Largest companies in Ireland
The 23 companies domiciled in Ireland that trade on a US exchange, ranked by market capitalisation. Domicile comes from each company's own SEC filing, so a company headquartered here but listed only on its home market does not appear.
Combined market cap
$753.041 B
0.8% of all US-listed value
Companies
23
Ranked #9 of 55 countries
Average
$32.741 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | AccentureACN | $178.4B | $266.80 | +0.96% | Ireland |
| 2 | EatonETN | $126.5B | $325.67 | -7.76% | Ireland |
| 3 | Seagate TechnologySTX | $106.6B | $464.24 | -16.66% | Ireland |
| 4 | Trane TechnologiesTT | $85.9B | $392.57 | -4.36% | Ireland |
| 5 | Crh PublicCRH | $63.5B | $95.43 | -3.41% | Ireland |
| 6 | TE ConnectivityTEL | $59.9B | $206.91 | -6.05% | Ireland |
| 7 | RyanairRYAAY | $30.8B | $58.49 | -0.95% | Ireland |
| 8 | Smurfit WestrockSW | $23.3B | $44.39 | -1.77% | Ireland |
| 9 | James Hardie IndustriesJHX | $16.7B | $28.77 | -2.56% | Ireland |
| 10 | IconICLR | $15.4B | $201.60 | -0.74% | Ireland |
| 11 | Jazz PharmaceuticalsJAZZ | $14.6B | $227.19 | -3.18% | Ireland |
| 12 | Flutter EntertainmentFLUT | $14.3B | $82.42 | +0.76% | Ireland |
| 13 | AlkermesALKS | $7.50B | $44.63 | -2.75% | Ireland |
| 14 | WPPWPP | $6.04B | $27.99 | -1.44% | Ireland |
| 15 | DoleDOLE | $1.31B | $13.85 | +0.11% | Ireland |
| 16 | GH ResearchGHRS | $1.26B | $18.40 | -7.68% | Ireland |
| 17 | Ads-Tec Energy PublicADSE | $673.2M | $8.96 | -1.32% | Ireland |
| 18 | Amarin Corp PlcukAMRN | $238.3M | $11.55 | -5.71% | Ireland |
| 19 | Davion HealthcareDAVI | $34.8M | $1.39 | -16.77% | Ireland |
| 20 | Solmate InfrastructureSLMT | $31.7M | $2.88 | -11.38% | Ireland |
| 21 | Fusion Fuel GreenHTOO | $10.5M | $1.40 | -13.04% | Ireland |
| 22 | Trinity BiotechTRIB | $4.79M | $5.90 | -6.43% | Ireland |
| 23 | SMX (Security Matters) PublicSMX | $3.20M | $1.28 | +8.47% | Ireland |
All 23 companies. One row per company, with secondary share classes folded into their primary listing.
Other countries
🇺🇸 United States 4,017🇨🇦 Canada 244🇬🇧 United Kingdom 74🇹🇼 Taiwan 23🇳🇱 Netherlands 25🇯🇵 Japan 27🇰🇷 South Korea 13🇨🇭 Switzerland 26🇨🇳 China 249🇧🇷 Brazil 28🇩🇪 Germany 14🇦🇺 Australia 30🇫🇷 France 16🇲🇽 Mexico 16🇮🇳 India 9🇪🇸 Spain 5🇱🇺 Luxembourg 16🇩🇰 Denmark 7🇮🇹 Italy 5🇮🇱 Israel 117🇧🇲 Bermuda 36🇧🇪 Belgium 7🇰🇾 Cayman Islands 29🇦🇷 Argentina 14All countries →
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered: see methodology.