Dutch builder, primarily known in the UK for coaches, both separate bodies and integrals. They do build buses though, and have even built double-deck service buses for both the UK and Ireland in the past!
Callinan 161-G-5131, Dublin Airport Bus Station, 18-01-2019
For reasons known to themselves, Comfort Delgro do not use their Citylink branding on the Limerick service, instead styling it as Eireagle by Citylink. As with the Galway serive, they hire in vehicles - in ther case of this service from Callinan, Claregalway. This Van Hool awaits departure time on the non-stop service.