Search for “managed security service provider” and you’ll land on pages that all look the same: a wall of logos, a paragraph about “world-class expertise,” and no obvious way to tell which of these companies would even take a call from a 50-person business. Some of the names below run security for national governments. Others exist specifically to work with growing businesses like yours. Knowing which is which matters more than the ranking.
What an MSSP Actually Does
A Managed Security Service Provider takes on the specific job of protecting your business from cyber threats: monitoring, detection, and response, usually backed by a security operations centre (SOC) running 24/7. That’s different from a Managed Service Provider (MSP), who keeps your general IT running, systems, updates, support. If security is your main concern, an MSSP is the more specialised choice. Many businesses use both, an MSP for day-to-day IT and an MSSP for dedicated security, working alongside each other.
The 10 Providers, and Who They Actually Suit
Here are ten established MSSPs. We’ve added who each one is realistically built for, because a provider being excellent doesn’t mean it’s excellent for you.
- Security Everywhere — Best for: businesses with 50–250 users, especially in regulated or supply-chain-exposed sectors. Works with national cyber teams to track cybercrime and carefully selects suppliers to bring enterprise-grade managed security within reach of SMEs, without the enterprise price tag or the enterprise sales process. Website: security-everywhere.com
- IBM — Best for: large multinational enterprises. IBM Managed Security Services provides security at global scale, built for organisations with the budget and internal teams to manage an enterprise-level relationship. Website: ibm.com
- Air Sec — Best for: UK SMBs. A UK-based provider delivering clear, practical cybersecurity services using advanced tools and a skilled team to identify and stop risks before they cause harm. Website: airit.co.uk
- Verizon — Best for: large enterprises with global telecom and infrastructure needs. Offers global infrastructure, security intelligence, and risk ratings at a scale built for large, multi-site organisations. Website: verizon.com
- Wipro — Best for: large enterprises running global digital transformation programmes. Delivers managed and hosted security services (CyberShield) from Cyber Defense Centers across multiple countries. Website: wipro.com
- Accenture — Best for: large enterprises, complex multi-country operations. Accenture Security operates in over 50 countries, offering cloud security and infrastructure management at a scale built for global organisations. Website: accenture.com
- NTT — Best for: large multinational enterprises. A trusted name in cyber defence for over 20 years, based in Japan and working with global partners at multinational scale. Website: security.ntt
- Equitech — Best for: UK small to medium businesses. A UK provider focused specifically on making cyber security and IT-managed services simple and effective for SMBs, rather than adapting an enterprise offering downward. Website: equitechgroup.co.uk
- Virtual IT — Best for: growing SMBs. Treats cybersecurity as a growth opportunity rather than a checkbox, with a strategy-driven approach to managed IT and security. Website: virtualit.cloud
- CyberDuo — Best for: regulated SMBs (healthcare, finance, legal). Provides 24/7 monitoring, compliance support, and incident response aimed squarely at smaller regulated businesses rather than global enterprises. Website: cyberduo.com
How to Actually Choose
Once you’ve narrowed the list to providers your size actually matters to, the differences that count are practical, not marketing:
- Genuine 24/7 monitoring — real analysts on shift, not an answering service that reviews things in the morning.
- Access without the enterprise price tag. The tools and expertise should be the same calibre a large enterprise gets, delivered at a cost and contract size that makes sense for your business.
- Real incident response, not just alerting. Ask directly: if something goes wrong, do they act, or just tell you?
- Compliance reporting that maps to what you need — Cyber Essentials, ISO 27001, or a framework requirement from a client, insurer, or supply chain.
- Someone who understands your industry. An MSSP that doesn’t know your regulatory or supply-chain pressures will misjudge what actually matters to protect.
Before you compare providers, know your starting point. It is much easier to judge what you need once you can see what is actually getting through today. Our free Email Security Health Check runs two weeks of read-only monitoring on your Microsoft 365 or Google Workspace. It shows what is reaching your inboxes and whether someone can send email that looks like it comes from you. Free, no card, and the written report is yours to keep. Get your free health check →
Common Questions
Do I need an MSP or an MSSP?
If you need a well-rounded IT solution, network management, software, general support, an MSP may be the better fit. If your main concern is security specifically, an MSSP gives you dedicated expertise and resources focused on protecting your systems and data. Many businesses use both together.
What’s the downside of using an MSSP?
The main risk is losing some control over your IT environment, and that risk grows if the provider doesn’t understand your business or industry. Choose one that communicates clearly, knows your sector, and gives you continued access to your own data in case the relationship ever ends.
Is a bigger MSSP always better?
No. A provider built for Fortune 500 contracts will often be slower, more expensive, and less flexible for a 50-person business than one built specifically for that size. Scale should match your business, not impress it.
Want to see what protecting your business would actually cost? Build your own plan and get live pricing in under a minute with our Cyber Security Packages — no obligation, just clarity.
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