Ireland

Top 86 largest Irish Companies by Market Cap

This is the list of the largest public listed companies from Ireland by market capitalization with links to their reference stock, sector and industry.

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Top Companies from Ireland as of Jan. 01, 2026

Rank Company Market Cap (USD) Country Sector Industry
31 Keywords Studios plc $2.42 B

(July 1, 2024)

 Ireland Irish Communication Services Irish Electronic Gaming & Multimedia
32 COSMO Pharmaceuticals NV $2.15 B Ireland Irish Healthcare Irish Drug Manufacturers—General
33 Avadel Pharmaceuticals plc $2.11 B Ireland Irish Healthcare Irish Drug Manufacturers—Specialty & Generic
34 Perrigo Company plc $1.91 B Ireland Irish Healthcare Irish Drug Manufacturers—Specialty & Generic
35 Cimpress plc $1.62 B Ireland Irish Communication Services Irish Advertising Agencies
36 Dalata Hotel Group plc $1.62 B

(July 1, 2025)

 Ireland Irish Consumer Discretionary Irish Lodging
37 Adient plc $1.55 B Ireland Irish Consumer Discretionary Irish Auto Parts
38 Cairn Homes plc $1.51 B Ireland Irish Consumer Discretionary Irish Residential Construction
39 Greencore Group plc $1.43 B Ireland Irish Consumer Staples Irish Packaged Foods
40 Permanent TSB Group Holdings plc $1.40 B

(May 1, 2023)

 Ireland Irish Financials Irish Banks—Regional
41 Glenveagh Properties plc $1.18 B Ireland Irish Consumer Discretionary Irish Residential Construction
42 Hibernia REIT plc $1.15 B

(June 1, 2022)

 Ireland Irish Real Estate Irish REIT—Diversified
43 Irish Continental Group plc $1.12 B Ireland Irish Industrials Irish Marine Shipping
44 Uniphar plc $1.06 B Ireland Irish Healthcare Irish Medical Care Facilities
45 Greencoat Renewables plc $911.3 M Ireland Irish Utilities Irish Utilities—Independent Power Producers
46 Total Produce plc $874.4 M

(July 1, 2021)

 Ireland Irish Consumer Staples Irish Farm Products
47 C&C Group plc $664.3 M Ireland Irish Consumer Staples Irish Beverages—Brewers
48 Irish Residential Properties REIT Plc $572.2 M Ireland Irish Real Estate Irish REIT—Residential
49 FBD Holdings plc $557.9 M

(Jan. 1, 2023)

 Ireland Irish Financials Irish Insurance—Property & Casualty
50 Origin Enterprises plc $536.0 M

(Jan. 1, 2023)

 Ireland Irish Consumer Staples Irish Farm Products
51 Prothena Corporation plc $495.2 M Ireland Irish Healthcare Irish Biotechnology
52 FINEOS Corporation Holdings plc $411.2 M

(July 1, 2024)

 Ireland Irish Technology Irish Software—Application
53 Kenmare Resources plc $302.0 M Ireland Irish Basic Materials Irish Other Industrial Metals & Mining
54 Amarin Corporation plc $285.3 M Ireland Irish Healthcare Irish Biotechnology
55 Hostelworld Group plc $231.9 M Ireland Irish Consumer Discretionary Irish Travel Services
56 Oneview Healthcare PLC $181.3 M

(July 1, 2024)

 Ireland Irish Healthcare Irish Health Information Services
57 kneat.com, Inc. $176.3 M

(Oct. 1, 2022)

 Ireland Irish Healthcare Irish Health Information Services
58 Falcon Oil & Gas Ltd. $173.7 M Ireland Irish Energy Irish Oil & Gas E&P
59 San Leon Energy plc $93.9 M

(July 1, 2024)

 Ireland Irish Energy Irish Oil & Gas E&P
60 Mincon Group plc $87.8 M

(July 1, 2025)

 Ireland Irish Industrials Irish Tools & Accessories

Top Companies from Ireland as of Jan. 01, 2026

31. Keywords Studios plc

Company Profile: Keywords Studios plc
Market Cap (USD): $2.42 B (July 1, 2024)
Country: Ireland
Sector: Irish Communication Services
Industry: Irish Electronic Gaming & Multimedia

32. COSMO Pharmaceuticals NV

Company Profile: COSMO Pharmaceuticals NV
Market Cap (USD): $2.15 B
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Drug Manufacturers—General

33. Avadel Pharmaceuticals plc

Company Profile: Avadel Pharmaceuticals plc
Market Cap (USD): $2.11 B
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Drug Manufacturers—Specialty & Generic

34. Perrigo Company plc

Company Profile: Perrigo Company plc
Market Cap (USD): $1.91 B
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Drug Manufacturers—Specialty & Generic

35. Cimpress plc

Company Profile: Cimpress plc
Market Cap (USD): $1.62 B
Country: Ireland
Sector: Irish Communication Services
Industry: Irish Advertising Agencies

