New Trustmarque and Ultima Business Solutions have completed their merger, officially joining forces to lead the future of IT services.

Microsoft Security

Trustmarque Microsoft Security Services

Maximise your Microsoft investment. Secure your future.

At Trustmarque, we help organisations unlock the full potential of Microsoft Security. Whether you're on Microsoft 365 E3 or E5, our services are designed to optimise your existing estate, reduce risk, and accelerate your security maturity. As a Microsoft Solutions Partner with deep expertise across the security stack, we deliver proactive, embedded support that goes beyond traditional consultancy.

Our SecureXpert services covers
all eight
Microsoft Security Domains
Proven
3 stage framework
to transition to Microsoft Sentinel
Up to
44% reduction
in security tool spend

Upcoming Event 

Join Us at the Principality Stadium for a Transformative Healthcare Event

Date: Tuesday 18th November

Location: Principality Stadium, Cardiff, Wales

Time: 10:00 - 16:30

Benefits

Maximise your Microsoft investment. Protect what matters most.

Trustmarque is a Microsoft Cyber Security Integration (CSI) partner with all seven Microsoft Solution Partner designations. Our security services are designed to help you unlock the full value of your Microsoft estate, whether you're starting with E3 or already invested in E5. From proactive advisory to technical enablement, we deliver scalable, embedded expertise that evolves with your organisation.

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Microsoft Cyber Security Integration Partner

Trustmarque is one of a select group of Microsoft Cyber Security Integration (CSI) partners in the UK.

This elite status recognises our deep technical expertise and proven success in deploying Microsoft security solutions like Defender, Sentinel, and Entra. It means we’re trusted by Microsoft to deliver high-impact security outcomes, faster, smarter, and with direct access to Microsoft engineering and funding programmes.

This award means Trustmarque can offer you: 

  •  Priority access to Microsoft-funded workshops and incentives
  • Expertise across all Microsoft Security domains
  • Faster deployment and measurable ROI on your Microsoft investment

Work with a partner trusted by Microsoft to secure your estate and accelerate your Zero Trust journey.

Frequently Asked Questions

Trustmarque Microsoft Security Services: Secure More with What You Already Own

Maximise your Microsoft 365 investment with Trustmarque’s expert-led security services.
From E3 to E5 optimisation and embedded SecureXpert advisory, to Sentinel deployments and Microsoft-funded workshops—Trustmarque helps you unlock the full potential of Microsoft’s security stack. As a Microsoft Cyber Security Integration partner, we deliver trusted, scalable solutions that reduce risk, cut costs, and accelerate your Zero Trust journey..

What is Microsoft SecureXpert and how can it help my organisation?
SecureXpert is Trustmarque’s embedded Microsoft security advisory service. It provides continuous access to certified consultants who help you optimise Microsoft Defender, Sentinel, Entra, and Purview, maximising the value of your Microsoft 365 investment. It’s ideal for organisations looking to improve security posture without the cost of a full managed service.
How does Trustmarque support Microsoft Sentinel deployments?
Trustmarque offers a proven 3-stage framework to help you deploy, configure, and optimise Microsoft Sentinel, the cloud-native SIEM and SOAR platform. We support migrations from legacy tools like Splunk, deliver custom dashboards, and ensure rapid time-to-value, especially for public sector and NHS customers.
What’s the benefit of moving from Microsoft 365 E3 to E5 for security?
Upgrading from E3 to E5 unlocks advanced security features like Microsoft Defender for Endpoint, Identity, and Office 365, as well as Microsoft Purview and Sentinel. Trustmarque helps you activate these tools and reduce reliance on third-party solutions, often cutting security tool spend by up to 44%.
What are Microsoft Security Workshops and who are they for?
Microsoft Security Workshops are funded engagements designed to help organisations assess and improve their security posture. Delivered by Trustmarque, these workshops cover topics like Zero Trust, threat protection, and SIEM + XDR. They’re ideal for IT and security leaders looking to build a roadmap using tools they already own.
Why choose a Microsoft Cyber Security Integration (CSI) partner?
As a Microsoft CSI partner, Trustmarque is recognised for its deep technical expertise and consistent delivery of Microsoft security solutions. This status gives customers access to exclusive Microsoft funding, faster deployments, and strategic guidance aligned with Microsoft’s Zero Trust and Secure Future initiatives.

Ready to transform your security?

Contact us