Top C# (C-Sharp) Development Firms in London

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Software Development C# (C-Sharp) Development London

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All C# (C-Sharp) Development Companies in London

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(0 review)
IT Quality Project Delivered
We're a Mauritian powerhouse, blending over 17 years of experience with agile, remote teams in Madagascar. Our passion is crafting stunning web and mobile solutions from the ground up. We don't just build software; we engineer perfection through rigorous testing. By harnessing the power of open-source technologies and infusing every project with AI, we deliver optimal, future-proof solutions for leading industries like banking, insurance, and HR. You get competitive rates, and we get the thrill of transforming your vision into reality.
Looking for work in C# (C-Sharp) Development
Located in London, United Kingdom
From €1,000 for C# (C-Sharp) Development
Worked in Human Resources
Speaks English, French
11-50 members
Magora
5
(6 reviews)
PRODUCT DEVELOPMENT TAILORED FOR YOUR BUSINESS
Magora is an AI, Web & Mobile product consultancy that offers digital services to businesses across a broad range of industries, including Healthcare, Education, Retail, eLearning and eCommerce. Whether a custom AI product, B2C or a B2B project, iOS or Android app, first of all, we take the time to understand your goals, your product and the end-user’s needs. Our software development cases are loved by users for their convenience and appreciated by customers for the real value they add to your business.
Looking for work in C# (C-Sharp) Development
Located in London, United Kingdom
From €5,000 for C# (C-Sharp) Development
Worked in Entertainment & Events (+9)
Speaks English
11-50 members
TechGropse Pvt. Ltd.
4.9
(106 reviews)
Next-Gen Apps for Next-Gen User
Highly recommended
TechGropse is a leading mobile app development company headquartered in Dubai with a prominent global presence in the UAE, USA & India. Established in 2015, we transform innovative ideas into reality, becoming a go-to name for businesses seeking stunning, high-performance mobile applications. Vision and Mission We help businesses grow by developing stunning mobile apps that users love. Our mission is to deliver high-quality, personalized solutions that meet the unique needs of every global client as a dedicated partner in your success. What We Do & Strategic Services TechGropse offers end-to-end services to meet all your digital transformation needs: Custom Mobile App & Software Development Expert UI/UX Design & Prototyping Cross-Platform & Native App Development Maintenance and Support AI Chatbot Development Machine Learning & AI Implementation (Agentic AI) Advanced Cloud Computing & DevOps Innovative IoT Development Industry Expertise We excel in developing apps for: Healthcare, FinTech, Logistics, Construction, Retail, Ecommerce, Energy, Insurance, Travel, Electric Vehicles (EV), and Real Estate. Why Partner With Us Using a stack like React, Node.js, Python, and Flutter, our client-focused team is committed to quality, timely delivery, and affordable pricing. We build long-term relationships through collaboration. Connect With Our Global Offices: USA Office: +1 267 327 4760 Dubai HQ: +971 527 984 766 Email: [email protected] Visit: https://www.techgropse.com/contact
Looking for work in C# (C-Sharp) Development
Located in Greater London, United Kingdom (+2)
From €1,000 for C# (C-Sharp) Development
Worked in Clothing & Accessories (+13)
Speaks English, Arabic(+2)
51-200 members
Future Processing
(0 review)
Achieve your business goals with technology
We are a technology consultancy & software delivery partner .  We advise on the most efficient IT solutions, optimise operations, and drive revenue growth for clients globally. Leveraging our expertise in software and technology, we’ve successfully delivered hundreds of software products for both SMEs and market-leading brands, including Fortune 500 companies. Our approach transforms strategic insights into impactful outcomes, ensuring every solution is designed to deliver measurable business value .  We listen, advise, design and deliver world-class, user-friendly IT products for clients in an agile way. How? Our competences and value-added services are tailored to solve their key business challenges. AI & Automation - Transform into an AI-boosted business. Discover how our services will cut costs, improve productivity, test your ideas, and maximise ROI. Data Science & Engineering - Enrich your data-driven operations, unlock insights, and drive efficiency with modern data science and engineering solutions. Infrastructure & Security - Design and manage resilient infrastructure while strengthening your security posture, including support for regulatory requirements. By shifting from traditional cost-saving to data-driven insights, we prioritise business outcomes. We assist clients with AI & ML, Cloud, Consulting, Cybersecurity, Data Solutions, Digital Product , and Software Development . Get to know us better here: www.future-processing.com
Looking for work in C# (C-Sharp) Development
Located in City of London, United Kingdom (+4)
From €1,000 for C# (C-Sharp) Development
Worked in Legal Services
Speaks English, German(+1)
501-1000 members
Athlon Technology
5
(4 reviews)
Digital experiences that drive growth
Athlon Technology is a digital design and software development agency, founded in 2006 and based in Sofia, Bulgaria. For nearly two decades, we have partnered with organisations like Deutsche Bank, PwC, Amazon, Zebra Technologies, NRG, and Fundpath to untangle complex problems and build software that works in the real world, not just on paper. Our work spans three areas: Product Design & Strategy - UX/UI design, design research, service design, and scalable design systems Engineering - Cross-platform software development, mobile and web applications, system integration, and technical architecture Digital Production Hub - A centralized production capability with dedicated producers managing end-to-end delivery, ensuring alignment across design, development, and business objectives
Looking for work in C# (C-Sharp) Development
Located in Greater London, United Kingdom (+2)
From €5,000 for C# (C-Sharp) Development
Worked in Telecommunications (+10)
Speaks English, Bulgarian(+2)
51-200 members
Poppins
5
(6 reviews)
We are a house of strategy, creative, social and digital technology specialists.
