Browse 42,409 electricity & power in Spain — registry-sourced from Registro Mercantil, scoped to NACE 351. Each record carries up to up to 500 firmographic attributes — from CIF/NIF and registered address to revenue, headcount and corporate group structure. The largest by revenue are ENDESA ENERGIA SAU ($16.1B), IBERDROLA CLIENTES SOCIEDAD ANONIMA. ($12B) and ENGIE ESPAÑA SL. ($6.1B).
Top companies
The largest electricity & power in Spain by revenue are ENDESA ENERGIA SAU ($16.1B), IBERDROLA CLIENTES SOCIEDAD ANONIMA. ($12B) and ENGIE ESPAÑA SL. ($6.1B). The directory below ranks them — sort any column, or filter by sub-sector, company size and region.
Last updated June 2026.
Every Spanish electricity & power record with all attributes, by API, bulk export or CRM enrichment.
Showing 25 of 42,409 Spanish electricity & power· click a column to sort, or a company for its full record
| Electric power generation, transmission and distribution | 1,088 | $16.1B | |
| Electric power generation, transmission and distribution | 968 | $12B | |
| Electric power generation, transmission and distribution | 265 | $6.1B | |
| Electric power generation, transmission and distribution | 816 | $5.7B | |
| Electric power generation, transmission and distribution | 399 | $3.9B | |
| Electric power generation, transmission and distribution | 147 | $3B | |
| Electric power generation, transmission and distribution | 297 | $2.7B | |
| Electric power generation, transmission and distribution | 45 | $2.6B | |
| Electric power generation, transmission and distribution | 2,570 | $2.4B | |
| Electric power generation, transmission and distribution | 3,198 | $2B | |
| Electric power generation, transmission and distribution | 20 | $2B | |
| Electric power generation, transmission and distribution | 561 | $1.9B | |
| Electric power generation, transmission and distribution | 764 | $1.8B | |
| Electric power generation, transmission and distribution | 3 | $1.8B | |
| Electric power generation, transmission and distribution | 1,164 | $1.7B | |
| Electric power generation, transmission and distribution | 409 | $1.7B | |
| Electric power generation, transmission and distribution | 335 | $1.6B | |
| Electric power generation, transmission and distribution | 265 | $1.6B | |
| Electric power generation, transmission and distribution | 1,567 | $1.5B | |
| Electric power generation, transmission and distribution | 3 | $1.4B | |
| Electric power generation, transmission and distribution | 265 | $1.3B | |
| Electric power generation, transmission and distribution | 41 | $1.2B | |
| Electric power generation, transmission and distribution | 265 | $1.1B | |
| Electric power generation, transmission and distribution | 9 | $1.1B | |
| Electric power generation, transmission and distribution | 1,468 | $1B |
This is a sample. The full database holds 42,409 Spanish electricity & power, each with every attribute in the dictionary below.
Database overview
Distributions across all 42,409 electricity & power in Spain — registry-sourced from Registro Mercantil and refreshed daily.
These distributions are computed from the full Spanish electricity & power database, not the sample above.
Data coverage
Legal name, registered address, NACE sub-sector, legal form, founding year and website. Every record is keyed to its CIF/NIF — the stable Registro Mercantil identifier that survives name changes and rebrands, making it the most reliable CRM deduplication key for Spain data.
Each company is geocoded to GPS coordinates covering its registered seat and operating locations across Spain, with a precision level on every point — useful for territory planning and proximity targeting.
Records carry the CIF/NIF and, where applicable, the VAT registration number, with a flag for when the two coincide. These are the cleanest match keys for enriching lists and cross-referencing against the national tax authority and your CRM.
InfobelPRO resolves the corporate hierarchy — parent, subsidiaries and the size of the worldwide corporate family — so sales and compliance teams can see who controls an entity before engaging or onboarding it.
Annual revenue in local currency, EUR and USD, employee headcount and founding year, with multi-year history where filed. Figures are sourced from Registro Mercantil filings and carry an Actual-or-Modeled reliability flag.
Data dictionary
The full field catalogue behind each record. Contact data (email, phone, executives) is part of the licensed dataset but is never displayed on this page.
Source comparison
Registro Mercantil gives you legal registration data. InfobelPRO adds the commercial intelligence sales, marketing and compliance teams actually need.
| Attribute | Registro MercantilFree official registry | InfobelPRO |
|---|---|---|
| CIF/NIF | Yes | Yes — on 99.9% of records |
| Legal name & registered address | Yes | Yes |
| Company status (HQ / branch) | Yes | Yes — daily sync |
| NACE sub-sector classification | Yes | Yes — up to 6 codes |
| Annual revenue (local / EUR / USD) | Filings only | Yes — multi-currency |
| Employee count | No | Yes |
| Decision-maker contacts | No | Yes — licensed |
| Geocoded coordinates | No | Yes |
| Corporate group structure | Filings only | Yes — full hierarchy |
| API access | No | Yes — REST API |
| Bulk export (CSV / JSON / Parquet) | No | Yes |
| Update frequency | Periodic (filings) | Daily sync |
FAQ
API access, bulk export or CRM enrichment — 42,409 records with up to up to 500 attributes each.
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Related directories
See all company directories in Spain, explore the full Spain business database In the US classification, related SIC codes include SIC 4911 — Electric Services., or see how Spain fits into the wider Europe business database.
