That depends on exactly what you mean by "company." Ireland's oldest beer recipe is Smithwick's which has been brewed since the fourteenth century. However, Smithwicks was purchased by Guiness in 1965 so if you mean bottling company the answer is Beamish.
Hires
partay!!!!!!!!!!! BEER!!!!!!
beer
The Miller Brewing Company produces over 40 million barrels of beer each year
Ireland's most famous and popular beer is Guinness. Ireland also has many other popular beers.
Hires
There is no "national beer" of Ireland. Ireland's most popular beer is Guinness. People like the taste of it.
Yuengling is the oldest brewery in the united states.
Guinness is the most popular beer in Ireland, and the beer Ireland is most famous for. However there are many other Irish beers that you will find in pubs in Ireland.
Beer is not a symbol of Ireland. Ireland has been connected with beer because of the many beers in Ireland, particularly the world famous Guinness. Lots of other countries produce a lot more beer than Ireland does. A lot of Irish people drink, which is another reason why people associate Ireland with beer.
Murphy's is a beer brewed in the city of Cork in Ireland. Tetley's is a beer brewed in the city of Leeds in England.
Ireland
The Hook Lighthouse on Hook Head in county Wexford, is the oldest in Ireland and one of the oldest in the world.
Guinness beer
beer!