Spain

Top 11 largest Spanish Companies in the Utilities sector by Market Cap

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

Spain Utilities Sector Analysis
Top Spanish Companies Spain Analysis
World Top Companies World Companies Analysis

Top Utilities Companies from Spain as of Jan. 01, 2026

Rank Company Market Cap (USD) Country Sector Industry
1 Iberdrola, SA $146.18 B Spain Spanish Utilities Spanish Utilities—Diversified
2 Endesa, SA $37.95 B Spain Spanish Utilities Spanish Utilities—Regulated Electric
3 Naturgy Energy Group, SA $29.10 B Spain Spanish Utilities Spanish Utilities—Regulated Gas
4 EDP Renováveis, SA $15.53 B Spain Spanish Utilities Spanish Utilities—Renewable
5 Red Eléctrica Corporación, SA $9.70 B Spain Spanish Utilities Spanish Utilities—Regulated Electric
6 Enagás, SA $3.85 B Spain Spanish Utilities Spanish Utilities—Regulated Gas
7 Solaria Energía y Medio Ambiente, SA $2.64 B Spain Spanish Utilities Spanish Utilities—Renewable
8 Solarpack Corp Tecnologica SA $994.7 M

(Dec. 1, 2021)

 Spain Spanish Utilities Spanish Utilities—Renewable
9 Audax Renovables, SA $711.2 M Spain Spanish Utilities Spanish Utilities—Renewable
10 Grupo Ecoener, S.A.U. $335.6 M Spain Spanish Utilities Spanish Utilities—Renewable
11 Corporación Acciona Energías Renovables, SA Spain Spanish Utilities Spanish Utilities—Renewable

Top Utilities Companies from Spain as of Jan. 01, 2026

1. Iberdrola, SA

Company Profile: Iberdrola, SA
Market Cap (USD): $146.18 B
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Diversified

2. Endesa, SA

Company Profile: Endesa, SA
Market Cap (USD): $37.95 B
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Regulated Electric

3. Naturgy Energy Group, SA

Company Profile: Naturgy Energy Group, SA
Market Cap (USD): $29.10 B
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Regulated Gas

4. EDP Renováveis, SA

Company Profile: EDP Renováveis, SA
Market Cap (USD): $15.53 B
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Renewable

5. Red Eléctrica Corporación, SA

Company Profile: Red Eléctrica Corporación, SA
Market Cap (USD): $9.70 B
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Regulated Electric

6. Enagás, SA

Company Profile: Enagás, SA
Market Cap (USD): $3.85 B
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Regulated Gas

7. Solaria Energía y Medio Ambiente, SA

Company Profile: Solaria Energía y Medio Ambiente, SA
Market Cap (USD): $2.64 B
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Renewable

8. Solarpack Corp Tecnologica SA

Company Profile: Solarpack Corp Tecnologica SA
Market Cap (USD): $994.7 M (Dec. 1, 2021)
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Renewable

9. Audax Renovables, SA

Company Profile: Audax Renovables, SA
Market Cap (USD): $711.2 M
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Renewable

10. Grupo Ecoener, S.A.U.

Company Profile: Grupo Ecoener, S.A.U.
Market Cap (USD): $335.6 M
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Renewable

11. Corporación Acciona Energías Renovables, SA

Company Profile: Corporación Acciona Energías Renovables, SA
Country: Spain
Sector: Spanish Utilities
Industry: Spanish Utilities—Renewable

Stay in touch