Top 13 Ruby on Rails Development Companies In The UK (2025)

Has your business been promised a high-quality Ruby on Rails solution, only to be left with delays, bugs, or poor performance? Too often, development agencies promise clean, scalable Rails applications — but fail to deliver.

Finding a Ruby on Rails team that truly understands your business needs and has a proven track record of successful projects can feel overwhelming. Searching online for the right partner takes time, so today, we’re highlighting the top UK Ruby on Rails development agencies to help you find the perfect fit for your project.

Sound good?

What makes a top Ruby on Rails Development Company?

As you might have guessed, not all Ruby on Rails development agencies are the same. To save you time, we’ve curated a list of the 13 best UK Ruby on Rails agencies. This list isn’t based on our opinion alone — it’s built around the key factors that define a truly exceptional Rails development partner.

• Proven Track Record: In development, performance is everything. A reliable agency will have a portfolio of successful Ruby on Rails projects that demonstrate scalability, clean code, and tangible business results. If they can show what they’ve built for others, they can prove they can do it for you too.
• Specialist Developers: Team size matters, but expertise matters more. Rails specialists understand how to optimise applications, implement best practices, and ensure long-term maintainability — which is essential for sustainable growth.
• Full-Stack & Integration Expertise: The best agencies don’t just code; they integrate. Look for teams skilled in front-end, back-end, and API integrations to ensure your application runs smoothly across all platforms and devices.
• Industry Experience: Who have they worked with before? An agency that understands your industry will anticipate challenges, recommend the right solutions, and deliver a Rails app tailored to your specific business goals.

Now that you know what to look for, let’s dive into the top Ruby on Rails development agencies in the UK!

Top Ruby on Rails Development Companies

1. Railsware

Railsware is a Ruby on Rails development company with nearly two decades of experience, known for turning ideas into scalable products quickly and efficiently. Leveraging RoR’s strengths like rapid prototyping, built‑in testing, and a rich ecosystem, they’ve delivered impactful solutions, including helping Calendly grow from an MVP to a platform handling millions of users.

Their Rails teams are composed of senior engineers who focus on clean architecture, automated testing, and long‑term sustainability. Railsware has built custom RoR applications for industries ranging from startups to fintech and e‑commerce, earning a strong reputation for technical expertise and reliable execution.

2. Rubyroid Labs

Rubyroid Labs, founded in 2013, is a dedicated Ruby on Rails development agency delivering full‑cycle services such as MVP creation, vendor transition, consulting, refactoring, and ongoing team support. With a team of over 60 experienced developers, they have built hundreds of Rails applications across industries like fintech, e‑commerce, travel, and automotive.

Specialising in Ruby on Rails allows them to provide scalable, maintainable solutions with strong attention to code quality and sustainable architecture. They are also skilled in advanced integrations, including AI and CRM systems, earning a reputation for technical depth, clear communication, and reliable delivery.

3. Storm

Storm – based in Bath, UK – is a boutique, Certified B Corp digital agency with over 15 years of experience building scalable, secure, user-friendly Rails applications. Their team delivers across the full spectrum of Rails work: from MVPs and greenfield products to ongoing upgrades, performance tuning, and security health checks. They’re particularly known for rapid-launch capabilities using Rails’ conventions and tooling to enable fast, cost-effective delivery.

They also offer highly flexible support: fractional CTOs, surge Ruby developers for short-notice tasks, and team augmentation to handle technical debt or feature bursts. Their specialist services include code health audits, performance optimisation (e.g. caching, memory tuning, database query improvements), and structured Rails upgrades. With deep Rails fluency, Storm supports startups, scale‑ups, universities, government and corporate clients to deliver resilient, maintainable web applications.

4. 6B

At 6B we specialise in Ruby on Rails among other supported technology frameworks. While Rails is not our sole focus, our software delivery team is skilled at building custom applications with Rails, particularly when integrated into complex systems in regulated or public sector environments. We emphasise agile, full-lifecycle development—from UX and design to backend build and long-term support—with an emphasis on tailor-made solutions aligned with strategic, operational, and compliance needs. Our work often serves enterprise-scale projects where Rails is used alongside other technologies in multi-stack environments.

If you’re looking for a Ruby on Rails development company that delivers results—at scale and with technical excellence – click the button below to get in touch. Or, if you’d like to learn more about our Ruby on Rails development services, then check out our service page here.

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5. Foxsoft

Foxsoft, based in Tamworth, Staffordshire, specialises in Ruby on Rails development, support, and rescue work for small to mid‑sized businesses—especially those without in-house technical teams. Since 2006, they’ve focused on taking over Rails applications abandoned or poorly maintained by previous developers, quickly restoring control, reliability, and maintainability. Their core “Rails Refresh” process includes code audits, upgrades to current Rails versions, bug fixes, documentation, and ongoing support to ensure long-term software health.

Their approach, known internally as “The Foxsoft Way,” emphasises predictable pricing, transparent communication, and long-term partnerships—many clients stay with them for eight years or more. They offer both feature development and continuous maintenance, proactively improving performance, security, and resilience. Foxsoft combines deep Rails fluency with a supportive, trustworthy service model to transform legacy or neglected Rails apps into dependable business assets.

6. Kyan

Kyan, based in Guildford, UK, has been working with Ruby on Rails since 2006 and treats it as a core competency within their development practice. They leverage Rails’ speed and structured conventions to rapidly deliver MVPs, scalable platforms, and custom web applications. Their services span the full Rails lifecycle, including code audits, API development, performance optimization, and ongoing maintenance.

