Largest Irish companies by market cap

Companies: 44 total market cap: £859.22 B

Rank	Name	Market Cap	Price	Today	Country
1	Accenture ACN	£189.86 B	£303.55	1.38%	🇮🇪 Ireland
2	Eaton ETN	£96.26 B	£243.59	0.20%	🇮🇪 Ireland
3	Medtronic MDT	£89.01 B	£69.36	1.08%	🇮🇪 Ireland
4	Trane Technologies TT	£64.86 B	£289.19	1.06%	🇮🇪 Ireland
5	Cement Roadstone Holding CRH	£54.72 B	£80.91	3.32%	🇮🇪 Ireland
6	Johnson Controls JCI	£46.25 B	£70.07	1.79%	🇮🇪 Ireland
7	Flutter Entertainment FLUT	£40.28 B	£226.96	1.37%	🇮🇪 Ireland
8	Experian EXPGF	£35.54 B	£38.39	0.00%	🇮🇪 Ireland
9	Ingersoll Rand IR	£27.57 B	£68.44	1.26%	🇮🇪 Ireland
10	Smurfit Westrock SW	£22.20 B	£42.67	2.21%	🇮🇪 Ireland
11	Ryanair RYAAY	£19.23 B	£35.91	2.11%	🇮🇪 Ireland
12	Seagate Technology STX	£17.13 B	£80.96	0.35%	🇮🇪 Ireland
13	Steris STE	£17.11 B	£174.15	0.01%	🇮🇪 Ireland
14	AerCap AER	£15.83 B	£83.44	0.32%	🇮🇪 Ireland
15	Kerry Group KRZ.IR	£13.27 B	£80.09	0.21%	🇮🇪 Ireland
16	ICON plc ICLR	£13.14 B	£159.21	5.50%	🇮🇪 Ireland
17	AIB Group (Allied Irish Banks) A5G.IR	£12.25 B	£5.17	0.24%	🇮🇪 Ireland

18	Aptiv APTV	£12.23 B	£53.34	1.44%	🇮🇪 Ireland
19	Kingspan Group KRX.IR	£11.40 B	£60.67	9.74%	🇮🇪 Ireland
20	James Hardie Industries JHX	£11.13 B	£25.65	0.40%	🇮🇪 Ireland
21	Allegion ALLE	£8.65 B	£100.26	0.42%	🇮🇪 Ireland
22	Bank of Ireland Group BIRG.IR	£8.56 B	£8.45	1.14%	🇮🇪 Ireland
23	Jazz Pharmaceuticals JAZZ	£6.51 B	£107.79	1.25%	🇮🇪 Ireland
24	DCC plc DCC.L	£5.43 B	£53.95	0.56%	🇮🇪 Ireland
25	Alkermes ALKS	£4.55 B	£28.00	0.95%	🇮🇪 Ireland
26	Glanbia plc GL9.IR	£3.04 B	£11.77	0.28%	🇮🇪 Ireland
27	Perrigo PRGO	£2.71 B	£19.91	1.77%	🇮🇪 Ireland
28	Grafton Group GFTU.L	£1.70 B	£8.65	0.12%	🇮🇪 Ireland
29	Adient ADNT	£1.14 B	£13.59	1.00%	🇮🇪 Ireland
30	Dole PLC DOLE	£1.01 B	£10.72	0.52%	🇮🇪 Ireland
31	Cimpress CMPR	£0.98 B	£39.52	3.96%	🇮🇪 Ireland
32	Cosmo Pharmaceuticals C43.F	£0.92 B	£57.53	1.42%	🇮🇪 Ireland
33	Dalata Hotel Group DHG.IR	£0.83 B	£3.86	0.32%	🇮🇪 Ireland
34	GH Research GHRS	£0.68 B	£11.04	0.07%	🇮🇪 Ireland
35	Prothena PRTA	£0.64 B	£12.03	1.80%	🇮🇪 Ireland
36	Avadel Pharmaceuticals AVDL	£0.64 B	£6.68	0.71%	🇮🇪 Ireland
37	ADS-TEC Energy ADSE	£0.63 B	£11.97	3.20%	🇮🇪 Ireland
38	Navitas Semiconductor NVTS	£0.50 B	£2.68	1.16%	🇮🇪 Ireland
39	kneat.com FOBK.F	£0.33 B	£3.63	0.45%	🇮🇪 Ireland
40	Amarin Corporation AMRN	£0.19 B	£0.47	0.49%	🇮🇪 Ireland
41	Mural Oncology MURA	£56.78 M	£3.33	1.17%	🇮🇪 Ireland
42	Iterum Therapeutics ITRM	£40.64 M	£1.18	0.68%	🇮🇪 Ireland
43	Trinity Biotech TRIB	£16.67 M	£0.61	0.03%	🇮🇪 Ireland
44	Brera Holdings BREA	£6.51 M	£0.51	1.31%	🇮🇪 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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