Ireland

Top 12 largest Irish Companies in the Industrial sector by Market Cap

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

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Top Industrial Companies from Ireland as of Jan. 01, 2026

Rank Company Market Cap (USD) Country Sector Industry
1 Eaton Corporation plc $127.42 B Ireland Irish Industrials Irish Specialty Industrial Machinery
2 Trane Technologies plc $88.56 B Ireland Irish Industrials Irish Specialty Industrial Machinery
3 Johnson Controls International plc $80.04 B Ireland Irish Industrials Irish Engineering & Construction
4 Experian plc $40.96 B Ireland Irish Industrials Irish Consulting Services
5 AerCap Holdings N.V. $25.79 B Ireland Irish Industrials Irish Airports & Air Services
6 Ryanair Holdings plc $18.18 B

(Dec. 1, 2021)

 Ireland Irish Industrials Irish Airlines
7 Kingspan Group plc $15.76 B Ireland Irish Industrials Irish Building Products & Equipment
8 Allegion plc $13.84 B Ireland Irish Industrials Irish Security & Protection Services
9 Fly Leasing Limited $3.78 B Ireland Irish Industrials Irish Aerospace & Defense
10 Grafton Group plc $2.47 B Ireland Irish Industrials Irish Building Products & Equipment
11 Irish Continental Group plc $1.12 B Ireland Irish Industrials Irish Marine Shipping
12 Mincon Group plc $87.8 M

(July 1, 2025)

 Ireland Irish Industrials Irish Tools & Accessories

Top Industrial Companies from Ireland as of Jan. 01, 2026

1. Eaton Corporation plc

Company Profile: Eaton Corporation plc
Market Cap (USD): $127.42 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Specialty Industrial Machinery

2. Trane Technologies plc

Company Profile: Trane Technologies plc
Market Cap (USD): $88.56 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Specialty Industrial Machinery

3. Johnson Controls International plc

Company Profile: Johnson Controls International plc
Market Cap (USD): $80.04 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Engineering & Construction

4. Experian plc

Company Profile: Experian plc
Market Cap (USD): $40.96 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Consulting Services

5. AerCap Holdings N.V.

Company Profile: AerCap Holdings N.V.
Market Cap (USD): $25.79 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Airports & Air Services

6. Ryanair Holdings plc

Company Profile: Ryanair Holdings plc
Market Cap (USD): $18.18 B (Dec. 1, 2021)
Country: Ireland
Sector: Irish Industrials
Industry: Irish Airlines

7. Kingspan Group plc

Company Profile: Kingspan Group plc
Market Cap (USD): $15.76 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Building Products & Equipment

8. Allegion plc

Company Profile: Allegion plc
Market Cap (USD): $13.84 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Security & Protection Services

9. Fly Leasing Limited

Company Profile: Fly Leasing Limited
Market Cap (USD): $3.78 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Aerospace & Defense

10. Grafton Group plc

Company Profile: Grafton Group plc
Market Cap (USD): $2.47 B
Country: Ireland
Sector: Irish Industrials
Industry: Irish Building Products & Equipment

11. 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

12. 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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