Best Custom Software Development Companies in the UK

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 is home to a thriving tech scene, with custom software development companies delivering tailored digital solutions across industries. Whether you’re a startup looking to build your first app or an enterprise in need of scalable systems, these UK-based firms combine technical expertise with deep business understanding to meet your unique needs. This article explores the top custom software development providers in the UK and what makes them stand out.

    1. LenGreo

    1. LenGreo

    We are a digital marketing company that collaborates with businesses in various sectors, including custom software development firms in the UK. While we are not based in the UK and do not provide software development services ourselves, we support UK development companies by helping them generate leads, improve digital visibility, and optimize client acquisition processes.

    Our role is to assist these software companies in expanding their reach through targeted marketing strategies. We focus on areas like SEO, outreach campaigns, paid advertising, and content development. This helps UK-based software providers focus on their core services while improving their business development efforts through external marketing support.

     

    Key Highlights:

    • Does not provide software development services
    • Works with UK software companies as a marketing partner
    • Focus on B2B lead generation and digital strategy
    • Experience with international tech and IT clients

     

    Services:

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

     

    Contact Information:

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

    2. Empat

    Empat is a software development company that offers tailored services to businesses, including those in the UK. They focus on mobile and web development, custom CRM systems, AI software, and startup support services. Their approach includes providing dedicated developers and full-stack specialists for projects of various sizes and scopes. Empat also offers CTO-as-a-Service and MVP development for early-stage software products.

    The company works with a wide range of technologies and supports multiple industries. By offering pre-vetted developers and tech specialists, they enable UK clients to scale their software teams efficiently. Their services help streamline both frontend and backend development and add AI capabilities to digital products when needed.

     

    Key Highlights:

    • Works with UK clients through remote and dedicated developer models
    • Offers services for startups and enterprise teams
    • Supports both frontend and backend software development
    • Provides flexible hiring models for tech talent
    • Experience in AI, fintech, and mobile applications

     

    Services:

    • Custom web and mobile app development
    • Dedicated and full-stack developer hiring
    • MVP development and CTO-as-a-Service
    • AI software development
    • CRM system development
    • Startup product development and support
    • Frontend and backend engineering
    • Maintenance and post-launch support

     

    Contact Information:

    • Website: www.empat.tech
    • E-mail: hello@empat.tech
    • Facebook: www.facebook.com/empat.tech
    • Twitter: x.com/EmpatTech
    • LinkedIn: www.linkedin.com/company/empat-tech
    • Instagram: www.instagram.com/empat.tech
    • Address: 10 York Road, London, UK

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      3. Senla

      3. Senla

      Senla provides custom software development services through dedicated teams, staff augmentation, and development centers. Though they are not based in the UK, they work with UK-based clients by offering access to in-house engineers and scalable remote teams. Their service model includes assembling teams of software engineers, quality assurance specialists, and DevOps experts based on project needs.

      They focus on providing reliable resources and maintaining control over team performance without using third-party contractors. Their clients can hire individual developers or entire cross-functional teams to support ongoing or new software projects. This setup helps UK software companies quickly expand capacity while maintaining oversight and flexibility.

       

      Key Highlights:

      • Not headquartered in the UK but works with UK clients
      • All developers are in-house, no use of freelancers
      • Emphasis on long-term team integration
      • Scalable hiring for engineering teams
      • Supports full software development lifecycle

       

      Services:

      • Staff augmentation for software projects
      • Dedicated development teams
      • Custom development centers
      • Software engineering
      • QA and testing
      • DevOps support
      • Project management and onboarding
      • Business analysis and UX design

       

      Contact Information:

      • Website: senlainc.com
      • E-mail: sales-uk@senlainc.com
      • LinkedIn: www.linkedin.com/company/senla-software-engineering-laboratory
      • Instagram: www.instagram.com/senlainc
      • Address: Wards Place,E14 9TP, London, UK
      • Phone: +447442688837
      4. Snotor

      4. Snotor

      Snotor is a software development company offering custom digital solutions to businesses, including those based in the UK. They focus on building tailored web and mobile applications, SaaS platforms, online stores, CRM and ERP systems. Their process covers everything from discovery and design to full-cycle development and product evolution. Snotor works with clients across industries and adapts solutions based on specific business goals.

      They provide flexible collaboration models such as offshore development centers and proof of concept support for startups. Their approach emphasizes practical solutions and clear communication throughout the development cycle. For UK businesses seeking support with software delivery, Snotor contributes by helping define, plan, and implement digital products that align with organizational needs.

