Best SaaS Application Development Companies in the UK for Custom Solutions

3 min
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% *
Max Mykal
Co-Founder @ Lengreo

    Introduction

    The UK hosts a growing number of SaaS application development companies that help businesses build scalable, cloud-based software tailored to their unique needs. These companies focus on delivering secure, efficient, and user-friendly SaaS platforms designed to enhance business operations and customer engagement.

    1. LenGreo

    1. LenGreo

    We support SaaS companies in the UK by providing digital marketing and front-end website development services that align with their business goals. Our team works with clients to build modern, user-focused web platforms that enhance their digital presence. We integrate into our clients’ teams, helping to lead both design and implementation of front-end solutions tailored for usability and performance.

    While our primary services focus on digital marketing strategy, lead generation, and demand creation, we also offer front-end development as part of our broader support. Our website development services are aimed at ensuring businesses can operate with clear, functional, and scalable web interfaces suited for SaaS applications.

     

    Key Highlights:

    • Website development for SaaS businesses
    • Integration into client teams for project alignment
    • Focus on usability and client-specific strategy
    • Support for lead generation and user engagement

     

    Services:

    • Website development
    • Front-end design and implementation
    • B2B digital marketing consulting
    • Lead generation and appointment setting
    • SEO and content strategy
    • Paid advertising and demand generation

     

    Contact and Social Media Information:

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    Our cases
    SEO for BIM & VDC Services Provider
    SEO for BIM & VDC Services Provider
    PPC For Adult Content Platform
    PPC For Adult Content Platform
    Biological Age Blood Testing Kit
    Biological Age Blood Testing Kit
    2. Vention

    2. Vention

    Vention is a UK-based software development company that collaborates with businesses of various sizes to build custom digital solutions. Their team offers software engineering and front-end development services to companies ranging from early-stage startups to larger enterprises. They focus on delivering tailored support aligned with each client’s needs, contributing to long-term product development goals.

    Their developers integrate into existing teams or lead entire builds, working on modern applications using current frameworks and technologies. The company emphasizes working in close collaboration with product teams to deliver scalable and maintainable front-end interfaces suited to business objectives.

     

    Key Highlights:

    • Offers front-end development as part of broader software engineering services
    • Works with both startups and established companies
    • Provides long-term development support
    • Adapts to client workflows and team structures

     

    Services:

    • Custom SaaS application development
    • Front-end development
    • Web and mobile app development
    • AI and machine learning integration
    • Dedicated development teams

     

    Contact Information:

    • Website: ventionteams.com
    • E-mail: hello@ventionteams.com
    • Twitter: x.com/ventionteams
    • LinkedIn: www.linkedin.com/company/ventionteams
    • Instagram: www.instagram.com/ventionteams
    • Address: London 30 Churchill Place, E14 5RE
    • Phone: +442071172842

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      3. Scorchsoft

      3. Scorchsoft

      Scorchsoft develops web and mobile applications for companies looking to implement digital tools and processes. They focus on helping clients across different industries leverage technology to improve workflows, launch digital products, and gather or manage data. Their work includes the front-end development of user interfaces and platforms that align with business goals.

      They support clients from initial planning through to deployment and maintenance, emphasizing iterative development and collaboration. Their process covers both the technical and strategic elements of delivering a digital project, ensuring the solution aligns with the company’s operational needs.

       

      Key Highlights:

      • Supports businesses with non-technical backgrounds
      • Handles full-cycle development from concept to maintenance
      • Offers experience in web and mobile app development
      • Delivers both internal tools and customer-facing platforms

       

      Services:

      • SaaS application development
      • Front-end and UI development
      • Mobile and web app development
      • Digital product strategy and consulting
      • Automation and data collection solutions

       

      Contact Information:

      • Website: www.scorchsoft.com
      • E-mail:  info@scorchsoft.com
      • Facebook: www.facebook.com/scorchsoft
      • Twitter: x.com/scorchsoft
      • Address: 13 Portland Road, Edgbaston, Birmingham, B16 9HN Phone: +44(0) 121 7240447
      4. GoodCore

      4. GoodCore

      GoodCore is a software development company that partners with startups and growing businesses to deliver custom-built applications. Their services include front-end development, focusing on creating responsive, intuitive user interfaces for SaaS products and internal business tools. The company aims to offer strategic and practical support to clients without overcomplicating the process.

      They work in close collaboration with clients throughout the project lifecycle, maintaining transparency and focusing on building long-term working relationships. Their development process is designed to align with business goals while adapting to technical and operational challenges.

