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IT Support Services for Growing UK Businesses
IT support services that move your business forward — not just fix what’s broken
Most IT support systems revolve around reacting to problems.
At Nexus Open Systems, we take a different approach.
Backed by over 25 years of experience supporting thousands of UK businesses, we deliver proactive, security-led IT support services that align technology with your business goals. We help organisations reduce cyber risks, improve performance, back up data, and build confidence in their IT environments.
Whether you need a fully managed service or specialist support to strengthen your internal team, we provide the structure, expertise, and accountability to make IT a strategic advantage. Using an IT support audit, we’ll identify hidden hardware liabilities, review backup strategies, and assess your cyber security setup.
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Our IT Support Services
At Nexus, we offer a range of IT support services designed to meet the needs of businesses of all sizes. From Microsoft Office 365 guidance to antivirus protection and IT setups, we’ll help you prioritise risks and create managed IT support rather than holding you back.
Managed IT Support (Advanced)
Our Advanced Managed IT Support service is built for organisations that want dependable, proactive IT without the overhead of an internal team.
We don’t just respond to tickets – we continuously monitor, maintain, and improve your IT environment to keep your business running smoothly. We’ll help turn your IT system into a strategic advantage, benefiting the whole team and business.
Key features include:
- Unlimited remote and on-site support
- Proactive monitoring and maintenance
- Patch management and vulnerability scanning
- Strategic guidance through regular reviews
- Dedicated service delivery team.
This is IT support that keeps your business stable, secure, and productive.
Managed IT Support with 24/7 Security (Advanced Plus)
For organisations where security and resilience are critical, Advanced Plus takes IT support to the next level.
Alongside everything in Advanced, this service includes 24/7 Security Operations Centre (SOC) monitoring – detecting and responding to cyber threats in real time.
Additional capabilities include:
- 24/7 SOC and SIEM monitoring
- Threat detection and response
- Threat detection and response
- Enhanced compliance support (e.g. Cyber Essentials Plus)
- Advanced reporting and insights.
This is a fully managed, security-first IT service designed to protect your business 24/7.
IT Infrastructure Support (Guardian)
Already have an internal IT team?
Our Guardian Support service provides expert third-line infrastructure support, strengthening your internal capability without replacing it. We work alongside your team to support the foundations of your IT environment, including servers, networks, and cloud platforms.
Ideal for organisations that need:
- Specialist infrastructure monitoring and expertise
- Support for complex issues and projects, like Microsoft
- Additional capacity without hiring
- Confidence in critical systems.
Think of us as an extension of your team – providing depth where it matters most.
Strategic IT Projects
IT is constantly changing, as should your business.
At Nexus, we deliver strategic IT projects that modernise your infrastructure, improve performance, and reduce long-term risk.
From cloud migrations to infrastructure upgrades, we manage projects end-to-end — ensuring they’re delivered on time, on budget, and aligned to your wider business goals.
Typical projects include:
- Cloud migrations (Microsoft Azure and Microsoft 365)
- Network and infrastructure upgrades
- Server and storage modernisation
- Backup and disaster recovery solutions
- Security improvements and remediation programmes.
We don’t just deliver the project – we ensure it integrates seamlessly into your ongoing IT strategy.
VMware Migration and Infrastructure Modernisation
Rising VMware costs and licensing changes mean businesses are reshaping their infrastructure strategies.
With our VMware Migration Service and Exit Strategy Support, we help businesses review, optimise, and migrate away from VMware where appropriate – delivering more cost-effective and flexible alternatives without compromising performance or resilience.
Our approach is consultative, not prescriptive. We’ll help you understand whether to stay with VMware, explore alternative platforms, and build a clear roadmap forward.
Our migration expertise includes:
- VMware environment audits and cost analysis
- Migration to platforms such as Proxmox
- Backup and disaster recovery reconfiguration (e.g. Veeam)
- Performance optimisation and post-migration support.
The result is a modern, cost-efficient infrastructure that supports your business in the long term.
Strategic IT Consultancy (vCIO)
Technology decisions shouldn’t be made in isolation.
Our Virtual CIO (vCIO) service gives you access to senior-level strategic guidance – without the cost of a full-time hire. Our team will provide you with strategic technology guidance, helping you identify, plan, implement, test and review what needs to change.
We help you:
- Plan your IT roadmap
- Align technology with business goals
- Forecast budgets and investments
- Identify and reduce risk.
This ensures your IT supports where your business is going.
Why Businesses Choose Nexus as Their IT Support Company
Organisations partner with Nexus because they want more than just IT support. They want a company with years of experience in supporting mid-sized organisations across the UK.
At Nexus, we’ve helped businesses like Tamar Crossings and Cardo Group with 24/7 IT support systems, day-to-day IT support and strategic planning.
Here’s a little bit more about why UK businesses choose Nexus:
- Dedicated service delivery and strategic IT support
- Clear strategy and direction backed by ongoing IT maintenance
- Tailored support for both outsourced and internal IT teams
- An accredited partner in Microsoft software and ISO 27001.
Trusted by over 100 midsize businesses and non-profits across England & Wales.
See Our IT Support Solutions in Action
For years, we’ve supported UK businesses in improving how they use IT, from strengthening cyber security systems to modernising cloud infrastructure and setting up backup data.
Ready to Strengthen Your IT Support?
Whether you’re looking to fully outsource IT, enhance your internal team, or modernise your infrastructure, we’ll help you find the right approach.
Book a free IT review to understand where your current environment stands – and where it could be improved.
Free Consultation
FAQS: IT Support
What does your IT support include?
We provide managed IT support, infrastructure support, strategic IT consultancy, cloud services, and security-enhanced IT solutions.
What is outsourced IT support?
Outsourced IT support is where an external provider manages your IT systems, users, and infrastructure on your behalf. This can include day-to-day support, monitoring, security, and strategic guidance.
How is your IT support priced?
We offer fixed-service pricing depending on the level of support required, from fully managed IT services to specialist project-based support.
How does your process of getting IT support work?
It all starts with a free consultation, where we’ll discuss your current IT setup, your business and key goals. From here, we can book a free IT audit where we review the following:
- Cyber security
- Backup strategies
- Resilience and business continuity measures
- Device management.
We’ll review what’s working well, the risks your IT system presents, and the changes you need to implement. We’ll then discuss the best IT solution for your business.