11:FS Foundry

Bypass legacy infrastructure and complexity constraints to build digital banking services fit for the future.

In association with

Modular & Robust

Foundry is a modular, ledger-first set of components that lets you build digitally native propositions to scale and at speed. You can stand up a proposition entirely on Foundry or mix and match components to build the perfect product for your customers’ needs, and use the best local third-party suppliers wherever you are in the world.

Fast and Simple

Get up and running in minutes. Focus on honing your product – not getting bogged down in architecture. Deal with the volumes of a tier one bank with the agility of a startup. Get to market faster, with significantly less cost.


Use 11:FS Foundry to power your bank, or accelerate it while running on your own rails. Pick and choose from our suite of customer-focused features to slot in and enhance your current infrastructure.


11:FS Foundry is fully encrypted, and built on a zero-trust security model. And you can rest assured that it's fully GDPR compliant.


Build any kind of banking product or service, from current, savings and loan accounts, to wealth management, with speed and scalability.

Why Foundry?

Today’s banking systems were built in the past and for the past. They worked in their day, but they’re no longer fit for purpose in the digital age. What if you could upgrade your core banking without throwing out your core banking system? With 11:FS Foundry, you can.

It’s time to change

We didn’t choose to build 11:FS Foundry. We had to. Banks are spending billions keeping their legacy architecture on life support rather than truly transforming their services. Why? Because doing so is staggeringly expensive, time-consuming and risky. We built 11:FS Foundry to unleash the potential of an industry crying out for change, without needing to replace everything at once or taking on complex and expensive programmes doomed to fail.

A better way

11:FS Foundry offers cutting-edge and secure APIs for you to plug in the specific features and services you need, using the latest technologies to solve today’s problems while being future-proof for when those problems change tomorrow. Whether 11:FS Foundry replaces, envelops or sits alongside your current systems, it does so quickly and easily.

The Foundry team

Ewan Silver

CTO of 11:FS and 11:FS Foundry
Ewan leads the 11:FS engineering and delivery teams and was responsible for building Mettle, the SME challenger current account we delivered from scratch for RBS. A strong technical leader and executive he has a vast background in digital platforms and technical architecture. He was pivotal in the foundation of both Monzo and Starling and prior to 11:FS was CTO at Nutmeg and Sporting Index, where he helped grow out Betfair.

New report: Banking as a Service

Banking as a Service (BaaS) has disrupted the banking stack. Non-financial brands can now easily offer financial services thanks to a new, modular approach to banking. Our latest report examines the BaaS landscape and what it means for the industry.

Related insights

Change your legacy.

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