25+ Years of Experience
Fixed Service Pricing
24/7 Monitoring
1000+ Fully Managed Users
25+ Years of Experience
Fixed Service Pricing
24/7 Monitoring
1000+ Fully Managed Users
Find out why forward-thinking businesses choose Nexus as their central connection to technology.
Our core values guide every interaction, shaping how we deliver technology solutions that reflect what matters most to UK businesses.
Expert: From cybersecurity and AI to infrastructure and cloud services, our expertise runs deep. Every person across our business plays a part in delivering enterprise-grade IT and support for mid-market organisations.
Dependable: We don’t just react, we anticipate. By being consistent, proactive, and accountable, we help businesses avoid disruption and deliver long-term stability, security, and value.
Supportive: We succeed by working side-by-side with our clients and each other. From guiding businesses through their technical challenges to supporting our community, we’re committed to being a trusted partner inside and outside of work.
Our team never stops learning and developing their skills – whether they’ve been with us for 10 months or 15 years.
Since our founding in 1998, we’ve built lasting relationships throughout the UK, maintaining the same leadership and vision while evolving our expertise alongside Microsoft’s technologies.
For over 25 years, we’ve been building deep connections across the South West’s business community.
With 1,000+ organisations served and still-growing relationships spanning decades, we’ve established ourselves as more than just another IT provider.
Our longevity isn’t just about time served – it’s about the trust we’ve earned through consistent delivery and local commitment that stays true to our founding principles.
From our ISO 27001 and Cyber Essentials Plus certifications to our status as a G-Cloud supplier since 2014, every credential we’ve earned reflects real expertise, validated by external auditors.
This enables us to guide strategic decisions with confidence born from experience, not experimentation.
We do more than just implement technology; through our Microsoft-native training approach, we ensure your team embraces every capability we enable, shaping how IT serves your business goals.
At the centre of your technology success sits a powerful network of connections we’ve spent decades nurturing. From Microsoft’s engineering teams to the Southwest Cyber Resilience Centre, we unite enterprise-grade capabilities with local, hands-on expertise.
We serve as your central technology hub, connecting your business ambitions with the right solutions through trusted partnerships.
No more juggling vendors. When you need support, guidance, or expertise of any kind, you know exactly where to turn – and we’ve got the connections to make it happen like that.
“With Nexus’s support, we’re more confident in our ability to navigate future challenges and capitalise on emerging opportunities.”
“Nexus Open Systems Ltd demonstrated an excellent track record delivering innovative IT services and cloud solutions while exceeding customer expectations.”
“…we were thoroughly impressed by the scoping and attention to detail they brought to this project. The expertise within Nexus’s team shone through every aspect.“
“Working with Nexus has fundamentally improved the way we manage our IT systems. Their comprehensive IT solutions have made my job much easier, providing us with a more feature-rich portfolio of services.”
“From implementing a unified communications system to supporting our cloud migration, Nexus has been a trusted partner every step of the way.”
“Working closely with Nexus, we were thoroughly impressed by the meticulous scoping and attention to detail they brought to this project.”
As a business, we’re passionate about supporting our local community and every year we choose a local charity to support. Our chosen charity for 2025 is Hospiscare. We do our very best to support this incredible charity in several ways.
We’re also sponsors – the Funder Games, which brings businesses together through sporting events activities across the summer, all with the aim of raising money for Hospiscare.
Our team are an adventurous bunch, especially when it comes to raising money for charity, and they actively engage in impactful fundraising events across the year. They’ve been jumping out of planes, cycling 150 miles in just two days and, more recently, three members of our team took on the mighty Three Peaks challenge and raised over £3,600 for our charity of the year.
Each member of our team does (on average) a day of fundraising or CSR activity per year, in paid time.
Our primary IT vendor has always been Microsoft. Over the years, this has proven a good strategic move, with Microsoft always being a front-runner in operating systems and business software.
We achieved ‘Gold Partner’ status early on, and are now certified Modern Work and Security partners. We maintain these specialisations alongside partnerships with other industry leaders.
Every business is different and so are its IT challenges.
Whether you’re exploring how to improve cybersecurity, strengthen backup and continuity, or get more from your Microsoft 365 environment, we’ll help you identify where to start.
Our consultants will take the time to understand your setup and share clear, practical recommendations — no jargon, no hard sell.
Simply complete the form and we’ll be in touch within 24 hours.
(Most suitable for organisations with 40+ IT users.)
