Looking for an IT Support Company in London?
IT Club is an independent technology advice and intelligence resource for SMEs. This guide is not written to promote any particular IT support provider. Where we reference our sister business Altitude IT, we do so transparently and clearly.
London is the UK's largest city and its most competitive IT support market. A vast range of providers operate across the capital — from one-person operations serving local sole traders to multi-hundred-person managed service businesses with enterprise clients. That volume and variety makes comparison harder, not easier. IT support requirements across London's industries are equally varied: a financial services firm in the City, a creative agency in Shoreditch, a legal practice in Mayfair, and a healthcare business in the outer boroughs all have different priorities and risk profiles. This guide explains what managed IT support should cover, what to ask before signing, and what separates a genuinely capable provider from one selling the right words.
The London IT Support Market
London has more IT support providers per square mile than anywhere else in the UK. That competitive density can work in buyers' favour — prices are often more negotiable, and the talent pool is larger. It also means there is no shortage of providers who present well in a sales conversation and underdeliver in practice.
London's financial services sector — concentrated in the City, Canary Wharf, and surrounding areas — operates under regulatory requirements that go well beyond standard SME IT. FCA-regulated firms, including banks, asset managers, insurance businesses, and financial advisers, have specific obligations around data governance, access controls, audit logging, business continuity, and systems resilience. A provider that serves regulated firms well understands that these requirements shape every aspect of how systems are configured — not just what software is installed.
London's legal sector — spanning large commercial firms and boutique practices — has its own compliance pressures, including SRA requirements, client data handling obligations and increasingly strict cybersecurity expectations from large clients. Law firms are a frequent ransomware target: privileged client communications and transaction data are valuable, and firms often have complex multi-partner environments that increase the attack surface.
Across London's diverse economy — media, creative, technology, healthcare, professional services, hospitality and retail — the common thread is that IT requirements are more varied than in any other UK city. Providers that serve one sector well may have limited experience in another. Ask specifically about their existing client base and whether they have experience supporting businesses similar to yours.
What Should an IT Support Company Actually Provide?
Not all IT support is the same. Two providers can both describe themselves as offering 'fully managed IT support' and mean quite different things. Understanding what each service area covers — and what it doesn't — is the first step to comparing proposals fairly.
Reactive Helpdesk
A helpdesk handles problems after they occur — a user cannot access email, a printer has stopped working, a password needs resetting. The key question is not just how quickly someone answers, but how quickly problems actually get resolved. Response and resolution are different things. Knowing which one your SLA covers matters more than the headline number.
Proactive Monitoring
Proactive monitoring means watching your systems continuously and identifying issues before they become problems — a server running out of disk space, a device that has not received patches in weeks, a backup that failed silently last night. Without it, you find out something is wrong when users complain. With it, many problems are resolved before anyone notices them.
What Your IT Provider Should Monitor →
Patch Management
Patch management keeps the software on your devices and servers up to date. Unpatched vulnerabilities are one of the most common entry points for attackers. A managed provider should be applying patches to operating systems, applications and firmware on a regular, documented schedule — not waiting for users to click 'install updates' or leaving server software untouched for months.
Microsoft 365 Administration
Most London businesses run on Microsoft 365. Licensing is only the beginning. Security configuration — who can share files, what authentication methods are required, which legacy protocols are still enabled, whether MFA is actually enforced everywhere — requires ongoing administration. A provider that does nothing beyond creating accounts and assigning licences is not managing your Microsoft 365 environment; they are hosting it. For regulated businesses in financial services and legal, Microsoft 365 configuration also intersects with data governance, eDiscovery, retention policies and audit requirements that require specific expertise.
Microsoft 365 Security Checklist: 7 Controls Every Business Should Review →
Cybersecurity
Cybersecurity from a managed provider typically includes endpoint protection, email filtering, MFA configuration and security monitoring. The important distinction is between licensing a product and configuring it properly. A security tool that is installed but left at default settings may provide very little real protection. Ask what security products are included, how they are configured, and who reviews alerts. In London's high-value professional services sectors, this question carries particular weight — targeted attacks on law firms, financial advisers and accountancy practices are common.
Are You Paying Twice for IT Security You Already Own? →
Backup
Backup is frequently misunderstood. Microsoft 365 is not inherently backed up — Microsoft retains data for a limited period and maintains platform availability, but that is not the same as a restore point you control. OneDrive sync is not a backup. Version history is not a backup. A properly managed provider should include backup of your critical data — including Microsoft 365 mailboxes, Teams data and SharePoint — and should test restores on a regular schedule. A backup that has never been tested is an assumption, not a guarantee.
Onsite Support
London's geography makes onsite support a more complex consideration than in most UK cities. A provider based in South London may have a very different response time for a client in North London compared to one in their own area. Traffic, tube disruptions and travel time all affect real-world onsite response. If onsite attendance matters to your business, ask for a specific commitment for your postcode and building — not a general 'London' promise.
Strategic IT Advice
A good IT support relationship should include more than break-fix. Regular review conversations about where your technology is heading — hardware refresh planning, licence optimisation, security improvement roadmaps — are part of what separates a strategic partner from a reactive helpdesk. Some providers include a formal IT review as part of their service; others offer it only when asked.
