All .NET Development Companies in England
Instinctools
5(10 reviews)Your AI-powered Engineering Partner
Top awardedMeet *instinctools - a global AI-powered software engineering company with over 25 years of experience. We help both SMBs and Enterprises build robust, scalable software solutions that excel in functionality and design. Our core services include: Agentic AI enablement Custom software development enhanced by deep AI expertise Digital product engineering Business process automation Legacy system modernization Advanced data analytics and visualization Cloud infrastructure and DevSecOps Headquartered in the USA (Maryland) and Europe (Germany), *instinctools offers convenient locations for meeting and collaborating directly with our clients. We have development centers in Poland, LATAM, India, and Kazakhstan that combine global expertise with a strong price-quality balance to ensure exceptional results across time zones. Our work is backed by ISO-certified quality standards, strategic partnerships with leading tech platform, and a long-standing commitment to engineering excellence. Instinctools holds a broad portfolio of regional and industry-specific certifications, including CIR, HIPAA, and other compliance frameworks required for regulated markets. The 2025 Annual Customer Satisfaction Index is 9.1 out of 10.Looking for work in .NET DevelopmentLocated in London, United Kingdom (+4)From €10,000 for .NET DevelopmentWorked in Construction (+10)Speaks English, German(+1)201-500 membersSigli
5(11 reviews)Software development, Web development, Data Solutions, AI, ML.
Highly recommendedSigli is a forward-thinking software development company specializing in digital product development and digital transformation. Our mission, ‘ Data Science with Purpose, Innovation with Impact ’, drives us to transform innovative ideas into practical solutions. Our services encompass the entire development lifecycle, from initial concept to implementation, ensuring every product we build is high-quality, scalable, and future-proof. Sigli assists businesses in navigating the complexities of digital transformation, modernizing their operations, enhancing customer experiences, and maintaining a competitive edge in the ever-evolving digital landscape. Our team's deep expertise, combined with a commitment to leveraging the latest technologies and best practices, ensures we deliver impactful results for our clients. Our dedication to excellence is further demonstrated by our ISO/IEC 27001 certification, the leading standard for Information Security Management Systems (ISMS). This certification underscores our commitment to maintaining the highest standards of information security, making us a trusted partner for businesses looking to thrive in the digital age.1 work in .NET DevelopmentLocated in London, United Kingdom (+2)From €1,000 for .NET DevelopmentWorked in Hospitals & Healthcare (+12)Speaks English, Dutch(+3)51-200 membersAscendro Technologies
4.8(15 reviews)Growing with Technology
Highly recommendedTop awardedAbout Ascendro Ascendro is a German-Romanian engineering company that builds and runs software-critical systems. Around 45 senior engineers, working from Timisoara and Germany. Most software vendors treat go-live as the finish line: the system is delivered and operating it becomes someone else's problem. We work the other way around. We take end-to-end responsibility for architecture, delivery and production operations - uptime, incidents, deployments, security - and stay accountable for how the platform behaves for years afterwards. This matters most when software becomes business-critical faster than the infrastructure around it matured. A pilot turns into a production service. The internal team knows the domain but was never sized to run a platform 24/7. That is where we are useful. We do not rebuild operations for every client. Our DevOps Foundation is a reusable, cloud-agnostic backbone for CI/CD, monitoring, logging, authentication and backups, already running across multiple live environments. It moves systems into stable production without a client having to hire a platform team - and we can operate it afterwards. Track record BMW DriveNow - the city-scale shared mobility platform; Ariston and Wolf - connected heating and manufacturing-critical environments; Thinksurance - a regulated, high-availability insurance distribution platform; Samsung - release management for large-scale software delivery; Several of these engagements have run for many years. We are certified to ISO 27001 and TISAX, staff senior squads rather than interchangeable headcount, keep 85-90% engineer retention, and give clients direct founder access instead of account managers.Looking for work in .NET DevelopmentLocated in London, United Kingdom (+2)From €1,000 for .NET DevelopmentWorked in Automotive (+18)Speaks English, French(+2)11-50 membersU1CORE