Their experienced team combines Rails expertise with UX design and agile methodologies to create maintainable, high-quality products. With a strong emphasis on collaboration and long-term client partnerships, Kyan has built a reputation as a trusted Rails-focused digital product studio in the UK.

7. Syndicode

Syndicode, founded in 2014, is a globally distributed software development and consulting partner with a strong focus on Ruby on Rails. With 70+ engineers, they deliver tailored RoR solutions—including custom web apps, MVPs, SaaS platforms, and enterprise systems. Their full lifecycle offerings span architecture planning, code audits, refactoring, API integration, migration to Rails, performance optimisation, and long-term maintenance.

Their emphasis on Rails stems from deep hands‑on experience in building scalable, secure, high-performance apps across industries like fintech, logistics, retail, education, and healthcare. Syndicode supports flexible delivery models—consulting, dedicated teams, and staff augmentation—prioritising clear communication, rapid onboarding, transparent pricing, and value‑driven partnerships. Their clients benefit from objective insights, robust architecture choices, and continuous post-launch support.

8. Zaibatsu Technology

Zaibatsu Technology is a London-based digital agency founded in 2018 that specializes in Ruby on Rails development as part of its broader custom software and AI-driven service offerings (some sources report RoR makes up around 15 % of their work). Their RoR team builds everything from MVPs to enterprise web applications, prioritizing fast, scalable, and secure delivery tailored to client needs.

While they’re not exclusively Rails‑focused, they integrate Rails into agile, full‑stack engagements—covering architecture design, API development, performance tuning, modern DevOps support, and long-term maintenance. Their London location and experience working across web, AI/ML, and marketing contexts make them a versatile partner for Rails‑based digital product development.

9. Unboxed

Unboxed, founded in 2005 and based in London, has spent more than 15 years specializing in Ruby on Rails development. They build bespoke, high-performance web applications—from MVPs and business-critical platforms to high-traffic public services—using Rails’ conventions for rapid, agile delivery. They also provide code audits, architecture advice, performance tuning, team augmentation, and second-line support and hosting. Their leadership includes a former Rails Core team member guiding development best practices.

Unboxed has substantial experience in the public and civic sectors, having delivered platforms like government petitions sites, clinical healthcare systems, complex planning tools, and event-ticketing applications. Their development approach balances user-centred service design with deep Rails technical know-how, enabling scalable, secure, and maintainable solutions built with agility and long-term reliability.

10. Sloboda

Sloboda, founded in 2010, is a Ruby on Rails–focused software development company that has delivered more than 100 RoR-based products worldwide. With a team of over 70 experienced Rails developers, they provide full-cycle services including MVP development, custom web applications, API platforms, code audits, performance optimisation, Rails upgrades, and long-term support.

They have deep expertise across industries such as fintech, marketplaces, real estate, media, and healthcare. Known for strong technical standards, fast team scaling, and structured development practices, Sloboda has built a reputation as a reliable partner for scalable, secure, and maintainable Ruby on Rails solutions.

11. thoughtbot

thoughtbot, based in London are a leading hub for Ruby on Rails development, backed by over 20 years of Rails expertise across their global consultancy. Since the early days of Rails, they’ve supported startups, enterprises, and public sector organizations with custom web applications built on clean architectures and test‑driven development practices.

Their Rails services cover the entire product lifecycle, including MVP builds, technical audits, performance optimization, upgrades, and ongoing support. They also offer team augmentation and mentorship, embedding senior Rails developers to strengthen client teams while ensuring scalable, maintainable, and high-quality solutions.

12. Add Jam

Add Jam is a Glasgow‑based web and mobile development agency with over a decade of experience in building and refining Ruby on Rails applications. As a core service pillar, their Rails team helps clients take new Rails projects from idea to deployment, upgrade legacy apps to the latest Rails 8 version, and provide continuous maintenance and consulting. Their expertise includes technical audits, code reviews, performance optimisation, smooth Rails upgrades, and long‑term support.

Their developers integrate Rails with modern tools like Hotwire, Stimulus, and ViewComponent to deliver well‑structured, scalable applications. Whether starting fresh or rescuing older systems, Add Jam offers expert Rails consulting and delivery that focuses on maintainability, secure architecture, and efficient growth.

13. Commit Digital

Commit Digital is a UK-based Ruby on Rails software development team headquartered in Doncaster, with around 16 years of combined experience in Rails development. They operate entirely in-house—no outsourcing—and offer direct collaboration with all Rails programmers on your project. Their main strengths lie in building lightweight, custom Rails applications tailored to the direct-to-consumer (D2C) and e-commerce sectors, including integrations with CRM platforms, warehousing systems, accounting tools, courier APIs, and other external services.

They’re also adept at developing Rails backend systems for mobile applications using REST or GraphQL APIs, rapidly prototyping new ideas with Rails’ built-in productivity, and reviving legacy Rails projects through upgrades, feature additions, and test-driven development. Their team emphasizes clear communication, transparency, and pragmatic agile delivery to ensure direct and reliable service.

Why Hire One of the Best Ruby on Rails Development Companies?

With more and more businesses competing in the digital space, a powerful, scalable, and well-built Ruby on Rails application can be the key to standing out and driving real results for your business.

Our team specialises in building high-performing Rails applications that not only look great but also deliver measurable impact – whether that’s streamlining operations, improving user experience, or boosting conversions.

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