“Nexus Open Systems Ltd demonstrated an excellent track record delivering innovative IT services and cloud solutions while exceeding customer expectations.”
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Originally from an engineering background, Stuart has been working in IT since 1995. He learnt about IT by building his own PCs, doing basic programming and gaming. He became one of the founder members of Nexus in 1998 and was appointed as Finance Director which he held until 2017. The role of Finance Director requires engagement in all aspects of the business, meaning he has acquired a wide range of skills, which he hopes keeps him balanced as Managing Director.
As a working father with a full–time working partner, Stuart has great appreciation for all the challenges faced by anyone bringing up children and he hopes that empathy is reflected in our culture at Nexus.
Stuart lives on the outskirts of Exeter with his partner and two boys. Outside of work Stuart enjoys spending time with his family, mountain biking and camping in Cornwall and France.
John works closely with Stuart, our Managing Director, ensuring Nexus delivers to both our clients and our employees. Having previously worked in two large organisations in their internal IT function, John joined Nexus in 2017.
John’s probably got less certifications than many, Prince and ITIL being his most recent and relevant, but he has bags of experience thanks to previous roles. His ability to see a problem, break it down and then rebuild it into something that will work, occasionally whilst the other person is completing their sentence, is one of his specialities.
John’s a YouTube–trained property renovator. He is also a member of the ever-expanding group of people at Nexus that own a campervan and enjoys using it regularly to explore the UK and Europe.
David is responsible for all aspects of the accounts for Nexus, and its related companies. This includes dealing with HMRC, auditors, customers and suppliers. He’s also a member of the Executive Team and enjoys getting involved with all that it entails.
David moved to Nexus in 2011, but before that he was the general manager of an import company supplying major supermarkets in the UK and Europe with their own branded stationery. At Nexus, hard work is acknowledged and appreciated so although David’s role can be high-pressured, it’s something he really enjoys about the job.
In his spare time, David loves to get involved with his local community. He’s an assistant scout leader, helps with coaching at the local cricket & rugby clubs and enjoys a playing 5-aside football once a week too!
Chris joined Nexus in 2009 after working for an online retailer who expanded rapidly in the early days of broadband internet. Chris managed the development and deployment of many Nexus software projects, before turning to work in Nexus’s internal business processes. His work on Nexus’s internal compliance involves subjects like data protection, client contracts and information security. He also selects and administers some of Nexus’s business systems.
Chris supports some of our digital marketing with website management, photography, content creation and proofing.
Outside Nexus, Chris is a sound engineer working on live music events. He also takes his campervan out for family weekends away around the South West.
Andrew joined Nexus at the start of 2018 and is responsible for the delivery of support to our customers. He brings a customer-centric focus to the way in which we work and enjoys building strong relationships with our customers. Andrew comes from a technical background but is constantly blown away by the depth of knowledge that our engineers have and the range of technologies we support and deliver.
Andrew is certified in ITIL & Prince2, and a host of certifications based on the internal systems. He is involved with all parts of the business including sales, technical projects & marketing, and joined the Executive Team in 2021.
When he’s not working you can normally find him in a DIY store or garden centre, planning his next BBQ – normally during the NFL season!
With over 15 years in technology marketing, Sarah joined Nexus in April 2023. As our Head of Marketing Sarah sets the marketing strategy for the business to help drive our growth. She has a strong background in lead generation campaigns, event management and brand building and ensures our communications remain consistent across all our channels.
Managing our agency relationship, writing our blogs, social posts and product marketing, Sarah also supports our business development team by hosting regular networking events for business leaders across the region.
Sarah joined our Executive team in July 2023 and continues to support our internal communications and overall business strategy.
Outside of work Sarah is kept busy with her two young children and her love for yoga, travel and hosting regular family and friend gatherings.
Having worked in an internal IT role previously, Anna became part of the Nexus team in 2008 on a flexible basis balancing work with wanting to enjoy being with her young family. Initially focusing on software testing and project support, Anna’s versatile skillset has enabled her to turn her hand to managing the people function fostering a positive and productive work environment for our staff. Not only does she ensure we’re compliant with employment laws, she aims to encourage diversity, equality and inclusion within the organisation.
Now her family has grown up, Anna gives her spare time to volunteering with Centre Stage Exmouth, a not-for-profit youth musical theatre company. She gets involved with chaperoning, show promotion and finding funding opportunities to support the charity’s endeavours to provide a platform for young people to explore and develop their talents in performing arts.