36. Dalata Hotel Group plc

Company Profile: Dalata Hotel Group plc
Market Cap (USD): $1.62 B (July 1, 2025)
Country: Ireland
Sector: Irish Consumer Discretionary
Industry: Irish Lodging

37. Adient plc

Company Profile: Adient plc
Market Cap (USD): $1.55 B
Country: Ireland
Sector: Irish Consumer Discretionary
Industry: Irish Auto Parts

38. Cairn Homes plc

Company Profile: Cairn Homes plc
Market Cap (USD): $1.51 B
Country: Ireland
Sector: Irish Consumer Discretionary
Industry: Irish Residential Construction

39. Greencore Group plc

Company Profile: Greencore Group plc
Market Cap (USD): $1.43 B
Country: Ireland
Sector: Irish Consumer Staples
Industry: Irish Packaged Foods

40. Permanent TSB Group Holdings plc

Company Profile: Permanent TSB Group Holdings plc
Market Cap (USD): $1.40 B (May 1, 2023)
Country: Ireland
Sector: Irish Financials
Industry: Irish Banks—Regional

41. Glenveagh Properties plc

Company Profile: Glenveagh Properties plc
Market Cap (USD): $1.18 B
Country: Ireland
Sector: Irish Consumer Discretionary
Industry: Irish Residential Construction

42. Hibernia REIT plc

Company Profile: Hibernia REIT plc
Market Cap (USD): $1.15 B (June 1, 2022)
Country: Ireland
Sector: Irish Real Estate
Industry: Irish REIT—Diversified

43. Irish Continental Group plc

Company Profile: Irish Continental Group plc
Market Cap (USD): $1.12 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Marine Shipping

44. Uniphar plc

Company Profile: Uniphar plc
Market Cap (USD): $1.06 B
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Medical Care Facilities

45. Greencoat Renewables plc

Company Profile: Greencoat Renewables plc
Market Cap (USD): $911.3 M
Country: Ireland
Sector: Irish Utilities
Industry: Irish Utilities—Independent Power Producers

46. Total Produce plc

Company Profile: Total Produce plc
Market Cap (USD): $874.4 M (July 1, 2021)
Country: Ireland
Sector: Irish Consumer Staples
Industry: Irish Farm Products

47. C&C Group plc

Company Profile: C&C Group plc
Market Cap (USD): $664.3 M
Country: Ireland
Sector: Irish Consumer Staples
Industry: Irish Beverages—Brewers

48. Irish Residential Properties REIT Plc

Company Profile: Irish Residential Properties REIT Plc
Market Cap (USD): $572.2 M
Country: Ireland
Sector: Irish Real Estate
Industry: Irish REIT—Residential

49. FBD Holdings plc

Company Profile: FBD Holdings plc
Market Cap (USD): $557.9 M (Jan. 1, 2023)
Country: Ireland
Sector: Irish Financials
Industry: Irish Insurance—Property & Casualty

50. Origin Enterprises plc

Company Profile: Origin Enterprises plc
Market Cap (USD): $536.0 M (Jan. 1, 2023)
Country: Ireland
Sector: Irish Consumer Staples
Industry: Irish Farm Products

51. Prothena Corporation plc

Company Profile: Prothena Corporation plc
Market Cap (USD): $495.2 M
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Biotechnology

52. FINEOS Corporation Holdings plc

Company Profile: FINEOS Corporation Holdings plc
Market Cap (USD): $411.2 M (July 1, 2024)
Country: Ireland
Sector: Irish Technology
Industry: Irish Software—Application

53. Kenmare Resources plc

Company Profile: Kenmare Resources plc
Market Cap (USD): $302.0 M
Country: Ireland
Sector: Irish Basic Materials
Industry: Irish Other Industrial Metals & Mining

54. Amarin Corporation plc

Company Profile: Amarin Corporation plc
Market Cap (USD): $285.3 M
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Biotechnology

55. Hostelworld Group plc

Company Profile: Hostelworld Group plc
Market Cap (USD): $231.9 M
Country: Ireland
Sector: Irish Consumer Discretionary
Industry: Irish Travel Services

56. Oneview Healthcare PLC

Company Profile: Oneview Healthcare PLC
Market Cap (USD): $181.3 M (July 1, 2024)
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Health Information Services

57. kneat.com, Inc.

Company Profile: kneat.com, Inc.
Market Cap (USD): $176.3 M (Oct. 1, 2022)
Country: Ireland
Sector: Irish Healthcare
Industry: Irish Health Information Services

58. Falcon Oil & Gas Ltd.

Company Profile: Falcon Oil & Gas Ltd.
Market Cap (USD): $173.7 M
Country: Ireland
Sector: Irish Energy
Industry: Irish Oil & Gas E&P

59. San Leon Energy plc

Company Profile: San Leon Energy plc
Market Cap (USD): $93.9 M (July 1, 2024)
Country: Ireland
Sector: Irish Energy
Industry: Irish Oil & Gas E&P

60. Mincon Group plc

Company Profile: Mincon Group plc
Market Cap (USD): $87.8 M (July 1, 2025)
Country: Ireland
Sector: Irish Industrials
Industry: Irish Tools & Accessories

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