The HSE has a social work service that you can contact if you have a concern about a vulnerable adult who may be at risk of abuse. There are nine teams located throughout the country.
You can contact the Galway based HSE Safeguarding service at Safeguarding.email@example.com and on 091-748432.
You can also contact Safeguarding Ireland on 061 461 358 or at firstname.lastname@example.org.
See more here.