Enterprise Web Application Development Companies in the United Kingdom

We build and evolve enterprise web applications that carry real workloads – portals with role management, data-heavy dashboards, and integrations that keep information flowing between internal tools and third-party platforms. Our web development practice covers custom web apps, API engineering, and cloud-ready delivery, so teams can ship features without fighting the stack. We provide enterprise web application services in the United Kingdom and work with clients in the United Kingdom, aligning delivery to concrete objectives like reliability, performance, and auditability. 

Day to day, that means shaping UI and service contracts together, wiring CRMs or ERPs through documented interfaces, and planning releases that won’t derail operations. Engagements range from greenfield builds to modernization of running systems, with testing and monitoring wrapped in from the start. As a UK-registered company, we support local engagements alongside distributed teams, with a focus on predictable releases over one-off launches. 

Key Highlights:

• Flexible web application delivery aligned to operational workflows
• Emphasis on integrations via documented APIs and secure data flows
• Active engagements with clients in the United Kingdom
• Focus on scalability, testing, and ongoing support 

Services:

• Enterprise web application design and build for portals and internal tools
• API engineering, documentation, and integration with CRM, ERP, and analytics systems
• Modernization of existing web estates with cloud-ready architectures and release hardening
• Progressive and single-page web interfaces with accessibility and performance tuning
• Quality engineering for web platforms including automated tests and monitoring setup 

Contact Information:

• Website: Lengreo
• Contact Email: hi@lengreo.com
• Phone Number: +31 686 147 566
• LinkedIn: Lengreo
• Twitter: @Lengreo
• Instagram: @lengreo

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Classic Informatics works at the intersection of product engineering and data-led platforms, building web applications that sit at the core of business operations. The team leans on front-end and full-stack development, platform modernization, and automated testing to deliver systems that are maintainable and scalable over time. Projects often involve reworking legacy stacks into cloud-ready architectures, connecting data sources, and shaping interfaces that support high-volume use. 

Key Highlights:

• Focus on platform modernization and cloud-ready architectures
• Full-stack delivery spanning UI, services, and testing
• Data warehousing and BI support for product teams
• Option to extend products with ML and AI features

Services:

• Custom enterprise web application development
• Platform modernization and re-architecture
• Front-end and full-stack engineering
• Automated testing and quality engineering
• Data warehousing and business intelligence enablement
• AI feature integration for existing web products

Contact Information:

• Website: www.classicinformatics.com
• E-mail: hello@classicinformatics.com
• Facebook: www.facebook.com/classicinformatics
• Twitter: x.com/classicinfo
• LinkedIn: www.linkedin.com/company/classic-informatics-private-limited
• Address: 14 Bonhill Street, London, EC2A 4BX, United Kingdom
• Phone: +44 20332 23550

Dotsquares approaches enterprise web builds as a broader software problem, not just front-end pages. Core offerings span custom software, web development, and API design, backed by security practices and cloud solutions suitable for regulated environments. The firm also implements CRM platforms and data engineering pipelines, which helps when a web application must pull from multiple systems without breaking under load. Modernisation appears frequently in case studies and solution pages, showing upgrades, migrations, and performance work to keep platforms current. 

The capability set covers new builds and long-term care: application upgrades, QA and testing, and cloud development aimed at scalability and cost control. For web programs that extend into mobile or integrate with e-commerce, there are dedicated service lines and API integration expertise, including REST, GraphQL, and third-party connectors. This breadth is useful when a portal needs to share data with CRM, payments, logistics, or analytics tools without manual glue code. 

Key Highlights:

• Application modernization for existing platforms
• API development and integration across internal and third-party systems
• Cloud implementation alongside security practices for enterprise workloads
• QA and testing options for performance and reliability 

Services:

• Custom enterprise web application development
• Application modernization and migrations
• API architecture and integration
• Cloud implementation and optimization
• CRM implementation and extension
• Quality assurance and performance testing

Contact Information:

• Website: www.dotsquares.com
• E-mail: office@dotsquares.com
• Facebook: www.facebook.com/dotsquaresuk
• Twitter: x.com/dotsquares
• LinkedIn: www.linkedin.com/company/dotsquares
• Instagram: www.instagram.com/dotsquaresltd
• Address: Unit 2 Hobbs Court, 2 Jacob Street, London SE1 2BG
• Phone: +44 208 0901819

London App Development builds web and software products that tie into enterprise workflows, with a catalog that ranges from web apps to ERP, CRM, and SaaS modules. Service pages highlight custom software, enterprise software, and system integration, which points to projects where a web UI sits on top of several back-office systems. The team also covers product development and testing, so delivery is not limited to the first launch cycle. 