Recommended
Top awarded
We craft beautiful brand expressions, digital experiences and products. All underpinned by thoughtful strategy. We’re driven to help our clients be the best version of themselves through the power of brand and digital. Because we’re certain there is something uniquely special inside each and every business.
Looking for work in C# (C-Sharp) Development
Located in Greater London, United Kingdom
From €1,000 for C# (C-Sharp) Development
Worked in Beverage (+12)
Speaks English, French(+3)
51-200 members
ioSTUDIOS
(0 review)
ioSTUDIOS are a UK based Software Development Agency, creating solutions for sector leading clients.
ioSTUDIOS are a UK based, leading Software Development Agency, creating bespoke software from conception, all the way through to delivery. For many years, we’ve helped transform companies from a variety of sectors and industries, by turning ideas and concepts into a plethora of business changing, bespoke software solutions. Ultimately, this means we are incredibly well versed and experienced in successfully completing software projects for a large variety of organisations.
1 work in C# (C-Sharp) Development
Located in West Midlands, United Kingdom
From €5,000 for C# (C-Sharp) Development
Worked in Travel & Leisure (+4)
Speaks English
11-50 members
Phaedra Solutions
(0 review)
AI-First Web, Mobile & AI Development | Cut Cost, Time & Effort by Up to 80%
🏆 Top-Rated AI-First Development Partner for Faster Go-To-Market Phaedra Solutions is an AI-first product development company helping startups and growing businesses design, build, and launch digital products faster using our Vibe Code approach—combining AI, rapid prototyping, and senior engineering to reduce development time and accelerate go-to-market. Founded in 2013, we’ve helped 300+ companies move from idea to scalable product, supporting platforms that have collectively raised $300M+ in funding. With a global team across the US, Europe, GCC, and Asia, we deliver high-impact solutions with speed, precision, and a 97% client retention rate. 🚀 What Sets Us Apart • AI-first development approach (Vibe Code) • Up to 50% faster development cycles • Strong focus on MVPs, PoCs & rapid validation • 300+ successful product launches • Certified engineers (Google, AWS, Microsoft) • Global delivery across USA, UK, UAE & Europe 💡 Core Capabilities • AI PoC & MVP Development (LLMs, automation, predictive AI) • Full-Stack Web & Mobile Development • SaaS, ERP, CRM & Custom Software • UI/UX Design, Prototyping & Product Strategy • Fractional CTO & Technical Advisory • QA, DevOps, CI/CD & Scalable Architecture ⚡ Built for Speed & Outcomes We replace slow, traditional development with a lean, AI-powered approach focused on rapid validation and continuous delivery. Our teams work closely with founders and product leaders to align technology with business goals—ensuring faster launches, lower risk, and scalable architecture from day one. 🌍 Industries We Serve Healthcare, Fintech, SaaS, E-commerce, Logistics, Event Tech, Esports, Real Estate & more. ⚡ Why Clients Choose Us We help you validate faster, launch sooner, and scale smarter. Whether you're testing an idea, building an MVP, or integrating AI into your product, Phaedra Solutions enables faster execution without compromising quality. 📅 Book a free consultation
Looking for work in C# (C-Sharp) Development
Located in Huddersfield, United Kingdom (+2)
From €5,000 for C# (C-Sharp) Development
Worked in Retail (+1)
Speaks English
51-200 members
VTS Software Ltd
(0 review)
WE ARE VTS, A BOUTIQUE SOFTWARE ENGINEERING CONSULTANCY FIRM.
