Nexus Open Systems Ltd

Nexus Open Systems is a managed IT services provider based in the United Kingdom, operating from offices in Exeter, Bristol, Cardiff, and Birmingham. The company serves government organisations, charities, and private sector businesses across England and Wales, with a client base of over 100 midsize organisations and non-profits.

The company holds ISO 27001 accreditation and Cyber Essentials Plus certification. Nexus is an accredited Microsoft Solutions Partner with three designations in the AI Cloud Partner Program covering Modern Work, Infrastructure (Azure), and Security. The company subscribes to Microsoft Advanced Support for Partners, providing access to senior Microsoft cloud engineers for escalation and resolution of technical issues. The business has been operating for 25 years, with its original directors continuing to guide operations.

Services and Capabilities

Nexus provides managed IT support services with certified engineers available from first contact through the service desk. The company offers virtual Chief Information Officer (vCIO) services, delivering strategic IT planning and technology roadmap development for client organisations. Technical account management includes continuous environment monitoring, scheduled technology refreshment planning, and performance reporting. The company conducts regular business reviews and strategic assessments, including environment scoring and improvement roadmaps. Technology budget forecasting and vendor relationship management are provided to streamline client technology ecosystems. Microsoft 365 environment optimisation and cloud migration support form part of the service portfolio. The company implements unified communications systems and manages workplace collaboration infrastructure. Process automation identification and implementation services aim to reduce manual work and increase operational efficiency.

Industry Focus

Nexus serves public infrastructure organisations, having provided telephony upgrades and IT support systems for the Tamar Bridge operation, where resilient IT systems are required for continuous public service delivery. The company works with housing associations, as evidenced by its engagement with Cornerstone Housing to improve IT system management and expand service portfolios. Legal sector clients include Amicus Law, for whom the company provides strategic technology guidance. The charity and non-profit sector represents a significant portion of the client base, including work with the Soil Association on unified communications and cloud migration projects. Private sector clients include Cardo Group and Williams Southern, for whom infrastructure updates and IT environment modernisation have been delivered.