
Top 100 Ruby on Rails Developers in London
October 2023Looking for a top Ruby on Rails development firm in London?
Searching for and vetting potential partners is an exhausting process.
To assist you in your search for a partner, we’ve compiled this list of the top Ruby on Rails developers in London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
>List of the Best London Ruby on Rails Development Firms
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1
- $10,000+
- 50 - 249 employees
- London, United Kingdom
RootQuotient is a technology and development partner based in Montreal. The team of 12 also has an office in Chennai, India and offers cross-platform app and software development services to its midmarket and small business clients.
Clients
- Siemens Gamesa
- Verizon
- Nokia
- L&T
Industries
Notable Project
An oncology informatics company has hired RootQuotient for development services on four projects. The team has evaluated the client’s requirements and put together teams and outlines to begin development.
"RootQuotient has made us understand our product better because of their helpful recommendations."
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2
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.
Clients
- Philips
- Nike
- Porsche
- Coca Cola
Industries
Notable Project
A cloud communication platform hired Infinum to develop a website. The team also performed QA tests and was responsible for the management of the entire project.
"They have excellent project management and support."
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3
- $50,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.
Clients
- Samsung
- Johnson & Johnson
- GlobePayroll
- Siemens
Industries
Notable Project
A ride-hailing company has hired Andersen Inc. to develop two new financial products. The team is responsible for front- and backend development, integrations, testing, and analytics set-up.
"The team is highly flexible and responsive to any business need in no time."
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4
- $10,000+
- 250 - 999 employees
- London, United Kingdom
TkXel is a mobile app and web development company founded in 2007. With its headquarters in Reston, Va., and an office in Lahore, Pakistan, they have a team of 318 employees. Their services include mobile app development, web development, and custom software development. They primarily serve small and midmarket clients.
Clients
- ABB
- Nokia
- Groupon
- TELUS
Industries
Notable Project
An IT services company hired Tkxel for custom software development. They were tasked with innovating and streamlining the client's technology to boost efficiency, security, and growth.
''Their unique approach to problem-solving and attention to detail impressed us.''
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5
- $50,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Based in Vienna, VA, 10Pearls designs and maintains apps for various companies. The company and its nearly 350 employees have experience in cybersecurity, product development, and UX/UI design.
Clients
- HughesNet
- Johnson & Johnson
- PayPal
- CocaCola
Industries
Notable Project
10Pearls provides software development services for a financial company. 10Pearls is developing a custom fintech software using MEAN stack, including MongoDB, Express.js, React.js, and JavaScript.
“10Pearls’ company’s culture and organization are excellent.”
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6
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Imaginary Cloud is a Web, Mobile and AI Software Development and UX/UI Design Company with offices in the UK, US and Portugal. In the last 11 years they have helped build and scale more than 300 applications, from Start-ups, Scale-ups to Enterprises, winning several global awards. They offer a comprehensive skill set of developers, data scientists and designers coupled with a streamlined agile process.
Clients
- Nokia
- Sage
- Ernst & Young
- BNP Paribas
Industries
Notable Project
Imaginary Cloud provides engineering staff augmentation for an enterprise email platform. The team provides engineers who support the client’s internal team with integrations-related projects.
“The Imaginary Cloud team is very easy to work with.”
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7
- $50,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Robosoft Technologies is a full-service digital experiences agency offering digital advisory, design strategy, UX/UI services, application development & maintenance and expertise in emerging technologies such as AR, VR, blockchain, chatbots and more. Established in 1996 and headquartered in San Francisco, the team of 500+ has offices in Mumbai, Udupi, Bengaluru, Chicago, and New York.
Clients
- Retail: Walmart
- Target
- JCPenney
- Victoria's Secret
Industries
Notable Project
A tech company has hired Robosoft Technologies to perform manual and automation testing. The team is also tasked with executing regression and ensuring the sanity of the production environment.
"They did deliver their tasks on time and without any issues."
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8
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Bit Zesty is a custom software development firm. They provide custom software development, ux/ui design, web development, application management & support, and more and were launched in 2009. Their small team is London, United Kingdom-based.
