Cloud migration consulting in London
Steer73 is a world-class cloud migration consulting firm based in London, UK.
We help SMEs, mid-sized companies, and enterprise organisations plan, migrate, and manage their systems in the cloud faster, with less risk, and with a higher ROI than traditional consultancies.
We plan, launch and manage systems for
Why work with Steer73? A leading cloud migration consultancy in London
We help organisations plan, migrate, and manage their systems in the cloud without the cost, disruption, or risk of failure typically associated with complex cloud migration projects.
As a leading cloud migration consulting firm in London, we combine a deep understanding of enterprise operations with the latest in cloud technology and best practice to deliver secure, scalable, high-performance environments. We’ve worked with a wide range of companies, from SMEs to global enterprises, helping them modernise critical systems and unlock the full value of the cloud.
Leveraging over a decade of experience in large-scale system delivery, we guide clients from initial assessment through to migration, optimisation, and ongoing management, ensuring every project achieves the right balance of cost, performance, and business continuity.
We have never had a failed migration at Steer73, and we typically form long-term partnerships with our clients as we continue to monitor, optimise, and evolve their cloud systems for years to come.
Cloud migration discovery (free service)
A free project designed to take you from initial challenges to a clear plan, mapping out exactly how to migrate your systems to the cloud in the fastest, safest, and most cost-effective way.
We don’t push cloud migration for the sake of it. Our free discovery engagement helps you understand where the real value lies: which systems should move, which should stay, and how to modernise your infrastructure to improve performance, security, and scalability.
The result is a clear, low-risk migration roadmap that shows you exactly how to achieve business value from the cloud, before you commit to a full project.
Fully managed cloud migration
A complete, end-to-end migration service that moves your data, applications, and systems to the cloud — securely, seamlessly, and with minimal to zero downtime.
From initial planning and architecture design through to data migration, environment setup, testing, and go-live, we handle every stage with precision. Our proven methodology ensures business continuity throughout the process, with rollback strategies, staged cutovers, and rigorous validation at each step.
We manage complex workloads, legacy systems, and multi-cloud environments with a guaranteed process.
The result: a secure, high-performance cloud environment that’s ready for scale and delivered without disruption to your day-to-day operations.
Cloud data platform deployment
We design, build, and deploy modern data platforms, from data warehouses to data lakes and lakehouses, that give your business a single, trusted source of truth.
Our team can handle every stage of the process: architecture design, environment setup, data ingestion pipelines, and integration with your existing systems. Whether you’re moving from on-premise databases or modernising outdated cloud infrastructure, we ensure a smooth transition with zero data loss and minimal downtime.
We specialise in secure, high-performance platforms built on solutions such as Azure, designed for scalability, governance, and analytics-ready data.
The result is a unified, cloud-native data environment that empowers smarter decisions, faster insights, AI, and long-term business growth.
Hybrid cloud migration
For many organisations, a full move to the cloud isn’t practical. Our hybrid cloud migration service helps you modernise at your own pace, combining the flexibility of the cloud with the control of on-premise systems.
We design and implement hybrid architectures that allow seamless interoperability between environments, enabling secure data exchange, workload portability, and consistent performance across both on-premise and cloud platforms.
From connecting legacy ERP systems to modern SaaS applications, to deploying hybrid storage and backup solutions, we ensure every component works together reliably.
The result is a resilient, scalable environment that lets you leverage the best of both worlds, cloud agility without disrupting critical business operations.
Application replatforming & refactoring
Modernise your legacy applications to unlock the full benefits of the cloud, without rebuilding from scratch. Our replatforming and refactoring service transforms outdated systems into secure, scalable, cloud-native solutions that perform better and cost less to run.
We begin by analysing your existing applications to identify where replatforming (lift-and-optimise) or refactoring (code-level modernisation) will deliver the greatest ROI. Then, we redesign the architecture using best-practice cloud patterns such as containerisation, microservices, serverless functions, and automated CI/CD pipelines to improve reliability, performance, and maintainability.
Every change is tested, validated, and deployed using zero-downtime release strategies to ensure business continuity.
The outcome: a modern, future-proof application ecosystem that’s faster to evolve, easier to maintain, and ready for whatever comes next.
AI readiness & data modernisation
Most organisations want to leverage AI but their data isn’t ready for it. Our AI readiness service helps you understand what needs to change in your infrastructure, systems, and data to unlock real AI value.
