Largest Irish companies by market cap

Companies: 44 total market cap: £852.54 B

Rank	Name	Market Cap	Price	Today	Country
1	Accenture ACN	£127.01 B	£203.92	1.00%	🇮🇪 Ireland
2	Eaton ETN	£103.07 B	£264.77	3.42%	🇮🇪 Ireland
3	Medtronic MDT	£96.81 B	£75.49	1.15%	🇮🇪 Ireland
4	Trane Technologies TT	£66.53 B	£298.99	0.04%	🇮🇪 Ireland
5	Cement Roadstone Holding CRH	£62.75 B	£93.74	1.17%	🇮🇪 Ireland
6	Johnson Controls JCI	£56.76 B	£86.75	0.03%	🇮🇪 Ireland
7	Seagate Technology STX	£48.78 B	£223.92	5.68%	🇮🇪 Ireland
8	Experian EXPGF	£30.58 B	£33.46	0.00%	🇮🇪 Ireland
9	Flutter Entertainment FLUT	£28.65 B	£163.56	1.08%	🇮🇪 Ireland
10	Ryanair RYAAY	£26.49 B	£50.41	1.68%	🇮🇪 Ireland
11	Ingersoll Rand IR	£24.10 B	£60.66	3.32%	🇮🇪 Ireland
12	Steris STE	£19.09 B	£193.89	0.61%	🇮🇪 Ireland
13	AerCap AER	£18.66 B	£104.69	0.04%	🇮🇪 Ireland
14	AIB Group (Allied Irish Banks) A5G.IR	£16.60 B	£7.77	0.11%	🇮🇪 Ireland
15	Smurfit Westrock SW	£14.53 B	£27.84	5.27%	🇮🇪 Ireland
16	Bank of Ireland Group BIRG.IR	£13.39 B	£14.06	0.22%	🇮🇪 Ireland
17	Aptiv APTV	£12.81 B	£58.84	2.88%	🇮🇪 Ireland

18	Kingspan Group KRX.IR	£11.67 B	£64.58	0.07%	🇮🇪 Ireland
19	ICON plc ICLR	£10.82 B	£139.23	2.52%	🇮🇪 Ireland
20	Kerry Group KRZ.IR	£10.63 B	£65.89	0.40%	🇮🇪 Ireland
21	Allegion ALLE	£10.33 B	£120.08	1.78%	🇮🇪 Ireland
22	James Hardie Industries JHX	£8.66 B	£14.97	4.77%	🇮🇪 Ireland
23	Jazz Pharmaceuticals JAZZ	£7.50 B	£123.58	1.67%	🇮🇪 Ireland
24	DCC plc DCC.L	£4.88 B	£50.30	0.50%	🇮🇪 Ireland
25	Alkermes ALKS	£3.53 B	£21.44	0.63%	🇮🇪 Ireland
26	Glanbia plc GL9.IR	£3.09 B	£12.77	0.68%	🇮🇪 Ireland
27	Grafton Group GFTU.L	£1.76 B	£9.14	1.22%	🇮🇪 Ireland
28	Avadel Pharmaceuticals AVDL	£1.57 B	£16.09	0.80%	🇮🇪 Ireland
29	Navitas Semiconductor NVTS	£1.57 B	£6.83	0.55%	🇮🇪 Ireland
30	Cosmo Pharmaceuticals C43.F	£1.44 B	£90.01	0.96%	🇮🇪 Ireland
31	Perrigo PRGO	£1.39 B	£10.13	1.50%	🇮🇪 Ireland
32	Cimpress CMPR	£1.33 B	£53.97	0.36%	🇮🇪 Ireland
33	Dalata Hotel Group DHG.IR	£1.19 B	£5.63	0.00%	🇮🇪 Ireland
34	Adient ADNT	£1.16 B	£14.29	2.03%	🇮🇪 Ireland
35	Dole PLC DOLE	£1.05 B	£11.06	0.68%	🇮🇪 Ireland
36	GH Research GHRS	£0.66 B	£10.64	0.70%	🇮🇪 Ireland
37	ADS-TEC Energy ADSE	£0.56 B	£9.36	1.57%	🇮🇪 Ireland
38	Prothena PRTA	£0.39 B	£7.39	4.36%	🇮🇪 Ireland
39	kneat.com FOBK.F	£0.23 B	£2.43	0.71%	🇮🇪 Ireland
40	Amarin Corporation AMRN	£0.22 B	£10.67	0.92%	🇮🇪 Ireland
41	Brera Holdings BREA	£45.58 M	£18.88	1.94%	🇮🇪 Ireland
42	Mural Oncology MURA	£26.5 M	£1.53	0.00%	🇮🇪 Ireland
43	Iterum Therapeutics ITRM	£18.18 M	£0.34	1.55%	🇮🇪 Ireland
44	Trinity Biotech TRIB	£16.39 M	£0.85	5.00%	🇮🇪 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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