Clients
- Oxford Medical Simulation
- Trussell Trust (UK Foodbanks)
- Queen's Awards for Enterprise
- HMRC
Industries
Notable Project
Bit Zesty is developing a healthcare recruitment agency’s software solution. They’ve conducted discovery sessions before building the tool using Ruby on Rails. They’re currently maintaining the app.
"They understand the pulse of the customer and do not hesitate to make recommendations."
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9
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Blink22 is a mobile and web development firm based in Alexandria, Egypt. Founded in 2015, their team of 125 serves clients in the transportation and communal workplace sectors. Services include, iOS, Android, and React Native development.
Clients
- Jumia
- Careem
- Khatabook
- Geidea
Industries
Notable Project
Blink22 helps a subscription-based digital library with product management. They've implemented a machine learning book recommendation engine, made UI/UX enhancements, and designed emails and landing pages.
"They were really good at adjusting to our different needs."
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10
- $100,000+
- 50 - 249 employees
- London, United Kingdom
Digiryte is a web and mobile app development company based in Manchester, United Kingdom with another UK office in Preston. Since 2015, their team of 28 has been specializing in mobile app development, custom software development, and web development for midmarket clients.
Clients
- NHS
- Channel 4
- Close Brothers
- Hinch Property Management
Industries
Notable Project
Picking up from a previous vendor, Digiryte developed a mobile app for an app development company. They're responsible for the app's maintenance and operational support.
“Digiryte is always forthcoming with the best way to do things.”
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11
- $10,000+
- 10 - 49 employees
- Watford, United Kingdom
AppDrawn is a software solutions company founded in 1999. Their headquarters are in London and they have a second office in Barcelona. Across these 2 locations, they have a team of a dozen staff that do custom software development, web development, and mobile app development for small and medium-size businesses.
Clients
- Aspire Customer Communication Services
- Imagine Property Group
- Renteq Highways
- HSM
Industries
Notable Project
Appdrawn Software Development helped an education company develop an English language testing platform, along with blended versions of the client's product. The goal was to ensure robustness and scalability.
"They worked collaboratively with project managers within the company to provide a clear plan at all stages."
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12
- $10,000+
- 250 - 999 employees
- London, United Kingdom
Softwire is a digital design, engineering and support agency, with offices in London, Cambridge and Manchester. Employing over 200 engineers we create bespoke digital software, mobile apps, and offer strategic IT consulting for some of the UK’s leading brands including the BBC, David Lloyd Clubs, Channel 5 and many large Government Departments.
Clients
- The BBC
- David Lloyd Clubs
- RSA
- The Cabinet Office
Industries
Notable Project
A property portal company has collaborated with Softwire for custom software development using React, Java, and more. They manage product research, MVP creation, launching process, and various optimization.
"They operate independently and raise issues only when necessary."
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13
- $10,000+
- 250 - 999 employees
- London, United Kingdom
Established in 2007, Systango Technologies is a global digital product development agency. They are headquartered in London and have additional international offices. Most clients are small businesses, many of which are in the entertainment, utilities, and hospitality sectors.
Clients
- MGM
- Target
- Grindr
- Deloitte
Industries
Notable Project
Systango helped a team building toolkit provider develop a web app to deliver restaurant training, forms, and checklists. The vendor identified key functionalities and proposed wireframes and UX designs.
"There was clearly a healthy company culture that translated into their work and overall approach to our relationship."
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14
- $50,000+
- 50 - 249 employees
- London, United Kingdom
3 SIDED CUBE is an accredited app development and digital product agency headquartered in Bournemouth, England with additional locations in London, Chicago, and Washington, DC. Since their ambitious beginning in 2009, the team of about 38 has collaborated with startups and international organizations, reaching over 87 countries and more than 100 million global downloads. In addition to mobile app development, they also provide UX/UI design services to inspirational organizations.
Clients
- American Red Cross
- UNHCR
- Global Forest Watch
- UNESCO
Industries
Notable Project
A government organization hired 3 SIDED CUBE to provide mobile app design and development. With the help of an R&D process, they're creating a gaming app to help engage young people in combating climate change.
"They're a passionate, enthusiastic, and young team."
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15
- $100,000+
- 50 - 249 employees
- London, United Kingdom
8th Light is a software consultancy firm headquartered in Chicago, with other offices in Los Angeles, New York, and London. The agency and its team of 110+ has experience in web development, custom software development, web design, mobile app development, and cloud consulting.
