Cloud Consulting in London — AWS, Azure & GCP for UK Enterprises
Cloud architecture, migration, cost optimisation, and multi-cloud strategy for London’s FinTech companies and regulated enterprises.
Move to the cloud with confidence. UK data residency, FCA compliance, and 30-40% cost savings built into every architecture.
Why London Companies Need Expert Cloud Consulting
London is the financial technology capital of Europe, and the cloud is the foundation everything runs on. From challenger banks processing millions of transactions to insurance platforms running actuarial models, every serious London tech company has a cloud strategy — but not every company has a good one.
The problem with cloud consulting in London is that the stakes are uniquely high. FCA-regulated companies cannot afford cloud misconfigurations that expose customer financial data. UK GDPR mandates data residency controls that generic cloud architectures do not enforce. Post-Brexit, companies serving both UK and EU customers need multi-region architectures that satisfy both regulatory regimes simultaneously.
We see London companies making the same expensive mistakes: over-provisioned instances running 24/7 at peak capacity pricing, no reserved instances or savings plans despite predictable workloads, data transfer costs spiralling between UK and EU regions, and security configurations that would not survive an FCA operational resilience audit.
A senior cloud architect in London commands £90,000-£130,000 in salary and takes months to recruit through the competitive talent market. Our consulting engagements deliver the same expertise in weeks, not quarters, at a fraction of the cost of a permanent hire.
Common Cloud Problems We Solve in London
- Cloud migration from on-premises — you are still running workloads in co-located data centres or managed hosting. We plan and execute the migration to AWS, Azure, or GCP with zero downtime and UK data residency built in.
- Cloud cost explosion — your monthly cloud bill has tripled and nobody knows where the money goes. We conduct a cost audit, implement FinOps practices, and typically save 25-45% within the first month.
- Multi-cloud complexity — you use AWS for compute, Azure for Active Directory integration, and GCP for BigQuery. We unify the architecture, implement consistent IaC, and reduce operational overhead.
- Compliance gaps — your cloud setup was built by developers who focused on shipping features. Now the compliance team is asking hard questions about data residency, encryption, and access controls.
- No infrastructure-as-code — changes are made through the console, nobody knows what is deployed where, and disaster recovery is a manual runbook nobody has tested.
Cloud Services for London Companies
From cloud strategy to hands-on migration, we cover the full lifecycle for UK companies on AWS, Azure, and GCP.
Cloud Architecture & Strategy
Multi-cloud architecture design, technology selection, and migration roadmaps tailored to UK regulatory requirements and business goals.
- AWS / Azure / GCP architecture
- UK data residency planning
- Landing zone design
- Security & compliance framework
Timeline: 2-4 weeks
From: £8,000 ($10,000)
Cloud Migration
Full migration from on-premises, co-location, or other cloud providers. Phased approach with zero-downtime cutover and rollback plans.
- Discovery & assessment
- Migration planning & execution
- Application refactoring
- Post-migration optimisation
Timeline: 4-12 weeks
From: £20,000 ($25,000)
Cloud Cost Optimisation
FinOps implementation, cost audit, and ongoing optimisation. We find the savings hiding in your cloud bill — typically 25-45% reduction.
- Cloud cost audit & analysis
- Reserved instances / savings plans
- Right-sizing & spot strategies
- Ongoing FinOps management
Timeline: 1-2 weeks (audit)
From: £4,000 ($5,000)
Cloud Security & Compliance
FCA-grade cloud security, UK GDPR compliance, SOC2 readiness, and PSD2 controls. Built for London’s regulated financial services.
- Security posture assessment
- FCA operational resilience
- Encryption & access controls
- Compliance automation (OPA/Kyverno)
Timeline: 2-4 weeks
From: £10,000 ($12,500)
Multi-Cloud Architecture
Unified architecture across AWS, Azure, and GCP. Consistent IaC, networking, security, and observability across all three platforms.
- Cross-cloud networking
- Unified Terraform modules
- Identity federation
- Centralised observability
Timeline: 6-12 weeks
From: £32,000 ($40,000)
Cloud Assessment
A 2-week deep-dive into your existing cloud setup. We audit architecture, security, costs, and compliance — and deliver a prioritised remediation plan.
- Architecture review
- Security & compliance gaps
- Cost analysis & waste identification
- Prioritised recommendations
Timeline: 2 weeks
From: £4,000 ($5,000)
How Much Are You Overspending on Cloud?
