15 Best Platform Integration Companies in the UK (2026)
UK businesses increasingly turn to specialist platform integration companies to connect their essential tools and systems without disruption. These agencies excel at creating smooth data flows between different platforms, helping organisations operate more efficiently while maintaining top-tier security and flexibility. With expertise in modern technologies, they support everything from legacy system updates to full-scale digital transformations that keep companies competitive in a fast-moving market.
What sets the top platform integration companies in the UK apart is their deep focus on delivering well-engineered solutions tailored to real business needs. They combine technical excellence with a genuine understanding of industry challenges, enabling enterprises and ambitious startups to achieve better automation, real-time insights, and future-ready architectures that scale effortlessly as they grow.
1. OSKI Solutions
OSKI Solutions delivers platform integration work for businesses across the UK. Our work connects different systems using .NET, Node.js, C#, and Python alongside databases such as SQL Server, PostgreSQL, MySQL, and MongoDB so data moves smoothly and operations run with less friction. We focus on practical solutions that fit the specific needs of the UK market, where companies often deal with a mix of legacy setups and modern tools that need to work together reliably.
OSKI Solutions builds custom connections with React, Angular, Vue.js on the front end and supports Azure, AWS, Docker, and Kubernetes for cloud environments. Our experience with various platforms helps clients in sectors like e-commerce, healthcare, and logistics reduce manual tasks and improve visibility across their operations. This kind of integration work makes it easier to adapt as requirements change in the UK business environment.
Key Highlights:
Focuses on connecting existing platforms and systems
Supports data exchange between different tools
Handles integration needs common in the UK market
Works with established technologies for reliable links
Services:
Platform integration
API integration
Legacy system modernization
Cloud migration
Custom software development
Contact Information:
Website: oski.site
Phone: +48571282759
Email: [email protected]
Address: Kaupmehe tn 7, 10114 Tallinn, Estonia
LinkedIn: www.linkedin.com/company/oski-solutions
Platform Integration in the UK
Connect your business systems for seamless data flow, improved efficiency, and reliable performance across platforms.
2. AlwaysIP
AlwaysIP specialises in integration solutions that connect various business tools into one smooth ecosystem. The company focuses on making different systems work together so teams in London and beyond can operate with less manual effort and better communication. They handle cloud integrations, API connections, and unified communication setups that link up CRMs, ERPs, helpdesks, and collaboration platforms like Office 365.
The agency offers AI-powered features such as text to speech, voicemail transcription, call transcription, and call summaries that turn conversations into usable insights. AlwaysIP also supports omnichannel messaging and specific integrations including hotel PMS systems, click to call functions, and contact syncing. Their approach centres on flexibility and practical improvements to daily workflows for businesses looking to streamline operations.
Key Highlights:
Connects CRMs, ERPs, and helpdesk platforms
Incorporates AI for transcription and call summaries
Supports unified communications and omnichannel messaging
Provides hotel PMS and click-to-call capabilities
Services:
System integration
Cloud phone system setup
API and business integration
AI text-to-speech and transcription
VoIP and collaboration tool connectivity
Contact Information:
Website: alwaysip.com
Phone: +44(0) 333 242 2336
Email: [email protected]
Address: Unit 2, Shri Heights, 3 Palmerston Road, Harrow, HA3 7JD, GB
LinkedIn: www.linkedin.com/company/alwaysip
Facebook: www.facebook.com/alwaysipofficial
Instagram: www.instagram.com/alwaysipofficial
3. Azilen
Azilen delivers integration and middleware solutions that link applications, data, workflows, and AI systems across enterprise environments in the UK. The company builds secure and scalable foundations that support real-time intelligence and automation while maintaining strong governance. They work with complex setups to create reliable connectivity that fits modern business needs.
The agency handles API management, enterprise system integration, and middleware modernization along with event-driven architecture and open banking APIs. Azilen focuses on strategy-first delivery that ensures compliance, reduces risks, and prepares data flows for AI use. Their work helps organisations achieve consistency, better data quality, and smoother processes across platforms.
