Most UK programs run on mixed architectures: some services stay close to critical systems, others scale in the cloud. That raises the bar for acceptance: end-to-end workflows, compatibility, observability, and support readiness must be proven. The outlook for hybrid cloud solutions is clear enough: more multi-cloud patterns, stronger security and automation requirements, and broader use of FinOps and platform engineering. UAT becomes the gate that keeps those changes safe in production.
Choosing the partner. The last mile is expensive to get wrong, so you want vendors who are fluent in both hybrid infrastructure and user acceptance: formalising criteria, running UAT sessions, preparing data and environments, routing defects, and packaging concise, defensible evidence. This guide covers the best hybrid cloud solutions companies operating in the UK, along with teams that support UAT and business readiness. It doesn’t rank them – it helps you narrow the field based on practice, not promises.
1. A-Listware
At a-listware.com, we provide hybrid cloud solutions in the United Kingdom, and we work with customers in the United Kingdom. Our work blends public cloud services with existing platforms so teams can move workloads gradually, keep data routes clear, and apply the same policies wherever apps run. That includes design, implementation, and day-2 operations across mixed estates, with a practical focus on observability, access controls, and cost governance. When healthcare or finance teams need some things close to home and other parts elastic, we map the split and wire it together so it behaves like one environment.
We also support migration projects that already have moving parts. Some clients ask for managed operations after go-live, others want a short burst of platform engineering to standardize landing zones and pipelines. Either way, our role is to reduce friction – connect networks, align identity and security, and give platform teams a clean view of what’s running. From there, optimization becomes routine rather than a special event.
Key Highlights:
- Hybrid estate planning with governance, monitoring, and access controls in one model
- Workload placement that balances performance, risk, and spend
- Operations support for public, private, and on-prem platforms without lock-in language
- Active collaboration with UK customers for build and run work
Services:
- Hybrid architecture design and roadmap with workload placement guidance
- Build of landing zones, network connectivity, and identity integration across providers
- Application modernization paths that include containerization and refactoring where it helps
- Unified observability, backup and recovery patterns, and security policy enforcement
- Managed operations with cost optimization, scaling routines, and incident handling
Contact Information:
- Website: a-listware.com
- Email: info@a-listware.com
- Facebook: www.facebook.com/alistware
- LinkedIn: www.linkedin.com/company/a-listware
- Address: St. Leonards-On-Sea, TN37 7TA, UK
- Phone Number: +44 (0)142 439 01 40
2. HCLTech
HCLTech works across multiple layers of digital transformation, but its cloud-related practice is where many clients turn first. The company builds and manages hybrid environments that combine on-premise assets with public and private cloud infrastructure. This isn’t only about hosting – it stretches into orchestration, monitoring, and application modernization so that legacy systems can run side by side with new deployments. HCLTech often steps in when organizations need continuity while shifting workloads or when regulatory demands require both local storage and cloud elasticity.
Its teams also help with long-term planning: aligning hybrid strategies with business processes, setting up automated governance, and applying security standards across distributed systems. By connecting data pipelines and applications that otherwise sit in silos, HCLTech creates a setup that can scale in steps instead of forcing a sudden overhaul. Clients looking for stability during cloud migration usually end up here, since the company is used to dealing with complex, high-stakes transitions.
Highlights:
- Blend of on-premise and cloud expertise
- Experience in managing large-scale workload transitions
- Structured frameworks for hybrid governance
Services include:
- Design of hybrid cloud strategies
- Implementation of orchestration and monitoring solutions
- Integration of legacy applications into cloud environments
- Security and compliance management across multi-cloud systems
Contact Information:
- Website: www.hcltech.com
- Facebook: www.facebook.com/HCLTechOfficial
- Twitter: x.com/hcltech
- LinkedIn: www.linkedin.com/company/hcl-technologies
- Instagram: www.instagram.com/hcltech
- Address: Office No. 01-117, First Floor, 1 Poultry, London EC2R 8EJ, United Kingdom EC2R 8EJ
3. Atos
Atos is positioned around digital infrastructure services, with a strong emphasis on making cloud ecosystems manageable for enterprises that run critical operations. Its hybrid cloud practice covers consulting, setup, and long-term operation, bridging multiple platforms so that organizations can flexibly choose where to place their workloads. This flexibility matters in industries where performance and compliance must both be respected, and Atos has put considerable focus into frameworks that account for these tensions.
The company doesn’t just provide a toolkit – it helps organizations define what should live in the cloud and what should remain closer to home. That includes migration roadmaps, cost management strategies, and cross-platform monitoring to reduce fragmentation. Many of its solutions center around automation: self-healing systems, predictive scaling, and standardized security controls across distributed environments. By emphasizing resilience and continuity, Atos enables clients to keep critical processes running while experimenting with new digital services in the cloud.
