Top ASP.NET Application Development Companies in the UK - banner

Top ASP.NET Application Development Companies in the UK

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    Targets we’ve achieved:
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    Increased US Software Development Company's annually acquired clients by 400% *
    Generated 50+ business opportunities for UK Architecture & Design Services Provider *
    Reduced cost per lead by over 6X for Dutch Event Technology Company *
    Reached out to 13,000 target prospects and generated 400 opportunities for Swiss Sports Tech Provider *
    Boosted conversion rate of Ukrainian IT Company by 53.6% *
    AI Summary
    Max Mykal
    Co-Founder @ Lengreo

      Looking for the best ASP.NET development companies in the UK? Choosing the right partner can make all the difference when building scalable, reliable, and high-performing web applications. The top UK companies not only write clean, efficient code-they understand your business goals, users, and the kind of online experience that truly matters.

      1. LenGreo

      1. LenGreo

      We work with businesses to navigate the digital landscape, focusing on creating strategies that fit each client’s unique needs. Our approach combines different aspects of digital marketing, from SEO and social media to paid advertising and demand generation. By integrating into client teams, we aim to maintain smooth communication and ensure our work aligns with ongoing business goals. Our team provides scalable ASP.NET development services in Central Europe and the UK.

       

      Key Highlights:

      • Focus on tailored digital marketing strategies
      • Integration into client teams for closer collaboration
      • Emphasis on lead generation and appointment setting
      • Open and transparent communication
      • Possibility of in-person meetings in Central Europe

       

      Services:

      • B2B digital marketing strategy and consulting
      • Lead generation and appointment setting
      • Search engine optimization (SEO)
      • Social media and content marketing
      • Paid advertisement services
      • Demand generation
      • Website development services

       

      Contact and Social Media Information:

      • clutch logo
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      Our cases
      Creator Subscription Platform
      Creator Subscription Platform
      B2B Directory Platform
      B2B Directory Platform
      CUSTOM LOGISTICS PLATFORM
      CUSTOM LOGISTICS PLATFORM
      Hyperl1ne

      2. Hyperl1ne

      HyperL1ne is a one-stop development partner that combines business analysis, technical expertise, and a straightforward approach to help businesses build digital products that deliver real value. Rather than focusing solely on development, their team starts by understanding business objectives, ensuring that every decision contributes to measurable outcomes and long-term success.

      With transparent collaboration and a team of experienced specialists, HyperL1ne supports companies throughout the entire product journey – from validating ideas and defining requirements to development, optimization, and ongoing support.

      Depending on where a business is in its journey, HyperL1ne provides tailored expertise to help move it forward. Whether it’s a startup bringing a new product to life, an established company refining an existing solution, or a growing business looking to optimize processes and scale efficiently, their team adapts to the unique challenges of each stage.

      • Their core services include:
      • Product Discovery & Validation
      • Business Analysis
      • Technical Consulting
      • UX/UI Design
      • Web Development
      • Mobile App Development
      • Custom Software Development
      • E-commerce Development
      • Progressive Web App (PWA) Development
      • Quality Assurance (QA)
      • Ongoing Development Support & Optimization
      Sollarix

      3. Sollarix

      Sollarix is a full-cycle digital agency that brings strategy, development, and marketing together under one roof to help businesses build digital products that grow. Instead of treating design, development, and SEO as separate projects handled by scattered vendors, their team works within a single connected system – so every website, app, or platform is built with performance, visibility, and long-term growth in mind from day one.

      With over 15 years of experience and 100+ SEO projects delivered across 11+ industries, Sollarix guides companies through every stage of their digital journey – from product discovery and business analysis to development, launch, and continuous optimization. Their process follows three clear phases: Discover, Build, and Grow.

      Sollarix works with startups launching their first product, SMEs modernizing outdated platforms, and established businesses looking to scale. Their team has hands-on experience with B2B companies, e-commerce brands, and SaaS products, as well as fintech, healthcare, education, logistics, and legal businesses.

      • Their core services include:
      • Product Discovery & Business Analysis
      • Technical Consulting
      • UX/UI Design
      • Web Development
      • Mobile App Development
      • Custom Software Development
      • E-commerce Development
      • Progressive Web App (PWA) Development
      • AI Tools & Automation
      • CRM & Internal Tools
      • SEO, AI SEO & GEO
      • Quality Assurance (QA) & Ongoing Support
      2. 200OK

      4. 200OK

      200OK Solutions started with Microsoft SharePoint and has grown into a full-stack development company, handling web, mobile, DevOps, and support services. They split their operations between London and India, giving them both local contact and global technical expertise. Their .NET solutions are flexible enough for custom apps or full-scale digital transformations.

