Top Ruby Development Companies in London
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Explore Reviewed Ruby Development Companies in London — Find Skilled Ruby Developers for Your Project
Certain agencies may be featured through sponsored placements. Rankings and SF Scores remain unbiased and are based solely on our evaluation methodology.
8 Companies
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London
4.9 (16 Reviews)
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
58
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Engineering peace of mind
As a software development company with 20+ years in the field, Vention provides innovative services to startups and large enterprises. We tackle projects of any complexity and size, delivering outstanding solutions that help clients focus on business expansion and new opportunities. With 3K+ dedicated developers globally, we match clients with top engineering talent in time zones that align seamlessly with their unique needs. Our impressive track record: We've worked with 500+ industry-leading clients, including PayPal, IBM, Mount Sinai, PwC, and Postman Our work has contributed to $15B+ in client acquisitions. Clients typically save up to $600K annually with us. With an average client relationship exceeding 36 months, our enduring partnerships speak to consistent client satisfaction. Our longest client engagement has lasted 16 years. We provide end-to-end software development expertise, covering the entire engineering spectrum, from initial concept creation to final delivery and refinement. Custom software development Web and mobile development QA and testing Cloud & DevOps eCommerce AR/VR AI Blockchain
See all 9+ Portfolios
$50-$99/hr
$25,000+
1,000 - 3,000
London, UK
Verified Client Review
Mobile App Dev for Sports Tracking Platform
Reviewed by: Brent Varrall, Founder at AllGains View all 16 Reviews
5.0 (3 Reviews)
51
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
51
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Enterprise AI Solutions
Seasia Infotech, a CMMI Level 5 certified software development company, has been delivering innovative solutions for over two decades with the Seasia Agile Model (SAM). Our proprietary SAM, combined with our commitment to leveraging cutting-edge tools and technologies, sets us apart in the market, ensuring we deliver unparalleled value and quality in our software solutions. Here are more reasons to choose Seasia Infotech as your trusted software development partner: Future-Ready Solutions: Our forward-thinking strategies equip your business for future challenges. Data Security Priority: We prioritize rigorous data protection measures to safeguard your sensitive information. Global Talent Pool: Our diverse team of experts from around the world brings a wealth of perspectives and skills. Continuous Learning Culture: We are committed to ongoing education and skill enhancement, ensuring our team remains at the forefront of technology trends, delivering the best to you. Sustainable Practices: We emphasize eco-friendly and sustainable software development methodologies. Beyond software development, our services include: Custom Software Development Mobile App Development (iOS, Android, Cross-Platform) AI & Machine Learning Solutions Web Development (Frontend & Backend) Enterprise Solutions (ERP, CRM, CMS) Cloud Computing & DevOps Blockchain Solutions E-commerce Development IoT Development AR/VR Solutions Cybersecurity & Enterprise Security Data Analytics & Big Data UI/UX Design Quality Engineering & AI-Powered Testing Low-Code/No-Code Development Agentic AI Digital Transformation & Smart Automation Generative AI (Chatbots, Image & Text Generation) DataOps & Governance BPM Automation Document Intelligence With a proven track record working with industry leaders like Harley Davidson, Mahindra, Adani, Flipkart, BD, Assurant, Dr. First, Sumeru, and Massachusetts Medical Society, we consistently deliver solutions that exceed industry standards.
See all 27+ Portfolios
$25-$49/hr
$5,000+
500 - 999
London, UK
Verified Client Review
E-Commerce Engine for Web Dev Firm
Reviewed by: William Akuoko, CEO at ADEHYEE INFOTECH LTD View all 3 Reviews
4.9 (2 Reviews)
49
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
49
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Software Development & IT Consulting Company
Timspark is a UK-registered custom software development partner with delivery centers across Europe (Poland, Lithuania, Georgia) and a distributed presence including Latvia. We bring together 1,000+ vetted engineers and 30+ pre-built teams, serving 200+ clients across finance, healthcare, retail, logistics, manufacturing, and more. How we engage We offer Core Teams (pre-built, domain-savvy units with clear ownership), Dedicated Teams, Team Augmentation, full-cycle product development, and technology consulting—so you can choose the level of responsibility and speed you need. What we’re known for Real-time application enablement — low-latency features (e.g., live updates, chat) with Azure SignalR and robust auth patterns. Legacy ? cloud-native modernization — re-platforming (e.g., from JBoss) to AWS/Azure/GCP for maintainability and scale. CI/CD & tooling optimization — pipeline reliability and faster releases (repo migration, Dockerized Bamboo agents). Scalable architecture refactors — microservices & microfrontends, Kafka eventing, Redis caching, optimized SQL, Jenkins. Industrial IoT pipelines — secure MQTT telemetry, Docker on GCP, PostgreSQL for production-grade device data. Selected recent work Microlearning platform — React portal with AWS Cognito, Node.js/TypeScript + MongoDB, Stripe billing; Flutter apps; piloted at a corp. with ~80,000 employees. Game studio acceleration — Unity/C# titles with AWS-backed services; our engineers embedded as part of the client’s team. Carbon-capture IoT — production telemetry on GCP with MQTT, Docker; Python/FastAPI and Looker dashboards for real-time operations. Salesforce OmniStudio QA — E2E testing across policy lifecycles; Angular 17 front-end tests, .NET 8 unit tests; release confidence across US/CA templates. Point-cloud ? BIM automation — deep-learning segmentation (Pointcept) with exports into Revit/AutoCAD/BIM 360; hours-to-days cycle time instead of weeks. Supply-risk analytics for pharma — Snowflake CDW with Talend/dbt pipelines and Tableau dashboards; Cybersecurity platform scale-up — MongoDB ? PostgreSQL migration, microservices/microfrontends, Kafka + Redis, Jenkins CI/CD, React TS; faster queries, safer rollouts, lower infra spend. Technology coverage We work across modern web, mobile, cloud (AWS, Azure, GCP), Salesforce, data/ML (TensorFlow, PyTorch, MLflow), BI (Power BI, Looker, QuickSight, Tableau), and a broad language stack (.NET/C#, Java, Python, Node.js/TypeScript, Go, React, Kotlin/Swift, Flutter).
