About Us

Our History

Zettabytes is a leading Managed Services Provider and IT Services Provider in Ireland. We are proud of our heritage as an Irish family business that has been delivering cutting-edge technology solutions since 1985.

Our founder, entrepreneur Declan Branagan, started the business as a one-person operation out of his garage. As the business expanded, he took on staff and opened our first Dublin office. We have since grown to become a trusted IBM reseller and provider of the latest and most advanced technology solutions to power businesses.

At Zettabytes, we specialize in providing Managed IT Services, IT Consulting, Cloud Computing, Data Management, Cybersecurity, and much more. We have been at the forefront of the IT revolution and played a key role in helping companies adopt new IT-based systems.

We are committed to providing our clients with the best possible customer service and IT solutions. If you’re looking for a reliable and experienced IT partner, look no further than Zettabytes. Contact us today to learn more about our services and how we can help your business succeed.

Branagan Business Supplies (as it was known then) was at the forefront of the IT revolution in the 1990s and 2000s, playing a key role in helping companies adopt new IT-based systems. The business, based in Dublin city centre, became an IBM reseller in 1993 and were also one of the first Amstrad re-sellers in Ireland. We have continued to seek out and provide our clients with the latest and most advanced technology solutions to power their businesses.


Today, proudly based in Swords, we provide a range of IT managed services and software to our customers. Our managed services provide businesses with the IT foundations you need to run your business, plus a Support Manager and experienced team of Support Engineers on hand whenever you need them. 

Our IT managed services team and support team have many years of experience in rapidly resolving customer issues and ensuring that problems are given long term solutions rather than short-term fixes. We offer remote technical support and onsite support across the Republic of Ireland and Northern Ireland. 

Our Software Team are experienced in supporting professional services businesses. They will help you choose the right software option for you – increasing your productivity and providing significant time savings.

Are you dedicated, motivated and knowledgeable? Join our Team

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What Makes Us Different?

What does this mean at ZettaBytes?

Firstly, it means that we don’t wait for you to come to us with an issue. We continuously monitor your system – fixing many potential problems before or as soon as they occur. Our consulting team will also give you regular advice on how to optimise your system, based on site-specific  learnings.

Secondly, it means that our research team is constantly scanning the market for new threats and new technology designed to deal with these threats. This means that you will never be behind the curve when it comes to best-practice technology. Trust eXpd8 to keep your business safe and help you optimise your IT functionality. 

Every member of our Sales Team started their career in a IT technical or support role. This means that they have a deep understanding of IT infrastructure and can design a solution specifically for your organisation. They go beyond the role of salesperson and become a trusted adviser to your business.

Our Support Desk team are highly qualified across hardware, software, servers, security and Microsoft implementation. They have a justified reputation within the industry for high levels of customer service and quality of care.

ZettaBytes staff are trained to understand an IT system as an entity – not just as components.

Instead of fixing issues, they provide long term solutions that will keep your business’s IT systems healthy and safe. These solutions are entirely customised around your office environment – physical infrastructure, flexible working requirements, company policies and more.

ZettaBytes conduct regular market research on current issues facing the IT industry and the solutions which are evolving to combat them.

ZettaBytes selects the highest quality products to work in partnership with and ensures that our clients always have the most up-to-date solutions.

Interested in working with us?

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Get In Touch


Zettabytes – IT Support
Unit 3C, Swords Business Park,
Swords, County Dublin, Ireland
Eircode: K67 C5Y6

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