4.9(18 reviews)PARTNER IN CRIME FOR STRONG BUSINESSES. Websites · Branding · Software
Highly recommendedTop awardedWebsites · Branding · Software Website: https://www.u1core.com/ Book a call: https://calendly.com/hello-u1core/30min Most companies outgrow their digital before they notice. The business is strong, the team is good, the product works. But the website is still the first version, operations still live in spreadsheets, and the brand says nothing a competitor couldn't say. That's where we come in. WHAT WE DO · Websites — marketing sites, landing pages and platforms that sell before your team has to · Branding — identity and design systems that position you at the level you actually operate at · Software — web and mobile products, internal tools and operational systems that replace manual work WHY ONE TEAM Brand agencies do brand. Product studios do product. Outsourcing firms write code. The real problems sit between those disciplines — which is why we do all of it, under one contract, with one person accountable for the result. WHO WE WORK WITH Companies with real revenue and a team in place: founders and owners scaling past their first system, operators rebuilding for growth, and businesses entering a new market. WHERE WE'VE PROVEN IT $720M+ processed through a platform we built. Classified marketplaces with millions of listings. Trading exchanges and auction systems running in production. SaaS, fintech and marketplace products across 40+ projects. HOW WE START With a diagnostic, not a proposal. We look at your website, brand and operations, show where you lose trust, traffic and time — and what to fix first. LET'S TALK IF your business is strong but your website, brand or operations don't play at the same level yet.Looking for work in .NET DevelopmentLocated in London, United KingdomFrom €5,000 for .NET DevelopmentWorked in E-commerce (+19)Speaks English11-50 membersDebut Infotech
5(9 reviews)AI-Augmented Product Engineering Company
Highly recommendedDebut Infotech is an AI-augmented blockchain and software development company helping organizations across financial services, healthcare, supply chain, and digital platforms build systems that perform reliably in complex, regulated environments. Founded in 2011 and blockchain-native since 2015, the company brings engineering discipline and technology depth to enterprises moving from fragmented pilots to production-grade systems. With delivery centers across the USA, UK, Canada, and India, Debut Infotech combines regional market understanding with globally distributed engineering capability — enabling clients to move with speed, consistency, and governance. Service areas: Artificial intelligence and generative AI — Enterprise LLM integration, AI agent development, retrieval-augmented generation (RAG) pipelines, predictive analytics, computer vision, and intelligent process automation embedded at the system architecture level. Blockchain and Web3 development — Smart contract engineering, DeFi protocol development, real world asset (RWA) tokenization, cryptocurrency exchange infrastructure, and enterprise blockchain on Hyperledger Fabric and Corda. Mobile application development — Native iOS, Android, and cross-platform applications (React Native, Flutter) architected for AI integration, enterprise-grade security, and sustained performance under production load. Web and software development — Full-stack web platforms, SaaS products, and enterprise software systems engineered API-first, designed for long-term maintainability and organizational scale Proven Delivery: $62M+ raised across client platforms including Ifinca, IntegraLedger, Everledger, and TĒM 90% customer success score across enterprise engagements 15 years of enterprise software delivery Fortune 500 clients and high-growth startups across 25+ industry verticals 50–249 engineers spanning AI, blockchain, and software disciplinesLooking for work in .NET DevelopmentLocated in Yarnton, United Kingdom (+2)From €10,000 for .NET DevelopmentWorked in Others (+11)Speaks English51-200 membersBullshark
4.7(14 reviews)We build the end-to-end; Marketing, Technical and operational infrastructure organisations run on.