We assess your current data landscape, identifying gaps in structure, quality, and accessibility that prevent effective AI adoption. From there, we design and implement a modern, cloud-based data architecture that centralises, cleans, and prepares your data for AI and analytics use.
Whether you’re building predictive models, deploying copilots, or exploring automation, we ensure your organisation has the foundations in place: unified data pipelines, secure integrations, and scalable cloud environments.
The result is a business that’s not just talking about AI, but ready to use it.
Our work
With a proven track record of delivering seamless cloud migrations for enterprise clients, medium-sized businesses, and SMEs, we’ve established ourselves as one of the leading cloud migration consulting firms in London.
Explore some of our recent cloud migration and modernisation projects below.
Migrating a business-critical, field-team management application to the cloud
Our client, a major construction firm, hosted a business-critical application used for the management of their field-based team on physical servers. With the servers approaching end of life and resiliency and reliability issues becoming common, Steer73 devised and executed a plan that resulted in a smooth cloud migration with zero downtime.
Why choose Steer73 for cloud migration consulting?
Guaranteed success
At Steer73, we pride ourselves on our flawless track record of delivering successful cloud migration projects for clients in London and around the world.
We’ve consistently exceeded expectations across industries by combining our proven delivery methodology, our proprietary Digital Transformation Platform, and our top-tier technical talent to execute migrations that go beyond simply moving systems, ensuring they’re optimised, secure, and deliver lasting business value.
Proven processes
Over the last 10 years, we have refined our processes, frameworks, technology, and expertise around planning, migrating, and managing cloud systems for enterprises and SMEs. Our ability to quickly understand business requirements, translate them into technical solutions, and help clients prioritise what to migrate and modernise ensures you always make the right decisions for your organisation. From there, we apply our industry-leading delivery methodologies to execute your cloud migration efficiently, securely, and on budget.
Maximizing ROI
Cloud migration is a strategic investment, and maximising your return on that investment is essential. We’re not just a technical implementation partner or cloud consultant, we’re a full-service digital transformation agency. We consider your business goals as well as your operational realities, performance needs, and long-term growth plans when designing your cloud environment. This dual focus allows us to deliver cloud solutions that not only run efficiently and securely but also drive measurable business impact.
London based, global team
While headquartered in London, UK, our team includes a diverse group of cloud specialists from seven other countries, bringing together global experience, deep technical expertise, and fresh perspectives that drive innovation. You benefit from working with a local partner supported by internationally recognised cloud architects, engineers, and consultants.
Faster, higher ROI solutions
With our Digital Transformation Platform, you get the speed, maturity and repeatability of a productised approach without sacrificing the flexibility of a custom implementation. This means you achieve results faster and maximise ROI from your enterprise cloud migration investment.
Meet us in London or give us a call
London office: Steer73 – Cloud migration agency in London
167-169 Great Portland St (5th Floor), London, W1W 5PF, United Kingdom
Phone number: +44 2038 550 237
Email: hello@steer73.com
Comprehensive cloud migration services
From initial assessment to ongoing optimisation, our London-based team provides a complete suite of cloud migration services, including:
Cloud strategy & consultation
Defining the optimal approach to achieve your business goals with minimal risk and maximum ROI.
Cloud architecture & planning
Designing secure, scalable, and high-performance environments tailored to your operations.
Data migration & integration
Moving critical data from legacy systems to the cloud with precision, validation, and zero data loss.
Application replatforming & refactoring
Modernising legacy software for efficiency, resilience, and long-term maintainability.
Security & compliance management
Implementing best practices for data protection, governance, and regulatory adherence.
Testing & validation
Ensuring system stability, data integrity, and performance throughout every stage of migration.
Our unique approach to cloud migration
Every cloud migration project is unique, so we tailor our approach to ensure smooth collaboration, full transparency, and a seamless transition to the cloud.
With a full in-house team of cloud architects, software engineers, data specialists, and project managers, we deliver end-to-end cloud migration services that are efficient, secure, and aligned with your business goals.
Strategy-led discovery and architecture design
Successful cloud migration starts with clarity. We begin every project with a detailed discovery phase to understand your systems, dependencies, and business objectives. Using our proven methodology and Digital Transformation Platform, we create a migration plan that eliminates risk, optimises performance, and aligns with your strategic goals.
Our cross-functional expertise in software development, data engineering, and AI gives us a unique ability to see the full picture, ensuring your cloud architecture not only works today but sets the foundation for long-term innovation.
