Somewhere in a quote, a job advert or a conversation with another business owner, the letters MSP have appeared, and everyone using them assumed you knew what they meant. Here is the plain answer, and everything useful that hangs off it.
A managed service provider (MSP) is a company that takes ongoing responsibility for another business’s IT for a fixed monthly fee. Not “fixes computers when called”: an MSP continuously monitors, maintains, secures and supports your systems as an outsourced IT department, typically priced per user per month. The model exists because most small and mid-sized businesses depend completely on IT while being nowhere near big enough to staff an IT team, and the MSP spreads engineers, tooling and specialisms across many clients so each gets a whole department for a fraction of one salary.
What “managed” actually changes
The word doing the work in the name is *managed*, and it marks the difference from the older way of buying IT help, known as break-fix: something breaks, you call someone, they fix it, they invoice you.
Break-fix has a structural flaw that has nothing to do with the individual’s competence: the incentives point the wrong way. A break-fix engineer earns when you have problems; there is no revenue in preventing them, so nobody patches your systems, watches your backups or hardens your security between calls. The managed model inverts this. An MSP earns the same fixed fee whether you call constantly or never, which makes your problems their cost. Prevention stops being a favour and becomes the business model: the provider profits by keeping your systems healthy enough that you rarely need to call.
That inversion, more than any technology, is what businesses are buying when they move to an MSP. Our break-fix vs managed comparison works through the arithmetic of when each model makes sense.
What an MSP does month to month
Behind the fixed fee, a competent MSP delivers six things continuously:
- Help desk: a service desk your staff contact for anything broken or baffling, with most issues fixed remotely in minutes.
- Monitoring: software agents watching servers, devices, backups and security signals around the clock, so failures are caught early or prevented.
- Patching: security updates tested and applied promptly across the estate, closing the holes attacks use.
- Security: endpoint protection, email filtering, multi-factor authentication and, at better tiers, monitored detection and staff training.
- Backup management: automated offsite backups with restores actually tested, not assumed.
- Administration and strategy: licences, starters and leavers, vendor wrangling, and a forward view so upgrades are planned rather than emergencies.
The visible part is the help desk; the value is mostly in the five layers you never see working. Our outsourced IT support guide expands each layer and how to compare providers on them.
Variations you’ll meet
A few terms orbit the MSP label and are worth decoding:
- Co-managed IT: the MSP works alongside your in-house IT person or team, covering gaps (out-of-hours, specialisms, overflow) rather than replacing them. Common from about 50 staff up; see our co-managed IT support page.
- MSSP: a managed *security* service provider, specialising purely in security monitoring and response. Many general MSPs now include the core of this; dedicated MSSPs serve higher-risk or larger organisations.
- IT consultant: advises and implements on a project basis but does not take ongoing operational responsibility. Useful alongside, not instead of, managed support.
- VAR / reseller: sells you hardware and licences, possibly with installation. Ownership of the ongoing outcome is what separates an MSP from a supplier.
What MSPs cost and how they charge
UK managed service pricing in 2026 runs from £30 to £150 per user per month, with most SMEs on standard managed plans at £50 to £85. Per-device pricing exists for estates where devices and people diverge, and premium tiers add advanced security, compliance support and out-of-hours cover. The number to interrogate is never the headline rate but what is itemised behind it; our IT support cost guide breaks down the bands, the drivers and the fees that hide outside the rate.
Who MSPs are for
The model fits businesses of roughly 5 to 150 staff: dependent on IT, too small for a full department, and better served renting a slice of one. Below that, pay-as-you-go help can suffice. Above it, hybrid in-house-plus-MSP arrangements take over. Sector matters less than dependency: an eight-person accountancy practice with statutory deadlines has more need of managed support than a thirty-person business that could trade for a week on paper.
One more definitional point that matters in practice: because an MSP holds administrative access to everything it manages, the provider’s own security and professionalism become part of your risk. Certifications on the provider’s own operation (Cyber Essentials Plus, ISO 27001) and clean contractual terms around ownership and exit are how you judge that; our guide to choosing an IT support company lists the exact questions.
Frequently asked questions
What does MSP stand for?
Managed service provider: a company delivering ongoing, proactive IT management for a fixed recurring fee, as opposed to fixing things per incident.
Is an MSP the same as IT support?
An MSP is one way of buying IT support, and for SMEs now the dominant one. “IT support” also covers break-fix callouts, block-hours arrangements and internal teams; the MSP model is defined by continuous responsibility and fixed monthly pricing.
What is the difference between an MSP and an MSSP?
An MSSP specialises exclusively in managed security: monitoring, detection and response. A general MSP covers the whole IT function, including baseline security, and may partner with or include MSSP-grade services at higher tiers.
How do MSPs charge?
Predominantly per user per month (£30 to £150 in the UK in 2026, most SMEs at £50 to £85), sometimes per device, with onboarding fees and out-of-scope work as the components to check before comparing quotes.
Do MSPs replace in-house IT staff?
Only in businesses that never had them. Where internal IT exists, the growing pattern is co-managed: the MSP supplies depth, cover and tooling while the internal team keeps direction. Providers positioning themselves as a threat to your IT staff are selling the wrong model.
How do I know if my business needs an MSP?
If IT problems cost you real money, nobody owns prevention, and security questions from clients or insurers are getting harder to answer, you are the target market. The way to make it concrete is an audit: our free IT health check shows exactly what managed support would take over, and what it would fix first.
See the model in action
Definitions only go so far; the difference shows in the reporting, the response times and the absence of drama. Our free IT health check is the no-commitment way to see it: a full audit of your current setup, findings in plain English, and a fixed monthly price if you want it all handled. Get in touch from anywhere in Scotland; we are the MSP at Dundee Technology Park.