Most companies do not have a technology problem. They have a systems problem. Organisations accumulate tools. A CRM here. Analytics there. Finance systems, operational software, marketing platforms. Each solves a problem. Together they create complexity. Data fragments. Reporting slows. Revenue leaks. Bullshark is a technology company that designs, builds, integrates, and operates the systems organisations need to scale. Software, cloud, data, AI, operations, digital platforms, and revenue connected into one operating environment. That is end-to-end business infrastructure. WHAT WE BUILD Strategy and Design. Transformation strategy, AI adoption, operational optimisation, systems architecture, brand and positioning. Technology and Infrastructure. Custom software engineering, enterprise applications, B2B sales infrastructure, legacy modernisation, DevOps and cloud, systems integration. Data and AI. Data architecture and engineering, migration, business intelligence, AI automation, machine learning. Digital Platforms. Web and mobile applications, SaaS products, e-commerce, websites, UX and UI design. Revenue Growth. Outsourced Marketing Department, performance marketing, content, CRM, marketing automation, revenue intelligence. PROOF 200+ organisations supported EUR 100M+ in client revenue powered by Bullshark systems 150+ platforms and systems delivered 75M+ user sessions handled annually 30+ systems integrated across ERP, CRM, and finance 95% client retention, 2023 to 2025 26.3X ROAS through search-led acquisition 40% revenue recovered through automated billing ISO 9001 and ISO 27001 certified Trusted by Wolt, Hyatt, Pfizer, Melita, APS Bank, Marriott, Farsons, Transport Malta, and the Government of Malta. Headquartered in Malta. Office in London. Clients across Europe, the UK, MENA, and North America. Tell us what is breaking. We will map the system behind it. Bullshark.DigitalLooking for work in .NET DevelopmentLocated in Saint Albans, United Kingdom (+1)From €1,000 for .NET DevelopmentWorked in Industrial Goods & Services (+5)Speaks English, Italian(+1)11-50 membersUASOFTDEV
5(3 reviews)Founder-led staff augmentation of AI-Ready Senior Developers and Dedicated Teams in 60 hours
UASOFTDEV is a founder-led staff augmentation of AI-Ready Dedicated Teams and Senior Software Engineers for small-mid companies. We believe AI doesn't replace experienced engineers. It makes the right engineers dramatically more effective. That's why every developer we provide uses AI as part of their daily workflow with tools like Claude, Cursor and GitHub Copilot, while all architecture, technical decisions, code reviews and production releases remain under experienced human ownership. Main engagement models. Staff Augmentation for companies looking to extend their existing engineering team with senior talent, and AI-Ready Dedicated Teams for businesses that need a complete delivery team with technical leadership capable of owning products, features or entire engineering initiatives. Every engagement is led directly by our Founders. Aleksey, CEO, works closely with clients to understand product goals, business priorities and team dynamics. Oleksandr, CTO, personally evaluates every engineer for technical excellence, communication and problem-solving skills. Our work is built around four core values: quality, clarity, transparency and a personalized approach to every client engagement. The process is simple: after a discovery call, we match engineers to your technology stack, product domain and culture, present a CTO-vetted shortlist and run contracting alongside onboarding. Staffing typically happens within 60 hours. Today, our teams support startups and product companies across Europe, UK and North America. UASOFTDEV's track record includes a 97% first-candidate acceptance rate, a 95.65% first-match success rate and an average client engagement of over 13 months. Founders respond to critical issues within two working hours. Whether you need one senior engineer or an AI-Ready Dedicated Team, our goal is the same: help you ship faster with engineers who communicate clearly, contribute from day one and solve complex problems independently.Looking for work in .NET DevelopmentLocated in London, United Kingdom (+4)From €3,000 for .NET DevelopmentWorked in Hospitals & Healthcare (+3)Speaks English11-50 membersTRIARE
4.9(11 reviews)TRIARE unlocks IT potential of YOUR business
