Largest Irish companies by market cap

Companies: 44 total market cap: £838.63 B

Rank	Name	Market Cap	Price	Today	Country
1	Eaton ETN	£107.36 B	£275.78	0.55%	🇮🇪 Ireland
2	Accenture ACN	£94.78 B	£152.85	7.52%	🇮🇪 Ireland
3	Medtronic MDT	£92.18 B	£71.87	0.17%	🇮🇪 Ireland
4	Trane Technologies TT	£75.09 B	£338.68	0.83%	🇮🇪 Ireland
5	Seagate Technology STX	£65.59 B	£300.81	3.95%	🇮🇪 Ireland
6	Johnson Controls JCI	£65.46 B	£106.95	0.29%	🇮🇪 Ireland
7	Cement Roadstone Holding CRH	£59.91 B	£89.39	0.21%	🇮🇪 Ireland
8	Ingersoll Rand IR	£27.51 B	£69.65	0.86%	🇮🇪 Ireland
9	Ryanair RYAAY	£26.96 B	£51.50	3.25%	🇮🇪 Ireland
10	Experian EXPGF	£23.14 B	£25.43	0.00%	🇮🇪 Ireland
11	AerCap AER	£19.11 B	£112.31	0.65%	🇮🇪 Ireland
12	Steris STE	£18.53 B	£188.82	1.08%	🇮🇪 Ireland
13	Smurfit Westrock SW	£17.77 B	£34.02	0.32%	🇮🇪 Ireland
14	AIB Group (Allied Irish Banks) A5G.IR	£16.57 B	£7.76	1.49%	🇮🇪 Ireland
15	Flutter Entertainment FLUT	£15.90 B	£90.74	1.99%	🇮🇪 Ireland
16	Bank of Ireland Group BIRG.IR	£14.05 B	£14.75	2.37%	🇮🇪 Ireland
17	Kingspan Group KRX.IR	£12.98 B	£71.77	0.06%	🇮🇪 Ireland

18	Aptiv APTV	£12.33 B	£57.08	0.58%	🇮🇪 Ireland
19	James Hardie Industries JHX	£10.70 B	£18.45	0.42%	🇮🇪 Ireland
20	Kerry Group KRZ.IR	£10.36 B	£64.55	1.58%	🇮🇪 Ireland
21	Allegion ALLE	£10.20 B	£118.47	2.54%	🇮🇪 Ireland
22	Jazz Pharmaceuticals JAZZ	£8.54 B	£140.68	3.72%	🇮🇪 Ireland
23	ICON plc ICLR	£6.04 B	£77.72	3.66%	🇮🇪 Ireland
24	DCC plc DCC.L	£4.43 B	£51.95	0.87%	🇮🇪 Ireland
25	Alkermes ALKS	£3.73 B	£22.61	1.87%	🇮🇪 Ireland
26	Glanbia plc GL9.IR	£3.66 B	£15.10	0.41%	🇮🇪 Ireland
27	Cosmo Pharmaceuticals C43.F	£1.92 B	£113.78	0.78%	🇮🇪 Ireland
28	Grafton Group GFTU.L	£1.89 B	£9.82	1.18%	🇮🇪 Ireland
29	Navitas Semiconductor NVTS	£1.62 B	£7.06	3.69%	🇮🇪 Ireland
30	Avadel Pharmaceuticals AVDL	£1.57 B	£16.07	0.00%	🇮🇪 Ireland
31	Adient ADNT	£1.43 B	£18.14	1.45%	🇮🇪 Ireland
32	Perrigo PRGO	£1.40 B	£10.24	4.30%	🇮🇪 Ireland
33	Cimpress CMPR	£1.35 B	£54.72	2.24%	🇮🇪 Ireland
34	Dalata Hotel Group DHG.IR	£1.17 B	£5.57	0.00%	🇮🇪 Ireland
35	Dole PLC DOLE	£1.10 B	£11.61	0.06%	🇮🇪 Ireland
36	GH Research GHRS	£0.71 B	£11.51	1.52%	🇮🇪 Ireland
37	ADS-TEC Energy ADSE	£0.51 B	£8.62	4.21%	🇮🇪 Ireland
38	Prothena PRTA	£0.34 B	£6.48	1.69%	🇮🇪 Ireland
39	kneat.com FOBK.F	£0.22 B	£2.26	2.38%	🇮🇪 Ireland
40	Amarin Corporation AMRN	£0.21 B	£10.23	1.92%	🇮🇪 Ireland
41	Brera Holdings SLMT	£68.02 M	£0.82	0.89%	🇮🇪 Ireland
42	Mural Oncology MURA	£26.26 M	£1.51	0.00%	🇮🇪 Ireland
43	Trinity Biotech TRIB	£10.15 M	£0.54	2.45%	🇮🇪 Ireland
44	Iterum Therapeutics ITRM	£9.17 M	£0.17	2.11%	🇮🇪 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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