Choosing the right cloud migration strategy
Every organisation’s systems, data, and risk profile are different, which is why choosing the right migration strategy is critical to success. We help you assess your technical, operational, and commercial priorities to identify the most effective approach for your business.
We typically draw from seven proven cloud migration strategies, ranging from phased migrations and hybrid approaches to parallel operations and big bang deployments. Each has distinct benefits in terms of speed, risk, and cost. Our role is to guide you to the approach that delivers a smooth transition with minimal disruption and maximum ROI.
Fast, secure migration with full transparency
Our Digital Transformation Platform enables us to plan and execute migrations faster, more securely, and more cost effectively than traditional consultancies—without compromise.
Every step of the migration process is transparent. You’ll have complete visibility into progress, key decisions, and risks through our structured delivery tools, regular updates, and collaborative workshops. Whether virtually, at our London office or on-site with your team. We guarantee a seamless transition with minimal downtime and zero data loss.
Beyond cloud migration services: A Partner for whatever comes next
For many organisations, cloud migration is only the first step in a wider digital transformation. Once your systems are securely running in the cloud, we can act as an ongoing partner to help you modernise, optimise, and evolve.
Whether it’s modernising legacy systems, adding new AI capabilities, or building out analytics that drive smarter decision-making, our team has the expertise to take your cloud foundation further.
With specialists across software development, data engineering, and AI, we are a your true digital partner.
Strategy-led discovery and architecture design
Successful cloud migration starts with clarity. We begin every project with a detailed discovery phase to understand your systems, dependencies, and business objectives. Using our proven delivery methodology and Digital Transformation Platform, we create a migration plan that eliminates risk, optimises performance, and aligns with your strategic goals.
Our cross-functional expertise in software development, data engineering, and AI gives us a unique ability to see the full picture, ensuring your cloud architecture not only works today but sets the foundation for long-term innovation.
Choosing the right cloud migration strategy
Every organisation’s systems, data, and risk profile are different, which is why choosing the right migration strategy is critical to success. We help you assess your technical, operational, and commercial priorities to identify the most effective approach for your business.
We typically draw from seven proven cloud migration strategies, ranging from phased migrations and hybrid approaches to parallel operations and big bang deployments. Each has distinct benefits in terms of speed, risk, and cost. Our role is to guide you to the approach that delivers a smooth transition with minimal disruption and maximum ROI.
Fast, secure migration with full transparency
Our Digital Transformation Platform enables us to plan and execute migrations faster, more securely, and more cost effectively than traditional consultancies, without compromise.
Every step of the migration process is transparent. You’ll have complete visibility into progress, key decisions, and risks through our structured delivery tools, regular updates, and collaborative workshops. Whether virtually, at our London office, or on-site with your team. We guarantee a seamless transition with minimal downtime and zero data loss.
Fast, secure migration with full transparency
Our Digital Transformation Platform enables us to plan and execute migrations faster, more securely, and more cost effectively than traditional consultancies—without compromise.
Every step of the migration process is transparent. You’ll have complete visibility into progress, key decisions, and risks through our structured delivery tools, regular updates, and collaborative workshops. Whether virtually, at our London office or on-site with your team. We guarantee a seamless transition with minimal downtime and zero data loss.
Beyond cloud migration services: A Partner for whatever comes next
For many organisations, cloud migration is only the first step in a wider digital transformation. Once your systems are securely running in the cloud, we can act as an ongoing partner to help you modernise, optimise, and evolve.
Whether it’s modernising legacy systems, adding new AI capabilities, or building out analytics that drive smarter decision-making, our team has the expertise to take your cloud foundation further.
With specialists across software development, data engineering, and AI, we are a your true digital partner.
Flexible pricing & engagement models
We understand that every organisation has unique governance structures, budget constraints, and project delivery requirements. That’s why we offer a range of flexible engagement models designed to align with your internal processes, whether you need a tightly controlled fixed-price project or an agile, long-term partnership.
Fixed price model
Ideal when scope and requirements are well-defined. We agree on a fixed cost and timeline upfront, ensuring predictability and clear governance. Fixed-price projects typically follow a Waterfall approach and include a formal change-request process for any variations in scope.
Time & materials
Best suited to projects with evolving requirements. You retain flexibility to adjust scope and priorities as the project progresses. Work is billed according to the time and effort invested, allowing for adaptive delivery while maintaining full transparency.
Managed service model
Our most flexible and cost-effective model for long-term enterprise engagements. A dedicated team works as your extended product development arm, delivering ongoing improvements, maintenance, and new features.