Key points:
- Hybrid designs tailored to compliance-heavy industries
- Focus on automation to simplify cross-platform management
- Structured approach to cost optimization in cloud use
What they offer:
- Advisory and consulting for hybrid infrastructure planning
- Development of multi-platform migration paths
- Automation of scaling and monitoring functions
- Governance frameworks for compliance and risk control
Contact Information:
- Website: atos.net
- Facebook: www.facebook.com/Atos
- Twitter: x.com/atos
- LinkedIn: www.linkedin.com/company/atos
- Instagram: www.instagram.com/atosinside
- Address: MidCity Place 71 High Holborn London WC1V 6EA
- Phone: 0800 783 3040
4. Accenture
Accenture operates as a broad digital services provider, but its hybrid cloud work forms a backbone for many of the transformation projects it leads. The company helps clients rethink infrastructure by mixing private setups with public cloud resources, a move that balances scalability with control. Often, the projects begin with an assessment of existing assets and gradually unfold into managed environments where old and new systems coexist without conflict. This approach keeps businesses from being locked into a single vendor while also reducing the friction of moving workloads around.
What sets Accenture apart is the scale of ecosystems it touches. Its teams don’t only migrate servers – they redesign application landscapes so that workloads are cloud-ready from the inside out. That means replatforming legacy apps, building cloud-native microservices, and enabling data sharing across multiple business units. Each stage of the process is built with sustainability in mind, not just in the environmental sense but in terms of cost and long-term maintainability.
The firm also focuses heavily on partnerships with cloud providers. This creates ready-made templates for industries such as finance, healthcare, and manufacturing where compliance and speed to market are both priorities. By combining advisory roles with hands-on delivery, Accenture ensures that hybrid deployments aren’t just theoretical architectures but systems that keep running day after day under real operational pressure.
What makes them unique:
- Broad ecosystem coverage with cross-industry expertise
- Cloud-native development alongside infrastructure modernization
- Partnership-driven approach with major cloud vendors
Their focus areas:
- Migration and modernization of enterprise applications
- Cloud-native software engineering and microservices design
- Governance and compliance integration across hybrid environments
- Ongoing managed services for distributed IT landscapes
Contact Information:
- Website: www.accenture.com
- Address: Runway East Temple Meads, 101 Victoria Street, Bristol, Bristol City, United Kingdom, BS1 6PU
- Phone: +44 117 287 23 44
5. Capgemini
Capgemini runs large-scale cloud initiatives that often start with mapping what should stay close to core systems and what can move to public platforms. The hybrid work ties together orchestration, observability, and modernization so applications can operate across environments without breaking routines or compliance rules. Engagements typically include readiness assessments, integration plans, and a governance layer that keeps cost, performance, and security aligned as workloads shift.
What makes them stand out:
- Hybrid planning that joins assessment, migration, and day-2 operations
- Single-pane management with automation for provisioning and monitoring
- Structured guardrails for cost, resilience, and security
- Option sets for multi-cloud and platform choices without lock-in
Core offerings:
- Hybrid architecture design and roadmap creation
- Workload migration with remediation and testing
- Unified monitoring, observability, and consumption management
- Security and compliance controls across platforms
Contact Information:
- Website: www.capgemini.com
- Facebook: www.facebook.com/CapgeminiUK
- LinkedIn: www.linkedin.com/company/capgemini
- Instagram: www.instagram.com/capgemini_uk
- Address: 95 Queen Victoria Street, London, EC4V 4HN, UK
- Phone: 0330 588 8000
6. Deloitte
Deloitte helps organizations assemble a mix of private, public, and edge resources that behaves like one estate. The work spans discovery of current assets, target-state design, and the engineering required to connect networks, identity, and data paths across vendors. Projects typically fold in automation and platform engineering so teams can scale services and reduce toil while keeping policy in one place. The firm’s material focuses on hybrid-by-design patterns and the infrastructure needed to run modern applications alongside existing systems.
Another emphasis is application change. Deloitte’s teams refactor or replatform software so workloads make real use of cloud services, not only new hosting. Partnerships with major providers supply reference architectures and landing zones that speed up delivery in regulated sectors. The result is a managed setup where cost, performance, and governance are measured and tuned rather than guessed.
