Our group of 6 adults traveling in early May 2025 is looking to find a private driver/service to take us from Dublin to meet our tour group in Shannon. We are staying in Dublin for 3 days prior, so it is not directly from the Dublin airport. I know there isn't rail service to Shannon, we have checked that option. We really favor a private driver/van rather than a motor coach/bus. Let me know if you know of any in Dublin who provide this service. thank you.
You could contact www.gettransfer.com which gets quotes from several shuttle operators.
While you can't take the train to Shannon, you can take the train to Limerick which is very close.
Try John Sheddy at http://www.atlanticwayexcursions.ie/
We used him to transfer from Galway to Doolin and a few days later from Doolin to Shannon. At one point I was contemplating Dublin to Shannon so I know he does the route.
Easy to communicate with, prompt and reliable for us in August 2024.