       

      Key Highlights:

      • Offers front-end development as part of custom software builds
      • Works with early-stage and scaling businesses
      • Focuses on transparency and collaboration
      • Prioritizes usability and maintainability

       

      Services:

      • SaaS and web application development
      • Front-end interface development
      • Custom business software solutions
      • Project scoping and technical planning
      • UI/UX design

       

      Contact Information:

      • Website: www.goodcore.co.uk
      • E-mail: contact@goodcore.co.uk
      • Facebook: www.facebook.com/goodcoresoftware
      • LinkedIn: www.linkedin.com/company/goodcore-software
      • Address: Airport House, Purley Way, Croydon CR0 0XZ
      • Phone: 020 8781 6903
      5. Theodo

      5. Theodo

      Theodo is a software development agency working on mobile and web application projects. They develop front-end interfaces for custom SaaS applications, focusing on creating user-friendly and responsive designs for iOS, Android, and web platforms. Their work often includes integrating cloud infrastructure and agile development methods to support scalable and flexible solutions.

      Their projects cover a range of industries, with examples including apps for airlines and retail. Theodo collaborates with clients to deliver solutions that fit tight deadlines while maintaining functionality across multiple platforms. Their approach includes training client teams when needed and supporting ongoing digital transformation efforts.

       

      Key Highlights:

      • Front-end development for mobile and web apps
      • Integration with cloud platforms like AWS, Azure, and GCP
      • Agile development process
      • Support for cross-platform applications (iOS, Android, web)
      • Collaboration with client teams

       

      Services:

      • Mobile app development
      • Web application development
      • Cloud infrastructure design
      • Digital transformation consulting
      • Generative AI and AI-assisted product development

       

      Contact Information:

      • Website: www.theodo.co.uk
      • E-mail: contact-uk@theodo.com
      • Twitter: x.com/theodo_uk
      • LinkedIn: www.linkedin.com/company/theodo-uk
      • Address: 20 Baltic Street East, London EC1Y 0UL
      6. Inviqa

      6. Inviqa

      Inviqa is a digital product agency that combines strategy, design, and engineering to develop software solutions. Their front-end development focuses on accessibility, inclusive design, and creating digital experiences that meet diverse user needs. They work closely with clients as partners, embedding into teams to deliver ongoing support.

      The company emphasizes transparency and evidence-based decisions throughout development. They apply agile methodologies to ensure solutions evolve according to real user insights and business goals. They also focus on knowledge sharing and upskilling client teams during projects.

       

      Key Highlights:

      • Emphasis on accessibility and inclusive design
      • Collaborative approach with clients
      • Agile methodologies with evidence-based decisions
      • Transparent communication and knowledge sharing
      • Focus on team capability building

       

      Services:

      • Front-end and full-stack development
      • Digital product strategy
      • UX/UI design with accessibility focus
      • Agile delivery and team collaboration
      • Client team training and upskilling

       

      Contact Information:

      • Website: inviqa.com
      • E-mail: getintouch@inviqa.com
      • Address: Havas Village London 3 Pancras Square London N1C 4AG
      • Phone: +44 (0)20 3882 8924
      7. Netguru

      7. Netguru

      Netguru is a digital acceleration company delivering software solutions with an emphasis on AI integration and team extension. Their front-end development supports applications across multiple sectors, focusing on building scalable, user-centered interfaces. They work with clients in various regions including the UK, combining design and engineering expertise.

      Their projects often include proof of concept development and fast delivery cycles, especially in areas requiring innovative technologies like AI. Netguru also supports clients by extending their engineering and design teams to meet project demands.

       

      Key Highlights:

      • Front-end development with focus on scalability
      • Integration of AI and innovative technologies
      • Team extension and collaboration with clients
      • Fast delivery of proof of concepts
      • Work across multiple industries and regions

       

      Services:

      • SaaS and web application development
      • AI adoption and integration
      • Front-end and full-stack engineering
      • Design and user experience services
      • Engineering team extension

       

      Contact Information:

      • Website: www.netguru.com
      • E-mail: hello@netguru.com.
      • Facebook: www.facebook.com/netguru
      • Twitter: x.com/netguru
      • LinkedIn: www.linkedin.com/company/netguru
      • Address: ul. Małe Garbary 9 61-756 Poznań, Poland
      8. Ciklum

      8. Ciklum

      Ciklum is an experienced engineering company focused on developing AI-powered digital solutions for enterprise businesses. Their front-end development work involves building user interfaces that support complex digital products integrating advanced AI and product engineering. They collaborate with global clients to deliver applications designed to improve user experience and operational efficiency.

      The company combines engineering skills with experience design to create products and services aimed at transforming how people interact with technology. Their teams work on scalable front-end applications that support AI capabilities and meet the evolving needs of modern businesses.