Here’s a closer look at how we deliver our cloud migration services
As a trusted technology partner, our cloud migration process is designed to deliver exceptional results at every stage, from initial assessment and planning to seamless migration, optimisation, and ongoing management.
1. Initial project assessment
We begin with a short call to understand your current infrastructure, business objectives, and technical requirements. This helps us assess your readiness for cloud migration and determine the best approach, whether that’s rehosting, replatforming, or rearchitecting, to meet your performance, security, and cost goals.
2. Scoping
During Scoping we are working out what you need to do, what are the limiting parameters and what questions we need to answer. (Output is at the feature level).
3. Solution definition
With the scope agreed, we begin designing a detailed cloud migration plan that defines exactly how the requirements from discovery will be delivered. This stage outlines the technical architecture, migration steps, data flows, and system behaviours at a granular level (output is at the task and user story level).
4. Implementation
Here’s where our cloud engineers and developers execute your migration. At this stage, the specification is clear, fixed, and ready for execution. We build and configure the cloud environments, migrate data and applications, and validate every component using proven frameworks and best practices.
5. UAT & launch
We manage the entire go-live process, from user acceptance testing to final deployment in your cloud environment. Our team coordinates every step to ensure a smooth, low-risk transition, validating data integrity, system performance, and user access before switching over.
6. Maintenance & support
After a successful migration, we remain on hand to support you with whatever you need, whether that’s ongoing security and risk monitoring, hosting and cost management, or modernising systems as your business evolves.
Technologies we use for cloud migrations
We are technology-agnostic but Microsoft-first, meaning we select the right combination of cloud tools and platforms to deliver the most secure, scalable, and cost-efficient migration possible for your organisation.
Whether you are migrating data, applications, or complete infrastructure, we use proven, enterprise-grade technologies to ensure a smooth transition and long-term performance.
Below are some of the technologies that may be available to you.
Data and analytics migration
Azure Data Factory –often the core of our data migration and orchestration process
Azure Synapse Analytics – for modern data warehousing and analytics
Azure SQL Database / Azure SQL Managed Instance – to modernise on-prem SQL workloads
Azure Cosmos DB – for globally distributed or NoSQL workloads
Azure Storage (Blob, File, Data Lake Gen2) – for scalable storage of structured and unstructured data
Azure Database Migration Service (DMS) – for automated, low-risk database migrations
Application and infrastructure modernisation
Azure App Service – to migrate and modernise web applications
Azure Functions – for serverless and event-driven components
Azure Kubernetes Service (AKS) – for containerised workloads
Azure Virtual Machines – for lift-and-shift migrations
Azure API Management – to modernise and expose APIs securely
Networking, Identity, and Security
Azure Virtual Network (VNet), VPN Gateway, ExpressRoute – for hybrid and secure networking
Microsoft Entra ID (formerly Azure AD) – for identity and access management
Microsoft Defender for Cloud and Microsoft Sentinel – for unified security and threat detection
Azure Policy and Blueprints – to enforce governance and compliance across environments
Management and Optimisation
- Azure Monitor / Log Analytics / Application Insights – for system health and performance monitoring
- Microsoft Purview – for data governance and compliance
- Power BI – for post-migration analytics and reporting
- Power Automate / Logic Apps – for workflow automation across systems
- Azure DevOps / GitHub / Terraform / Bicep – for CI/CD and infrastructure as code
Non-Microsoft technologies
- AWS Glue – for serverless data integration, transformation, and migration within AWS environments.
- Google Cloud Dataflow – for large-scale data processing and orchestration in GCP.
- Snowflake Native Pipelines (Tasks & Streams) – for automating data ingestion and transformation directly in Snowflake.
- Databricks Workflows / Delta Live Tables – for data engineering, orchestration, and automated ETL pipelines across clouds.
- Oracle Cloud Data Integration – for managed ETL and real-time data movement in Oracle environments.
- SAP Data Intelligence – for unifying and orchestrating SAP and non-SAP data for analytics and AI.
Steer73 have offered us a high-quality service from the beginning of the project, working with us to analyse where our current range of digital products were successful and where they were failing, providing both the tools and the encouragement to grow our business.
DHL
“It’s been an absolute pleasure to work with Steer73, very professional, very fast and they keep us in check – keep us focused on answering the important issues at hand.”
Chubb
The team at Steer73 are extremely well versed in their fields and regularly provide informative updates on technology and external industry trends, which we can translate to benefit our customers and anticipate challenges.