TRIARE is a WEB and MOBILE software development company based in Europe. We are delighted to offer our services as your long-term partner, taking all technical matters off your shoulders and allowing you to focus on your business development. YOU WILL GET: ✔ In-house team . Work with a dedicated team that is 100% focused on your product and located in the same office. ✔ Efficiency & transparency , as our process is based on Scrum methodology and managed by certified Scrum Masters. ✔ Fast result. Working with us, you will get the first result in 1 week. ✔ High quality, as TRIARE has well-established processes of software development and experienced specialists. ✔ Full cycle development . Our company covers all stages of development, handling everything from Discovery and prototyping to Design, development, and maintenance. ✔ IP rights . From the very beginning, you are the only owner of the intellectual property of your project materials: source code, design, documentation, etc. ✔ Warranty period will be provided for your system for free. ASPECTS OF OUR MINDSET: - Focused on results. We are focused on the result of your business with an understanding of the real goals and KPIs that our team should achieve. - Solution Provider. It means that we always come to you with solutions, not with questions. We take all technical aspects of the project off your shoulders, allowing you to focus on the marketing and business strategies. - We go the extra mile. Being a proactive company, we always think and take a step ahead. TECHNOLOGIES WE USE: - Mobile app development: Kotlin, Java, Swift, Objective-C. - Cross-platform development: Flutter, React Native. - Web frameworks: Node.JS, React.JS, PHP, Ruby on Rails.Looking for work in .NET DevelopmentLocated in Greater London, United Kingdom (+3)From €5,000 for .NET DevelopmentWorked in Others (+20)Speaks English, Ukrainian51-200 membersMagora
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 .NET DevelopmentLocated in London, United KingdomFrom €5,000 for .NET DevelopmentWorked in Entertainment & Events (+9)Speaks English11-50 membersEchoGlobal
5(2 reviews)★ Hire Top Remote Software Developers
Top awarded☂ ISO 27001 Certified Tech Talent Provider | ⚑ Eastern Europe & LATAM | ◉ Trusted by Fortune 500 Companies | ✔ 10+ Years of Experience | ✱ 1-Week Risk-Free TrialLooking for work in .NET DevelopmentLocated in Greater London, United Kingdom (+4)From €10,000 for .NET DevelopmentWorked in Construction (+8)Speaks English, Estonian(+3)11-50 membersTimspark
5(3 reviews)Software development, engineering teams, AI/ML, data, cloud, and DevOps.
Top awardedTimspark is a software development company helping startups, SMBs, and enterprises build, scale, and modernize digital products and technology platforms. We provide custom software development, team augmentation, and dedicated engineering teams across web and mobile development, AI/ML, data engineering, cloud and DevOps, QA automation, and Salesforce. Our teams can integrate with an existing engineering organization or take responsibility for full-cycle product delivery, from discovery and architecture to development, testing, deployment, and ongoing support. Our experience includes microlearning and EdTech platforms, cybersecurity and vulnerability analytics, industrial IoT and real-time data processing, AI-powered point cloud and Scan-to-BIM solutions, pharmaceutical data platforms, and scalable web and mobile applications. Whether a client needs senior specialists to strengthen an existing team, a dedicated cross-functional engineering team, or end-to-end software development, Timspark provides the technical expertise and delivery flexibility to move projects forward efficiently. Services: Custom Software Development • Team Augmentation • Dedicated Engineering Teams • Web & Mobile Development • AI/ML & Data Engineering • Cloud & DevOps • Salesforce • QA & Test AutomationLooking for work in .NET DevelopmentLocated in London, United Kingdom (+1)From €3,000 for .NET DevelopmentWorked in Media (+15)Speaks English, Armenian(+6)51-200 membersFulminous Software
5(38 reviews)WE LOVE TO BUILD ASK FOR IT AND HAVE IT