       

      Key Highlights:

      • Offers full-cycle custom software development
      • Works with UK-based clients
      • Provides both enterprise and startup-level support
      • Uses IT consulting in early project stages
      • Focused on tailored business platforms

       

      Services:

      • Web and mobile app development
      • SaaS platform development
      • Online store development
      • CRM and ERP system development
      • Offshore development center services
      • UX and UI design
      • Proof of concept (PoC) for startups

       

      Contact Information:

      • Website: snotor.pro
      • E-mail: lon@snotor.pro
      • LinkedIn: www.linkedin.com/company/snotor-company
      • Address: 59 St. Martin’s Lane, Suite 8, London, England, WC2N 4JS, UK
      • Phone: +44 7392 032352
      5. Postjer

      5. Postjer

      Postjer is a digital agency that combines software development with creative services. They work with UK-based clients by building web and mobile applications, along with providing branding, digital marketing, and design support. Their process includes discovery and strategy, which helps align technical solutions with business objectives. Postjer focuses on delivering functional and visually appealing digital products.

      Their team supports companies in creating custom apps and digital platforms that cover both frontend and backend requirements. By offering a mix of development and design services, they assist clients in achieving consistent online presence and product usability. For businesses in the UK looking for custom solutions with a design-driven angle, Postjer offers a broad set of capabilities.

       

      Key Highlights:

      • Offers both technical and creative digital services
      • Supports web and app projects for UK clients
      • Covers full product design and strategy
      • Combines development with branding and marketing
      • Focus on end-to-end digital solutions

       

      Services:

      • Web design and development
      • Mobile app design and development
      • Branding and creative services
      • Digital marketing
      • Product discovery and strategy
      • UX and UI design

       

      Contact Information:

      • Website: www.postjer.agency
      • E-mail:  talk@postjer.agency
      • Facebook: www.facebook.com/postjergroup
      • Twitter: x.com/PostjerGroup
      • LinkedIn: www.linkedin.com/company/postjer
      • Instagram: www.instagram.com/postjer.agency
      • Address:27 Old Gloucester Street, London, WC1N 3AX, UK
      • Phone: +44 20 3137 4686
      6. The Virtual Forge

      6. The Virtual Forge

      The Virtual Forge provides custom software development services with a focus on data-driven solutions. Based in the UK, they work with a range of clients across industries to deliver applications tailored to specific business needs. Their services include building enterprise-grade web platforms, cloud applications, and multiplatform software designed to integrate with existing systems and infrastructure.

      Their team combines technical consulting, UI/UX design, testing, and DevOps to support full software lifecycles. In addition to development, they offer support with data strategy, third-party system integration, and cloud architecture. UK-based businesses looking for adaptable digital tools often engage The Virtual Forge to create custom software that aligns with operational processes and compliance requirements.

       

      Key Highlights:

      • Based in the UK with focus on custom, data-driven applications
      • Supports full software lifecycle from design to deployment
      • Works across multiple industries with platform-agnostic approach
      • Offers technical advisory, project management, and testing
      • Experience in enterprise integrations and cloud-based systems

       

      Services:

      • Custom software development
      • Cloud application development (SaaS)
      • Enterprise web applications
      • Multiplatform software development
      • UX and UI design
      • Software testing and quality assurance
      • System integration and DevOps
      • Data strategy and analytics consulting

       

      Contact Information:

      • Website: www.thevirtualforge.com
      • E-mail: connect@thevirtualforge.com
      • Facebook: www.facebook.com/TheVirtualForgeUK
      • Twitter: x.com/thevirtualforge
      • LinkedIn: www.linkedin.com/company/the-virtual-forge
      • Instagram: www.instagram.com/thevirtualforge
      • Phone: +44 (0) 207 078 8855
      • Address: 50 Liverpool St, London EC2M 7PY, UK
      7. ebizneeds

      7. ebizneeds

      ebizneeds provides full-stack software development and AI integration services that support businesses aiming to modernize their operations. While not UK-based, they offer solutions used by companies in the UK and elsewhere, including AI-driven automation, full-stack product development, and CTO-as-a-Service. Their offerings focus on practical applications of AI and building scalable, maintainable systems across industries.

      They assist clients with legacy system modernization, DevOps setup, and infrastructure management. Their approach includes dedicated tech teams, custom development strategies, and a strong focus on documentation and knowledge transfer. ebizneeds works with businesses looking to embed AI in workflows, build new digital products, or streamline their backend systems using reliable development practices.

