a software partner. Particularly for non-technical tech founders (like me!) who need to ensure that their business is in safe hands.
Chief Product Officer Gather
The team has been instrumental in driving both the design and development of Gather, pairing a proactive, highly responsive workflow with the technical depth needed to handle our platform's complexity. Their partnership continues to move the product forward in a reliable and impactful way.
Book a 30-minute discovery call. No pitch. We will tell you honestly whether your fintech software development UK project is ready to build, what it would take, and how we would de-risk it, whether you are starting from an idea or scaling a live financial product.