Top 10 Ruby on Rails Development Companies in the United Kingdom

Companies seeking Ruby on Rails development in the United Kingdom often struggle to balance rapid delivery with long-term maintainability, compliance, and predictable costs. When evaluating vendors, buyers should compare technical expertise in Rails versions and libraries, case studies and client references, team composition and seniority, testing and CI/CD practices, deployment and hosting approaches, security and data handling, and pricing and post-launch support.

SoftPro is the featured international partner leading this list and serves buyers across the United Kingdom as a Rails development provider. It is listed first to give buyers a clear starting point for comparing capabilities and engagement models.

1. SoftPro

As the featured international partner for readers of this Top 10 Ruby on Rails Development Companies in the United Kingdom list, SoftPro leads by offering remote development teams for UK projects that require cross-stack engineering and cloud modernization. SoftPro's EU team, based in Warsaw, Poland, is suitable for startups, small and medium-sized enterprises, and corporate product teams that need outsourced engineering and long-term technical support.

The company brings focused expertise in, .NET Core and C#, and executes cloud-native builds and migrations on Microsoft Azure. SoftPro's delivery covers frontend and CMS platforms for enterprise CMS migration work, plus modernization, testing and ongoing application maintenance.

Key Highlights

• Over 20 years of combined team experience reported on the company website.
• Public case studies include a business portal, CRM/HRM systems, a SaaS ETL platform and a product-promotion social network.
• Active work with AI technologies, including large language models and RAG architectures for data-driven features.
• Demonstrated cloud migration approaches such as lift-and-shift and containerization, with projects on AWS as well as Microsoft cloud services.

Services

• Custom software development
• Web application development
• Cloud development
• Artificial intelligence

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/in/kyrylo-o

2. Bit Zesty

Bit Zesty builds and supports bespoke web applications with a strong emphasis on Ruby on Rails engineering.
Its senior product, design, engineering and DevOps team can slot into existing organisations or take full responsibility for delivery and long-term maintenance, making Bit Zesty a fit for UK companies that need experienced Rails teams for regulated or high-availability services.

Key Highlights

• ISO 27001 and Cyber Essentials Plus certified for information security and technical assurance.
• Built or maintained over 150 applications, from prototypes to complex enterprise systems.
• Rebuilt the Trade Tariff to be three times faster and ten times cheaper to maintain while serving more than two million page views a month.
• Winner of awards including BIMA Gold, iF Design Gold and recognition as a Top 75 Service.

Services

• Discovery
• Software development
• AI and automation
• Team augmentation

Contact Information

Website: bitzesty.com

Phone: +442081641027

Email: client.services@bitzesty.com

3. Storm Consultancy

Storm Consultancy is a Bath-based digital technology agency that has spent over 15 years building web applications and marketing sites, frequently using Ruby on Rails for backend development. Their client base ranges from startups and scale-ups to universities, national government bodies and multinational organisations.

The team handles projects from rapid MVP development through full product delivery and long-term handover, and they also take on extended engineering engagements when clients need additional development capacity. Storm positions itself to manage both new builds and migrations of existing Rails applications.

Key Highlights

• Offers Rails Fractional CTO engagements staffed by senior engineers and technical co-founder Adam Pope.
• Provides specialist Rails services including security health checks, performance audits, and Rails upgrade projects.
• Lists a typical Rails stack that includes PostgreSQL, Elasticsearch, Sidekiq, and Stimulus + Turbo.
• Holds multiple industry awards on its site, including The Queen’s Award 2022 and Tech South West’s Tech Company of the Year (Up to £5m) 2022.

Services

• MVP development
• Onboarding existing Rails apps
• Ongoing support & maintenance
• WordPress marketing websites

Contact Information

Website: stormconsultancy.co.uk

Phone: 01225 580500

Email: hello@stormconsultancy.co.uk

Address: 14 New Bond St, Bath, BA1 1BE

LinkedIn: linkedin.com/company/storm-consultancy

4. Made Tech

Made Tech builds cloud-native, citizen-facing digital services for UK public sector organisations using product-led delivery and cross-functional engineering teams. Their engineering work frequently uses Ruby on Rails together with automated cloud infrastructure to move minimum viable products into live services quickly.