Flutter
What our clients have to say
How much does a cloud migration cost?
One of the first questions businesses ask is, “How much will cloud migration cost?” The truth is, there’s no one-size-fits-all answer. What we’ve learned from years of delivering successful cloud migration projects is that every organisation’s systems, data, and goals are different, and costs depend on several key factors.
System complexity
The number of systems, applications, and data sources to migrate directly impacts effort and cost.
Migration strategy
A phased or hybrid migration typically takes longer than a straightforward lift-and-shift but offers reduced risk and downtime.
Data volume and structure
Large or unstructured datasets require more time for preparation, validation, and testing.
Integrations and dependencies
Systems that rely on multiple third-party integrations or on-premise connections add technical complexity.
Security & compliance
Environments requiring enhanced security, encryption, or strict regulatory compliance involve additional setup and validation.
Business criticality
Mission-critical systems need rigorous testing, redundancy, and fail-safe measures, which increase overall cost.
1. Initial consultation
A short, no-pressure call with our London team to discuss your goals and offer early cost guidance.
2. Free discovery project
A structured deep dive to define your infrastructure, timeline, and technical needs.
3. Clear cost plan
With a mapped-out feature set and delivery plan, we help you align your budget with the right framework and approach.
Our cloud migration articles
Developing a VPN solution for a business-critical system migration
How we implemented a scalable, secure VPN solution to enable external database access during a business-critical system migration—without exposing sensitive data to the public internet.
Seven key strategies for data migration
Migrating data in a usable and cost effective way is critical to successful system modernisation and migration. We explore seven general strategies that can be applied to your data migration project.
Outgrowing Excel, what to do next
Many businesses are quietly powered by sprawling Excel spreadsheets. We explore why, when and how to migrate to something more stable.
You’re renting your software—and paying for the privilege
Whereas off-the-shelf solutions may have been a cost-effective choice ten years ago, today custom solutions are not only cheaper but also deliver far greater ROI. We explore why.
FAQS cloud migration consulting, London
As your cloud migration partner, we take confidentiality and data security extremely seriously. All team members are bound by NDAs and confidentiality agreements, and project data is accessed only on a need-to-know basis with role-based permissions. We also adhere to strict security and compliance standards throughout every stage of the migration.
The timeline depends on the size and complexity of your systems, data, and objectives. Our free Discovery project helps establish a realistic timeline and approach from the start.
Every migration is different, so costs depend on your current infrastructure, the volume of data, complexity, and required modernisation. After an initial consultation, we can provide indicative guidance based on similar projects. For a precise estimate, our Discovery project defines the full scope and budget before any commitment is made.
Yes. We structure projects around key milestones to spread costs and reduce risk. This ensures you only pay for defined deliverables as progress is made. To learn more, contact us at hello@steer73.com.
We work primarily within the Microsoft ecosystem, including Azure, Microsoft 365, and Power Platform, but we also have experience across AWS, Google Cloud, and hybrid environments. Our goal is to recommend the platform that best fits your business and technical requirements.
Absolutely. Many of our clients operate hybrid setups that combine on-premise, private cloud, and public cloud systems. We can design and implement seamless integrations between these environments to ensure security, performance, and interoperability.
Our process begins with an initial consultation to understand your current systems and objectives. This is followed by a Discovery project, where we define the migration scope, architecture, and strategy. Once approved, we move into implementation, followed by UAT and go-live. Post-launch, we remain available for ongoing optimisation, security monitoring, and support.
We plan extensively to reduce risk before migration begins, but if challenges arise, our experienced engineers act quickly to resolve them. Our process includes detailed rollback strategies, redundancy planning, and real-time monitoring to minimise downtime or disruption.
We don’t just migrate systems. Our team combines deep expertise across software development, data engineering, and AI, giving us a full understanding of how cloud systems operate and integrate. With a proven methodology, a 100% project success rate, and our proprietary Digital Transformation Platform, we guarantee every migration delivers measurable value.
Yes. Once your systems are live, we can provide ongoing support, optimisation, and cost management. This may include hosting, security and risk monitoring, or modernisation projects such as analytics, AI readiness, or system upgrades. Many clients retain us as a long-term technology partner to continue evolving their cloud environment.
Have a challenge you want to discuss?
No matter what stage your project is in, we would love to speak.
We offer a free discovery service to help you develop a deeper understanding of your problem, the potential solutions and the costs involved in building these solutions.