Cloud migration is one of the most significant decisions a UK small or medium business can make, and choosing between Microsoft 365, Azure, and Google Workspace will shape how your organisation operates for years to come. Whether you are moving away from ageing on-premises infrastructure or simply looking to modernise how your team collaborates, understanding these platforms is essential before you commit to anything.
This guide walks you through what each platform offers, how they compare, what a cloud migration project actually involves, and how to avoid the most common pitfalls. If you have been putting off the decision because it feels overwhelming, this article will give you a clear, practical framework to work from.
What Is Cloud Migration and Why Does It Matter for UK Businesses?
Cloud migration refers to the process of moving your business data, applications, and IT infrastructure from on-premises hardware to cloud-hosted services. Rather than maintaining physical servers in your office or a data centre, you pay a subscription to access computing resources managed by a provider such as Microsoft or Google. For small and medium businesses (SMBs) across the UK, this shift removes the burden of hardware maintenance, software patching, and costly hardware refresh cycles.
The UK cloud services market continues to grow rapidly, driven by hybrid working, cyber security concerns, and the approaching end of support for older Microsoft server and operating system products. Many businesses are also reconsidering on-premises setups as energy costs and IT staffing become more challenging. Cloud platforms offer predictable monthly costs, automatic updates, and built-in redundancy that most SMBs could not afford to replicate with their own hardware.
That said, cloud migration is not simply a case of pressing a button and moving on. It requires planning, staff training, data governance decisions, and often a hybrid period where on-premises and cloud systems run in parallel. Understanding what you are migrating to is just as important as understanding why you are leaving your current setup.
Microsoft 365: The Business Standard for UK SMBs
Microsoft 365 (formerly Office 365) is the most widely used cloud productivity platform in the UK SMB market. It bundles familiar applications including Word, Excel, Outlook, Teams, and SharePoint into a single subscription, with all data stored in Microsoft’s cloud. For businesses already running Windows environments, Microsoft 365 slots in naturally and reduces the friction of user adoption significantly.
Pricing for Microsoft 365 is tiered, with plans designed to suit businesses of varying sizes. Microsoft 365 Business Basic starts from around £5 per user per month, offering cloud-based apps and Teams. Microsoft 365 Business Standard, which includes desktop Office applications, is typically priced around £10.30 per user per month. The Business Premium tier, which adds advanced security features such as Intune device management and Defender for Business, is typically around £19.70 per user per month. These prices are often available through UK resellers and Microsoft’s own portal, though they can vary slightly.
One of the strongest arguments for Microsoft 365 in a UK business context is its integration with Active Directory and existing Windows infrastructure. If your team already uses Outlook, the transition to Exchange Online feels familiar. SharePoint and OneDrive provide robust file storage and collaboration, and Teams has become the backbone of internal communication for hundreds of thousands of UK businesses since 2020. Microsoft 365 also has strong compliance capabilities relevant to UK data protection requirements, including support for UK GDPR controls and data residency options within European data centres.
Microsoft Azure: Cloud Infrastructure for Growing Businesses
While Microsoft 365 handles productivity and collaboration, Azure is Microsoft’s cloud computing platform covering infrastructure, virtual machines, databases, networking, and developer services. For UK SMBs outgrowing their physical servers, Azure offers a way to host line-of-business applications, run virtual desktops, and scale computing resources up or down on demand without purchasing new hardware.
Azure Virtual Desktop (formerly Windows Virtual Desktop) is particularly compelling for businesses supporting remote workers. Rather than investing in powerful endpoint devices for every member of staff, you can run Windows desktops in Azure and stream them to almost any device. This also simplifies device management and security, as data never leaves the cloud environment. Azure’s UK South and UK West data centres mean your data can remain within the United Kingdom, which is important for many regulated industries and businesses conscious of data sovereignty post-Brexit.
Azure pricing is consumption-based, meaning you pay for what you use. This can be very cost-effective for variable workloads, but it can also lead to unexpected bills if resources are not managed carefully. Many UK IT managers pair Azure with Microsoft Cost Management tools and set spending alerts to keep costs predictable. Azure Reserved Instances, where you commit to one or three-year terms, can reduce costs by up to 40 to 70 percent compared to pay-as-you-go rates, which is worth exploring once your workloads stabilise. Azure also integrates tightly with Microsoft 365, meaning identity management through Azure Active Directory (now called Microsoft Entra ID) spans both platforms seamlessly.
Google Workspace: The Collaborative Alternative
Google Workspace (formerly G Suite) is the main alternative to Microsoft 365 for UK businesses looking for a cloud-native productivity platform. It includes Gmail, Google Drive, Docs, Sheets, Slides, Meet, and Chat, all built from the ground up for browser-based collaboration. If your team works primarily in a browser and values real-time co-editing without version conflicts, Google Workspace is genuinely impressive.
Google Workspace Business Starter typically starts from around £5.20 per user per month, with Business Standard at approximately £10.40 per user per month and Business Plus at around £15.60 per user per month. The Enterprise tiers are priced on request and include advanced security, compliance, and data loss prevention tools. Google’s data centres serving UK and European customers are located within the EU, with UK data residency options available on higher-tier plans.