       

      Key Highlights:

      • Established in 2011
      • Expertise in Microsoft SharePoint and .NET solutions
      • Global presence with offices in the UK and India

       

      Services:

      • Web and mobile development
      • Full-stack application development
      • Application maintenance and support
      • DevOps services
      • Dedicated Team support

       

      Contact Information:

      • Website: 200oksolutions.com
      • E-mail: [email protected]
      • Facebook: www.facebook.com/people/200OK-Solutions
      • Twitter: x.com/200ok_Solutions
      • LinkedIn: www.linkedin.com/company/200ok-solutions
      • Instagram: www.instagram.com/200ok_solutions
      • Address: 63/66 Hatton Garden, Fifth Floor, Suite 23 London, EC1N 8LE
      • Phone: +44 20 3372 4627
      3. Ranosys

      5. Ranosys

      Ranosys works on eCommerce, product engineering, and digital transformation. They partner with platforms like Salesforce, Adobe, Shopify Plus, and Microsoft to build .NET apps. Their team has offices around the world-including the UK, Singapore, and the US-so they can scale solutions for almost any market.

       

      Key Highlights:

      • Global presence with offices in Singapore, UK, USA, and Middle East
      • Focus on ASP.NET development and digital consulting
      • Partnerships with major technology platforms
      • Transparent work methodologies

       

      Services:

      • ASP.NET web and app development
      • Digital transformation support
      • eCommerce and product engineering solutions
      • Project management and technical consulting

       

      Contact Information:

      • Website: www.ranosys.com
      • E-mail: [email protected]
      • Facebook: www.facebook.com/ranosys
      • Twitter: x.com/ranosys
      • LinkedIn: www.linkedin.com/company/ranosys
      • Instagram: www.instagram.com/ranosys
      • Address: 318 Feltham Hill Road, Ashford, Surrey, UK, TW15 1LW
      • Phone: +44 20 8144 8551
      4. Space Stem

      6. Space Stem

      Space Stem is all about modernizing businesses with software. They use Microsoft tech, including ASP.NET, to build flexible apps and solve tricky IT problems. Their team is mainly based in India, but they work with clients worldwide. They blend tech skills with industry know-how, making complex projects more manageable.

       

      Key Highlights:

      • Team focused on problem-solving and innovation
      • Nearly a decade of ASP.NET development experience
      • Expertise in Microsoft technologies
      • Customized solutions for complex IT challenges

       

      Services:

      • ASP.NET web application development
      • Custom software solutions
      • IT consulting and problem-solving
      • Application maintenance and optimization

       

      Contact Information:

      • Website: www.spacestem.com
      • E-mail: [email protected]
      • Facebook: www.facebook.com/spacestemit
      • Twitter: x.com/spacestem
      • LinkedIn: in.linkedin.com/company/spacestem
      • Instagram: www.instagram.com/spacestem.it
      • Address: 9, Little Portland Street, London, W1W 7JF, United Kingdom.
      • Phone: +44 1509357224
      5. iQlance

      7. iQlance

      iQlance works on various software projects, including ASP.NET apps. They focus on understanding your needs and delivering solutions that actually fit your business. From design to testing to ongoing support, they’re hands-on at every stage.

       

      Key Highlights:

      • Development of scalable software solutions
      • Focus on aligning technology with business goals
      • Support for multiple stages of software development
      • Emphasis on collaboration and adaptability

       

      Services:

      • ASP.NET application development
      • Web and mobile application development
      • Software maintenance and support
      • Custom software solutions

       

      Contact Information:

      • Website: www.iqlance.com
      • E-mail: [email protected]
      • Facebook: www.facebook.com/iQlance
      • Twitter: x.com/iqlance
      • LinkedIn: www.linkedin.com/company/iqlance-solutions
      • Instagram: www.instagram.com/iQlance
      • Address: 17250 Dallas Pkwy Dallas, Tx 75248, USA
      • Phone: +1 469 793 98 37
      6. GoodCore

      8. GoodCore

      GoodCore has been providing software development services since 2005, with a focus on helping businesses implement technology solutions that are operationally and strategically effective. They work on business-critical systems and develop applications that support ongoing business growth and efficiency. They also develop ASP.NET apps.

      Their approach combines technical expertise with process-driven development. GoodCore works with clients to deliver solutions that are flexible and scalable, adapting to evolving business needs while addressing complex software challenges.