Most London companies waste 25-40% of their cloud budget on over-provisioned resources, unused instances, and missing savings plans. Book a free cloud cost review and find out where your money is going.
Our Cloud Consulting Process
Discovery & Assessment
We start with a free call to understand your current infrastructure, compliance requirements, growth plans, and cloud maturity. Within 48 hours, you receive a cloud assessment report with architecture recommendations, cost projections, and a migration or optimisation roadmap specific to your London business.
Architecture & Planning
We design your target cloud architecture in UK regions, write the Terraform infrastructure-as-code, plan the migration phases with rollback strategies, and define the security and compliance controls. Everything is documented and reviewed with your team before we touch production.
Migrate & Build
We execute the migration or cloud build alongside your engineering team. Phased cutover with zero-downtime strategies, automated testing, performance validation, and compliance verification at every step. UK data residency is enforced from the start — not bolted on afterward.
Optimise & Handover
Post-migration, we optimise costs, performance, and security. You receive full documentation, runbooks, team training, and — if you want — ongoing cloud management services. We support both full handover and managed models depending on your team capacity.
Who We Help with Cloud in London
FinTech & Financial Services
FCA-regulated companies needing cloud architectures that pass compliance audits, enforce UK data residency, and scale with transaction volumes. Revolut, Monzo, and Starling built their clouds right — we help you do the same.
Typical project: £20K-£65K, 4-12 weeks
SaaS Scale-ups
Series A-C companies that outgrew their initial cloud setup. Costs are spiralling, deployments are fragile, and the architecture cannot scale to the next 10x. We fix, optimise, and future-proof your cloud.
Typical project: £16K-£40K or monthly retainer
Enterprise Migration
Large organisations migrating from on-premises data centres or legacy hosting to modern cloud infrastructure. Phased migration with business continuity guarantees and regulatory compliance throughout.
Typical project: Assessment + phased engagement
Common Questions About Cloud Consulting in London
How much does cloud consulting cost in London?
Cloud consulting in London ranges from £20,000 to £65,000 ($25,000-$80,000) for a migration or architecture project (4-12 weeks), or £8,000-£24,000 ($10,000-$30,000) per month for ongoing cloud management. A 2-week cloud architecture assessment starts at £4,000-£8,000. Consulting engagements typically save London companies 40-60% compared to hiring a full-time cloud architect at London salaries.
Which cloud provider is best for London FinTech companies?
AWS (eu-west-2 London region) dominates among London startups with the broadest service catalogue. Azure (UK South) is preferred by enterprises in the Microsoft ecosystem and companies selling to government. GCP (europe-west2 London) is growing among AI/ML-focused companies. Many London FinTech companies run multi-cloud for resilience and best-of-breed services.
How do you handle UK data residency requirements for cloud migration?
We ensure all regulated workloads deploy in UK cloud regions. For FCA-regulated companies, we implement data classification policies, encryption, VPC isolation, and audit logging. For post-Brexit compliance serving both UK and EU customers, we design multi-region architectures with data residency controls that keep UK data in the UK and EU data in EU regions.
Can you migrate our on-premises infrastructure to the cloud?
Absolutely. We have migrated London companies from co-located data centres and managed hosting to AWS, Azure, and GCP. Our methodology includes discovery, architecture design, phased migration with Terraform IaC, application refactoring where needed, and post-migration optimisation. Typical enterprise migrations take 8-16 weeks.
How much can cloud cost optimisation save London companies?
We typically achieve 25-45% cloud cost savings. Quick wins include right-sizing instances (20-30%), reserved instances and savings plans (30-40%), spot strategies for non-critical workloads (60-90% savings), eliminating unused resources, and optimising data transfer costs between UK and EU regions.
Related Services in London
Cloud architecture is one part of a modern tech platform. We also help London companies with:
- DevOps Services in London — full-stack DevOps consulting and automation for the UK
- Kubernetes Consulting London — K8s cluster setup, migration, and managed services
- Terraform Consulting London — Infrastructure as Code for cloud resources
- Platform Engineering London — Internal Developer Platforms on cloud infrastructure
- DevOps Outsourcing UK — managed DevOps and team augmentation
- Cloud Architecture & Cost Optimisation
- Terraform & IaC Consulting
Ready to Optimise Your Cloud in London?
Whether you are migrating to the cloud, cutting costs, or building for compliance — start with a free cloud architecture review.
hello@platform-projects.com | GMT/BST (UTC+0/+1) | Serving London, UK & remote worldwide