The main consideration for UK businesses switching to Google Workspace from a Microsoft environment is the learning curve and compatibility. While Google Docs can open and edit Word and Excel files, complex spreadsheets with macros or heavily formatted Word documents can lose fidelity. Businesses with deep Microsoft dependencies, including Access databases, complex Excel models, or on-premises Active Directory, will find the transition more involved. That said, businesses starting fresh, or those in creative, media, or technology sectors, often find Google Workspace more intuitive and faster to deploy.
| Feature | Microsoft 365 Business Standard | Google Workspace Business Standard |
|---|---|---|
| Price (approx. per user/month) | £10.30 | £10.40 |
| Outlook / Exchange Online | Gmail | |
| File Storage | 1TB OneDrive | 2TB pooled Google Drive |
| Video Conferencing | Microsoft Teams (up to 300 participants) | Google Meet (up to 150 participants) |
| Desktop Apps Included | Yes (Word, Excel, PowerPoint etc.) | No (browser-based only) |
| Best Suited For | Microsoft-heavy environments | Browser-first or Google-native teams |
Planning Your Cloud Migration: A Step-by-Step Approach
A successful cloud migration starts well before any data moves. The preparation phase is where most failed migrations go wrong, usually because businesses underestimate the complexity of their existing setup or skip the audit stage entirely. Before selecting a platform, take stock of what you currently have: which applications you run, how much data you are storing, how staff access systems, and what your compliance obligations are. If you are running ageing Windows Server infrastructure, our guide on Windows Server End of Life Checklist for Businesses is a useful companion resource for this phase.
Once you have a clear picture of your existing environment, you can map each workload to a cloud equivalent. Email is typically the easiest starting point, followed by file storage, and then more complex applications. It is worth engaging a Microsoft Certified Partner or Google Cloud Partner early in the process, as many offer free discovery workshops that can surface dependencies you might not have considered. Security configuration, particularly identity management, conditional access policies, and multi-factor authentication, should be planned before migration begins rather than bolted on afterwards.
Here is a simplified migration checklist for UK SMBs:
- Conduct a full audit of existing hardware, software, and data volumes
- Identify compliance requirements (UK GDPR, FCA, ISO 27001 if applicable)
- Choose your target platform (Microsoft 365, Azure, Google Workspace, or a combination)
- Select a migration partner or reseller with relevant accreditation
- Configure identity and access management before migrating users
- Enable multi-factor authentication from day one
- Migrate in phases, starting with a pilot group of users
- Train staff before go-live, not after
- Decommission on-premises infrastructure only after a parallel running period
- Review security settings and access logs regularly post-migration
It is also worth thinking about endpoint security during a migration. Cloud platforms significantly reduce the attack surface of your internal network, but remote devices still need protecting. Pairing strong cloud identity controls with hardware security keys, such as the Yubico Security Key for two-factor authentication, adds a robust physical layer to your cloud access controls that is particularly effective against phishing attacks targeting staff credentials.
Security, Compliance, and Data Residency for UK Businesses
UK data protection law, shaped by the UK GDPR and the Data Protection Act 2018, requires businesses to understand where personal data is stored and processed. Both Microsoft and Google offer data residency controls, but the specifics vary by plan tier and configuration. Microsoft 365 allows UK customers to elect to store data within the European Union, and Azure’s UK South region in London and UK West region in Cardiff provide in-country options for sensitive workloads. Google Workspace offers regional storage policies on Business Plus and Enterprise plans.
Security configuration on cloud platforms is largely the responsibility of the business, not the provider. Microsoft and Google operate on a shared responsibility model, meaning they secure the underlying infrastructure, but you are responsible for correctly configuring user access, data sharing policies, email filtering, and device compliance. This is a common misunderstanding among SMBs new to cloud, and it leads to significant security gaps. Conditional access policies, which restrict access based on device health, location, and user risk, are available in Microsoft 365 Business Premium and Google Workspace Enterprise, and are well worth enabling even if they require some initial setup effort.
Regular security audits become even more important once you move to cloud. Unlike on-premises environments where physical access is naturally limited, cloud platforms are accessed from anywhere, which expands your potential attack surface. Building a culture of security awareness among staff, combined with technical controls, is the most effective combination. Our article on Multi Factor Authentication (MFA) covers the practical side of enabling these controls in detail.
Hybrid Cloud: When You Do Not Need to Go All In
Not every UK business needs to move everything to the cloud at once, and for many, a hybrid model makes more practical sense. A hybrid cloud setup combines on-premises infrastructure with cloud services, allowing businesses to keep latency-sensitive or compliance-critical workloads local while moving collaboration tools, email, and backup to the cloud. This is particularly relevant for businesses in sectors such as professional services, manufacturing, and healthcare, where specific applications may not yet have cloud equivalents or where data sovereignty requirements demand local storage.
