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

Collaborative Working

On-Premise Collaboration Solutions

Secure communication. Greater control. On your terms.

At Trustmarque Ultima, we understand that not every organisation is ready to move fully to the cloud. Our on-premise collaboration solutions provide the control, reliability and performance needed to support your organisation, without compromising on flexibility or user experience.

Whether you're modernising legacy systems or integrating with hybrid environments, we help you build a communications infrastructure that supports your people and adapts to evolving business needs.

46.8%
of UK businesses still use SIP trunks for on-premise PBX connectivity.
£9.6B
SIP trunking market in 2024 shows strong demand for hybrid voice solutions.
2025
marks the ISDN switch-off, making VoIP and SIP migration urgent for legacy systems.

Benefits

Why Choose On-Premise with Trustmarque Ultima?

Maintain full control of your communications infrastructure while benefiting from enterprise-grade performance and security.

We tailor solutions to your environment, helping you achieve the flexibility of modern collaboration without compromising on compliance or control.

Services-enablement

Total Control

Maintain full ownership of your infrastructure, data, and compliance posture. Ideal for regulated industries or organisations with bespoke security needs.

Storage

Seamless Integration

Our solutions work with your existing systems, supporting a smooth transition from legacy PBX to SIP trunking, business broadband and VoIP services.

redstor-eliminate-downtime

Enterprise-Grade Resilience

With high-availability architecture and robust failover options, we ensure your communications stay online, no matter what.

solutions-empower-people

Expert-Led Delivery

From strategic planning to implementation and support, our specialists guide you every step of the way. We combine technical expertise with practical delivery experience to help you achieve the outcomes that matter most.

Our On-Premise Capabilities

Global Technology Partners

Our Collaboration Partners

Trustmarque Ultima works with a carefully selected group of technology partners to deliver secure, scalable on-premise collaboration solutions. These partnerships ensure we can support a wide range of customer needs, from traditional telephony to hybrid unified communications.

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See how Trustmarque Ultima can help you

Collaboration that delivers value today and flexibility for tomorrow

Optimise your existing communications environment while creating a clear path for future change.