For web work specifically, the agency lists custom web development, SPAs, PWAs, and support, which suggests an emphasis on interactive front ends and progressive enhancement for speed. Where a portal needs to talk to mobile apps or IoT devices, the tech stack includes React, Angular, Node.js, and other frameworks that help keep a single codebase coherent across channels. That helps when a feature must appear on the web first, then roll out to additional clients. 

Enterprise projects often require clean data paths, so the group pairs web delivery with software integration, CRM and ERP builds, and testing services. This reduces the typical friction between app UX and underlying systems, and it keeps the door open for phased releases as requirements evolve. 

Key Highlights:

• Custom builds spanning web apps, SPA and PWA patterns
• Enterprise software options including CRM and ERP modules
• Integration and testing services for multi-system environments
• Tooling and frameworks aligned with cross-platform delivery 

Services:

• Custom enterprise web application development
• Single-page and progressive web applications
• Enterprise software development for CRM and ERP
• Software integration and data exchange
• Product development and QA testing
• Web maintenance and ongoing support 

Contact Information:

• Website: londonappdevelopment.co.uk
• E-mail: sales@londonappdevelopment.co.uk
• Facebook: www.facebook.com/londonappdevelopment
• Twitter: x.com/london_app_dev
• LinkedIn: www.linkedin.com/company/london-app-development
• Address: Kemp House 152-160, City Road, London, EC1V 2NX, United Kingdom
• Phone: +44 203 467 7471

TatvaSoft focuses on building web platforms that handle real workstreams – transactional portals, data-heavy dashboards, and internal tools that plug into existing systems. Delivery spans custom engineering, interface development, and quality automation, with a clear push toward scalable architectures that stay reliable under load. Typical engagements include modernizing legacy stacks, setting up cloud-ready deployments, and shaping API layers for front ends to consume without friction. 

Key Highlights:

• Focus on custom web platforms for core operations
• Modernization and cloud adoption paired with QA and automation practices
• Attention to API design for integrations across internal and third-party systems
• Emphasis on performance, security, and long-term maintainability 

Services:

• Custom enterprise web application engineering
• Legacy platform modernization and re-architecture
• API design, integration, and middleware development
• Cloud-ready deployment and performance optimization
• Automated testing and quality engineering 

Contact Information:

• Website: www.tatvasoft.co.uk
• E-mail: info@tatvasoft.co.uk
• Facebook: www.facebook.com/TatvaSoft
• Twitter: x.com/tatvasoft
• LinkedIn: www.linkedin.com/company/tatvasoft
• Address: 307, Euston Road, London NW1 3AD, United Kingdom
• Phone: +44 742 409 8452

Intelivita approaches enterprise web builds as product work rather than one-off websites, with bespoke development that balances UX, speed, and security. Projects range from transactional portals to content-rich applications, often supported by consulting to shape scope, architecture, and rollout plans. 

On the technical side, the catalog mentions custom web development with SPA and PWA patterns, plus options for performance and SEO refinement where needed. Framework choices vary by use case, and implementation includes integration with back-office systems through documented interfaces. The goal is a front end that feels responsive while the services layer moves data safely and predictably. That combination suits portals that must coordinate user roles, workflows, and analytics without adding operational drag. 

Key Highlights:

• Bespoke web delivery supported by architectural and product consulting
• Coverage of SPA and PWA builds for interactive experiences
• Integration work aligned to documented APIs and service contracts
• Attention to optimization, accessibility, and ongoing support 

Services:

• Custom enterprise web application development with SPA or PWA approaches
• Web development consulting for scope, architecture, and roadmap
• Backend and third-party API integration for operational systems
• Performance, SEO, and accessibility optimization
• Maintenance and iterative enhancement programs 

Contact Information:

• Website: www.intelivita.co.uk
• E-mail: sales@intelivita.co.uk
• Facebook: www.facebook.com/intelivita
• Twitter: x.com/Intelivita
• LinkedIn: www.linkedin.com/company/intelivita
• Instagram: www.instagram.com/intelivita
• Address: Kemp House, 152-160 City Rd, London, EC1V 2NX, UK
• Phone: +44 161 504 3600

Itransition publishes a broad web application practice oriented to secure, scalable platforms that map to defined business goals. Service pages highlight end-to-end delivery, from discovery and UX through engineering, with attention to performance, reliability, and compliance. The positioning fits workloads that must coordinate many users, roles, and data sources without sacrificing usability. Case materials and solution pages also point to projects where the web front end rides on top of domain services and integrations. 