Why people choose them:
- Hybrid designs that connect on-prem, cloud, and edge with consistent controls
- Application modernization paired with infrastructure engineering
- Automation-first operations for scale and resilience
- Reference architectures and accelerators from provider alliances
What they offer:
- Discovery and planning for hybrid target states
- Migration paths with network, identity, and security integration
- Platform engineering and automation for operations
- Governance frameworks for cost, risk, and compliance
Contact Information:
- Website: www.deloitte.com
- Facebook: www.facebook.com/deloitteuk
- Twitter: x.com/deloitteuk
- LinkedIn: www.linkedin.com/company/deloitte
- Address: 1 New Street Square London, EC4A 3HQ, United Kingdom
- Phone: +44 (0)20 7936 3000
7. CGI
CGI approaches hybrid operations with Unify360, a platform that gives a consolidated view of assets across cloud and traditional estates. The toolset supports brokering, operating, and governing services, with dashboards for spend, availability, and incidents, plus catalog-driven provisioning. Many deployments add policy-based management and self-remediation to lower manual effort while keeping transparency on SLAs and request success rates.
Delivery usually involves a multidisciplinary DevOps squad. That team configures integrations, builds automations, and shapes reports that reflect how services actually run day to day. The idea is simple enough – put control, observability, and routine actions in one place so platform teams can move faster without losing oversight.
Beyond the platform, CGI provides advisory, migration, and managed services for programs that want a staged transition. Guidance covers strategy, application readiness, and workload placement, followed by operations that blend cloud services with existing infrastructure. Public material highlights single-portal management, cost transparency, and compliance features that span multi-vendor estates.
Why they’re worth checking out:
- Consolidated control plane for mixed estates with real-time views
- Automation patterns for provisioning, patching, and incident handling
- Policy and SLA transparency to track outcomes
Their services include:
- Hybrid estate assessment and strategy
- Workload migration and brokering across cloud providers
- Managed operations with monitoring, cost control, and compliance
Contact Information:
- Website: www.cgi.com
- Facebook: www.facebook.com/cgigroup
- Twitter: x.com/cgi_global
- LinkedIn: www.linkedin.com/company/cgi
- Address: The Kelvin Suite 202 17-25 College Square East, Belfast BT1 6DE, UK
- Phone: +44 (0)20 7637 9111
8. Fujitsu
Fujitsu focuses on stitching together private platforms, public clouds, and existing on-prem systems so workloads can move without drama. The hybrid model here is practical – right cloud for the right job, unified monitoring, and policy controls that span environments. Engagements usually start with assessment and planning, then move into orchestration, observability, and resilience work so applications keep running while estates evolve. Tooling and services cover cost control and governance, plus options such as pay-per-use and standardized landing zones. The aim is a single operating view where data and apps live across locations yet feel coordinated to the teams that run them.
Highlights:
- Unified operations across on-prem, private, and public cloud
- Workload placement guided by performance, cost, and compliance needs
- Options for staged migration rather than big-bang moves
Services include:
- Hybrid strategy and assessment with roadmap definition
- Orchestration, monitoring, and platform engineering for mixed estates
- Application integration and modernization aligned to target platforms
- Security, policy, and cost management spanning multi-cloud tools
Contact Information:
- Website: global.fujitsu
- Facebook: www.facebook.com/fujitsuICT
- Twitter: x.com/fujitsu_global
- LinkedIn: www.linkedin.com/company/fujitsu
- Instagram: www.instagram.com/fujitsu.global
- Address: Lovelace Road Bracknell RG12 8SN, United Kingdom
- Phone: +44 (0) 1235 797770
9. IBM
IBM centers hybrid cloud on platform consistency, using Red Hat OpenShift to keep deployment and operations the same across providers. Work starts with target-state design and application discovery, then adds container platforms, CI/CD pipelines, and runtime security controls so teams can iterate quickly. The company’s material highlights managed OpenShift services that reduce operational load while supporting portability and governance. Alongside infrastructure work, modernization efforts bring older services onto containerized or virtualized footprints to reduce drift.
Recent updates emphasize OpenShift Virtualization on IBM Cloud, letting organizations run VM and container workloads side by side on a single managed platform. That option helps with gradual migration, especially where certain systems must remain as VMs for a while. Documentation points to built-in observability and policy features that smooth multi-cloud operations and security. The net effect is an estate that keeps familiar controls while opening a path to cloud-native services.