       

      Key Highlights:

      • Offers AI integration for enterprise and startup solutions
      • Supports full-stack development using modern technologies
      • Provides CTO-as-a-Service and embedded tech teams
      • Works with UK clients on modernization and automation projects
      • Includes DevOps setup and cloud infrastructure as part of delivery

       

      Services:

      • Full-stack software development
      • AI opportunity audits and workflow integration
      • Legacy system modernization
      • CTO-as-a-Service
      • Dedicated agile tech pods
      • DevOps setup and cloud infrastructure
      • Predictive analytics and AI-powered automation

       

      Contact Information:

      • Website: www.ebizneeds.ai
      • E-mail: talk2us @ ebizneeds.com
      • Facebook: www.facebook.com/ebizneeds
      • Twitter: x.com/ebizneeds
      • LinkedIn: www.linkedin.com/company/ebizneeds
      • Instagram: www.instagram.com/eBizneedsofficial
      • Address: Office 4.01, 4th Floor The Tea Building 56 Shoreditch High St London E1 6JJ, UK
      • Phone: +91 73759 16000
      8. Cubet

      8. Cubet

      Cubet delivers custom software development services including web and mobile apps, product engineering, and IT staff augmentation. Their teams work with businesses across several sectors such as healthcare, education, BFSI, retail, and hospitality. Although the company is not headquartered in the UK, they engage with UK-based clients in both enterprise and SaaS product development.

      Their expertise includes cloud integrations, AI-based enhancements, and digital transformation consulting. Cubet supports projects from concept through ongoing support and offers flexible team engagement options to fit various business needs. Their technical capabilities are used to build scalable platforms, modernize legacy applications, and integrate third-party enterprise tools.

       

      Key Highlights:

      • Engages in digital product development across multiple industries
      • Supports enterprise SaaS and mobile applications
      • Offers IT staff augmentation with specialized tech skills
      • Works with UK clients in healthcare, retail, and education sectors
      • Provides consulting, cloud, and AI-powered solutions

       

      Services:

      • Custom web and mobile application development
      • Product engineering and modernization
      • Staff augmentation for full-stack and hybrid teams
      • AI-driven recommendation engines and virtual agents
      • Integration with platforms like Salesforce and Microsoft Dynamics
      • Support and maintenance for enterprise platforms

       

      Contact Information:

      • Website: cubettech.com
      • E-mail: hello@cubettech.com
      • Facebook: www.facebook.com/CubetTech
      • Twitter: x.com/CubetTech
      • LinkedIn: www.linkedin.com/company/cubet-technologies
      • Instagram: www.instagram.com/cubettechnolabs
      • Address: 71-75 Shelton Street, Covent Garden, London WC2H 9JQ, United Kingdom
      9. Magora

      9. Magora

      Magora is a software development company offering custom web and mobile app development, primarily for clients in logistics, healthcare, real estate, and education. They provide tailored development services including product discovery, MVP creation, and ongoing software maintenance. Their teams also develop AI-enabled applications and IoT solutions. Though not based in the UK, they work with clients globally, including within the UK.

      Magora supports businesses by creating custom solutions based on user needs, with an emphasis on functionality and user experience. They guide projects through structured stages from discovery to testing and release. Their technical expertise includes a wide range of development stacks used to build scalable and maintainable software products.

       

      Key Highlights:

      • Offers full-cycle product development from discovery to launch
      • Works with UK clients across several industries
      • Provides both AI/ML solutions and IoT app development
      • Emphasizes user experience and product scalability
      • Offers maintenance and reengineering for existing systems

       

      Services:

      • Custom web and mobile app development
      • Product discovery and MVP development
      • AI and machine learning integration
      • IoT software development
      • Legacy software modernization
      • Software testing and quality assurance
      • Bespoke enterprise software solutions

       

      Contact Information:

      • Website: magora-systems.com
      • E-mail: info@magora.co.uk
      • Facebook: www.facebook.com/magora.systems
      • Twitter: x.com/magora_systems
      • LinkedIn: www.linkedin.com/company/magora
      • Instagram: www.instagram.com/magora_team
      • Address: Office 4.01, 4th Floor The Tea Building 56 Shoreditch High St London E1 6JJ, UK
      • Phone: +44 20 7183 5820
      10. Sigli

      10. Sigli

      Sigli provides custom software development and technical services to a wide range of businesses, including clients in the UK. They cover several areas such as product development, staff augmentation, QA on demand, and web development. Their approach allows clients to access flexible engineering support and data-driven solutions, especially useful for businesses scaling or transitioning their software infrastructure.

