Largest Irish companies by market cap

Companies: 42 total market cap: €1.010 T

Rank	Name	Market Cap	Price	Today	Country
1	Seagate Technology STX	€154.30 B	688,18 €	5.66%	🇮🇪 Ireland
2	Eaton ETN	€135.69 B	349,47 €	0.94%	🇮🇪 Ireland
3	Medtronic MDT	€93.04 B	72,69 €	0.43%	🇮🇪 Ireland
4	Trane Technologies TT	€90.77 B	410,62 €	1.06%	🇮🇪 Ireland
5	Accenture ACN	€76.76 B	125,44 €	0.72%	🇮🇪 Ireland
6	Johnson Controls JCI	€74.87 B	122,72 €	0.57%	🇮🇪 Ireland
7	Cement Roadstone Holding CRH	€60.08 B	89,92 €	2.53%	🇮🇪 Ireland
8	Ryanair RYAAY	€28.39 B	54,67 €	5.71%	🇮🇪 Ireland
9	Experian EXPGF	€28.22 B	31,89 €	2.61%	🇮🇪 Ireland
10	Ingersoll Rand IR	€28.11 B	71,85 €	3.00%	🇮🇪 Ireland
11	AIB Group (Allied Irish Banks) A5G.IR	€21.77 B	10,26 €	1.82%	🇮🇪 Ireland
12	Smurfit Westrock SW	€20.29 B	38,70 €	1.05%	🇮🇪 Ireland
13	AerCap AER	€20.24 B	128,41 €	0.13%	🇮🇪 Ireland
14	Steris STE	€18.54 B	190,33 €	1.49%	🇮🇪 Ireland
15	Bank of Ireland Group BIRG.IR	€16.42 B	17,29 €	2.34%	🇮🇪 Ireland
16	Flutter Entertainment FLUT	€16.15 B	93,10 €	1.61%	🇮🇪 Ireland
17	Kingspan Group KRX.IR	€13.79 B	76,65 €	1.54%	🇮🇪 Ireland

18	Jazz Pharmaceuticals JAZZ	€13.56 B	216,27 €	2.21%	🇮🇪 Ireland
19	Kerry Group KRZ.IR	€13.24 B	82,85 €	2.01%	🇮🇪 Ireland
20	James Hardie Industries JHX	€13.09 B	22,56 €	4.23%	🇮🇪 Ireland
21	ICON plc ICLR	€11.45 B	148,53 €	0.00%	🇮🇪 Ireland
22	Aptiv APTV	€10.62 B	50,21 €	3.02%	🇮🇪 Ireland
23	Allegion ALLE	€10.30 B	119,91 €	1.61%	🇮🇪 Ireland
24	Alkermes ALKS	€7.67 B	46,06 €	1.50%	🇮🇪 Ireland
25	DCC plc DCC.L	€6.31 B	73,87 €	0.00%	🇮🇪 Ireland
26	Glanbia plc GLB.L	€5.68 B	23,10 €	0.00%	🇮🇪 Ireland
27	Glanbia plc GL9.IR	€5.53 B	22,90 €	1.97%	🇮🇪 Ireland
28	Navitas Semiconductor NVTS	€2.43 B	10,01 €	2.51%	🇮🇪 Ireland
29	Grafton Group GFTU.L	€2.20 B	11,11 €	0.82%	🇮🇪 Ireland
30	Cimpress CMPR	€2.17 B	89,86 €	2.34%	🇮🇪 Ireland
31	GH Research GHRS	€1.72 B	25,08 €	1.44%	🇮🇪 Ireland
32	Adient ADNT	€1.35 B	17,29 €	3.98%	🇮🇪 Ireland
33	Perrigo PRGO	€1.29 B	9,37 €	3.94%	🇮🇪 Ireland
34	Dole PLC DOLE	€1.19 B	12,60 €	0.55%	🇮🇪 Ireland
35	Cosmo Pharmaceuticals C43.F	€1.18 B	69,10 €	0.58%	🇮🇪 Ireland
36	ADS-TEC Energy ADSE	€0.78 B	10,48 €	0.00%	🇮🇪 Ireland
37	Prothena PRTA	€0.39 B	7,57 €	2.24%	🇮🇪 Ireland
38	kneat.com FOBK.F	€0.38 B	3,98 €	0.51%	🇮🇪 Ireland
39	Amarin Corporation AMRN	€0.25 B	12,18 €	1.69%	🇮🇪 Ireland
40	Brera Holdings SLMT	€48.86 M	4,44 €	5.75%	🇮🇪 Ireland
41	Trinity Biotech TRIB	€5.93 M	0,29 €	9.50%	🇮🇪 Ireland
42	Iterum Therapeutics ITRM	€1.39 M	0,02621 €	0.00%	🇮🇪 Ireland

This is the list of the largest companies in Ireland by market capitalization. Only the top companies with headquarters in Ireland are shown in this list and companies that are not publicly traded are excluded. The ranking and the market cap data shown on this page are updated daily.

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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