Why they stand out:
- Platform consistency via OpenShift across providers
- Managed services to reduce toil while maintaining governance
- Modernization patterns for both container and VM workloads
- Reference architectures and docs that speed setup and scaling
Their focus areas:
- Hybrid target-state planning and application assessment
- Container platforms with CI/CD, security, and observability
- OpenShift Virtualization for coexisting VM and container workloads
- Ongoing managed operations and cost controls across estates
Contact Information:
- Website: www.ibm.com
- Twitter: x.com/ibm
- LinkedIn: www.linkedin.com/company/ibm
- Instagram: www.instagram.com/ibm
- Address: Building C IBM Hursley Office Hursley Park Road Winchester Hampshire
- SO21 2JN
- Phone: +44 (0) 23 92 56 1000
10. Wipro
Wipro frames hybrid cloud as a moving capability rather than a fixed destination. FullStride Cloud Services brings advisory, migration, and run services together, then layers automation and dashboards so platform teams see what is happening in real time. Partnerships with major vendors add ready patterns for placement, brokering, and lifecycle management, which helps when estates span several providers. The language around cost and sustainability shows up often, usually tied to consumption controls and optimization routines.
Standout qualities:
- Operational view of multi-cloud estates with automation hooks
- Partnership-driven accelerators for faster rollout
- Policy and cost transparency built into run services
- Guidance that treats hybrid as an adaptable operating model
What they offer:
- Advisory and planning for mixed cloud placement
- Migration and refactoring supported by reference architectures
- Operations via ServiceNXT COC with catalogs and policy actions
- Optimization for spend, performance, and resilience across providers
Contact Information:
- Website: www.wipro.com
- E-mail: info@wipro.com
- Facebook: www.facebook.com/WiproLimited
- LinkedIn: www.linkedin.com/company/wipro
- Instagram: www.instagram.com/wiprolimited
- Address: Kings Court, 185 Kings Road, Reading, Berkshire RG1 4EX
- Phone: 44 (118) 229 1300
11. Computacenter
Computacenter brings hybrid estates under one operating model, linking private platforms and public clouds with tooling for orchestration, policy, and visibility. Work typically starts with platform design and readiness, then moves into managed run services so teams can place workloads where they fit best without losing control of cost or security. Reference frameworks cover multi-cloud networking, observability, and governance, which keeps day-2 operations predictable while environments evolve. The portfolio ranges from data center modernization and private cloud buildouts to cloud security and automation, with options to standardize landing zones and deployment patterns.
What they do well:
- Hybrid platforms shaped around placement, policy, and observability
- Patterns for multi-cloud networking and standardized deployments
- Governance for cost, resilience, and compliance across estates
Services include:
- Hybrid architecture and roadmap definition
- Multi-cloud networking design with automation and policy controls
- Modernization of data center platforms and application integration
- Cloud security assessment, controls implementation, and continuous monitoring
Contact Information:
- Website: www.computacenter.com
- E-mail: Tell.Us@computacenter.com
- Twitter: x.com/Computacenter
- LinkedIn: www.linkedin.com/company/computacenter
- Phone: +44 170 763 10 00
12. NTT DATA
NTT DATA frames hybrid as a platform strategy supported by automation, integration, and clear observability across providers. Public material points to cloud platform services that span advisory, build, and managed run, plus blueprints for container platforms and landing zones. Guidance focuses on workload placement, continuity, and financial stewardship so teams can scale services while keeping a grip on spend and risk. The result is a mixed estate that behaves like one platform from a management point of view.
A second thread addresses specific use cases: GenAI infrastructure laid over hybrid estates, FinOps extended to private and on-prem components, and migration factories that move virtualized workloads without a complete re-architecture. Thought leadership pieces and partnership updates add detail around confidential cloud setups and sustainability considerations, which helps in regulated settings and long-running programs. Delivery then folds back into managed operations that tune cost and performance over time.
Why people choose them:
- Hybrid designs with automation, integration, and end-to-end observability
- Extensions of FinOps to private and on-prem environments
- Reference architectures for containers, landing zones, and confidential cloud
- Migration factories for virtualized workloads with continuity in mind
What they offer:
- Advisory and target-state planning for mixed estates
- Cloud platform engineering with CI/CD, security, and monitoring
- GenAI-ready infrastructure layered across public, private, and edge
- Managed operations with continuous optimization for cost and performance
Contact Information:
- Website: uk.nttdata.com
- Twitter: x.com/NTT_DATA_UK
- LinkedIn: www.linkedin.com/company/ntt-data-europe-latam
- Address: Epworth House 25 City Road London EC1Y 1AA, United Kingdom
- Phone: +44 (0) 20 3933 5500
13. Crayon
Crayon focuses on cloud adoption and day-2 operations, with an emphasis on cost control and practical migration paths. The cloud services portfolio covers assessments, modernization, and managed operations across major providers, so organizations can move workloads in stages and keep visibility on spend. Advisory content outlines decision points between hybrid and multicloud setups, which helps teams match platform choices to application needs rather than chasing trends.