       

      Key Highlights:

      • AI-powered experience engineering
      • Front-end development for complex digital products
      • Integration of AI and product engineering
      • Global delivery teams

       

      Services:

      • SaaS application development
      • Front-end and experience design
      • AI and machine learning integration
      • Product engineering
      • Consulting and digital transformation

       

      Contact Information:

      • Website: www.ciklum.com
      • E-mail: hello@ciklum.com
      • Address: 5th Floor Standon House, 21 Mansell Street, London, United Kingdom, E1 8AA
      9. ValueCoders

      9. ValueCoders

      ValueCoders offers SaaS consulting and development services with a focus on building interactive and user-centered front-end applications. Their development process includes creating user personas and journeys, interactive prototypes, and UI toolkits to guide developers in building efficient interfaces. They emphasize aligning software with client business goals and market demand.

      The company provides a range of services to support SaaS products throughout their lifecycle, including testing, support, feature enhancements, and cloud migration. They also offer API development to improve software integration and performance.

       

      Key Highlights:

      • User persona and journey development
      • Interactive prototyping and UI toolkit creation
      • SaaS lifecycle support including testing and maintenance
      • Feature enhancement and cloud migration
      • API development and integration

       

      Services:

      • SaaS consulting and development
      • Front-end UI/UX design
      • Testing and quality assurance
      • Support and maintenance
      • API development and cloud migration

       

      Contact Information:

      • Website: www.valuecoders.com
      • E-mail: sales@valuecoders.com
      • Facebook: www.facebook.com/ValueCoders
      • Twitter: x.com/ValueCoders
      • LinkedIn: www.linkedin.com/company/valuecoders
      • Instagram: www.instagram.com/valuecodersofficial
      • Address: 167-169 Great Portland Street, 5th Floor, London W1W 5PF, United Kingdom
      • Phone: +44 20 3239 2299
      10. Endava

      10. Endava

      Endava focuses on delivering software solutions with an emphasis on thoughtful collaboration and adaptability. Their front-end development services contribute to building flexible and user-friendly digital products. They aim to work closely with clients, adapting to changing needs and complex environments.

      The company values transparency, trust, and making a positive impact on clients and communities. Their teams develop front-end applications designed to be scalable and maintainable, supporting long-term project goals across various industries.

       

      Key Highlights:

      • Emphasis on collaboration and adaptability
      • Front-end development for scalable applications
      • Focus on transparency and trust
      • Development suited for complex environments

       

      Services:

      • SaaS and web application development
      • Front-end engineering
      • Agile development support
      • Digital transformation consulting
      • Client collaboration and support

       

      Contact Information:

      • Website: endava.com
      • Facebook: www.facebook.com/endava
      • LinkedIn: www.linkedin.com/company/endava
      • Instagram: www.instagram.com/endava
      • Address: 125 Old Broad Street, London, EC2N 1AR, UK
      • Phone: +44 20 7367 1000
      11. SoftwareHut

      11. SoftwareHut

      SoftwareHut is a software development company that supports clients ranging from startups to large enterprises. They focus on understanding each project’s specific needs and discussing tailored solutions rather than using standard approaches. Their teams are involved in front-end development tasks as part of broader software engineering work, adapting to different client requirements.

      Their development approach includes open communication and flexibility, supported by a team that continuously improves its skills. They aim to match the right specialists to each project and maintain a workflow that fits the scale and scope of the client’s goals.

       

      Key Highlights:

      • Tailored development approach for different client types
      • Open communication during planning and execution
      • Front-end development as part of larger software builds
      • Focus on building and maintaining a skilled development team

       

      Services:

      • SaaS and custom software development
      • Front-end and UI development
      • Technical consulting and solution planning
      • Team extension and staffing
      • Ongoing support and collaboration

       

      Contact Information:

      • Website: softwarehut.com
      • E-mail: poland@softwarehut.com
      • Facebook: www.facebook.com/softwarehutpl
      • LinkedIn: www.linkedin.com/company/softwarehut
      • Address: Sienkiewicza 110 15-005 Białystok
      • Phone: +44 7775 517 771
      12. Thoughtworks

      12. Thoughtworks

      Thoughtworks is a global technology consultancy that combines engineering, design, and AI capabilities. Their front-end development supports the creation of scalable platforms and user-facing applications across industries. They focus on aligning technology with business strategy and apply engineering best practices to deliver maintainable software.

      Their teams work closely with clients to build digital systems that are adaptable and ready for future changes. Front-end development is part of their broader services aimed at delivering products that balance usability, performance, and long-term value.

