Rainbow is the trusted telecommunications provider to more than 5,000 business customers across the UK and Ireland both within the private and public sector.
33% of Northern Ireland’s Top 100 companies rely on Rainbow.
We’re confident that no one else in the market can offer the experience, value, and excellent customer service that have made Rainbow the number one choice.

“Operating within the public sector it is vital to keep costs to a minimum. Working with Rainbow has enabled us to get the best value for money on all our calls and lines without sacrificing the highest levels of customer service.”

“Always ensuring an excellent service, Rainbow, is entrusted with all our lines and broadband for our 14 sites across Northern Ireland. Rainbow sets the standard on customer service.”

“Employing hundreds of people across multiple sites we need a partner we can trust with our communications. For over 8 years Rainbow has been that company.”

“Our dedicated Account Manager is someone with whom we entrust entirely. The reliability of service and constant open lines of communication makes Rainbow like no other telecoms provider.”

“Year after year Rainbow continues to impress with their professionalism and reliability. Rainbow’s sound knowledge of the Northern Irish telecoms market means we always avail of the best service.”