24/7 SOC capability across detection, investigation and response

Littlefish Group’s managed SOC services, part of our wider managed protection and response capability, run from our UK-based Security Operations Centre and provide 24/7/365 threat detection, investigation and incident response across your IT estate. We deliver SOC capability in both fully managed and co-managed models, structured around your existing security tooling, compliance obligations and any internal security function you have in place.

We hold CREST SOC accreditation, ISO 27001, Cyber Essentials Plus and a Microsoft Solutions Partner for Security designation. Our SIEM of choice is Microsoft Sentinel, complemented by Gartner Magic Quadrant-recognised XDR technology, MDR capability and TTP-based threat hunting on the MITRE ATT&CK framework. In 2025 our SOC managed 175,000 incidents and neutralised more than 1,500 confirmed true positives across our client base.

Inside our managed SOC service

24/7 threat detection

Continuous monitoring across Microsoft Sentinel SIEM, XDR endpoint telemetry and network detection sources. Our analysts apply analytic rules, behavioural detection and AI-augmented correlation to surface security incidents in real time, with cross-sector threat intelligence informing which signals warrant escalation.

Incident response

24/7/365 response to confirmed security incidents, from initial containment through to full eradication and recovery. Our Critical Hour Framework structures the first 60 minutes of incident handling, with documented playbooks for ransomware, business email compromise and identity-based attacks.

TTP-based threat hunting

Proactive threat hunting across your environment using the MITRE ATT&CK framework. Our analysts search for hidden threats, post-exploitation activity and indicators of compromise that signature-based detection is most likely to miss, with findings fed back into detection rules to strengthen protection.

Threat intelligence and reporting

Cross-sector threat intelligence drawn from 175,000 incidents managed in 2025 and curated by our threat intelligence team. Monthly service review reports cover incident trends, detection coverage, response performance and compliance evidence ready for ISO 27001, Cyber Essentials Plus and sector audits.

Where modern security operations come under pressure

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    Detection windows close fast

    The longer a threat goes undetected, the more time an attacker has to escalate privileges, exfiltrate data and establish persistence. Without 24/7 analyst coverage, the evening and weekend windows become exposure windows that automated tooling alone cannot close, particularly for ransomware deployment and identity-based attacks where minutes matter.

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    Alert volume buries the signal

    A standard enterprise SIEM generates thousands of alerts per day, the majority of which are false positives or routine noise. Without dedicated analysts tuning detection rules, triaging at scale and correlating across sources, the alerts that matter get lost in the volume your security tooling produces.

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    Single-organisation visibility is limited

    Detection and response are only as strong as the threat intelligence behind them. A single-organisation security team rarely sees the cross-sector patterns that emerge across hundreds of incidents per month, which limits the ability to identify novel attacker techniques before they become well-known indicators.

Built for fast detection and decisive response

UK-based, analyst-led detection

Our CISSP-qualified SOC analysts apply behavioural detection logic, AI-augmented correlation and cross-sector threat intelligence to surface real incidents from the noise. We do not offshore our SOC and there are no international shift handovers.


Critical Hour response, CREST-accredited

Our Critical Hour Framework structures the first 60 minutes of incident response so containment and stakeholder decisions are made fast. Documented playbooks cover ransomware, business email compromise and identity-based attacks, under CREST SOC accreditation audited annually.


Intelligence from 175,000 incidents

Cross-sector threat intelligence drawn from 175,000 incidents in 2025, refined into detection logic, hunting hypotheses and response playbooks. Independently verified NPS of 81 and CSAT of 95% across the client base.

  • “Littlefish Group helped us understand where we could drive efficiencies as we scaled. It genuinely felt like they were in it with us – they wanted us to win. The team members on the service desk are second to none. Our NPS scores show that. I couldn’t ask for more supportive people than the team at Littlefish Group.”
    Karen Copley
    Head of IT Service Delivery
  • Operationally, Littlefish Group have been an excellent partner. From a collaboration perspective, we share the same goals. There’s never a time when they’re not contactable. Littlefish Group collaboratively work with our other providers, they’re always happy to take on other responsibilities, enhancing user experience via first time fixes and shift left responsibilities; their activities have been second to none.
    Huw Stephens
    CIO and Head of Treasury Business Solutions, HM Treasury
  • Through a highly integrated approach, Littlefish Group has brought together the core service pillars that underpin NHS Supply Chain’s digital operations. These include Service Integration and Management, Modern Workplace solutions, a 24/7 Service Desk, and a dedicated Service Management Office. Together, these services enable us to deliver meaningful improvements that boost operational efficiency, enhance end-user experience, and ensure consistent, high-quality service delivery.
    Matt Wynn
    Data and Technology Executive Director, NHS Supply Chain
  • “Littlefish Group provide a dependable and professional out‑of‑hours and weekend service desk service, which is critical to maintaining continuity of our NHS services. Their team understands the demands of a 24/7 healthcare environment and responds promptly and effectively to support clinical and operational staff when it matters most. The service they deliver is reliable, well‑managed, and aligned with the high standards required to support patient care and frontline services.”
    Kev Fisher
    Assistant Director of Digital Technical Services, University Hospital of Derby and Burton Trust
  • “Since the rollout of the solution, Muiríosa continues to transform what once was a static repository of information into a dynamic tool for communication and learning. Key documents, data and systems are now consolidated across Muiriosa’s 200 locations, ensuring information is accessible to everyone and maintaining transparency across the organisation.”
    Deborah Gleeson
    Information Officer, Muiriosa
  • We are now a couple of months into our independent operation, and we’ve already begun to see a big difference; the speed of our support tickets has improved. We’re able to leverage and use a lot more of the Microsoft ecosystem.
    Jasper Hegarty-Ditton
    Delivery Director, Data and Digital Transformation, LUU
  • “This is why we partnered with Littlefish, a managed IT and cyber services provider that is nimble and understands that our diverse structure means diverse solutions. We look forward to building this partnership over the coming months and years.”
    Richard Murphy
    Chief Information Officer, National Gas
  • “Since Littlefish have been appointed, they have been consistently delivering really excellent service to our staff. We have really tough expectations and have a sliding scale approach to customer satisfaction, so as the years go on, it gets harder. I’m really pleased to report that Littlefish have consistently met this scale.”
    Rob Langley
    Chief Information Officer, Cafcass
  • “It made sense to us to go to an organisation that could offer us a range of security services… we chose Littlefish because they could provide everything we needed. In an ever-evolving landscape, there’s always more to learn and new threats emerging, so I’m confident that Littlefish can help us with that.”
    Amanda Hodge
    ICT Manager
  • “We don’t see Littlefish as an ‘at arm’s length’ organisation, but as a partnership that works closely with us and that’s really important. We’ve really had great engagement in how they wish to understand our unique business and the way we operate and we’re starting to really reap the rewards of that engagement now.”
    Nigel Hall
    Director of IT and Analytics

Talk to us about managed SOC services

If you’re scoping a managed SOC service, evaluating an existing SOC provider, planning a SIEM migration to Microsoft Sentinel or looking for broader managed cyber security services backed by a CREST-accredited SOC, we’d welcome the conversation. Submit the form and we’ll be in touch.

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