VTS Software is an international technology team that plans, designs and enables bespoke software development and highly secure network solutions. We employ some of the brightest minds in the business to build innovative database systems, desktop- and web-applications and secure network systems, which not only meet our clients' every need today, but anticipate and prepare for the challenges of tomorrow. At VTS every project is a truly collaborative effort. We pride ourselves on building rewarding and enduring partnerships with our clients to support their strategic business goals – often offering support and advice way beyond that of our contractual remit. We have an excellent track record for providing mission critical applications and secure network solutions for the healthcare and financial sectors and are experienced at delivering cost-effective core systems for smaller organisations.
7 works in C# (C-Sharp) Development
Located in Greater Manchester, United Kingdom
From €5,000 for C# (C-Sharp) Development
Worked in Pharmaceuticals & Biotech (+6)
Speaks English, Polish
11-50 members
Uptic
5
(1 review)
Modern Full-Stack Software Development & Engineering.
Uptic ontwikkelt, verbetert en moderniseert software en de onderliggende platforms, van User Interface tot Artifical Intelligence. Uptic onderscheidt zich van andere aanbieders met waardevolle kenmerken: - Modulaire keuze om een platform-dienst los of gecombineerd met een development-dienst af te nemen. - Binnen vier maanden een Minimum Viable Product. - Na vier maanden / MVP toch ontevreden? Contractontbinding mogelijk. - Geen gebruik van low-code/no-code tooling zodat lock-in en hoge kosten worden vermeden. - Efficient 'fractioneel' team met alle benodigde rollen. Iedere rol wordt per fase meer of minder gebruikt, kosten per maand blijven gelijk. - Vaste medewerkers van Uptic, geen externe inhuur. Uptic realiseert besparingen op de volgende manieren: - Reduceren van web servers - App servers (VM's) vervangen voor container-platforms. - Van SQL-databases naar PostgreSQL - Van file&block naar object storage - Complexe Disaster Recovery uitfaseren en application native DR inbouwen met een RTO van enkele seconden. - Performance versnelt 5x of nog meer - Behoefte aan IT-infrastructuur daalt naar een tiende De uitkomsten voor de business zijn groot: - Tientallen procenten kostenbesparing na vervanging van legacy applicatie(s). - Return on Investment al na 4 maanden. - Aantoonbare daling in CO2-uitstoot van softwaregebruik. - In plaats van betalen voor gebruik van legacy software wordt de organisatie eigenaar van Intellectual Property. - Belastingvoordelen voor R&D.
Looking for work in C# (C-Sharp) Development
Located in Almere, Netherlands
From €5,000 for C# (C-Sharp) Development
Worked in Entertainment & Events (+1)
Speaks English, Dutch
11-50 members
Concetto Labs
5
(2 reviews)
Microsoft Power Platform And Mobile App Development Company
Concetto Labs is a leading Hybrid app development company in USA, UK, Canada & Australia provides best cross-platform app development services. Hire Hybrid app developer.
Looking for work in C# (C-Sharp) Development
Located in Ahmedabad, India
From €1,000 for C# (C-Sharp) Development
Worked in Retail (+10)
Speaks English
201-500 members
Eastern Peak
(0 review)
Eastern Peak — driving the evolution of your business
Eastern Peak is a global technology partner specializing in custom software and hardware development, as well as digital transformation consulting. For over a decade, we have been helping businesses, from startups to large enterprises, navigate rapidly changing markets and evolving technologies by delivering solutions that are both innovative and practical. Our team of over 300 professionals offers end-to-end services, covering every stage of the development lifecycle. From initial product discovery and strategic planning to UI/UX design, development, testing, deployment, and ongoing support, we ensure every solution meets business objectives, scales efficiently, and delivers a seamless user experience. Eastern Peak helps organizations modernize legacy systems, automate processes, and leverage advanced technologies such as AI, IoT, Cloud, Big Data, AR/VR, and more to deliver smarter, more impactful solutions.
Looking for work in C# (C-Sharp) Development
Located in City of London, United Kingdom (+2)
From €1,000 for C# (C-Sharp) Development
Worked in Education (+1)
Speaks English, Hebrew(+1)
201-500 members
Blott
5
(7 reviews)
The Design & Technology Firm for AI Era
Top awarded
As a global AI consultancy, we specialise in end-to-end transformation for complex, highly regulated industries; including banking, insurance, capital markets, and wealth & asset management. We partner with ambitious leaders to build AI-native products, intelligent interfaces, and agentic systems that act with clarity and purpose.