       

      Key Highlights:

      • Established in 2005
      • Focus on business-critical software
      • Combines engineering expertise with process-driven development
      • Supports scalable and adaptable solutions

       

      Services:

      • ASP.NET application development
      • Business-critical software solutions
      • Web and mobile application development
      • Software maintenance and ongoing support

       

      Contact Information:

      • Website: www.goodcore.co.uk
      • E-mail: [email protected]
      • Facebook: www.facebook.com/goodcoresoftware
      • LinkedIn: www.linkedin.com/company/goodcore-software
      • Address: Airport House, Purley Way, Croydon CR0 0XZ
      • Phone: 020 8781 6903
      7. Devstree IT Solutions Limited UK

      9. Devstree IT Solutions Limited UK

      Devstree provides IT services including AR/VR, mobile, and ASP.NET apps development. They’re headquartered in India but now have a UK office, which makes communication and local support easier. Their approach is practical, with no cutting corners.

       

      Key Highlights:

      • Founded in 2013
      • UK office established in 2024
      • Expertise in AR/VR, game, and mobile app development
      • Teams across India and the UK

       

      Services:

      • Mobile application development
      • AR/VR development
      • Game development
      • IT consulting and support

       

      Contact Information:

      • Website: www.devstree.uk
      • E-mail: [email protected]
      • Facebook: www.facebook.com/devstreeitsolutionsuk
      • Twitter: x.com/DevstreeUK
      • LinkedIn: www.linkedin.com/company/devstreeuk
      • Instagram: www.instagram.com/devstree.uk
      • Address: 8, Overing Close, Leicester LE47QS, UK
      • Phone: +44 7404 650992
      8. Hidden Brains

      10. Hidden Brains

      Hidden Brains is a global company building web and mobile apps, including ASP.NET.

      They combine technical skills with business strategy, focusing on practical solutions that fit industry needs. Their culture encourages creativity and problem-solving.

       

      Key Highlights:

      • Global presence in web and mobile development
      • Encourages innovative and creative solutions
      • Focus on industry-specific approaches
      • Combines business strategy with technical execution

       

      Services:

      • Web application development
      • Mobile application development
      • Custom software solutions
      • IT consulting and strategy

       

      Contact Information:

      • Website: www.hiddenbrains.co.uk
      • E-mail: [email protected]
      • Facebook: www.facebook.com/HiddenBrains
      • Twitter: x.com/HiddenBrains
      • LinkedIn: www.linkedin.com/company/hiddenbrains-infotech-pvt-ltd
      • Address: Unit P Hunting Gate, East Portway, Andover, Hampshire, SP10 3ER, UK
      • Phone: +44 (0)20-7993-2188
      9. Ezulix

      11. Ezulix

      Ezulix operates as a software development company in the UK, focusing on automating business processes and delivering AI-driven solutions. They provide custom software designs and work to reduce operational workload through business intelligence tools and smart automation systems. They also develop ASP.NET apps. 

      Their teams collaborate closely with clients to understand business challenges and deliver practical, tailored solutions. They focus on improving efficiency and streamlining processes while developing applications that fit each organization’s needs.

       

      Key Highlights:

      • UK-based software development company
      • Offers AI-driven business intelligence solutions
      • Provides custom software design for different industries
      • Focus on reducing operational workload

       

      Services:

      • Custom software development
      • Business process automation
      • AI and business intelligence solutions
      • Web and mobile application development

       

      Contact Information:

      • Website: ezulix.co.uk
      • E-mail: [email protected]
      • Facebook: www.facebook.com/ezulixsoftware
      • Twitter: x.com/ezulix_software
      • LinkedIn: www.linkedin.com/company/ezulix-software-private-limited
      • Instagram: www.instagram.com/ezulix
      • Address: 71-75 Shelton St, London WC2H 9JQ, United Kingdom
      • Phone: +44 7956982975
      10. FastFWD

      12. FastFWD

      FastFWD is all about collaboration and clear processes. Their teams value communication, experimentation, and quality, making sure every project meets client expectations. They emphasize teamwork and knowledge sharing to deliver practical solutions. Develop ASP.NET applications and others.

       

      Key Highlights:

      • Values teamwork and collaboration
      • Structured processes for project development
      • Emphasis on experimentation and quality
      • Focus on aligning goals with client needs

       

      Services:

      • Software development
      • Project strategy and consulting
      • Web and mobile applications
      • Quality assurance and testing

       

      Contact Information:

      • Website: www.fastfwd.com
      • E-mail: [email protected]
      • Address: Falcon Works House, 40 Regent Place, Birmingham, B1 3NN, United Kingdom
      • Phone: +44 121 236 8007

      Conclusion

      ASP.NET is still a solid choice if you want reliable, adaptable software. The key is finding a team that actually understands your goals. Across the UK, developers focus on collaboration, clear communication, and solving real-world problems. It’s not about picking the “best” company on paper-it’s about finding the right fit for your project and long-term plans.

      AI Summary