Key Highlights:
Builds secure API ecosystems with governance
Modernises middleware and legacy systems
Supports event-driven and real-time architectures
Enables AI-ready data pipelines
Delivers cloud and iPaaS expertise
Services:
API management and governance
Enterprise system integration
Middleware modernization
Open banking integrations
Data flow orchestration
Contact Information:
Website: www.azilen.co.uk
Phone: +44-203-773-1252
Email: [email protected]
Address: 71-75 Shelton Street, Covent Garden, London, United Kingdom, WC2H 9JQ
LinkedIn: www.linkedin.com/company/azilen-technologies-pvt-ltd
Facebook: www.facebook.com/AzilenTechnologies
Twitter: x.com/AzilenTech
Instagram: www.instagram.com/azilentech
4. 21century.tech
21century.tech builds production software using an AI-augmented approach where senior engineers pair with AI models on tasks. The company focuses on architecture, design, code review, and accountability while AI handles code generation, boilerplate, and documentation. They deliver MVPs and features with human-reviewed quality and full ownership.
The agency works with product specifications or designs to align on scope before building with daily demos and production-grade elements like CI/CD and tests. 21century.tech deploys to client infrastructure and maintains a process that accelerates delivery while keeping senior oversight. The company ships refactors and integrations through this combined human and AI method.
Key Highlights:
Uses AI for code generation and testing
Maintains human architecture decisions
Delivers with daily demos and reviews
Supports deployment and iteration
Services:
AI-augmented software development
MVP and feature building
Code review and QA
Integration work
Contact Information:
Website: 21century.tech
Email: [email protected]
5. MPED
MPED works as an integration partner for UK teams that need better data flow between business platforms and fewer manual processes. The company designs and delivers connections with systems such as HubSpot, NetSuite, Xero, QuickBooks, Companies House, and Creditsafe. They focus on practical delivery that improves operational reliability and supports compliance-sensitive environments.
The agency covers CRM and customer platform integrations, finance and ERP connections, public data services, and workflow automation. MPED handles real-time sync, API implementation, and ongoing optimisation so businesses can trust their data movements. Their partner-led approach combines architecture, delivery, and support for evolving requirements.
Key Highlights:
Connects CRM, ERP, and accounting platforms
Supports compliance and public data integrations
Delivers workflow automation and real-time sync
Extends into cloud and AI-related work
Services:
Platform integration delivery
API design and implementation
Finance system connections
Compliance data handling
Workflow routing and automation
Contact Information:
Website: mped.co.uk
Email: [email protected]
Address: 167-169 Great Portland Street, London, England, W1W 5PF
6. net-devs
net-devs delivers enterprise software development with senior engineers leading AI-augmented teams. The company builds production-grade systems across .NET, JVM, Node, Python, and Go while maintaining SOLID principles and tested-by-default standards. They integrate practical AI into products and delivery workflows with human oversight on architecture and quality.
The agency handles cloud-native architecture on Azure, AWS, and GCP along with modern front-end development using React, Angular, and Vue with TypeScript. net-devs follows a process that includes discovery, design, AI-augmented build, testing, and deployment with ongoing iteration. The company emphasises transparent pricing and senior ownership at every step of delivery.
Key Highlights:
Builds enterprise development systems
Integrates AI engineering practices
Supports cloud and platform work
Delivers modern front-end solutions
Services:
Enterprise software development
AI engineering
Cloud architecture
Front-end development
Contact Information:
Website: net-devs.com
Phone: +48 571 282 759
Email: [email protected]
Address: Obrzeżna 1D, 02-691 Warszawa
LinkedIn: www.linkedin.com/company/net-devs
7. Chetu
Chetu provides system integration solutions that help businesses overcome challenges when connecting existing applications with new technologies. The company designs automated data integration services using ETL practices and ensures complete data integrity during transfers. They facilitate seamless communication between mission-critical platforms including CMS, accounting, ERP, CRM, and business intelligence tools.
The agency specialises in API integrations with platforms like Azure and MuleSoft while developing service-oriented architectures that promote reusability and interoperability. Chetu supports enterprise application integrations and offers additional capabilities in application development, maintenance, and quality assurance. Their engineers handle everything from architecture design through to testing and execution.
Key Highlights:
Merges data across disparate applications
Facilitates enterprise application communications
Integrates custom and third-party APIs
Builds service-oriented architectures
Services:
Data integration
Enterprise application integration
API integration
Systems consolidation
Architecture design and deployment
Contact Information:
Website: www.chetu.com
Phone: +44 137 243 2466
Email: [email protected]
Address: 83 Hagley Road, Part 1 First Floor, Birmingham, B168QG United Kingdom
LinkedIn: www.linkedin.com/company/chetu-inc-
Facebook: www.facebook.com/ChetuInc
Twitter: x.com/ChetuInc
8. World One Automation
World One Automation offers system integration services in the UK that connect IT systems, applications, and data sources into unified environments. The company helps organisations improve efficiency and streamline workflows across various industries and sectors. They manage projects of different scales with the expertise to handle both simple and complex integration needs.
