Growth in Ireland's service industry hit a nine-year high in July - the sector now has experienced three years of continued expansion.
The Investec Purchasing Managers' Index rose to 63.4 in July - up from 63.3 in June. Any figure above 50 indicates growth.
These results put Ireland significantly ahead of the eurozone average of 53.7.
The new business sub-index rose to 66.2, a significant jump from 63.7 in the previous month. July's new business growth was the third highest monthly performance since the index started in 2000.
Investec Ireland chief economist Philip O'Sullivan reflected on the new optimism in the sector: "Given the improving dynamics around the domestic economy and the continued tailwind to exports from favourable FX moves, we believe that this positivity is well-founded."
The Spanish economy is also showing signs of recovery - its services PMI has climbed to 59.7, strong tourism figures have made businesses more optimistic about the country's performance in the second half of 2015.
PMI data from France and Italy came in below expectations - while Germany's figures were broadly inline with forecasts, at 53.8.