Looking for work in C# (C-Sharp) Development
Located in Greater London, United Kingdom
From €10,000 for C# (C-Sharp) Development
Worked in Banking & Financials (+3)
Speaks English
11-50 members
MMC Global
4.9
(10 reviews)
Best Software Development Company
Recommended
MMC Global is an award-winning business solutions provider that serves organizations across different industry verticals around the globe. We helps organizations streamline business operations and compete in the global marketplace by focusing on a range of cutting-edge technologies: Artificial Intelligence Solutions Chatbot Development Product Strategy Design UX/UI Mobile application development Web application and website Development Security Consultant, DevOps Data Science Digital Marketing We believe that technical execution should not be a barrier to developing new projects, which is why we work closely with our customers to understand their vision, help them define their product, then design, build and launch it in the most efficient way possible. We have already developed application, mobile application and different solutions for Startups, Small Medium Enterprise (SME) and enterprises, streaming web applications, erp applications, MVPs, business process automation systems, e-commerce sites and many others. For a transformative digital journey, reach out to us at [email protected] to discuss your project!
Looking for work in C# (C-Sharp) Development
Located in Dubai, United Arab Emirates (+2)
From €1,000 for C# (C-Sharp) Development
Worked in Non-profit (+4)
Speaks English, Arabic(+1)
501-1000 members
Plexteq
(0 review)
Trusted partner for guaranteed software engineering excellence, quality and transparency.
Plexteq is a trusted digital consulting and software engineering company that delivers solutions at the cutting edge of technology, with R&D centers in Ukraine, Estonia and UK. Founded in 2014, Plexteq focuses on professional consulting and end-to-end software engineering services primarily in the SaaS domain. Plexteq customers comprise large and well-known companies operating in the hi-tech, healthcare, telecom, e-government, online conferencing, and data recovery industries, where software innovation is most intense. Plexteq offers its clients across the corporate market, high-quality services in software engineering, software architecture, DevOps, quality assurance, business intelligence, and data engineering to build and deliver next-generation products and digital experiences. Key benefits: - Operational costs reduction and productivity increase through Agile processes that follow CMMv3, ISO/IEC 25010:2011, ISO/IEC 27001:2013 - Flawless integration of teams and processes to minimize downtime and speed execution - End-to-end project oversight and management, ensuring issues are identified and managed before they become problems
Looking for work in C# (C-Sharp) Development
Located in Tallinn, Estonia
From €3,000 for C# (C-Sharp) Development
Worked in Energy & Oil (+6)
Speaks English, Estonian(+3)
51-200 members
TechMagic
(0 review)
Your AI-powered partner for digital excellence in Healthcare and Cybersecurity
Top awarded
Welcome to TechMagic - a full-cycle development company with strong Healthtech and Cybersecurity expertise that provides end-to-end software development services to businesses of different sizes. With a proven track record of 200+ successful projects, 11 years on the market, and 400 experts onboard, TechMagic is your trusted product development partner. Our backend skillset includes Node.js, Nest.js, Java, .Net, PHP, and Python. On the frontend side, we work extensively with Next.js, React, React Native, Angular, Vue.js, etc. From the infrastructure perspective, we mainly go for AWS. However, we have projects in the GCP and Azure spaces as well. With a deep understanding of the critical importance of cybersecurity in today's technology-driven world, we also provide specialized security services. Our services: - AI Development - Discovery Phase - UX/UI Design - Web Development - Mobile Development - Cloud Consulting - Test Automation - Cybersecurity - CTO as a Service - Salesforce Development and Integration We deliver software products from concept to deployment or enforce existing ones. By working with TechMagic, you unlock the full potential of technology for your business.
Looking for work in C# (C-Sharp) Development
Located in Lviv, Ukraine
From €3,000 for C# (C-Sharp) Development
Worked in Others (+5)
Speaks English
201-500 members
Inceptives Digital
(0 review)
Your Trusted Software Development Experts for Scalable Growth!
Top awarded
We transform ambitious ideas into powerful digital realities, backed by in-depth industry expertise and a passion for delivering results.
Looking for work in C# (C-Sharp) Development
Located in Austin, United States
From €1,000 for C# (C-Sharp) Development
Worked in Hospitals & Healthcare (+3)
Speaks English
51-200 members

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