A ballot on strike action among Section 39 workers will be counted today.
SIPTU began the vote at the start of the month for up to 5 thousand members in 21 community and voluntary organisations in a long running dispute over pay.
The government has been accused of failing to honour a pay agreement struck at Workplace Relations Commission in 2023.
Unions have been invited to talks at the WRC next month in a bid to resolve the row.