Clients
- Royal Academy of Arts
- AXUS Travel App
- Go Big Recruiting
- Law Vault
Notable Project
8th Light developed and designed an Android app and accompanying software for a large ticket distribution company that allowed the consumer to receive tickets to high demand events.
"They were great with collaborating on the right way for the project to be managed."
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16
- $1,000+
- 2 - 9 employees
- London, United Kingdom
Pixated is a marketing agency in London, England. Founded in 2018, they have about 2 employees that serve small-business and midmarket clients in the gaming, e-commerce, and advertising industries. Services include social media marketing, mobile app marketing, and PPC.
Clients
- Tesco
- Wicked Gummy Co
- Millionaire Beauty
- Vitamasques
Industries
Notable Project
Pixated has developed a website for a gaming development company. The team has conducted market and competitor analysis, designed the UI/UX, integrated the site with third-party platforms, and performed QAs.
"They truly outdid themselves in terms of creativity, attention to detail, and design and development skills for the video game industry."
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17
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Appetite Creative Solutions is a creative digital marketing agency in London, England – with offices in Madrid and Dubai, too. Established in 2015, Appetite Creative Solutions has a team of 25 employees. They offer logo, web design, games development, and social media marketing services.
Clients
- Synergy Land
- Tetra Pak
- Elopak
- Jaguar
Industries
Notable Project
Appetite Creative developed a website from scratch for a healthcare company. They had a kick-off meeting where they discussed the project requirements and finalized an informative website for the client.
"Everything was perfect."
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18
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Founded in 2014, Deeper Insights is a London based machine learning and data science consultancy. With another office in Portugal, their team of 10 specialize in artificial intelligence, big data consulting, custom software development, and business consulting. Their mid market and enterprise clients are primarily in the advertising, consumer products, financial services, and health care industries.
Clients
- Smith and Nephew
- Deloitte
- Breast Cancer Now
- IAC
Industries
Notable Project
Deeper Insights developed an AI-powered matching algorithm to pair statements of work with optimal contractors and freelancers. They also built a frontend chatbot to aid users in developing their scope of work.
"On the personal side, I loved their team. They were on time or ahead of time. I can’t fault them for anything."
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19
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Thoughtbot is a web and mobile app development company based in Boston, MA with offices in Austin, San Francisco, New York, Raleigh, Washington D.C, and London. Since 2003, this 50+ team has delivered empowering digital solutions to enterprise-level and small companies alike.
Clients
- Postmates
- Iora Health
- JoyDrive
- SplitFit
Industries
Notable Project
thoughtbot has developed a mobile application for a healthcare company. After discussing the project details and goals, the team has created a roadmap, designs, and solutions to issues.
"The most impactful is thoughtbot's processes, collaboration, and guidance around product development."
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20
- Undisclosed
- 50 - 249 employees
- London, United Kingdom
Fourmeta is an e-commerce development firm founded in 2017. In London, United Kingdom, their midsize team offers e-commerce development, ux/ui design, and web development.
Industries
Notable Project
Fourmeta helped a marketing company completely refactor the web app of their newly acquired business. They performed the front- and backend development and optimized the existing documentation.
"I was very happy with the amount of communication and forecast from the project lead and their on-time delivery."
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21
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Chimpare is a small application development firm. In Whiteley, United Kingdom; New York, New York and Markham, Canada, the firm was launched in 2012. Their services include mobile app development, web development, e-commerce development, ux/ui design, and more.
Industries
Notable Project
Chimpare has developed a B2B e-commerce system for an e-commerce management company. They've designed the UI, built the backend, integrated payment gateways, and provided the client with analytics and reports.
"We were satisfied working with Chimpare."
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22
- $10,000+
- 10 - 49 employees
- London, United Kingdom
Made Tech is a London-based software services provider that was founded in 2010. The company employs a team of 33 that provides e-commerce development, web development, custom software development, and conversion optimization services to mid-size and small businesses.
Clients
- Rocket Internet
- Finery London
- Byron Hamburgers
- On Running
Industries
Notable Project
Working from wireframes and graphics, Made Tech built an e-commerce website for a fashion retailer. The project involved back-end development and customization of a dynamic user experience.
