Largest Irish companies by market cap

Companies: 44 total market cap: £708.63 B

Rank	Name	Market Cap	Price	Today	Country
1	Accenture ACN	£137.43 B	£219.54	1.92%	🇮🇪 Ireland
2	Eaton ETN	£82.45 B	£210.48	0.11%	🇮🇪 Ireland
3	Medtronic MDT	£81.82 B	£63.80	1.59%	🇮🇪 Ireland
4	Trane Technologies TT	£59.04 B	£263.25	0.49%	🇮🇪 Ireland
5	Cement Roadstone Holding CRH	£43.96 B	£64.98	1.23%	🇮🇪 Ireland
6	Johnson Controls JCI	£39.25 B	£59.47	1.00%	🇮🇪 Ireland
7	Experian EXPGF	£31.18 B	£34.14	0.00%	🇮🇪 Ireland
8	Flutter Entertainment FLUT	£31.14 B	£176.20	0.35%	🇮🇪 Ireland
9	Ingersoll Rand IR	£22.40 B	£55.58	0.51%	🇮🇪 Ireland
10	Ryanair RYAAY	£17.91 B	£33.70	0.77%	🇮🇪 Ireland
11	Steris STE	£16.67 B	£169.70	1.32%	🇮🇪 Ireland
12	Smurfit Westrock SW	£16.38 B	£31.39	1.57%	🇮🇪 Ireland
13	AerCap AER	£13.54 B	£72.54	4.10%	🇮🇪 Ireland
14	Kerry Group KRZ.IR	£13.00 B	£78.74	1.67%	🇮🇪 Ireland
15	Seagate Technology STX	£11.65 B	£55.05	3.59%	🇮🇪 Ireland
16	Kingspan Group KRX.IR	£11.36 B	£62.44	2.40%	🇮🇪 Ireland
17	AIB Group (Allied Irish Banks) A5G.IR	£11.29 B	£4.85	5.03%	🇮🇪 Ireland

18	ICON plc ICLR	£8.98 B	£111.17	1.87%	🇮🇪 Ireland
19	Aptiv APTV	£8.70 B	£37.95	4.55%	🇮🇪 Ireland
20	Bank of Ireland Group BIRG.IR	£8.56 B	£8.69	3.15%	🇮🇪 Ireland
21	Allegion ALLE	£8.25 B	£95.67	0.91%	🇮🇪 Ireland
22	James Hardie Industries JHX	£7.28 B	£16.93	0.89%	🇮🇪 Ireland
23	DCC plc DCC.L	£4.81 B	£4,870	2.27%	🇮🇪 Ireland
24	Jazz Pharmaceuticals JAZZ	£4.68 B	£77.08	1.24%	🇮🇪 Ireland
25	Alkermes ALKS	£3.43 B	£20.86	2.00%	🇮🇪 Ireland
26	Perrigo PRGO	£2.58 B	£18.94	1.46%	🇮🇪 Ireland
27	Glanbia plc GL9.IR	£2.17 B	£8.55	1.53%	🇮🇪 Ireland
28	Grafton Group GFTU.L	£1.73 B	£884.70	4.11%	🇮🇪 Ireland
29	Dole PLC DOLE	£1.00 B	£10.53	3.27%	🇮🇪 Ireland
30	Dalata Hotel Group DHG.IR	£0.91 B	£4.33	3.07%	🇮🇪 Ireland
31	Cimpress CMPR	£0.81 B	£32.96	0.59%	🇮🇪 Ireland
32	Cosmo Pharmaceuticals C43.F	£0.73 B	£45.15	2.94%	🇮🇪 Ireland
33	Adient ADNT	£0.69 B	£8.30	5.38%	🇮🇪 Ireland
34	Avadel Pharmaceuticals AVDL	£0.56 B	£5.86	0.65%	🇮🇪 Ireland
35	ADS-TEC Energy ADSE	£0.51 B	£9.48	2.71%	🇮🇪 Ireland
36	GH Research GHRS	£0.42 B	£6.89	1.00%	🇮🇪 Ireland
37	Prothena PRTA	£0.40 B	£7.53	2.74%	🇮🇪 Ireland
38	kneat.com FOBK.F	£0.30 B	£3.25	0.00%	🇮🇪 Ireland
39	Navitas Semiconductor NVTS	£0.25 B	£1.32	3.33%	🇮🇪 Ireland
40	Amarin Corporation AMRN	£0.14 B	£7.17	1.83%	🇮🇪 Ireland
41	Iterum Therapeutics ITRM	£29.6 M	£0.86	1.80%	🇮🇪 Ireland
42	Mural Oncology MURA	£13.44 M	£0.78	0.00%	🇮🇪 Ireland
43	Trinity Biotech TRIB	£8.43 M	£0.44	0.33%	🇮🇪 Ireland
44	Brera Holdings BREA	£6.69 M	£0.53	0.67%	🇮🇪 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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