Nexus Open Systems Ltd

Nexus Guardian for Business

Nexus provide fixed-cost support services for your IT team and your growing business. Guardian for Business is our proactive Enterprise Managed Support service. We take control of your infrastructure management and maintenance. Enable your team to focus on business strategy, procurement and direction instead of day-to-day infrastructure management.


  • 3rd Line Service Desk Facility providing expertise
  • Proactive Monitoring and Alerting
  • Backup and Replication Systems Management
  • Optional 'Outside Business Hours' or 24/7 cover for critical support
  • Dedicated Account Management with Strategic Planning and Reviews
  • 3rd Line Remote fault diagnostics and support for your organisation
  • On-site fault diagnostics and support for your organisation
  • Infrastructure firmware updates and Patch management
  • Monthly Ticket Reports and Quarterly Performance Reports
  • Dedicated Service Level Agreement (SLA) with clear response matrix


  • Fixed cost proactively managed IT service
  • Free up essential management and resource time
  • Reduce downtime and avoid the break/fix cycle
  • Strategic ongoing planning and clear roadmap for technology
  • Clear support incident flow so you're fully aware of progress
  • Commitment to continually drive improvements for your business
  • Full onboarding process to ensure seamless support
  • Service Quality processes to ensure successful delivery
  • Unified and proven technical consultancy and support
  • Extensive consultancy experience of working with public sector clients


£152.89 a server a month

  • Education pricing available

Service documents

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G-Cloud 13

Service ID

4 0 6 3 9 0 6 5 0 7 6 3 1 5 8


Nexus Open Systems Ltd Stuart Wilson
Telephone: 01392 205095


Planning service
How the planning service works
Nexus understand that an effective IT cloud strategy should be intrinsically aligned to operational and financial restrictions. Our IT consultants are able to work closely with you by employing a multi-faceted approach to help you to develop a strategy and governance structure that will use technology to improve the operation and management of your organisation.

In defining an IT cloud strategy, we help clients to identity gaps between their current IT capabilities and their current operation or future direction. Working in collaboration with your IT team we can help to design a cloud technology roadmap, identifying initiatives that enable you to reach defined goals. Whether you are looking to implement an IT solution, develop bespoke software, create a website or launch a SharePoint intranet, we can guide you through the whole process.

To successfully execute and manage an IT strategy, your organisation needs an IT governance framework that defines how users and operators can interact with your business technology systems and infrastructure. Our consultants can help organisations to create IT governance procedures that mitigate risks by managing user-access rights, operating protocols and change-management policies.
Planning service works with specific services


Training service provided
How the training service works
Your most valuable asset is a skilled workforce. Nexus offers a wide range of authorised and bespoke IT training courses catering for both end users and technical personnel. At Nexus we know how critical it is for organisations of all sizes to have effective IT and communication systems that integrate with your daily business processes.

Efficiency is an essential part of a successful organisation, so it is imperative that your personnel maximise your IT investment by mastering the hardware and software solutions that you deploy.

It's a proven fact that effective IT training not only equips individuals with the skills to be more productive in the workplace but also promotes confidence and loyalty. Your most valuable asset is your skilled workforce.

Training courses can be delivered at the Nexus IT Training and Exam Centre in Exeter or at your premises. Courses are available for most industry-standard software products, however bespoke training courses are also available for specialist software and other hardware and computer network infrastructure products.
Training is tied to specific services

Setup and migration

Setup or migration service available
How the setup or migration service works
Working closely with your IT team, we fine tune our cloud deployment and migration proposals to plot the best route towards a successful business systems upgrade or the installation and configuration of new technology. Our cloud service migration proposals incorporate a clear definition of any work that Nexus or the customer may perform, outside of normal working hours if necessary to minimise any interruption of services.

When the cloud service migration project has been successfully completed we don't just leave you with your new service. We document important changes to your administration and management processes. All of the IT systems migration plans we produce include optional training programmes, support and maintenance or managed IT services.
Setup or migration service is for specific cloud services

Quality assurance and performance testing

Quality assurance and performance testing service
How the quality assurance and performance testing works
Best practice configuration, quality assurance and performance testing are at the heart of the cloud support services which Nexus provide for Microsoft products.

Through industry recognised training and certification, combined with real-world deployment experience, our cloud support team can pass on the latest best-practice configuration and deployment methodology to make your cloud service projects deliver positive outcomes and results.