Enterprise work often means connecting applications to CRMs, ERPs, and analytics tools, so the stack leans on API design, data flows, and automation. The group pairs this with modernization and re-platforming where older systems need an upgrade path, plus migration support to phase changes safely. Delivery is structured to keep the platform extensible, which helps when departments request new modules months after launch. 

Operations do not end at go-live – the offering includes QA, performance testing, and DevOps practices to manage deployments and monitoring. Where a program benefits from domain services beyond the web layer, the company lists enterprise software engineering and integration capabilities to unify the estate. This reduces the gap between user-facing features and underlying processes, allowing the platform to evolve with fewer trade-offs. 

Key Highlights:

• End-to-end web delivery with security and scalability as baseline requirements
• Modernization and migration options for aging platforms
• Integration patterns for CRM, ERP, analytics, and external services
• QA and DevOps practices to support stable releases and monitoring 

Services:

• Enterprise web application design and engineering
• System integration with CRM, ERP, and analytics platforms
• Legacy modernization and phased migration
• Quality assurance, performance testing, and release engineering
• DevOps enablement for CI, CD, and observability 

Contact Information:

• Website: www.itransition.com
• E-mail: info@itransition.com
• Facebook: www.facebook.com/Itransition
• Twitter: x.com/itransition
• LinkedIn: www.linkedin.com/company/itransition
• Address: London 3rd floor, 5-8 Dysart St., EC2A 2BX
• Phone: +44 203 687 2281

Vention focuses on building web platforms that anchor day-to-day operations – transactional portals, role-based dashboards, and integration layers that keep data moving without manual effort. Delivery centers on custom engineering, resilient architectures, and security practices suitable for systems that carry sensitive information. Work typically spans front-end builds tied to well-defined APIs, plus the middleware that connects products to CRMs, ERPs, analytics, and identity providers. Modernization comes up often, with re-platforming and re-architecture to make older estates cloud-ready and easier to evolve. 

Key Highlights:

• Emphasis on scalable, secure web architectures for high-demand use cases
• API-first approach to connect front ends with line-of-business systems
• Modernization and cloud adoption paired with quality automation
• Consulting options to align scope, integration strategy, and release plans 

Services:

• Custom enterprise web application engineering
• Re-platforming, legacy modernization, and architecture refresh
• API design, integration, and middleware development for web products
• Cloud-ready deployment, performance tuning, and automated testing 

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: +44 207 117 28 42

Waracle treats enterprise web work as product development – shaping experiences, defining architecture, and iterating with cross-functional squads. Service pages point to end-to-end delivery across strategy, design, and engineering, with an eye on durability and measurable outcomes. The practice spans interactive web applications, content platforms, and data-informed features that sit alongside mobile and other channels. Many programs continue past first launch, folding in optimization, accessibility improvements, and roadmap support as usage grows. 

Case material shows hands-on integration with web CMS and service layers, including projects delivered on Umbraco with custom connectors and multi-device support. Additional write-ups describe intelligent experiences powered by analytics and domain logic across sectors where reliability matters. The throughline is pragmatic: ship value, wire systems together cleanly, and preserve room for change. 

Key Highlights:

• Cross-disciplinary product squads covering strategy, design, and build
• Experience delivering CMS-driven sites and web apps with custom integrations
• Attention to optimization, accessibility, and continued iteration
• Work that spans web and mobile while sharing common services and data flows 

Services:

• Enterprise web application design and engineering
• Web CMS implementation with integration to internal platforms
• API and data platform work to support web features and workflows
• Performance testing, accessibility audits, and release engineering 

Contact Information:

• Website: waracle.com
• E-mail: marketing@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

Hedgehog lab runs a dedicated web app development practice focused on solving complex product needs with maintainable code and straightforward delivery. Service pages highlight tailored builds for interactive applications, supported by discovery, UX, and engineering that keep the stack coherent as features expand. The team references work where the web layer fronts domain services, with careful attention to speed, reliability, and long-term upkeep. 