The agency provides a comprehensive range of solutions designed to coordinate systems and enhance overall operations. World One Automation focuses on creating seamless setups that support better productivity and customer experiences. Their work centres on practical coordination of technology to meet specific business requirements.
Key Highlights:
Connects multiple IT systems and data sources
Streamlines workflows and processes
Supports different industries and project scales
Services:
System integration
Application connectivity
Data source coordination
Workflow optimisation
Contact Information:
Website: worldoneautomation.com
Phone: +44 7867 544 372
Email: [email protected]
Address: 71-75 Shelton Street, Covent Garden, London WC2H 9JQ
Linkedin: www.linkedin.com/company/world-one-automation
9. NetMonkeys
NetMonkeys delivers system integration services that connect disparate IT systems into a cohesive operation. The company links software applications, platforms, and data to eliminate silos and improve data flow across business processes. They work with modernising legacy systems, connecting cloud and on-premise solutions, and automating workflows with minimal disruption to daily activities.
The agency provides software systems integration, IT systems integration, custom integration solutions, legacy system integration, and cloud and on-premise bridging. NetMonkeys also handles API interface integration to enable seamless communication between different software. Their specialists focus on bringing together ERP, CRM, finance, HR, and cloud-based tools into one streamlined ecosystem.
Key Highlights:
Connects business applications and software platforms
Bridges cloud and on-premise environments
Supports legacy system modernisation
Implements API integrations for connectivity
Services:
Software systems integration
IT systems integration
Custom integration solutions
Legacy system integration
API interface integration
Contact Information:
Website: netmonkeys.co.uk
Phone: 0161 834 9345
Email: [email protected]
Address: NorthStar, 135-141 Oldham St, Manchester M4 1LN
LinkedIn: www.linkedin.com/company/netmonkeys-ltd
Twitter: x.com/NetMonkeys
10. System Software
System Software designs and builds integrations that connect the systems organisations already use. The company reduces duplicate work and improves operational visibility by focusing on data ownership, timing, validation, exceptions, and dependent workflows. They start with business processes before selecting appropriate technical patterns.
The agency follows a structured approach that includes discovery, architecture, validation, implementation, and ongoing operation of integrations. System Software works with ERP, CRM, WMS, and finance platforms to create consistent information and faster workflows. Their solutions support better reporting, analytics, and foundations for automation.
Key Highlights:
Connects core operational platforms
Defines data ownership and validation rules
Uses API, event, and middleware patterns
Supports operational visibility and workflows
Services:
System integration design
ERP and CRM connections
Data architecture and validation
Workflow support
Contact Information:
Website: www.systemsoftware.uk
11. Vega IT
Vega IT designs and delivers scalable enterprise integrations that connect core systems and enable real-time data flow. The company works across complex digital ecosystems to turn disconnected platforms into a reliable foundation. They handle system integration consulting, enterprise system architecture, and API design and integration.
The agency supports industries including FinTech, InsurTech, HealthTech, and Retail through custom integrations and architecture. Vega IT bridges modern platforms, custom tools, and legacy infrastructure while using tools like MuleSoft and Boomi for complex orchestration. Their teams focus on performance, security, and long-term maintainability in integration projects.
Key Highlights:
Connects core enterprise systems
Designs integration architectures
Builds and integrates APIs
Supports real-time data synchronisation
Services:
Enterprise system integration
System integration consulting
API design and integration
Architecture planning
Contact Information:
Website: www.vegait.co.uk
Phone: +44 7966 980235
Email: [email protected]
Address: 60 Cannon Street, London EC4N 6NP
LinkedIn: www.linkedin.com/company/vega-it-sourcing
Facebook: www.facebook.com/VegaITSourcing
Instagram: www.instagram.com/vega_it
12. Logic Racks
Logic Racks builds API integrations that connect SaaS tools so data moves automatically between systems like CRMs, finance, e-commerce, and shipping platforms. The company addresses issues such as staff re-keying data and inconsistent reports by creating clean flows for orders, customers, invoices, and stock. They handle full SaaS stacks including legacy and edge cases.
