IT Support Directory IT Support Directory
List Your Business

Stem Systems

In Antrim and Newtownabbey, Northern Ireland Serves the whole UK

Managed IT support and cloud services for businesses across the UK and Ireland.

Visit website Call 028 9099 8080 Write a review Updated 06 Sept 2026

From the provider

Stem Systems is a managed IT support and cloud services provider founded in 2004 by Stephen McLoughlin. Based in Mallusk, County Antrim, the company offers managed IT services including remote support, infrastructure management, cyber security, backup and disaster recovery, and voice solutions. They specialise in Microsoft Azure deployments and serve businesses ranging from 10 to over 200 users across the UK and Ireland.

The company combines on-premise IT solutions with cloud-first approaches and serves clients across multiple sectors including healthcare, legal, accountancy, manufacturing, and hospitality. Stem Systems operates with Microsoft-certified technical teams and has implemented ISO 27001 security-compliant deployments for customers. They also work alongside in-house IT teams for project work and additional resources.

With over 20 years of experience, the company manages more than 2,000 end users and over 200 Azure servers. The team is engineer-led, focusing on standardised, well-tested IT solutions.

Services Stem Systems offers

Managed IT support Day-to-day support, monitoring and maintenance for a fixed monthly fee. Cyber security Protecting systems and data from attack, and responding when something gets through. Networking and Wi-Fi Wired networks, Wi-Fi, firewalls and internet connections across your sites. Backup and disaster recovery Copies of your data held off-site, and a tested plan for getting back to work after a failure. VoIP and telecoms Phone systems that run over your internet connection, including numbers and call routing. 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.

Accreditations and partnerships

Microsoft Solutions Partner Microsoft partner level earned on measured skills and customer results.

Other IT support providers near Antrim and Newtownabbey

ANSEC IA Antrim and Newtownabbey No reviews yet Drakos Systems Armagh City, Banbridge and Craigavon No reviews yet INNOSEC Ards and North Down No reviews yet IT Support Belfast Antrim and Newtownabbey No reviews yet
All IT support in Antrim and Newtownabbey

Services Stem Systems offers

Managed IT support Day-to-day support, monitoring and maintenance for a fixed monthly fee. Cyber security Protecting systems and data from attack, and responding when something gets through. Networking and Wi-Fi Wired networks, Wi-Fi, firewalls and internet connections across your sites. Backup and disaster recovery Copies of your data held off-site, and a tested plan for getting back to work after a failure. VoIP and telecoms Phone systems that run over your internet connection, including numbers and call routing. 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.

Questions people ask about Stem Systems

What services does Stem Systems offer?
Stem Systems offers Managed IT support, Cyber security, Networking and Wi-Fi, Backup and disaster recovery, VoIP and telecoms, Microsoft 365, Cloud and hosting.
Where does Stem Systems provide IT support?
Stem Systems is based in Antrim and Newtownabbey and serves businesses across the UK.
Who is Stem Systems for?
The team is 6-15 people. The company was founded in 2004.

Stem Systems reviews

Reviews are moderated. How reviews work.

Be the first to review Stem Systems

Does your business use Stem Systems for IT support? Your experience helps other businesses choose with confidence.

Write the first review

Sign in or create an account

Sign in with your work email to review the IT support company your business uses, or to manage your own listing.

By continuing, you agree to our terms and acknowledge our privacy policy.