Technology coverage includes mainstream enterprise stacks and frameworks – Symfony for structured PHP backends, .NET for high-performance, cross-platform services, and related tooling for modern web architectures. That range enables a practical mix of server-side rendering, SPAs where appropriate, and API contracts designed to last beyond a single release cycle. Choices are framed around the product’s constraints rather than a single default stack. 

Recent work examples mention large-scale site upgrades that preserve brand voice while improving responsiveness and maintainability. The approach is incremental and measurable, which helps teams adopt new capabilities without disrupting users. As features evolve, the service layer and web front end are kept in step to prevent integration drift. 

Key Highlights:

• Dedicated web practice with discovery, UX, and engineering under one roof
• Framework depth across Symfony, .NET, and modern front-end patterns
• Focus on performance, maintainability, and predictable integration paths
• Track record of incremental upgrades to established web estates 

Services:

• Design and build of enterprise web applications and portals
• Backend development using Symfony or .NET with documented APIs
• Front-end engineering for interactive interfaces and SPA patterns
• System integration, performance tuning, and long-term support programs 

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: One Strawberry Lane, Newcastle Upon Tyne, NE1 4BX, UK
• Phone: 0333 2423132

Andersen builds enterprise web platforms that sit at the center of daily operations – employee and customer portals, role-aware dashboards, and service layers that keep data consistent across tools. The practice spans custom web development, PWAs and SPAs, and the engineering of API contracts that let front ends evolve without breaking integrations. Adjacent capabilities cover legacy modernization, so older estates move toward cloud patterns while preserving business logic. 

Key Highlights:

• Web portals and applications aligned to defined roles and workflows
• API integration and architecture support for line-of-business systems
• Modernization options alongside new builds to extend lifespan
• Quality engineering, DevOps, and security practices included in delivery 

Services:

• Enterprise web application design and build
• Progressive and single-page application delivery
• API engineering and integration with internal and third-party systems
• Legacy re-engineering and cloud migration with DevOps enablement
• Quality assurance and performance testing for web platforms 

Contact Information:

• Website: andersenlab.com
• E-mail: vn@andersenlab.com
• Facebook: www.facebook.com/AndersenSoftwareDev
• Twitter: x.com/AndersenLabs
• LinkedIn: www.linkedin.com/company/andersen-lab
• Instagram: www.instagram.com/andersen.global
• Address: 30 St Mary’s Axe, London, EC3A 8BF, UK
• Phone: +44 207 048 6755

Stakk operates as a product studio that designs and ships applications with an emphasis on clean architecture and measured iteration. The process is explicit – discover, develop, scale – and the service catalog includes web development alongside mobile and application work. Project materials reference e-commerce and other transactional workloads, where the web layer pairs with service logic and data pipelines. The tone is pragmatic: align interfaces with goals, ship in increments, adjust based on usage signals. 

Case examples point to programs like Nivoda in the commerce space, and the intake flow lists Web Application as a request type, which signals ongoing web delivery rather than one-off sites. Teams handle build and follow-through, from interface work to release planning and later optimization. The outcome tends to be a working product that can absorb new roles, permissions, and modules without a rewrite. 

Key Highlights:

• Product studio model with defined phases from discovery to scale
• Web development offered alongside mobile and app delivery
• Architecture-first approach for maintainable releases

Services:

• Design and build of web applications with role-based UX
• Component-driven front ends for SPA or multi-page setups
• Service-layer and third-party API integration for operations and analytics
• Performance, accessibility, and SEO grooming for production releases
• Release management, testing, and ongoing enhancement programs 

Contact Information:

• Website: stakk.co.uk
• LinkedIn: www.linkedin.com/company/stakk
• Instagram: www.instagram.com/stakkhq
• Address: 1-3 Worship Street, London, England, EC2A 2AB
• Phone: +44 20 3314 4040

Kuroit combines custom development with infrastructure services so web applications have a clear path from code to production. Engineering offerings cover mobile backends and APIs, PHP builds, and Laravel programs, plus migrations from other stacks. That mix is practical for portals that need a predictable services layer and straightforward maintenance paths. Teams also advertise site support and upkeep for long-running estates. 