The agency uses technologies like Node.js, Python, AWS Lambda, and n8n for production-grade integration engineering. Logic Racks offers options from single integrations to multi-system setups and managed platforms. Their work focuses on stitching systems into one reliable flow while maintaining compliance and ownership of the code.
Key Highlights:
Connects CRMs, finance, and e-commerce platforms
Handles payment and shipping integrations
Manages legacy systems and custom cases
Provides monitoring and maintenance options
Services:
API integration
SaaS stack connectivity
Data flow automation
Integration platform management
Contact Information:
Website: logicracks.co.uk
Phone: +44 1782 446544
Email: [email protected]
Address: Jaguar House, Victoria Square, Stoke-on-Trent, ST1 4JH
13. MultiWebMarketing
MultiWebMarketing provides API integration services to connect websites with other platforms and centralise data flow. The company links websites to CRMs, payment gateways, order management platforms, and stock systems across the UK. They handle both custom API development and pre-built plugin integrations for WordPress and WooCommerce setups.
The agency focuses on creating secure connections that enable smoother workflows and better data accuracy. MultiWebMarketing works with third-party APIs for vehicle lookups, recruitment job boards, and inventory management. The company ensures authentication, encryption, and error handling follow industry practices during integrations.
Key Highlights:
Connects websites to CRMs and payment gateways
Supports stock and inventory synchronisation
Handles vehicle database and job board integrations
Uses custom and plugin-based approaches
Services:
API integration
CRM connections
Payment gateway setup
Inventory management links
Custom development for WordPress
Contact Information:
Website: www.multiwebmarketing.co.uk
Phone: 01302 590 444
Email: [email protected]
Address: Marketing House, Manor Way, Askern, Doncaster, DN6 0AJ
LinkedIn: www.linkedin.com/company/multiwebmarketing
Facebook: www.facebook.com/MultiWebMarketing
Twitter: x.com/multiwmarketing
Instagram: www.instagram.com/multiwebmarketing
14. Audacia
Audacia handles systems integration projects that connect core business platforms like ERP, CRM, finance, and eCommerce systems. The company works on both commercial off-the-shelf and bespoke solutions to support real-time data updates for reporting and decision making. They begin with discovery sessions to map workflows and APIs.
The agency delivers data warehousing as a central repository and uses tools across the Power Platform for integrations. Audacia develops proof of concepts and custom dashboards for monitoring system links and audit history. The company supports industries such as manufacturing, construction, energy, and healthcare through these integration efforts.
Key Highlights:
Integrates ERP and CRM platforms
Supports finance and project management systems
Delivers data warehousing solutions
Creates custom dashboards for monitoring
Services:
Systems integration
CRM integration
ERP integration
Data warehousing
Workflow mapping
Contact Information:
Website: audacia.co.uk
Phone: 0113 543 1300
Email: [email protected]
Address: 46 The Calls, Leeds, West Yorkshire, UK, LS2 7EY
LinkedIn: www.linkedin.com/company/audacia-consulting
Facebook: www.facebook.com/AudaciaTechnology
15. SoftPro
SoftPro offers software development services for reliable and functional solutions tailored to business needs. The company builds complex applications that automate processes and improve efficiency. They focus on web application development with custom solutions that are user-friendly and scalable.
The agency specialises in cloud development for scalable and secure environments that support integration and high-performance computing. SoftPro also works with artificial intelligence including predictive analytics and machine learning models to support data analysis and automation. The company uses technologies like Azure, ASP.NET, and .NET Core in their development work.
Key Highlights:
Develops custom software solutions
Creates web applications for operations
Provides cloud-based development
Implements artificial intelligence features
Services:
Software development
Web application development
Cloud development
Artificial intelligence solutions
Contact Information:
Website: soft-pro.pl
Phone: +48 571 282 759
Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401
LinkedIn: www.linkedin.com/in/kyrylo-o
Conclusion
Choosing the right platform integration company in the UK really comes down to how well they understand the mess of systems your business already runs on. Some agencies shine when it comes to clean data flows and real-time connections, while others bring solid experience with compliance-heavy setups or legacy modernisation. It’s worth taking time to look at their approach, because the difference between an integration that just works and one that actually makes life easier can be huge.
At the end of the day, a good partner doesn’t just connect the dots. They help you move faster, cut down on manual headaches, and set things up so you’re ready for whatever comes next. Whether you’re scaling up or simply tired of spreadsheets doing the heavy lifting, the UK has capable teams that can make it happen. Just make sure the fit feels right for where you are now and where you want to go.
