Stack46 is the full-stack software development agency and in-house engineering arm of FourSix46 Global Ltd (UK company no. 16712658, incorporated 11 September 2025), founded by Dinesh Koyyalamudi. We design and build web apps, mobile apps, AI, SaaS and cloud platforms — remote-first, and stack-agnostic by principle: we recommend the right technology for each project rather than forcing one framework on every build.
The same team builds FourSix46's own ventures — Route46, Cinevenn, 46 Dogs and 46DC — and that in-house standard is exactly what we bring to client work worldwide. Every product is engineered on modern, production-grade foundations: Next.js, React, Node.js, Python, FastAPI, and infrastructure across AWS, Google Cloud and Azure — chosen per project, not by habit.
STACK46 is the engineering arm of FourSix46 Global Ltd, a UK holding company building and operating its own digital ventures — then opening that same engineering capability to outside clients. Every process we use with clients was proven on our own products first.
Explore the FourSix46 EcosystemFourSix46's own ventures run on the code we write — so there's no gap between the standard we hold for ourselves and the standard we hold for clients. Same senior engineers, same discipline, same structure-before-scale approach. We stay deliberately small, so the person building your product is the person you actually talk to, and quality never gets diluted through layers of account management.
We recommend the best technology for your product and budget — not the one that's easiest for us to reuse.
Client work is held to the exact standard as FourSix46's own ventures. No shortcuts, no B-team.
Clean architecture and real documentation first, so products stay stable as they grow.
Every product ships performant, accessible, and search-ready — engineered to be found, not just to look good.
The senior engineer writing your code is the person you talk to — no account-manager wall, no telephone game.
We ship, learn from real users, and iterate — without ever cutting corners on code quality.
Founder of FourSix46 Global Ltd and Stack46, its full-stack software agency. Leads product and engineering across the ecosystem — building Route46, Cinevenn, 46 Dogs and 46DC on the same stack and the same standard.
Stack46 operates remote-first from the UK, as part of FourSix46 Global Ltd — registered in England & Wales, with its registered office at 66 Paul Street, London EC2A 4NA. The team works async and distributed, serving clients across the UK, Europe, the US, UAE and India — worldwide.
Registered in England & Wales on 11 September 2025 (company no. 16712658) as the parent brand behind the ecosystem — the foundation Stack46 is built on.
Dinesh Koyyalamudi's personal brand — the origin point behind everything FourSix46 builds.
FourSix46's UK courier and logistics venture — an inherited codebase taken over, enhanced, and re-deployed on Firebase Functions by Stack46.
The ecosystem's largest platform — digital infrastructure for the global film industry, built on FastAPI and MySQL on AWS, launching Phase 1 in India.
A living registry giving every rescued street dog a permanent record — landing page live, full platform in active development.
The in-house engineering arm formalised as a full-stack agency, bringing the ecosystem's standard to clients worldwide.
We're always looking for brilliant engineers and designers. Check out our open roles.