Largest Irish companies by market cap

Companies: 45 total market cap: £842.50 B

Rank	Name	Market Cap	Price	Today	Country
1	Accenture ACN	£183.39 B	£293.14	1.56%	🇮🇪 Ireland
2	Eaton ETN	£106.91 B	£270.54	0.74%	🇮🇪 Ireland
3	Medtronic MDT	£83.13 B	£64.83	1.30%	🇮🇪 Ireland
4	Trane Technologies TT	£67.89 B	£301.74	0.06%	🇮🇪 Ireland
5	Cement Roadstone Holding CRH	£50.79 B	£74.92	0.62%	🇮🇪 Ireland
6	Johnson Controls JCI	£42.72 B	£64.52	2.45%	🇮🇪 Ireland
7	Flutter Entertainment FLUT	£37.71 B	£211.86	1.32%	🇮🇪 Ireland
8	Experian EXPGF	£33.58 B	£35.77	0.00%	🇮🇪 Ireland
9	Ingersoll Rand IR	£29.75 B	£73.84	1.12%	🇮🇪 Ireland
10	Smurfit Westrock SW	£22.17 B	£42.63	4.10%	🇮🇪 Ireland
11	Ryanair RYAAY	£19.34 B	£35.77	0.47%	🇮🇪 Ireland
12	Steris STE	£16.38 B	£166.02	1.54%	🇮🇪 Ireland
13	Seagate Technology STX	£14.77 B	£69.86	0.26%	🇮🇪 Ireland
14	AerCap AER	£14.35 B	£75.64	1.56%	🇮🇪 Ireland
15	ICON plc ICLR	£13.70 B	£166.03	1.42%	🇮🇪 Ireland
16	Kerry Group KRZ.IR	£13.01 B	£76.85	0.05%	🇮🇪 Ireland
17	Aptiv APTV	£11.06 B	£47.10	3.25%	🇮🇪 Ireland

18	James Hardie Industries JHX	£10.95 B	£25.35	0.70%	🇮🇪 Ireland
19	Kingspan Group KRX.IR	£10.74 B	£58.47	0.28%	🇮🇪 Ireland
20	AIB Group (Allied Irish Banks) A5G.IR	£10.11 B	£4.31	1.34%	🇮🇪 Ireland
21	Allegion ALLE	£9.19 B	£105.76	1.19%	🇮🇪 Ireland
22	Bank of Ireland Group BIRG.IR	£7.26 B	£7.24	0.07%	🇮🇪 Ireland
23	Jazz Pharmaceuticals JAZZ	£5.94 B	£98.39	0.10%	🇮🇪 Ireland
24	DCC plc DCC.L	£5.25 B	£52.00	0.58%	🇮🇪 Ireland
25	Alkermes ALKS	£3.84 B	£23.77	0.87%	🇮🇪 Ireland
26	Glanbia plc GL9.IR	£2.89 B	£11.19	0.22%	🇮🇪 Ireland
27	Perrigo PRGO	£2.81 B	£20.60	0.08%	🇮🇪 Ireland
28	Keywords Studios KWS.L	£2.07 B	£24.65	0.08%	🇮🇪 Ireland
29	Grafton Group GFTU.L	£1.91 B	£9.68	0.67%	🇮🇪 Ireland
30	Cimpress CMPR	£1.49 B	£59.38	0.69%	🇮🇪 Ireland
31	Adient ADNT	£1.14 B	£13.48	2.38%	🇮🇪 Ireland
32	Dole PLC DOLE	£1.04 B	£10.96	0.80%	🇮🇪 Ireland
33	Cosmo Pharmaceuticals C43.F	£0.86 B	£52.21	1.63%	🇮🇪 Ireland
34	Dalata Hotel Group DHG.IR	£0.84 B	£3.83	0.44%	🇮🇪 Ireland
35	Avadel Pharmaceuticals AVDL	£0.79 B	£8.25	1.98%	🇮🇪 Ireland
36	Prothena PRTA	£0.65 B	£12.18	4.93%	🇮🇪 Ireland
37	ADS-TEC Energy ADSE	£0.57 B	£11.19	0.29%	🇮🇪 Ireland
38	Navitas Semiconductor NVTS	£0.47 B	£2.54	12.81%	🇮🇪 Ireland
39	kneat.com FOBK.F	£0.30 B	£3.19	1.04%	🇮🇪 Ireland
40	GH Research GHRS	£0.28 B	£5.48	7.31%	🇮🇪 Ireland
41	Amarin Corporation AMRN	£0.15 B	£0.37	1.18%	🇮🇪 Ireland
42	Mural Oncology MURA	£43.4 M	£2.54	1.27%	🇮🇪 Ireland
43	Iterum Therapeutics ITRM	£38.96 M	£1.42	1.14%	🇮🇪 Ireland
44	Trinity Biotech TRIB	£17.61 M	£0.64	5.12%	🇮🇪 Ireland
45	Brera Holdings BREA	£8.31 M	£0.62	22.62%	🇮🇪 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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