Top awardedWe are Fulminous Software, a skilled web and mobile app development company with a proven history of creating popular and profitable apps. We're known for our knack for enhancing existing apps and websites to make them even better, ensuring people keep downloading and enjoying them. Our dedicated team is here to turn your ideas into reality. The company’s biggest strength is its team which I a mix of most ingenious and focused individuals who are adroit in whatever they do. They believe in delivering flawless and reliable solutions to clients that match business needs and drive business growth. We are looking for strategic partnerships from around the globe. If you are interested please contact us today. Client's Feedback About US: https://clutch.co/profile/fulminous-software-private#highlights https://www.bark.com/en/in/company/fulminous-software-private-limited/9AKJO/ Our Key services: * Custom Software development * Mobile App Development (Android App, iPhone App, Cross-Platform App) * Custom Game Development (AR, VR, iOS, Android, NFT, Metaverse, 2D, 3D) * Salesforce Development (Lightning, Implementation, Consulting) * Web Development * Mobile Game Development * Desktop Game Development * Xamarin App Development * Wearable Devices App Development * Enterprise App Development * CRM & ERP Development * Digital MarketingLooking for work in .NET DevelopmentLocated in London, United Kingdom (+2)From €1,000 for .NET DevelopmentWorked in Video games (+9)Speaks English51-200 membersSENLA | Software Engineering Laboratory
5(2 reviews)Scale your engineering teams with SENLA
Top awardedSENLA is a leading Talent Augmentation provider in Europe, offering access to over 700 highly skilled tech professionals . Trusted by global leaders such as BOSCH, IKEA, Bayer, and Deloitte, we specialize in enhancing tech teams with top-tier engineers, architects, and data scientists. Our proven talent system guarantees 95% client satisfaction and a 94% staff retention rate . With flexible options including individual experts, dedicated teams, or development centers, we can launch new teams in as little as 10 days . Since 2012, we’ve delivered over 350 successful projects across a wide range of industries. Our approach focuses on: Rapid access to pre-vetted tech talent; Building tailored teams that fit your unique requirements; Effortless integration with your workflows; Reliable ongoing support and quality assurance. Ready to transform your tech capabilities? Partner with SENLA and discover the unmatched value of expert Talent Augmentation.Looking for work in .NET DevelopmentLocated in Greater London, United Kingdom (+1)From €10,000 for .NET DevelopmentWorked in Software & Computer Services (+16)Speaks English, German(+1)501-1000 membersELEKS
5(1 review)Your trusted partner for guaranteed software delivery
Top awardedELEKS is your trusted partner for guaranteed software delivery. Combining over 30 years of industry insight with cutting-edge AI technology, we help businesses worldwide deliver their unique software vision through bespoke full-cycle solutions.Looking for work in .NET DevelopmentLocated in Greater London, United Kingdom (+14)From €20,000 for .NET DevelopmentWorked in Energy & Oil (+10)Speaks English, German(+1)1001-5000 membersFuturByte
5(15 reviews)Anything is Possible!
Top awardedFuturByte is a custom software and app development company that builds high-performance digital solutions. We develop apps, websites, and web apps designed to solve real business challenges. With a team of skilled developers and over ten years of experience, we specialize in iOS, Android, and cross-platform apps that are scalable, user-friendly, and built for growth. We serve industries like real estate, healthcare, retail, fintech, education, logistics, transportation, hospitality, entertainment, media, and manufacturing, providing custom apps, websites, and digital solutions for businesses of all sizes. With a skilled team and over a decade of experience, we specialize in iOS, Android, and cross-platform mobile app development. Our solutions are built for speed, security, and long-term scalability. Our Expertise ✔️ Ideation & Product Design – From concept to reality. ✔️ Mobile App Development – iOS, Android, and cross-platform apps. ✔️ Software Development – Business solutions tailored to your needs. ✔️ Digital Transformation – Modernizing businesses with technology. ✔️ Data Science & Analytics – Data-driven decision-making. ✔️ Cloud & DevOps – Scalable infrastructure for efficiency. ✔️ Blockchain – Secure and advanced digital solutions. We help businesses grow with the latest technologies while focusing on quality, efficiency, and long-term success. If you're looking for a reliable technology partner, FuturByte is ready to deliver.Looking for work in .NET DevelopmentLocated in Greater London, United Kingdom (+3)From €1,000 for .NET DevelopmentWorked in Banking & Financials (+9)Speaks English, Arabic201-500 membersInfinity Technologies
4.8(2 reviews)Ask us how to turn your R&D into ROI