      They also offer services connected to regulatory compliance, particularly with DORA (Digital Operational Resilience Act), and AI-based enhancements. Their work with web applications ranges from small CRM tools to industrial monitoring systems. For UK businesses seeking external engineering teams or support for proof-of-concept and MVP stages, Sigli delivers structured services that adapt to project needs.

       

      Key Highlights:

      • Supports UK clients with custom web and data-driven development
      • Offers engineering resources through staff and teams on demand
      • Covers full software lifecycle from concept to testing
      • Experience with compliance-related development such as DORA
      • Provides AI-focused and cybersecurity-aligned services

       

      Services:

      • Custom software development
      • Proof of concept and MVP creation
      • Web development
      • Staff augmentation
      • QA on demand
      • AI and data engineering solutions
      • Digital compliance tools

       

      Contact Information:

      • Website: www.sigli.com
      • E-mail: info@sigli.com
      • Facebook: www.facebook.com/SigliOfficial
      • LinkedIn: www.linkedin.com/company/sigli
      • Instagram: www.instagram.com/sigli.gang
      • Address: Capital Office, 124 City Road, London, EC1V 2NX, UK
      • Phone: +447458197211
      11. Phaedra Solutions

      11. Phaedra Solutions

      Phaedra Solutions delivers custom software development and AI services tailored to startups and enterprises, including clients in the UK. Their work includes full-cycle product development, design, MVP delivery, and AI-based automation. They also offer fractional CTO services and consultancy aimed at helping businesses align their technology strategy with real goals.

      Their capabilities span web and mobile development, QA, and digital transformation, supported by a broad tech stack including React, Angular, Next.js, and cloud providers like AWS and Azure. For UK clients, they offer project-based delivery or team augmentation, allowing flexibility in how technical resources are applied to product builds or business systems.

       

      Key Highlights:

      • Works with UK-based startups and enterprises
      • Provides AI integration and prompt engineering
      • Covers design, development, and strategy
      • Offers fractional CTO and advisory services
      • Focused on practical, iterative MVP development

       

      Services:

      • Custom software development
      • MVP development and validation
      • Product design and UX services
      • Generative AI and automation tools
      • IT consulting and tech strategy
      • QA and agile project management
      • Staff augmentation and cloud solutions

       

      Contact Information:

      • Website: www.phaedrasolutions.com
      • E-mail: hello@phaedrasolutions.com
      • Facebook: www.facebook.com/PhaedraSolutions
      • Twitter: x.com/phaedrasolutio1
      • LinkedIn: www.linkedin.com/company/phaedra-solutions
      • Instagram: www.instagram.com/PhaedraSolutions
      • Phone: +971 (507) 562 346
      12. Systango

      12. Systango

      Systango offers custom software development and platform engineering services to clients in the UK and globally. Their expertise includes AI and machine learning, blockchain development, and data infrastructure. They support businesses with services like web and mobile app development, managed cloud operations, and secure AI deployment. Their approach is structured around assembling project-specific teams that align closely with client objectives.

      They also deliver DevOps, data pipelines, and CI/CD systems to enable reliable deployment workflows. Systango works across industries such as finance, retail, and healthcare, providing scalable platforms and technical systems designed for performance, security, and future adaptability.

       

      Key Highlights:

      • Serves UK businesses with AI, platform, and blockchain solutions
      • Combines application development with cloud infrastructure
      • Supports both startups and enterprise-grade clients
      • Provides pre-assembled cross-functional tech teams
      • Focused on data engineering and operational reliability

       

      Services:

      • Custom web and mobile application development
      • AI and machine learning implementation
      • Platform engineering and DevOps
      • Data engineering and cloud infrastructure
      • Blockchain and Web3 development
      • Managed support and infrastructure monitoring

       

      Contact Information:

      • Website: www.systango.com
      • E-mail: hello@systango.com
      • Facebook: www.facebook.com/Systango
      • Twitter: x.com/systango
      • LinkedIn: www.linkedin.com/company/systango
      • Instagram: www.instagram.com/systango
      13. Kernelics

      13. Kernelics

      Kernelics offers custom software development services with a focus on mobile and web applications. They work with startups and established businesses, providing engineering support through dedicated development teams. Although not based in the UK, they support UK clients by delivering services such as MVP development, app design, and full-cycle product builds. Their team consists of developers, designers, QA engineers, and product managers.

