Dublin works for corporate team building because the city is compact, English-speaking, and pairs a dense craft-and-pub culture with countryside (Wicklow, Howth) only 35–75 minutes away. Small groups thrive around St Stephen's Green and Merrion Square, mid-sized groups in the Docklands and Ballsbridge, large groups at Croke Park or the Convention Centre Dublin. Best seasons are May–September. Avoid mid-March (St Patrick's mayhem) and Six Nations weekends in February. Twelve hotel-anchored venues plus eighteen Irish activities below, sorted by team size.