Infinity Technologies brings together AI experts, scientists, software engineers and machine learning specialists to help enterprises become AI-agentic companies. We build AI agents and AI-native software, from LLM and RAG features to predictive intelligence, that automate everyday decisions. Everything we ship is secure by design (ISO 27001 certified) and built around human needs.Looking for work in .NET DevelopmentLocated in Greater London, United KingdomFrom €3,000 for .NET DevelopmentWorked in Others (+10)Speaks English201-500 membersTulipTech Ltd
5(2 reviews)Software Development Company in Leicester
RecommendedTulipTech is a Leicester-based software development company dedicated to delivering high-quality, innovative digital solutions for businesses of all sizes. We combine technical expertise, creativity, and strategic thinking to build powerful applications that drive efficiency and growth. From custom software development and mobile app design to cloud solutions and AI-powered automation, TulipTech helps businesses transform ideas into impactful digital products. Our team of skilled developers and engineers work closely with clients to ensure every solution is tailored, scalable, and future-ready. At TulipTech, we don’t just write code — we create technology that helps businesses bloom in the digital world. Services: Custom Software Development Web & Mobile App Development Cloud & DevOps Solutions AI & Machine Learning Integration IT Consulting & Support Why Choose Us: ✅ Leicester-based team of experts ✅ Transparent communication & agile process ✅ Scalable, secure, and innovative solutionsLooking for work in .NET DevelopmentLocated in Leicester, United Kingdom (+2)From €10,000 for .NET DevelopmentWorked in Software & Computer ServicesSpeaks English51-200 membersepicX
5(4 reviews)Scale your Tech Teams with Pre-Vetted and Battle-Tested Talent and Avail Upto 65% Cost Savings
RecommendedepicX is a leading provider of tech talent, staff augmentation, and offshore software development services, empowering startups to scale with speed, efficiency, and confidence. Founded in 2021, epicX was built by founders, for founders - with a mission to simplify the way early-stage and growth-stage companies access world-class engineering talent without the complexity of traditional hiring. At epicX, we connect you with top 5% pre-vetted developers from Pakistan and South Africa, two emerging hubs of skilled, cost-effective tech talent. Our engineers are carefully handpicked for their technical excellence, startup experience, and ability to deliver results fast. Whether you need to hire one exceptional developer or assemble a fully dedicated remote team, epicX offers a flexible, scalable solution designed to integrate seamlessly into your workflow. We specialize in staff augmentation and dedicated remote teams, working closely with non-technical founders, solo product owners, and lean startup teams to fill talent gaps, accelerate development, and reduce overhead costs. Our developers become true extensions of your team - not freelancers or vendors - but trusted partners who take ownership, communicate proactively, and align with your goals.Looking for work in .NET DevelopmentLocated in London, United KingdomFrom €5,000 for .NET DevelopmentWorked in Marketing & Advertising (+2)Speaks English201-500 membersNetMonkeys Ltd
5(1 review)Helping your business perform at its best every day
We're NetMonkeys, a boutique Managed Service Provider with offices in Manchester, London and Nottingham. With over 15 years of experience, we specialise in delivering tailored IT managed services, bespoke software solutions ERP solutions, and cutting-edge AV systems, including AI services to businesses across the UK As a trusted IT partner to businesses across sectors like manufacturing, retail, e-commerce, and professional services, we pride ourselves on our personalised approach and commitment to innovation. Our team of experts ensures seamless IT support, robust cybersecurity, and transformative tech solutions that empower our clients to grow their businesses. We're also proud members and official AI partners of the East Midlands Chamber of Commerce. At NetMonkeys, we’re more than a service provider – we’re your strategic technology partner.Looking for work in .NET DevelopmentLocated in London, United Kingdom (+2)From €1,000 for .NET DevelopmentWorked in Clothing & Accessories (+7)Speaks English11-50 membersDigitilizeweb
5(18 reviews)Make Things Happen
Digitilize Web is a leading Web Design Studio in UK offering Web Design, UI / UX, Logo Design, Branding, Web Development, Ecommerce & Marketplace, Mobile App Development.Looking for work in .NET DevelopmentLocated in Greater Manchester, United KingdomFrom €250 for .NET DevelopmentWorked in Accounting (+16)Speaks English11-50 members