Quantum Craft is a small London studio with two decades and a few exits behind it. We take funded startups from a rough idea to production software, the kind your next investor actually wants to see under the hood.
Shipping production code, not prototypes
Platforms shipped from first line to launch
From discovery to launch, no surprises
Where we take teams, seed to Series A
Real platforms in production, doing the unglamorous work well: compliance, scheduling, payments, records. Not demos.
One platform for UK water-hygiene contractors: drag-and-drop scheduling, an offline app that captures forms, photos and samples on site, five-year compliance records, and invoices that write themselves as jobs close. LCA audit-ready in seconds.
Clients, classes and payments for trainers and studios. Live video sessions, a booking calendar, and billing that stops coaches chasing money. The admin that eats your evening, handled in one place.
A practice-management platform for therapists. Session scheduling, client records and a notification engine, privacy-first from the schema up. Built on .NET 8 and Next.js 16, still in build.
Eight things we’re genuinely good at, and would put our own name on. Not a menu of everything.
No black box. Every phase has a fixed shape, a rough duration, and things you can hold in your hand at the end of it.
We turn the idea in your head into something we can quote. Wireframes, a technical spec, an architecture, real estimates, and the risks nobody wants to name up front.
The work gets broken into sprints with milestones you can hold us to. Environments, CI/CD, onboarding and the metrics we'll judge success by are all in place before we write feature code.
Two-week iterations, a working demo at the end of each one. You see progress you can click, not a status you have to trust. Tests and reviews run the whole way through.
Into production, tuned and audited. Then a proper handover. Your team gets the documentation, monitoring and knowledge transfer to own it rather than lean on us.
The studioThree things we don't compromise on. They're the reason clients keep our number.
We've built, scaled and sold software companies. We know what a cap table is, what burn does to a roadmap, and what an investor opens first in your repo.
Because eventually someone is. Scalable architecture, real tests, and documentation the next CTO won't curse us for. No prototypes dressed up as products.
Scope is agreed up front, in writing, with milestones. You won't get mystery invoices or quiet scope creep, and if something's slipping, you hear it from us first.
Enterprise-grade, boring where it should be boring. We pick tools that are still a good idea three years after launch.
Weeks, not months. Most first versions ship in 6 to 12 weeks, depending on scope. We move quickly by reusing patterns and tooling we've shipped before, without cutting corners. After a short scoping call you get a real timeline instead of a guess.
Book a free 30-minute call. We'll dig into your idea, your stack and your timeline, and give you an honest read on what it will take to build and launch. You'll leave with a clearer plan whether or not you hire us.