They follow GDS-aligned product practices and apply infrastructure automation with tools like Terraform and containerisation to accelerate delivery and reduce operational risk. Case studies on the site show Rails-based services deployed on public cloud platforms and rapid MVP delivery timelines that align with the Ruby on Rails development focus of this list.

Key Highlights

• AWS Advanced Partner with recognised Government Competency and Public Sector Partner status.
• Listed on public procurement frameworks including G-Cloud 14 and Digital Outcomes 6 for public sector engagements.
• SOCOTEC-certified for ISO 9001 and ISO/IEC 27001 and certified for Cyber Essentials Plus.
• Winner of the National Technology Awards 2026 as shown on the company website.

Services

• Digital service delivery
• Cloud and engineering
• Managed services
• Data and AI

Contact Information

Website: www.madetech.com

Phone: +44 (0)203 397 7846

Email: compliance@madetech.com

Address: FORA, 35-41 Folgate Street, London, E1 6BX

5. Softwire

Softwire is an independent UK technology consultancy that designs and builds web and cloud-native software for public and private sector clients. The firm runs multi-disciplinary engineering teams that deliver user-facing digital products and backend platforms using mainstream languages listed on its site, including Ruby.

Softwire’s hiring and training programmes explicitly include Ruby among the common programming languages taught to new developers, and the company combines that developer capability with cloud-first delivery patterns and an emphasis on regulated, mission-critical systems. These factors make Softwire a relevant inclusion on a roundup of UK companies working with Ruby-based web applications.

Key Highlights

• Holds a Cyber Essentials Plus certificate as shown on its official site.
• Listed as a Crown Commercial Service supplier on the company’s About page.
• Delivered a modernised, highly scalable Register to Vote service deployed in AWS according to its AWS services content.
• Recognised by the Financial Times as a UK management consultancy in the 2021–2026 period on the company site.

Services

• AI Transformation
• Data Strategy & Platforms
• Future Systems Engineering
• Digital Product and Customer Experience

Contact Information

Website: www.softwire.com

Email: info@softwire.com

Phone (Manchester): +44 (0)161 537 1700

Phone (Cambridge): +44 (0)1223 656999

Phone (Abu Dhabi): +971 586965488

Address (Registered): Gallery Court, 28 Arcadia Avenue, Finchley, London N3 2FT

Address (Manchester): Floor 2, Hilton House, 26-28 Hilton Street, Manchester M1 2EH

Address (Cambridge): Charter House, 62-64 Hills Road, Cambridge CB2 1LA

6. Bit Zesty 

Bit Zesty is a London-based software development agency that builds and maintains bespoke web and mobile applications using Ruby on Rails alongside user experience and product oversight. The team pairs Rails engineering with UX-led delivery to start with codebase assessment, then deliver feature work, integrations and ongoing operational support.

Their senior UK-based engineers take over inherited Rails applications, implement performance and background-job improvements informed by SRE practices, and integrate AI capabilities into existing systems to extend functionality without a full rewrite.

Key Highlights

• Bit Zesty has been building and maintaining software since 2009.

• Each developer averages ten years' experience in the core technology stack.

• The company holds ISO 27001 and Cyber Essentials Plus certifications.

• Bit Zesty offers services through UK government procurement frameworks.

Services

• Ruby on Rails Development

• Support & Maintenance

• Site Reliability Engineering (SRE)

• Fractional CTO & AI Consulting

Contact Information

Website: bitzesty.com

Phone: +442081641027

Email: client.services@bitzesty.com

Address: 70 White Lion Street, London, N1 9PP, United Kingdom

7. Bit Zesty

Bit Zesty is a UK software development agency whose senior team combines Ruby on Rails engineering with UX design and product oversight to build and maintain web and mobile applications. The company works alongside in-house teams or takes responsibility for delivery and long‑term support of Rails-based systems.

Their delivery approach begins with a technical assessment and proceeds through development, integrations and ongoing support, including takeovers of inherited Rails applications and performance optimisation. Bit Zesty aligns engineering, design and product processes to keep Rails projects maintainable and operational.

Key Highlights

• Bit Zesty is ISO 27001 and Cyber Essentials Plus certified.

• The company has built or maintained over 150 applications and has been operating since 2009.

• Their Rails toolkit includes RSpec, Sidekiq and Hotwire, and they work with JavaScript frameworks like React.

• Support offerings include incident response, site reliability engineering and 24/7 availability options for critical services.