Projects
One-off projects — migrating to Microsoft 365, replacing a server, adding a new office — are usually outside the scope of a monthly support agreement. Most providers bill projects separately, which is reasonable. The question to ask is how projects are scoped, quoted and approved, and whether your support provider has the capacity to deliver them alongside day-to-day support.
Compliance Assistance
If your business is pursuing Cyber Essentials, Cyber Essentials Plus, ISO 27001 or another security certification, your IT provider's involvement matters. London businesses in financial services, legal, professional services and technology are increasingly expected — or required — to hold certifications as a condition of client contracts or regulatory compliance. Some providers have direct experience supporting certification assessments; others do not. Understanding what counts as 'in scope' — including cloud services like Microsoft 365 — is something your provider should be able to explain clearly.
What Counts as a Cloud Service for Cyber Essentials? →
Questions to Ask an IT Support Provider
Before signing a contract, these are the questions worth asking directly. A provider who cannot answer them clearly — or deflects — is telling you something.
Helpdesk and Response
- What is your helpdesk response SLA — and is that a response time or a resolution time?
- Do different types of issues have different priority levels and SLAs?
- What are your helpdesk hours, and what happens outside those hours for a critical failure?
- Is there a limit on the number of helpdesk tickets included in the monthly fee?
Microsoft 365 and Security
- Who configures and maintains Microsoft 365 security settings — MFA, Conditional Access, sharing permissions?
- Are Microsoft 365 licences included in the fee, or billed separately? Is there a markup on licences?
- How do you handle Microsoft 365 security alerts and Secure Score recommendations?
- What endpoint security is included, and how is it configured and monitored?
Microsoft Secure Score: Is Your Microsoft 365 Environment Actually Secure? →
Backups and Data Protection
- Is Microsoft 365 backup — mailboxes, Teams, SharePoint — included, or is it an extra?
- What else is backed up, and how frequently?
- How often are restores actually tested, and can you provide records of those tests?
- Where is backup data stored, and is it held in the UK?
Email Security
- What email filtering and anti-phishing protection is included?
- Is DMARC configured on our domain, and do you manage it?
- Who manages SPF and DKIM records, and how are changes to DNS handled?
What Is DMARC and Why Does Your Business Need It? →
Endpoint and Vulnerability Management
- How is patch management handled — what is patched, how frequently, and how is it reported?
- Is vulnerability scanning included, or is it available as an add-on?
- How are unmanaged or personal devices handled if they access company data?
Cyber Essentials
- Have you supported businesses through Cyber Essentials or Cyber Essentials Plus certification?
- If we pursue certification, what would be in scope and what would be your role?
- Do you have experience supporting businesses in regulated sectors — FCA-regulated firms, SRA-regulated legal practices, or public sector supply chains?
What Counts as a Cloud Service for Cyber Essentials? →
Contract Terms and Notice
- How long is the initial contract term, and what is the notice period after that?
- Are there automatic price increases, and how are they calculated?
- Are projects included in the monthly fee, or separately quoted?
- What exclusions apply — hardware replacements, new device setup, out-of-hours work?
- Is there a minimum user number, or does the fee scale proportionally if headcount changes?
Business Contracts: What Should You Check Before Signing? →
Ownership and Exit
- Who controls our Microsoft 365 tenant — do we have Global Administrator access?
- Who is the registered owner of our domain name, and who controls the DNS?
- If we decide to leave, what is the exit process — how are credentials, data and services handed back?
- Have you previously completed a handover to a different provider, and what did that involve?
Can You Move Microsoft 365 Away from Your Current Provider? →
IT Provider Comparison Checklist
Use this table when reviewing proposals from London IT support companies. Ask each provider to confirm their position on each area in writing before you sign.
| Area | What to check |
|---|---|
| Helpdesk | Whether the SLA covers response or resolution — and what those times are for different priority levels |
| Microsoft 365 | Who configures and maintains security settings, and whether licences are included or marked up |
| Cybersecurity | What protection is genuinely included versus licensed but not actively managed |
| Backups | What is backed up (including Microsoft 365), how often, and whether restores are tested |
| Contracts | Initial term length, notice period, annual price increase terms and exclusions |
| Onsite support | Whether onsite visits are included, and the specific response time for your postcode — not a general 'London' commitment |
| Cyber Essentials | Whether the provider has experience supporting certification — especially in regulated sectors such as financial services or legal |
| Monitoring | What is proactively monitored, how alerts are handled and how monitoring is reported |
| Projects | Whether projects are included or separately billed, and how they are scoped and approved |
| Ownership | Who controls your domain registrar, DNS records, Microsoft tenant and administrator credentials |
| Exit process | How data, credentials and services are handed back on termination |
Common IT Support Red Flags
These are patterns worth being aware of when reviewing a proposal or reviewing your current arrangement. They do not automatically indicate bad intent — some reflect genuine complexity or different service models — but each one deserves a direct question and a clear answer.