"I do like how personable they are, and how well they can articulate their deep subject matter."
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23
- $25,000+
- 10 - 49 employees
- London, United Kingdom
Purr Digital is a software development agency that has been offering web development, mobile app development, and custom software development to their small business and mid-market clients in the hospitality, arts and entertainment, and consumer products and services industries since 2013. Their 50 employees are based out of their London and Birmingham, UK offices.
Clients
- Elder
- Loyalty Lion
- Unicef
- MCFC
Industries
Notable Project
Purr Digital provided custom software development services for a creative and design agency. Their team handled frontend development of a web solution utilizing Laravel and React.
“They’re very collaborative. Purr Digital was open to feedback.”
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24
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Deazy is a small application development company. The Cardiff, United Kingdom-based agency was founded in 2016. Their services include mobile app development, custom software development, web development, ux/ui design, and more.
Clients
- RAC
- Curve
- Influencer
- Popeyes
Industries
Notable Project
Deazy is helping a SaaS company develop a roadmap for their application. The product has multiple web apps, two Android apps, and one iOS app.
"We get the right mix of communication, culture, and price that fits our business needs."
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25
- $100,000+
- 50 - 249 employees
- London, United Kingdom
Elsewhen, a midsize software development firm, is located in London, United Kingdom. Their services include custom software development, enterprise app modernization, IT strategy consulting, business consulting, and more.
Industries
Notable Project
A transportation company hired Elsewhen to develop and design a microsite. The team was responsible for implementing a CO2 calculation feature, prototyping, testing, and graphic design.
"Very satisfied with the results, and I wouldn't hesitate to continue working with Elsewhen again."
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26
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Hyper Apps is a mobile technology firm founded in 2015 with offices in Cluj-Napoca, Romania, Sydney and Melbourne, Australia, and London. Hyper Apps' team of about 100 employees specializes in mobile app development, web development, and UI/UX design.
Industries
Notable Project
Hyper Apps provided mobile app development for an event planning platform. Their team collected information then proceeded to create deliverables for the client's organization.
"Communication with the team is seamless."
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27
- $1,000+
- 2 - 9 employees
- London, United Kingdom
Nexus Creative Agency - Web Design & Development is a web design agency. They offer web design, ux/ui design, web development, branding, and more and were launched in 2020. Their small team is London, United Kingdom-based.
Industries
Notable Project
Nexus Creative Agency - Unlimited Web Design & Development was hired by a workspace provider to do a complete overhaul of their site. This involved optimizing their CMS and enhancing the site's overall design.
"Nexus Creative Agency's customer service was exceptional."
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28
- $10,000+
- 50 - 249 employees
- London, United Kingdom
UMM Digital is a hybrid branding agency with headquarters in Chennai, India with other offices in the UAE and Belgium. Since its start in 2007, the team of about 35 has provided web and mobile app development, UX/UI design, digital strategy, and branding services.
Clients
- Playmonk eSports
- Acorn
- Larsen & Toubro
- Zceppa
Industries
Notable Project
UMM Digital created the UI/UX of the mobile and web application portals for a parking management solution. The software uses Google Maps to decipher how many and which parking spaces are available for users.
“From my perspective as a software developer, I give them top marks for quality and value.”
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29
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Esynergy is a big data analytics company. They are headquartered in London, United Kingdom and have a midsize team. Their services include BI & big data consulting & SI, cloud consulting & SI, custom software development, mobile app development, and more.
Industries
Notable Project
A streaming services company hired esynergy for cloud and cybersecurity services. They hosted their servers on AWS, took care of coding, and created a high-security password vault, among other tasks.
''All outcomes and goals that were set at the beginning of the project were fully met.''
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30
- Undisclosed
- 2 - 9 employees
- London, United Kingdom
Ronins is a web design company. Founded in 2021, the small company is based in London, United Kingdom and Guildford, United Kingdom. Their team specializes in web design, ux/ui design, web development, mobile app development, and more.Notable Project
Ronins was hired by a software company to conduct a strategy audit and overhaul of the client's website UI, branding, and positioning. This involved enhancing the client's marketing strategies.
"Their professionalism stood as a cornerstone in our collaboration."
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