Largest Irish companies by market cap

Companies: 44 total market cap: £832.88 B

Rank	Name	Market Cap	Price	Today	Country
1	Accenture ACN	£127.50 B	£205.61	1.41%	🇮🇪 Ireland
2	Medtronic MDT	£94.65 B	£73.79	0.45%	🇮🇪 Ireland
3	Eaton ETN	£94.32 B	£242.29	0.84%	🇮🇪 Ireland
4	Trane Technologies TT	£62.86 B	£282.52	1.00%	🇮🇪 Ireland
5	Cement Roadstone Holding CRH	£60.06 B	£89.86	1.33%	🇮🇪 Ireland
6	Seagate Technology STX	£55.15 B	£253.18	0.12%	🇮🇪 Ireland
7	Johnson Controls JCI	£50.85 B	£83.09	0.80%	🇮🇪 Ireland
8	Experian EXPGF	£27.58 B	£30.17	0.61%	🇮🇪 Ireland
9	Ryanair RYAAY	£27.24 B	£51.92	0.07%	🇮🇪 Ireland
10	Ingersoll Rand IR	£25.35 B	£63.79	0.39%	🇮🇪 Ireland
11	Flutter Entertainment FLUT	£22.41 B	£127.95	3.47%	🇮🇪 Ireland
12	AerCap AER	£18.90 B	£106.00	0.65%	🇮🇪 Ireland
13	Steris STE	£18.69 B	£189.84	0.53%	🇮🇪 Ireland
14	AIB Group (Allied Irish Banks) A5G.IR	£17.23 B	£8.06	1.25%	🇮🇪 Ireland
15	Smurfit Westrock SW	£16.73 B	£32.04	4.83%	🇮🇪 Ireland
16	Bank of Ireland Group BIRG.IR	£13.84 B	£14.53	0.78%	🇮🇪 Ireland
17	Aptiv APTV	£12.18 B	£55.94	1.37%	🇮🇪 Ireland

18	Kingspan Group KRX.IR	£11.38 B	£62.94	0.55%	🇮🇪 Ireland
19	ICON plc ICLR	£10.62 B	£136.57	0.02%	🇮🇪 Ireland
20	Allegion ALLE	£10.49 B	£122.02	0.07%	🇮🇪 Ireland
21	James Hardie Industries JHX	£10.39 B	£17.93	0.12%	🇮🇪 Ireland
22	Kerry Group KRZ.IR	£10.12 B	£62.94	0.00%	🇮🇪 Ireland
23	Jazz Pharmaceuticals JAZZ	£7.49 B	£123.41	1.34%	🇮🇪 Ireland
24	Alkermes ALKS	£4.05 B	£24.59	1.00%	🇮🇪 Ireland
25	DCC plc DCC.L	£3.88 B	£45.52	0.78%	🇮🇪 Ireland
26	Glanbia plc GL9.IR	£3.35 B	£13.84	0.25%	🇮🇪 Ireland
27	Grafton Group GFTU.L	£1.79 B	£9.31	0.46%	🇮🇪 Ireland
28	Cosmo Pharmaceuticals C43.F	£1.71 B	£106.71	0.81%	🇮🇪 Ireland
29	Navitas Semiconductor NVTS	£1.71 B	£7.44	9.92%	🇮🇪 Ireland
30	Avadel Pharmaceuticals AVDL	£1.54 B	£15.73	0.14%	🇮🇪 Ireland
31	Perrigo PRGO	£1.48 B	£10.77	2.39%	🇮🇪 Ireland
32	Cimpress CMPR	£1.42 B	£57.68	2.24%	🇮🇪 Ireland
33	Adient ADNT	£1.25 B	£15.81	1.10%	🇮🇪 Ireland
34	Dalata Hotel Group DHG.IR	£1.16 B	£5.49	0.00%	🇮🇪 Ireland
35	Dole PLC DOLE	£1.06 B	£11.23	0.26%	🇮🇪 Ireland
36	GH Research GHRS	£0.75 B	£12.24	0.06%	🇮🇪 Ireland
37	ADS-TEC Energy ADSE	£0.53 B	£8.85	5.62%	🇮🇪 Ireland
38	Prothena PRTA	£0.39 B	£7.32	3.29%	🇮🇪 Ireland
39	kneat.com FOBK.F	£0.25 B	£2.55	0.00%	🇮🇪 Ireland
40	Amarin Corporation AMRN	£0.24 B	£11.89	1.51%	🇮🇪 Ireland
41	Brera Holdings BREA	£44.51 M	£18.43	1.94%	🇮🇪 Ireland
42	Mural Oncology MURA	£25.88 M	£1.49	0.00%	🇮🇪 Ireland
43	Iterum Therapeutics ITRM	£14.15 M	£0.27	3.68%	🇮🇪 Ireland
44	Trinity Biotech TRIB	£12.38 M	£0.66	14.37%	🇮🇪 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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