      They provide flexible cooperation models depending on the project scope, including remote development and team extension. Their main focus is to support clients through early-stage planning, technical execution, and product launch. For UK-based businesses looking for mobile or web development support, Kernelics offers tailored resources and delivery options.

       

      Key Highlights:

      • Supports UK clients through remote engineering teams
      • Experience with mobile and web development projects
      • Offers team extension and product delivery models
      • Works with startups at MVP and launch stages
      • Offers dedicated app developers for hire

       

      Services:

      • iOS and Android app development
      • React Native and hybrid app development
      • MVP development
      • Web application development
      • Hiring of dedicated developers

       

      Contact Information:

      • Website: kernelics.com
      • E-mail: project@kernelics.com
      • LinkedIn: www.linkedin.com/company/kernelics
      • Instagram: www.instagram.com/kernelics
      • Address: 27 Old Gloucester Street, London, United Kingdom
      14. Solar Digital

      14. Solar Digital

      Solar Digital provides custom web and mobile development services, as well as design and branding support. They work on both long-term team-based projects and short-term deliverables such as MVPs, online stores, and creative websites. Their work with UK clients includes building scalable platforms and delivering user-focused designs. They also specialize in creating marketplaces, corporate sites, and mobile applications for various sectors.

      In addition to development, they consult startups on product planning and design. Their team works on industry-specific solutions, including logistics, e-commerce, fintech, and hospitality. Their design-driven approach makes them a fit for businesses seeking a balance between functionality and user experience.

       

      Key Highlights:

      • Offers project-based and team-based cooperation models
      • Supports UK clients in logistics, e-commerce, and fintech
      • Focus on UI/UX and full product design
      • Provides mobile, web, and marketplace development
      • Experience in both creative and corporate platforms

       

      Services:

      • Web and mobile app development
      • UI/UX design and branding
      • Online store and marketplace development
      • MVP creation for startups
      • Corporate website development
      • E-commerce and industry-specific software

       

      Contact Information:

      • Website: solar-digital.com
      • Email: sales@solar-digital.com
      • Facebook: www.facebook.com/solardigitalua
      • Twitter: x.com/solardigitalua
      • LinkedIn: www.linkedin.com/company/solar-digital
      • Instagram: www.instagram.com/solar.digital
      • Phone: +44 (20) 8068-5324
      15. ManekTech

      15. ManekTech

      ManekTech provides a wide range of custom software development services, including mobile apps, enterprise systems, and cloud solutions. They support UK clients with development in areas such as ecommerce, CRM systems, web platforms, and mobile applications. Their team covers multiple technologies including .NET, PHP, Python, JavaScript frameworks, and mobile stacks like Flutter and Kotlin.

      They also offer backend and frontend development, AI integration, and testing services. Their flexible delivery models allow businesses to work with dedicated developers or full project teams. For UK companies looking to develop or modernize digital platforms, ManekTech delivers services aligned with current tech standards and frameworks.

       

      Key Highlights:

      • Covers a broad tech stack across web, mobile, and cloud
      • Works with UK businesses on enterprise and product development
      • Offers app testing and QA alongside development
      • Supports integration with CMS, ecommerce, and CRM platforms
      • Includes AI, AR/VR, and IoT in project capabilities

       

      Services:

      • Custom software and product development
      • iOS, Android, and cross-platform mobile development
      • Web app and ecommerce development
      • Testing and quality assurance
      • Cloud and DevOps services
      • AI, ML, and IoT application development
      • CMS and backend integration

       

      Contact Information:

      • Website: www.manektech.com
      • E-mail: uk@manektech.com
      • Twitter: x.com/manektech
      • LinkedIn: www.linkedin.com/company/manektech
      • Instagram: www.instagram.com/manektech
      • Address: 7 Artisan Place Harrow, HA3 5DS, UK
      • Phone: +447894401455

      Conclusion

      Choosing the right custom software development partner is a key step for businesses looking to build reliable, scalable digital solutions. The companies covered in this article offer a mix of technical expertise, industry experience, and flexible collaboration models that suit the needs of various UK-based organizations. Whether it’s web platforms, mobile apps, enterprise systems, or AI-driven tools, these providers contribute to software projects with practical approaches and dedicated teams.

      As demand for tailored software grows across sectors like healthcare, fintech, retail, and logistics, businesses in the UK benefit from working with development teams that understand both technology and real-world business challenges. Reviewing project goals, required skills, and communication processes will help in selecting a development partner that aligns with long-term objectives.