Why Three for Business

Reliable connectivity for your business needs.



Three provides end-to-end solutions, delivering the products, services and expertise you need to transform your business. Three Business customers get support from our award-winning Customer Care Centre in Limerick, and benefit from Three’s innovative approach to ICT.

We drive business growth through:

Better mobility, connectivity, communications and collaboration.

Improved efficiency and productivity.

Flexible operations and technology that scales to your business needs.



Three does more for business

That's why we are number one* for:

*Behaviour and Attitudes from CX360 Research (Q3, 2022).

Why partner
with Three?
Peace of mind

Enjoy reliable service from a trusted, proven SME solutions provider.

Single point of contact

Combine your services support and billing with Three for easier management.

Wide range of solutions

Digital and ICT solutions to meet your business or office needs.

Free resources

Stay up to date with free SME case studies, guides and best practices.

Exclusive promotions for SMEs

Get the latest deals for mobile, broadband and more online at Three Business.




Three is Ireland’s largest mobile telecommunications provider with 45.9% market share with over 4.4 million customers (as of December 2023). We’ve increased our 5G population coverage to over 90% so more than 9 in 10 people can experience even faster speeds. Our network is built for data with 99% 3G & 4G nationwide coverage and Business options for almost everyone in the country. We carry over 50% of Ireland’s mobile data – more than all other operators combined.

Three head office is in Dublin and Customer Care Centre is in Limerick. We operate 61 retail stores and employ over 1,400 people across Ireland.

Three has invested over €2 billion in building its Irish network. In 2014, we acquired O2 Ireland giving us access to a wider array of mobile infrastructure and an expanded ICT product offering and service capability.


Our Parent Company

CK Hutchison

Three is owned by renowned multinational technology innovator CK Hutchison Holdings (CK Hutchison). Its diverse businesses employ approximately 300,000 people in over 50 countries worldwide. CK Hutchison has five core businesses - ports and related services, retail, infrastructure, energy and telecommunications.




Company name

Three Ireland (Hutchison) Limited

Company Number


Place of Registration


Registered Address

28/29 Sir John Rogerson's Quay, Dublin 2, Ireland


Phone: +353-1-5426300 Fax: +353-1-5426301

VAT Number