It's emerged that workers at Abtran in Sligo have launched a ballot on possible industrial action.
The call centre company has offices in Finisklin and in Cork.
The workers, represented by the Independent Workers' Union, recently launched a pay claim against the company.
It's believed that this was not acknowledged by the company.
Abtran currently employs around 1,600 staff between their Sligo offices, and those working remotely.
The IWU has said that ballots are currently being sent to union members in Abtran's Sligo and Cork sites, and a result is expected by August 6th.
A spokesperson for Abtran said, "The IWU is an external organisation with which we are not engaged and which has no role in the collegiate and co-operative relationship that we have with our employees.
“Abtran is a responsible and caring employer with an overall commitment to investing in people, and with a positive and supportive environment for everyone throughout our organisation.
"It is our policy at all times to engage directly and collaboratively with all of our colleagues and we have clearly defined programmes in place which underpin this engagement.”
