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Nexus Open Systems

In Exeter, South West

Managed IT support and cyber security for mid-market businesses in Exeter and the South West.

Visit website Call 01392 205095 Write a review Updated 07 Sept 2026

From the provider

Nexus Open Systems is a Microsoft Solutions Partner providing managed IT support, cyber security and cloud solutions to mid-market businesses. Founded in 1998 and headquartered in Exeter with offices in Bristol, Cardiff and Birmingham, the company serves over 1000 organisations across England and Wales.

The company employs 50+ staff and specialises in Microsoft technologies, holding multiple Microsoft partner designations including Modern Work, Infrastructure, Digital & App Innovation, Data & AI, and Security. Additional certifications include ISO 27001 accreditation and Cyber Essentials Plus certification.

Nexus offers managed IT support packages combining helpdesk and on-site support with 24/7 monitoring, vulnerability scanning and proactive patch management. Services include vCIO strategic planning, Microsoft 365 and Azure deployment, managed cyber security with Security Operations Centre monitoring, penetration testing, business continuity and disaster recovery, and cloud backup. The company also provides Microsoft Copilot support and strategic IT projects including VMware migration services.

Clients connect directly to Microsoft-certified engineers via the service desk, with 81% of issues resolved on first contact.

Services Nexus Open Systems offers

Managed IT support Day-to-day support, monitoring and maintenance for a fixed monthly fee. Helpdesk and remote support A support desk your staff contact by phone, email or portal when something stops working. On-site support Engineers who travel to your offices for the work that cannot be done remotely. Cyber security Protecting systems and data from attack, and responding when something gets through. Cyber Essentials Preparing a business for Cyber Essentials certification and running the assessment. Microsoft 365 Setting up and running Microsoft 365 email, files, Teams and user accounts. Cloud and hosting Moving servers and applications to hosted infrastructure, then running them there. Backup and disaster recovery Copies of your data held off-site, and a tested plan for getting back to work after a failure. Projects and consultancy One-off work such as an office move, a migration or a new system rollout. IT strategy and vCIO Regular planning sessions on budget, risk and what to change over the next year. AI consultancy Advice on where AI tools such as Microsoft Copilot fit a business, and help rolling them out safely.

Accreditations and partnerships

ISO 27001 International standard for managing information security, audited by a certification body.
Microsoft Solutions Partner Microsoft partner level earned on measured skills and customer results.
Cyber Essentials Plus Cyber Essentials with an independent technical audit.

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Services Nexus Open Systems offers

Managed IT support Day-to-day support, monitoring and maintenance for a fixed monthly fee. Helpdesk and remote support A support desk your staff contact by phone, email or portal when something stops working. On-site support Engineers who travel to your offices for the work that cannot be done remotely. Cyber security Protecting systems and data from attack, and responding when something gets through. Cyber Essentials Preparing a business for Cyber Essentials certification and running the assessment. Microsoft 365 Setting up and running Microsoft 365 email, files, Teams and user accounts. Cloud and hosting Moving servers and applications to hosted infrastructure, then running them there. Backup and disaster recovery Copies of your data held off-site, and a tested plan for getting back to work after a failure. Projects and consultancy One-off work such as an office move, a migration or a new system rollout. IT strategy and vCIO Regular planning sessions on budget, risk and what to change over the next year. AI consultancy Advice on where AI tools such as Microsoft Copilot fit a business, and help rolling them out safely.

Questions people ask about Nexus Open Systems

What services does Nexus Open Systems offer?
Nexus Open Systems offers Managed IT support, Helpdesk and remote support, On-site support, Cyber security, Cyber Essentials, Microsoft 365, Cloud and hosting, Backup and disaster recovery, Projects and consultancy, IT strategy and vCIO, AI consultancy.
Where does Nexus Open Systems provide IT support?
Nexus Open Systems is based in Exeter and also serves Birmingham, City of Bristol, Cardiff, Plymouth, Somerset.
Who is Nexus Open Systems for?
The team is 51-200 people. The company was founded in 1998.

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