On the operations side, managed hosting includes controls aimed at stability and security – CloudLinux for resource isolation, cPanel for administration, CageFS for filesystem separation, and a web application firewall with automated updates. Backups and PCI-oriented guidance are documented features, which helps when compliance or recovery procedures are part of the brief. The result is a deployment environment tuned for PHP-centric stacks without extra glue work. 

Scaling options extend to VPS and dedicated servers with DDoS protection and location choices, so workloads can move from shared resources to isolated capacity as usage grows. For enterprises that prefer gradual change, that path reduces the friction between new features and infrastructure adjustments. Configuration remains adjustable while the application footprint stays the same. 

Key Highlights:

• Combined build-and-host model for web estates
• PHP and Laravel depth plus API work for service layers
• Security features such as WAF, resource isolation, and scheduled backups

Services:

• Custom PHP or Laravel web application development
• Backend and API development for web and mobile clients
• Managed hosting with monitoring, WAF, backups, and update automation
• Stack migrations, refactoring, and sustained maintenance
• VPS or dedicated server provisioning for production environments 

Contact Information:

• Website: www.kuroit.com
• E-mail: hello@kuroit.com
• Facebook: www.facebook.com/kuroit.web
• LinkedIn: www.linkedin.com/company/kuroit
• Instagram: www.instagram.com/kuroit.web
• Address: 71-75 Shelton Street, London WC2H 9JQ, United Kingdom
• Phone: +91 99914 88020

Pulsion Technology builds web platforms that sit at the heart of day-to-day operations, from transactional portals to role-aware dashboards. The practice spans custom engineering, full-stack delivery, and quality assurance, with front ends talking to defined services and APIs. Project pages point to SaaS web applications, .NET and JavaScript expertise, and React-driven interfaces that stay quick under load. Work often includes modernising legacy estates and setting up cloud-ready deployments so future releases are easier to ship. 

Key Highlights:

• Focus on custom SaaS and enterprise-grade web builds
• API-first approach with attention to integration paths and reliability
• Modernisation and cloud adoption paired with automated testing
• Depth across .NET, JavaScript, and React for interactive interfaces 

Services:

• Design and development of enterprise portals and internal web systems
• API design, middleware engineering, and third-party integrations
• Legacy platform re-architecture and cloud-ready deployment
• Front-end builds in React with performance optimisation and QA automation

Contact Information:

• Website: www.pulsion.co.uk
• E-mail: info@pulsion.co.uk
• LinkedIn: www.linkedin.com/company/pulsion-technology
• Address: 5 Eagle Street, Craighall Business Park, Glasgow, G4 9XA
• Phone: +44 (0)141 352 2280

Geeks Ltd treats web applications as products that carry real workflows: browser-based platforms mapped to user roles, clean data flows, and measurable outcomes. Service pages describe custom web app delivery, full-cycle engineering, and integrations with CRM, ERP, accounting, and analytics tools. Discovery and VisualSpec prototyping help pin down scope before build, while testing and secure deployment keep releases steady. Modernisation and re-platforming show up alongside new development, which is useful when an existing stack needs a safe upgrade path. 

Case materials and service listings add more texture: bespoke ERP development for complex operations, AI integration where automation or insight helps, and mobile or other channels sharing the same service layer. Articles and insights reinforce the engineering-first stance, including guidance on web app benefits and sector-specific write-ups. The throughline is practical delivery with room to iterate. 

Key Highlights:

• Product-oriented approach with discovery, prototyping, and full-stack build
• Custom web apps aligned to roles, workflows, and security needs
• Modernisation and re-platforming capabilities for ageing systems
• Integrations spanning CRM, ERP, finance tools, and analytics 

Services:

• Custom web application design and engineering with SPA or PWA options
• Solution discovery, VisualSpec prototyping, and UX design for web programs
• System integration across CRM, ERP, accounting, and data platforms
• Software modernisation, re-platforming, and performance hardening 

Contact Information:

• Website: www.geeks.ltd
• E-mail: hello@geeks.ltd
• LinkedIn: www.linkedin.com/company/geeks-ltd
• Instagram: www.instagram.com/geeksltd
• Address: 6 Sutton Park Rd, Sutton, London, SM1 2GD, UK 
• Phone: 0203 507 0033