Security testing

Security services

Ongoing support

Ongoing support service
Types of service supported
  • Buyer hosting or software
  • Hosting or software provided by your organisation
  • Hosting or software provided by a third-party organisation
How the support service works
Nexus offer a comprehensive Cloud Support Service for all Cloud Services. Nexus deliver a comprehensive range of IT support and maintenance services supplying over 1,000 small, medium and enterprise-sized customers throughout the UK, 24 hours a day, 7 days a week. We have a series of support and maintenance options including:

Nexus Managed IT Service Advanced
Nexus Managed IT Service Premier
Nexus Guardian for IT Pros
Nexus Guardian for Business
Block Hour contracts
24/7 Technical Service Desk and Remote Support

Service scope

Service constraints
Delivered 8am to 6pm Monday to Friday
Remote environment health checks and reports
Remote patch management
Remote configuration changes

User support

Email or online ticketing support
Email or online ticketing
Support response times
Standard SLA is for 2 hours response for Critical issues; 4 hours response for Major issues and 8 hours response for Minor issues.
User can manage status and priority of support tickets
Online ticketing support accessibility
WCAG 2.1 A
Phone support
Phone support availability
9 to 5 (UK time), Monday to Friday
Web chat support
Web chat
Web chat support availability
9 to 5 (UK time), Monday to Friday
Web chat support accessibility standard
WCAG 2.1 A
Web chat accessibility testing
Not documented
Support levels
Support Levels: Nexus Managed IT Service Advanced; Nexus Managed IT Service Premier; Nexus Guardian for IT Pros; Nexus Guardian for Business - Support cost: Pricing is dependant on customers infrastructure and environment - Account Management: A dedicated Technical Account Manager is assigned to each customer and our Service Desk team includes Cloud Support Engineers.


Supplier type
Not a reseller

Staff security

Staff security clearance
Conforms to BS7858:2019
Government security clearance
Up to Security Clearance (SC)

Standards and certifications

ISO/IEC 27001 certification
Who accredited the ISO/IEC 27001
ISO/IEC 27001 accreditation date
What the ISO/IEC 27001 doesn’t cover
Our ISO 27001 certification relates to the information security management system and not to the products or services of our organisation. The certificate reference number, the mark of the Certification Body and/or the accreditation mark may not be shown on products or stated in documents regarding products or services.
ISO 28000:2007 certification
CSA STAR certification
PCI certification
Cyber essentials
Cyber essentials plus
Other security certifications

Social Value

Fighting climate change

Fighting climate change

The environmental benefits of our G-Cloud Service provision are substantiated by Microsoft’s own studies and commitments towards climate change.
A 2018 study found that using the cloud platforms can be up to 93% more energy efficient and up to 98% more carbon efficient than on-premises solutions.
Real sustainability requires solutions that address wastefulness at every level of a business. Hosting on the cloud is more environmentally friendly and results in less of a carbon footprint.
Cloud infrastructures support environmental proactivity, powering virtual services rather than physical products and hardware, and cutting down on paper waste, improving energy efficiency, and (given that it allows employees access from anywhere with an internet connection) reducing commuter-related emissions. Independent reports predict that data centre energy consumption would drop by 31% from based on the adoption of cloud computing and other virtual data options.
Covid-19 recovery

Covid-19 recovery

As a member of the COVID-19 High Performance Computing Consortium, Microsoft is helping researchers accelerate their understanding of the virus and the development of treatments and vaccines through two major initiatives; HPC Consortium and AI for Health.
The COVID-19 HPC Consortium encompasses computing capabilities from some of the most powerful and advanced computers in the world. Microsoft hope to empower researchers around the world to accelerate understanding of the COVID-19 virus and the development of treatments and vaccines to help address infections. Consortium members manage a range of computing capabilities that span from small clusters to some of the very largest supercomputers in the world.
AI for Health is a new $60 million, five-year philanthropic program from Microsoft, created to empower non-profits, researchers, and organizations tackling some of the toughest challenges in global health. Microsoft are providing access to AI and expertise in these areas; Accelerating medical research to advance the prevention, diagnoses, and treatment of diseases, increasing our shared understanding of health and longevity to protect against global health crises, reducing health inequity and improving access to care for underserved populations and supporting fundamental research capabilities, including data collaboratives and differential privacy.


The primary benefits of Microsoft's cloud services are the transfer of ownership of compliance and maintenance of cloud infrastructure and its security and that IT Managers and business owners no longer need to be concerned about those elements of their IT systems once in a Microsoft cloud platform. This has a massive positive impact on wellbeing of employees within organisations across the world.


£152.89 a server a month
Discount for educational organisations

Service documents

Request an accessible format
If you use assistive technology (such as a screen reader) and need versions of these documents in a more accessible format, email the supplier at Tell them what format you need. It will help if you say what assistive technology you use.