       

      Key Highlights:

      • Front-end development for scalable platforms
      • Integration of AI and data capabilities
      • Emphasis on long-term software maintainability
      • Experience in enterprise and multi-region delivery

       

      Services:

      • SaaS product development
      • Front-end engineering
      • Design and UX strategy
      • AI-enabled product development
      • Digital transformation consulting

       

      Contact Information:

      • Website: www.thoughtworks.com
      • E-mail: contact-uk@thoughtworks.com
      • Facebook: www.facebook.com/Thoughtworks
      • Twitter: x.com/thoughtworks
      • LinkedIn: www.linkedin.com/company/thoughtworks
      • Instagram: www.instagram.com/thoughtworks
      • Address: Endeavour House, 3rd Floor 179-199 Shaftesbury Avenue London, England, WC2H 8JR
      • Phone: +44 (0)20 8164 0829
      13. Waracle

      13. Waracle

      Waracle works on digital product development for businesses that require SaaS solutions with a focus on fast delivery. They collaborate closely with internal client teams to build front-end interfaces that align with operational needs and business goals. Their approach emphasizes iterative development and practical implementation for real-world use.

      They develop web and mobile applications as part of larger SaaS platforms. Their front-end work aims to ensure usability, stability, and adaptability for long-term projects across different industries.

       

      Key Highlights:

      • Front-end development for SaaS applications
      • Collaboration with internal client teams
      • Support for mobile and web platforms
      • Iterative and outcome-driven process

       

      Services:

      • SaaS application development
      • Front-end engineering
      • UI/UX design
      • Digital product support
      • Technology consulting

       

      Contact Information:

      • Website: waracle.com
      • Facebook: www.facebook.com/waracle
      • Twitter: x.com/WaracleUK
      • LinkedIn: www.linkedin.com/company/waracle
      • Instagram: www.instagram.com/waracle
      • Address: Warnford Court, 29 Throgmorton St, London EC2N 2AT
      • Phone: 0330 808 4436
      14. Apadmi

      14. Apadmi

      Apadmi develops SaaS products with a strong focus on mobile technology and user-facing design. Their teams work with clients to define technical goals, design user journeys, and build front-end applications across platforms. They combine research, design, coding, and testing to support product delivery from start to finish.

      In addition to development, they offer ongoing support to optimize digital products after launch. Their front-end work includes system integrations and user analytics to ensure applications meet performance expectations.

       

      Key Highlights:

      • Mobile-first front-end development for SaaS
      • End-to-end product delivery
      • User-focused design and testing
      • System integration and product optimisation

       

      Services:

      • SaaS and mobile app development
      • Front-end interface design
      • Technical planning and strategy
      • Middleware and platform integration
      • User engagement analysis

       

      Contact Information:

      • Website: www.apadmi.com
      • E-mail: hello@apadmi.com
      • Facebook: www.facebook.com/ApadmiLTD
      • Twitter: x.com/apadmi
      • LinkedIn: www.linkedin.com/company/apadmi-ltd
      • Instagram: www.instagram.com/apadmi
      • Address: Hamilton House, Mabledon Place, London, United Kingdom, WC1H9BB
      • Phone: 0208 050 1945
      15. Hedgehog Lab

      15. Hedgehog Lab

      Hedgehog Lab focuses on front-end development as part of their broader SaaS product engineering work. They support both mobile and web platforms and build interfaces designed for scalability and ease of use. Their development process includes close collaboration with clients to ensure alignment with business and user needs.

      In addition to core development, they work with cloud infrastructure, design systems, and data integration. Their teams handle projects that require adaptable and maintainable front-end solutions for long-term use.

       

      Key Highlights:

      • Front-end development across mobile and web
      • Support for scalable SaaS platforms
      • Integration with cloud and data systems
      • Collaborative approach to product delivery

       

      Services:

      • Web and mobile SaaS development
      • UI/UX design
      • Front-end engineering
      • Cloud integration
      • Product research and consulting

       

      Contact Information:

      • Website: hedgehoglab.com
      • Facebook: www.facebook.com/hedgehoglabhq
      • Twitter: x.com/hedgehoglab
      • LinkedIn: www.linkedin.com/company/hedgehog-lab
      • Instagram: www.instagram.com/hedgehog_lab
      • Address: HQ Newcastle, One Strawberry Lane, Newcastle Upon Tyne, NE1 4BX
      • Phone: 0333 2423132

      Conclusion

      The SaaS development landscape in the UK includes a wide range of companies offering front-end and full-stack solutions tailored to different business needs. These firms support startups and enterprises in building scalable web and mobile platforms, often combining development with strategy, design, and ongoing support.

      While their specific approaches and service areas may vary, they all contribute to shaping digital products that help businesses operate more efficiently and connect with users. By working with teams that understand both technology and usability, companies can better align their software with business goals and long-term requirements.

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