- Paying twice for overlapping security products — for example, a bundled endpoint tool that duplicates protection already included in Microsoft 365 Business Premium
- Microsoft 365 licences marked up significantly above Microsoft's published prices without clear added value
- Vague promises of '24/7 monitoring' with no detail about what is being monitored or what triggers a response
- SLA documentation that refers only to response time rather than resolution time
- Critical business data — including Microsoft 365 — with no separately managed backup
- Microsoft 365 assumed to be 'backed up by Microsoft' without a third-party backup solution in place
- Domain registration or DNS held in the provider's own account rather than yours
- Long initial contract terms — three years or more — with weak or expensive exit clauses
- Security products licensed as part of the agreement but left at default settings with no active configuration or monitoring
- No documented security baseline, no record of what has been configured and why
- Onsite response commitments that refer to 'London' without specifying your actual postcode — travel time across the capital varies enormously
- No evidence of experience with regulated environments if your business operates in financial services, legal, healthcare or other sectors with compliance obligations
Are You Paying Twice for IT Security You Already Own? →
Not Sure Whether Your Current IT Support Is Good Value?
Tell IT Club what you're paying, what you've been quoted or what you're concerned about. Ask the Advisor will give you a plain-English view of the proposal, contract or issue — without sales pressure.
Need Someone to Actually Fix It?
IT Club provides independent guidance and practical information. Where hands-on IT support is required, one option is our sister business Altitude IT, which provides managed IT support, Microsoft 365, cybersecurity and project services, primarily across the North West. The relationship between IT Club and Altitude IT is transparent: we share common ownership. Altitude IT is one option among many — not a recommendation above other providers, and not endorsed by IT Club as the only choice.
Related IT Club Guides
These IT Club articles cover topics that come up regularly when reviewing IT support arrangements.
Microsoft 365 Security Checklist: 7 Controls Every Business Should Review →
Are You Paying Twice for IT Security You Already Own? →
Can You Move Microsoft 365 Away from Your Current Provider? →
What Your IT Provider Should Monitor →
What Counts as a Cloud Service for Cyber Essentials? →
What Is DMARC and Why Does Your Business Need It? →
Microsoft Secure Score: Is Your Microsoft 365 Environment Actually Secure? →
Frequently Asked Questions
What does IT support typically cost for a small London business?
Pricing in London is typically higher than other UK cities, reflecting higher operational costs. Monthly per-user fees from managed service providers generally range from around £50 to £150 or more per user, depending on scope of service, licence bundling and provider scale. London's competitive market means pricing can vary widely between providers offering nominally similar services — always confirm what is included and what is charged separately before comparing on headline price. A lower monthly fee that excludes backup, Microsoft 365 licences or onsite support can end up costing significantly more in practice.
We're an FCA-regulated firm. What should we look for in a London IT provider?
FCA-regulated businesses have obligations that go significantly beyond standard managed IT. Data governance, access controls, audit logging, business continuity planning and systems resilience all intersect with FCA regulatory requirements. A provider with experience in regulated environments will understand that these requirements shape configuration decisions — not just what products are deployed, but how they are set up and documented. Ask specifically whether the provider has supported other FCA-regulated firms, what controls they configure differently for those clients, and how they evidence compliance with security requirements.
Does it matter whether our IT provider is based in London?
For helpdesk and remote support, physical location matters less than it once did. Where it becomes relevant is onsite support — and in London, geography matters more than in most UK cities. Travel time across London can be significant; a provider based in East London may have a very different practical response time for a West End office than a provider based nearby. If onsite attendance is important to your business, ask for a specific response time commitment for your postcode and building — not a general 'London' or 'same day' commitment.
Is Microsoft 365 backed up by Microsoft?
No. Microsoft provides platform availability and short-term retention for disaster recovery at the platform level, but this is not the same as a backup you control. Deleted items in Exchange Online and SharePoint are retained for a limited period, but items permanently deleted by users, overwritten, or affected by a ransomware attack may not be recoverable. Most businesses running Microsoft 365 should have a separate third-party backup solution covering mailboxes, SharePoint, Teams and OneDrive.
What is Cyber Essentials and is it relevant for London businesses?
Cyber Essentials is a UK government-backed certification scheme covering five basic security controls: secure configuration, access control, malware protection, patch management and network firewalls. It is required for government contracts and increasingly expected across professional services, financial services and technology supply chains — all well represented in London. Many large London businesses and public sector organisations require it from their suppliers. Your IT support provider should be familiar with the requirements and able to explain what would need to change in your environment to meet them.
Who should own our domain name?
Your business should be the registered owner of its own domain name, with access to the domain registrar account in your name or under your direct control. If your IT provider registered the domain on your behalf, check who is listed as the registrant. Similarly, DNS records — which control where your email and website go — should be accessible to you, not locked inside a provider's account. Losing access to your domain when switching providers is a significant operational risk.
What should happen when we leave an IT support provider?
A professional exit should include the transfer of all credentials and access — Microsoft 365 Global Administrator access, domain registrar login, DNS management, firewall access, any hosted systems — back to you or your new provider. Backup data should be provided in a usable format. Licences held in the provider's account should be transitioned or replaced. Ask about the exit process before signing, not after you have decided to leave.