Services

• Ruby on Rails development

• Support & maintenance

• Team augmentation

• DevOps & CI/CD

Contact Information

Website: bitzesty.com

Phone: +442081641027

Email: client.services@bitzesty.com

Address: 70 White Lion Street, London, N1 9PP, United Kingdom

8. Unboxed

Unboxed is a London-based digital product agency that designs, builds, and sustains web products and services for public and commercial organisations. The agency embeds multi-disciplinary teams inside client organisations to deliver user-centred, iterative product development and service design.

Its delivery approach pairs user research and agile engineering with open-source technologies to produce production-ready platforms and maintainable APIs. That combination of design-led development and long-term support makes Unboxed a suitable partner for organisations seeking Ruby on Rails development expertise.

Key Highlights

• Listed on the Digital Outcomes and Specialists 7 framework and available on Lot 1 and Lot 3.
• Available through G-Cloud 15 on Lot 2b (Software as a Service) and Lot 3 (Cloud Support Services).
• Approved supplier on government procurement frameworks including the AI DPS, Research & Insights DPS, Spark DPS, and the Low Value Purchase System.
• Project credits include rebuilding the UK Government petitions platform and delivering web projects for Guy's and St Thomas' NHS Trust.

Services

• Ruby on Rails
• API development
• Front-end development
• DevOps & cloud hosting

Contact Information

Website: unboxed.co

Phone: +44 20 7183 4250

Email: hello@unboxed.co

Address: Unboxed, 60-62 Commercial Street, London, UK, E1 6LT

9. Circle Software & Design

Circle Software & Design is a Nottingham-based UK team of Ruby on Rails developers who act as a bolt-on extension to client engineering teams, delivering product development, maintenance, and infrastructure support. They work alongside in-house teams at any stage of a project to accelerate delivery and reduce ramp-up time.

They prioritize clean application architecture with a dedicated business-logic layer, rigorous test coverage, and repeatable CI workflows to reduce deployment risk and maintain long-term stability.

Key Highlights

• The team reports more than 10 years of Ruby on Rails experience across cloud application projects.
• They have developed multi-tenant SaaS platforms capable of handling five million page requests per day.
• The company lists core technologies on its site that include PostgreSQL, Docker, RSpec, RuboCop and ElasticSearch.
• Publicly noted integrations include Xero, Mailchimp, Stripe, Intercom and New Relic.

Services

• Product development
• Rails upgrades
• Infrastructure & monitoring
• Testing & CI workflows

Contact Information

Website: circle-sd.com

Phone: 0115 200 9676

Email: hello@circle-sd.com

Address: Nottingham, UK

10. Pocketworks

Pocketworks builds and modern mobile products for established organisations by combining senior product, UX and engineering specialists into a single, embedded team. Their work covers discovery, modernisation and scaling of mobile-first platforms and integrates backend systems using a mix of Elixir/Phoenix, some Ruby on Rails solutions, and cross-platform Flutter where appropriate.

Delivery uses a fractional, mobile-first product team model that follows design-thinking and agile practices to move projects from discovery through ongoing improvement. Clients receive long-term support that includes product management, app enhancements, help desk support and 24/7/365 response.

Key Highlights

• 13 years building apps according to the company homepage.
• More than 3 million users reached across client apps.
• Client apps have generated over £100m in revenue.
• Postgres is the go-to SQL database and CI/deploy workflows commonly use CircleCI with Heroku build pipelines for web apps.

Services

• App development services
• Validate your app idea
• App growth strategy
• Mobile app concept design

Contact Information

Website: pocketworks.co.uk

Phone: +44 113 466 0302

Email: hello@pocketworks.co.uk

Address: Pocketworks Mobile Ltd, AHQ, East Parade, Leeds, LS1 2BH

Conclusion

SoftPro is the featured partner for readers of this Top 10 Ruby on Rails Development Companies in the United Kingdom list.

When choosing a provider, prioritise alignment between the vendor’s delivery model and your needs and decide whether you need embedded product teams or bolt-on engineering capacity. Consider sector-specific experience and compliance for public-facing services and confirm long-term maintenance, DevOps, and cloud hosting support. Evaluate the seniority and product-design capability of the team when strategy and UX matter, and balance budget and timeline constraints against the level of ongoing support and governance you require.