Microsoft Azure is particularly well suited to hybrid scenarios through tools such as Azure Arc, which extends Azure management to on-premises servers, and Azure Site Recovery, which provides disaster recovery capabilities for local infrastructure. Microsoft 365 also works well alongside on-premises systems, with Exchange Hybrid allowing a mixed mailbox environment during a phased migration. If you are weighing up whether to keep some infrastructure on-premises, our comparison of On Prem vs Hosted Servers After End of Life is directly relevant to this decision.
For businesses that need local file serving or backup alongside cloud access, a network-attached storage device can play a useful intermediate role. Modern NAS devices can sync to cloud platforms, providing local access speeds with cloud redundancy. This kind of layered approach can be particularly useful for businesses where internet connectivity is inconsistent or where large file volumes would make cloud-only storage impractical in the short term.
Key Takeaways
- Cloud migration involves moving IT workloads from on-premises hardware to hosted platforms such as Microsoft 365, Azure, or Google Workspace
- Microsoft 365 is the dominant choice for UK SMBs with existing Microsoft environments, offering familiar tools and strong compliance features
- Azure extends cloud capabilities to virtual machines, hosted applications, and scalable infrastructure, with UK data centre options
- Google Workspace is a strong alternative for browser-first teams, with competitive pricing and excellent real-time collaboration tools
- Planning is critical: audit your existing environment, address security and compliance before migrating, and train staff early
- Multi-factor authentication and conditional access policies should be configured from day one, not added later
- A hybrid approach combining on-premises and cloud services is a valid and often sensible path for many UK SMBs
- Data residency and UK GDPR compliance should inform which platform tier and configuration you choose
Related Guides
- Windows Server End of Life Checklist for Businesses
- On Prem vs Hosted Servers After End of Life
- Multi Factor Authentication (MFA): The Game-Changer for Enhanced Security
- Yubico Security Key: Two-Factor Authentication
- Cybersecurity Policies for Small Businesses
Frequently Asked Questions
Is Microsoft 365 or Google Workspace better for a UK small business?
It depends on your existing setup and working style. Microsoft 365 is the stronger choice if your team already uses Windows, Outlook, and Office applications, as the transition is smoother and the integration with existing infrastructure is tighter. Google Workspace suits businesses that work primarily in a browser, value real-time document collaboration, or are starting fresh without legacy Microsoft dependencies. Both are competitively priced at entry level, so the decision usually comes down to your team’s habits and your IT environment rather than cost alone.
Do I need Azure if I already have Microsoft 365?
Not necessarily. Microsoft 365 covers email, collaboration, file storage, and desktop applications. Azure is a separate platform for hosting virtual machines, databases, custom applications, and infrastructure. Most small businesses can operate entirely on Microsoft 365 without needing Azure. Azure becomes relevant when you need to host line-of-business applications in the cloud, run virtual desktops, or replace physical servers with cloud-based infrastructure. If you are simply moving your team from on-premises Office to cloud-based productivity tools, Microsoft 365 on its own is sufficient.
How long does a cloud migration typically take for a UK SMB?
The timeline varies considerably depending on the size of the organisation, the complexity of the existing environment, and the scope of what is being migrated. A straightforward email and file migration for a business of 10 to 20 users might take four to eight weeks from planning to completion. Larger migrations involving custom applications, complex Active Directory setups, or hybrid configurations can take several months. Rushing the process is one of the most common causes of problems, so building in sufficient testing and a parallel running period is always advisable regardless of urgency.
Where is my data stored if I use Microsoft 365 or Google Workspace as a UK business?
For Microsoft 365, UK business customers typically have data stored in European data centres, with options on certain plans to elect the European Union as the primary data residency region. Microsoft’s Azure UK South (London) and UK West (Cardiff) regions can be used for Azure workloads requiring in-country storage. Google Workspace offers regional storage policies on Business Plus and Enterprise plans, allowing data to be kept within the EU. You should check the specific data residency options available on the plan you are considering and document your configuration for UK GDPR compliance purposes.
What are the biggest risks of cloud migration for small businesses?
The most common risks include inadequate planning leading to data loss or downtime during migration, misconfigured security settings leaving cloud accounts exposed, staff resistance or lack of training causing productivity dips, and unexpected costs from unmanaged cloud resource consumption. Engaging an accredited migration partner, enabling multi-factor authentication before migration begins, conducting a thorough pre-migration audit, and training staff in advance all significantly reduce these risks. Data backup during the migration window is also critical, as most cloud providers do not offer point-in-time backup by default on entry-level plans.
Related Posts
- What Is Microsoft 365?
- Microsoft 365 for Small Business UK: Is It Worth It?
- Microsoft 365 vs Google Workspace
- Azure vs AWS vs Google Cloud for UK SMEs
- What Is Google Workspace?
- How to Migrate Your Business to the Cloud (Without the Headaches)
Complete Guide Index
- Microsoft Excel — Complete Guide and How-To Index
- Microsoft Word — Complete Guide and How-To Index
- Microsoft Windows 10 — Complete Guide and How-To Index
- Linux — Complete Guide and How-To Index
