Company lists · Data refreshed September 2026

Top 25 Power plant construction contractors based in Spain

Name: Power plant construction contractors based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 167 companies tracked

RevenueBase identified 167 company matches for power plant construction contractors associated with Spain as of September 2026 and tracks 19,055 professional contacts across them, including 3,203 with verified work emails. Madrid is the largest hub.

This list covers company matches for power plant construction contractors associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

167Companies

19,055Contacts tracked

3,203Verified emails

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The 25 largest power plant construction contractors based in Spain

Ranked by team size

Top 25 of 167 company matches for power plant construction contractors based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tecnicas Reunidas	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	10001+	10,588 contacts →
	Exact match “TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Dragados Offshore	Exact match	11510 Puerto Real, SpainHQ recorded Sep 17, 2026	1,001-5,000	1,348 contacts →
	Exact match “Founded in 1972, Dragados Offshore S.A.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	GES	Exact match	Zamudio, SpainHQ recorded Sep 17, 2026	501-1,000	702 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Sampol	Exact match	Palma De Mallorca, SpainHQ recorded Sep 17, 2026	1,001-5,000	581 contacts →
	Exact match “SAMPOL is an independent, multinational, family owned company founded in 1934 and a leader in the implementation of Energy projects, Electrical installations, Telecommunications…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	IGNIS	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	501-1,000	533 contacts →
	Exact match “We are a vertically integrated energy company and offer tailored solutions for large consumers and for new energy demands, such as data centers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Tecnatom	Exact match	San Sebastian De Los Reyes, SpainHQ recorded Sep 17, 2026	501-1,000	487 contacts →
	Exact match “TECNATOM was set up in 1957 as a Spanish engineering company specialising in guaranteeing the operation and maintenance of nuclear power plants to the highest levels of safety.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Intecsa Industrial	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	501-1,000	372 contacts →
	Exact match “Intecsa Industrial is a Spanish engineering company with more than 50 years experience in Engineering, “Turn-key” execution of industrial plants and supply of technological…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Lanco Infratech Limited	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	1,001-5,000	314 contacts →
	Exact match “LANCO INFRATECH LIMITED is an oil and energy company based out of Calle Laguna del Marquesado Nª 19, Nave 16 Edificio Adriana 1ª Planta, Polígono Industrial La Resina…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Df-Duro Felguera	Exact match	Gijón, SpainHQ recorded Sep 17, 2026	1,001-5,000	301 contacts →
	Exact match “Duro Felguera is a global company based in Asturias.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Sólida	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	201-500	298 contacts →
	Exact match “SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	AEE Power	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	201-500	231 contacts →
	Exact match “AEE Power is an EPC contractor and Power Developer specialized in the energy sector of Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Iprocel	Exact match	Las Palmas De Gran Canaria, SpainHQ recorded Sep 17, 2026	51-200	216 contacts →
	Exact match “IPROCEL es una empresa multinacional fundada en 1993 especializada en la prestación de servicios de ingeniería, puesta en marcha, operación y mantenimiento de sistemas eléctricos…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Initec Energía	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	201-500	168 contacts →
	Exact match “INITEC Energía focuses its activity on the construction of electricity generation facilities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Vestel Ingenieros	Exact match	Paterna, SpainHQ recorded Sep 17, 2026	51-200	135 contacts →
	Exact match “Vestel Ingenieros es una empresa con 20 años de experiencia que tiene el propósito de convertirse en la ingeniería eléctrica nº1 de España.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Azcatec Tecnología E Ingeniería	Exact match	Seville, SpainHQ recorded Sep 17, 2026	51-200	98 contacts →
	Exact match “AZCATEC It is the tool for a group of well-organized professional engineers and experts in the development of industrial plants, energy and environmental engineering have to…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Diseprosa	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	51-200	92 contacts →
	Exact match “DISEÑOS Y PROYECTOS REUNIDOS, S.A.(DISEPROSA), fundada en Madrid en 1986 y dedicada al desarrollo y prestación de servicios de Ingeniería y Consultoría, Dirección y Supervisión de…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Dynatec, S.A	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	201-500	88 contacts →
	Exact match “Engineering company based in Madrid, Spain with over 40 years of experience in the fields of petrochemical and industrial engineering, conventional and nuclear power plants…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Ct3 Ingeniería	Exact match	Majadahonda, SpainHQ recorded Sep 17, 2026	51-200	75 contacts →
	Exact match “The work of CT3 Ingeniería is aimed at ensuring utmost customer satisfaction through project engagement and commitment, while favouring the professional and personal development…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Enso Energy Environment & Sustainability	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	51-200	72 contacts →
	Exact match “ENSO Energy Environment and Sustainability se dedica al desarrollo, promoción, construcción y operación de plantas de generación eléctrica y térmica.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Seselec España	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	51-200	61 contacts →
	Exact match “SESELEC es una empresa EPC especializada en infraestructura eléctrica (Subestaciones, Líneas de Transmisión, Plantas Fotovoltaicas) dentro de México, Latinoamérica y España.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Grupo Cartago Ingenieros	Exact match	Madrid, SpainHQ recorded Sep 17, 2026	51-200	56 contacts →
	Exact match “Grupo CARTAGO desarrolla servicios de ingeniería y de dirección y supervisión de obra en la construcción y puesta en marcha de plantas industriales, petroquímicas, centrales…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Syltec	Exact match	Valladolid, SpainHQ recorded Sep 17, 2026	51-200	47 contacts →
	Exact match “SYLTEC es una empresa independiente, constituída con el objetivo de ofrecer servicios integrales de ingeniería, consultoría y formación a nivel nacional.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Indutec Instalaciones Y Energía	Exact match	Zaragoza, SpainHQ recorded Sep 17, 2026	51-200	23 contacts →
	Exact match “INDUTEC INSTALACIONES Y ENERGÍA es la compañía perteneciente al grupo empresarial aragonés Grupo Marco, especializada en la construcción de proyectos llave en mano para el sector…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Grupo Gestacur	Exact match	Albacete, SpainHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “Nuestra actividad central es la ejecución de obra civil en proyectos de producción de energía eléctrica, orientada a las Energías Renovables como Parques Eólicos, Plantas…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Ogisa Infraestructuras S.A	Exact match	Zaragoza, SpainHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “power plant construction contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 167 power plant construction contractors based in Spain

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Power plant construction contractors based in Spain at a glance

As of Sep 17, 2026

16.8%Verified-email coverage

114.1Average contacts per company

11-50Median size (employees)

16.8%Largest-city concentration · Madrid

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 167 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Spain whose business descriptions match “power plant construction contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 3,203 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “power plant construction contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many power plant construction contractors are there based in Spain?

RevenueBase identified 167 company matches for power plant construction contractors associated with Spain as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Tecnicas Reunidas tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most power plant construction contractors?

Madrid leads with 28 company records, followed by Seville (11) and Barcelona (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,203 professional contacts with verified work emails tracked across these 167 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.