Managed services wrap around the estate once it is in motion. Monitoring and administration span infrastructure, operating systems, databases, and selected applications, which reduces manual effort and keeps environments consistent as they scale. Migration capabilities target Azure, AWS, and GCP with planning, execution, and handover for ongoing run.
Standout qualities:
- Cost governance paired with staged migration and day-2 support
- Coverage across major providers with neutral guidance on platform fit
- Operations that include infrastructure through application layers
- Practical resources that explain hybrid versus multicloud choices
Their focus areas:
- Cloud assessments and modernization with workload placement advice
- Migration to Azure, AWS, and GCP with planning and execution
- Managed operations for infrastructure, OS, databases, and apps
- Optimization services that align spend, performance, and policy
Contact Information:
- Website: www.crayon.com
- E-mail: contactus.uk@crayon.com
- Facebook: www.facebook.com/CrayonITGroup
- Twitter: x.com/crayonit
- LinkedIn: www.linkedin.com/company/crayon-group
- Address: Wooburn Green HP10 0HH Buckinghamshire, UK
14. Softcat
Softcat knits together private platforms and public clouds so applications and data can sit where they run best, then manages the moving parts with policy, monitoring, and automation. The hybrid offer spans discovery and planning, build of standardised landing zones, and day-2 operations that cover cost control, resilience, and compliance. Work often includes multi-cloud operations across Azure, AWS, and GCP, with guardrails so platform teams can scale without losing oversight. Backup, recovery, and cyber-resilience are part of the baseline, alongside unified data management to reduce silos. The aim is steady change – modernise, migrate, measure, repeat – rather than risky big-bang moves.
Standout qualities:
- Hybrid governance and observability baked into the operating model
- Reference patterns for multi-cloud landing zones and orchestration
- Resilience features that pair backup, recovery, and security controls
Core offerings:
- Strategy and workload placement for mixed estates
- Build of landing zones with automation and policy
- Integrated backup, disaster recovery, and threat resilience
- Day-2 operations with monitoring, cost optimisation, and compliance
Contact Information:
- Website: www.softcat.com
- Twitter: x.com/Softcat
- LinkedIn: www.linkedin.com/company/softcat
- Instagram: www.instagram.com/softcat
- Address: Fieldhouse Lane, Marlow, Buckinghamshire, SL7 1LW, UK
- Phone: +44 330 912 1682
15. ANS
ANS treats hybrid as a working pattern rather than a destination, mixing public cloud services with dedicated or on-prem resources so workloads land where they make sense. The hybrid page spells out a pragmatic blend of Azure and AWS with owned platforms, tuned for security, performance, and value. eCloud VPC adds a managed layer aimed at high availability, useful when uptime and consistency matter more than constant redesign. Certifications and partner status underpin the model and bring ready-made patterns for build and run.
Operations are a big piece of the story. Managed cloud services cover the day-to-day – proactive optimisation, reliability work, and shared dashboards that show what is happening under load. Private cloud options remain on the table, supported by VMware expertise and migration playbooks, which helps teams move step by step without breaking existing services. For long programs, the Cloud Centre of Excellence provides a pool of platform skills that can be dialled up or down.
Why people choose them:
- Operational focus with automation and shared visibility
- Blueprints that speed builds across public, private, and owned platforms
- High-availability patterns for workloads that cannot wobble
Service mix:
- Advisory and target-state design for hybrid estates
- Migration and refactoring across Azure, AWS, and proprietary platforms
- Managed operations with optimisation, resilience, and cost controls
- Private cloud build and VMware-led transitions with eCloud VPC options
Contact Information:
- Website: www.ans.co.uk
- Facebook: www.facebook.com/ans.co.uk
- Twitter: x.com/ANSGroup
- LinkedIn: www.linkedin.com/company/ans-group-plc
- Address: 1 Archway Birley Fields Manchester M15 5QJ
- Phone: 0800 458 4545
Conclusion
The companies above work differently, yet the pattern repeats: deliberate workload placement, strong observability, automation, and releases backed by evidence. One more constant stands out – mature UAT as the final checkpoint before go live. When scenarios mirror real roles and results are captured, the shift to a hybrid model is less dramatic and far more predictable.
The takeaway is practical: a hybrid design must look good on a diagram and survive incidents, audits, and growth. A contractor with disciplined UAT and solid platform engineering gives you that resilience step by step. That choice saves weeks of forensics and lowers the risk of unplanned downtime. This is not about fashion – it is how you release changes predictably when systems are many and deadlines are close.
