Almost nine in ten businesses said they were trading at the end of May.
A new CSO survey found just over a quarter of respondents said they had resumed trading last month, after being forced to close due to covid-19.
Around 3 in 10 said they've seen an increase in turnover since the first phase of lifting restrictions in mid-May.
Meanwhile, almost three quarters of businesses said they had rearranged their workplace to allow for social distancing.
