The leading Ruby on Rails development and design agency in London

thoughtbot delivers expert design and development consulting for businesses across the UK. Whether you’re a growing company or an established organization with legacy software, our team can help make your web or mobile project a success.

Let's Talk

Over 1,000 clients

thoughtbot is a trusted development and design partner for companies across finance, healthcare, government, and more.

The caliber of talent that thoughtbot brought to bear in our initial engagements demonstrated their value very quickly and was really fantastic. It represented the capabilities they had as a long term partner.

A headshot of Craig Gravina

Craig Gravina
CTO, IESO Digital Health

React Native, iOS, Android development

A mobile app development company that delivers results, fast

Our team specialises in making your mobile app idea a reality - for new concepts as well as mobile experience based on existing web apps. We’ll help you scope the right set of features based on quick user research and testing, and then we’ll get to building the right thing. Our integrated product teams deliver mobile app services designed so you provide a superior user experience.

reduce risk

Work with some of the best web app developers in the UK

We specialise in building robust applications using Ruby on Rails and Hotwire for dynamic experiences. Many clients are also working with us to build AI integrations to deliver intelligent, scalable solutions. Our expertise extends to cloud infrastructure with AWS and Google Cloud ensuring your product is built on a secure and scalable foundation, so we are G-cloud certified in the UK.

research, web design, UX,

A design agency that puts your customers at the center of product design

thoughtbot designers are researchers, art directors, user experience architects, and programmers. From strategy to implementation, we collaborate with you to design experiences that build successful products and businesses.

We work iteratively alongside your team to create compelling experiences, drive user acquisition, engage with customers in new ways, and illuminate your brand.

A collage of photos with hand-drawn elements; from top left, post-its gathered together on a wall, a product owner holding up their storyboard sketch and talking through it, a client sigging in a confence room laughing

The biggest outcome for me personally was being up-skilled as a Project Manager and leaving the thoughtbot engagement with not only a powerful new platform, but also the skills to use while working with our own developers later - a long lasting solution.

A headshot of Dominic Jackman

Dominic Jackman
CEO and Founder, Escape the City

Our work

Learn about some of our client successes in London

BeeOdiversity — thoughtbot worked with greentech startup BeeOdiversity to uncover UX opportunities and improve conversion rates

Read the case study

Ieso Digital Health — Ieso and thoughtbot developed a mental health app to capture and serve a new market.

Read the case study

resources

Resources from our local product experts

Navigating the European Accessibility Act

A guide to understand the European Accessibility Act and comply.

Read more

Giant Robots Smashing into other Giant Robots

Welcoming thoughtbot Senior Developer, Sami Birnbaum out of London, as our new podcast co-host.

Read more

Brighton Ruby Recap

Our highlights from participating in one of the UK's thriving Ruby communities - Brighton.

Read more

thoughtbot Open Summit

Our team across Europe, West Asia, and Africa give development talks and live code on open source.

Watch the videos

Let's Talk

What does success look like for your project?

A photo collage depicting people at work consisting of four photos and three hand-drawn elements, from top to bottom; two people pinning up storyboard sketches during a design sprint, two developers working side by side at their desks in a well lit office, two people at a conference table smiling with post-its on the wall behind them, the backs of a designer and developer working together on code at the same desk