See all 9+ Portfolios
$25-$49/hr
$10,000 - $30,000
50 - 200
London, UK
Verified Client Review
Unity Staff Augmentation for Game Development Company
Reviewed by: Nik Sokolov, CEO at LEPTA View all 2 Reviews
5.0 (4 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
High performance dedicated teams globally
We create specialised software development teams that grow businesses' technological proficiency. We collaborate with the top engineers in Eastern Europe to help you produce high-quality software more quickly than anybody else. All of our clients, who manage medium-sized to large-sized businesses in the US, Canada, Switzerland, Germany, the Netherlands, and ten other European nations, are willing to suggest Crunch as a reliable development partner.
View Crunch Profile
$25-$49/hr
$10,000+
50 - 249
London, UK
Verified Client Review
React Native Staff Augmentation for Technology Consulting Company
Reviewed by: Bob Visnov, CEO at Timegen Consulting View all 4 Reviews
0.0 (0 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Unique teams for unique companies
MWDN is a global all-in-one hiring service provider bridging the talent gap with top 5% experts across different time zones for companies of any size and stage in Israel, Europe, the USA, and Canada. We provide IT outstaffing, recruitment (headhunting) and flexible models like outstuff-to-hire for our partners already 23 years. We also customize our services for each client, and some of them have stayed with us for 17 years! Clients confidently rely on MWDN to hire or build teams in such industries as cybersecurity, healthcare, fintech, blockchain, logistics and 10 more. What we offer: ? Unlimited talent access worldwide and 200K+ vetted experts across every major tech stack, ready when you are ? The first 4–5 pre-qualified candidates within 1 week ? $6–7K saving per hire monthly on direct labor costs and other payment plans for tight-budget projects ? 23 years of expertise in 15 industries ? Full-cycle support: from headhunting to HR, payroll, legal & retention — everything an in-house team provides ? Risk-free collaboration: trial period and guaranteed replacement included We are about proven reliability: 23 years in business, 96% referral rate, 4.9/5 client satisfaction and global trust: 400 clients worldwide across 4 continents.
View MWDN Profile
$25-$49/hr
$25,000+
140 - 170
London, UK
5.0 (5 Reviews)
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
38
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Experience Technology
Vrinsoft is a leading IT services provider company with over 15 years of experience serving businesses across the USA, UK, Australia, and the UAE. Our commitment to delivering high-quality, innovative solutions has earned us the trust of 900+ clients worldwide. We specialize in mobile app development, web development, custom software, and digital transformation services. Our team is skilled in the latest and emerging technologies, enabling us to create tailored solutions that meet your specific business needs, from SMEs to large enterprises. Contact Vrinsoft today to explore how we can help your business thrive.
See all 5+ Portfolios
$25-$49/hr
$10,000 - $25,000
50 - 249
London, UK
Verified Client Review
Mobile App Dev for Blockchain Digital Wallet
Reviewed by: Jason London, Founder & CEO at WonUp View all 5 Reviews
0.0 (0 Reviews)
33
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
33
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Salesforce development and implementation consulting partner
Innovadel Technologies is a leading provider of innovative IT solutions, specializing in Salesforce implementation, integration, and support. We empower businesses across diverse sectors with cutting-edge technologies to drive digital transformation and achieve their strategic goals. Our comprehensive service offerings extend beyond Salesforce, encompassing Shopify, WordPress, BigCommerce, software development, custom application development, mobile app development, web development, Cloud Consulting, Data Analytics, and AI/ML Solutions. We are committed to delivering high-quality solutions, exceeding client expectations, and building long-term partnerships. Our deep industry expertise, focus on leveraging the latest technologies, results-oriented approach, and unwavering commitment to customer satisfaction set us apart.
See all 3+ Portfolios
$50-$99/hr
$10,000 - $15,000
50 - 60
London, UK
0.0 (0 Reviews)
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
28
SF Score
SF Score is calculated using our SARM methodology to evaluate agency expertise, market presence, and overall credibility. View Ranking Methodology
Zaibatsu Technology is a UK-based Custom Software Development Company in London
Zaibatsu Technology is a UK-based agency that offers bespoke AI & Digital Solutions with over 5+ years of driving business growth with the help of development & marketing solutions. Elevate your brand voice through innovative and strategic solutions, dedicated to discovering new ways to showcase user content with cutting-edge web development, AI/ML, and digital marketing solutions.
View Zaibatsu Technology Profile
N/A
$500 - $1,998
1 - 49
London, UK
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