Company lists · Data refreshed September 2026

Top 25 Power plant engineering firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 102 companies tracked

RevenueBase identified 102 power plant engineering firms headquartered in Spain as of September 2026 and tracks 2,587 professional contacts across them, including 185 with verified work emails. Madrid is the largest hub.

This list covers power plant engineering firms headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

102Companies

2,587Contacts tracked

185Verified emails

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The 25 largest power plant engineering firms based in Spain

Ranked by team size

Top 25 of 102 power plant engineering firms based in Spain, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to power plant engineering firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Tecnatom	Strong evidence	San Sebastian De Los Reyes, SpainHQ checked Sep 17, 2026	501-1,000	487 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
2	Lanco Infratech Limited	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	1,001-5,000	314 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
3	Iprocel	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 17, 2026	51-200	216 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
4	Quadrante Izharia	Indirect evidence	Las Rozas De Madrid, SpainHQ checked Sep 17, 2026	1,001-5,000	178 contacts →
	Indirect evidence “Nos dedicamos a la Ingeniería de Subestaciones y Lineas de AT y MT.” Source: RevenueBase Database · checked Sep 17, 2026
5	Initec Energía	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	168 contacts →
	Indirect evidence “INITEC Energía focuses its activity on the construction of electricity generation facilities.” Source: RevenueBase Database · checked Sep 17, 2026
6	Azcatec Tecnología E Ingeniería	Strong evidence	Sevilla, SpainHQ checked Sep 17, 2026	51-200	98 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
7	Dynatec, S.A	Strong evidence	Madrid, SpainHQ checked Sep 17, 2026	201-500	88 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
8	Ct3 Ingeniería	Indirect evidence	Majadahonda, SpainHQ checked Sep 17, 2026	51-200	75 contacts →
	Indirect evidence “The work of CT3 Ingeniería is aimed at ensuring utmost customer satisfaction through project engagement and commitment, while favouring the professional and personal development…” Source: RevenueBase Database · checked Sep 17, 2026
9	Enso Energy Environment & Sustainability	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	72 contacts →
	Indirect evidence “ENSO Energy Environment and Sustainability se dedica al desarrollo, promoción, construcción y operación de plantas de generación eléctrica y térmica.” Source: RevenueBase Database · checked Sep 17, 2026
10	Grupo Cartago Ingenieros	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
11	Itecla Ingeniería S.L	Indirect evidence	Baena, SpainHQ checked Sep 17, 2026	51-200	30 contacts →
	Indirect evidence “ITECLA es una ingeniería especializada en infraestructuras eléctricas de alta y media tensión y en proyectos de energías renovables a escala utility.” Source: RevenueBase Database · checked Sep 17, 2026
12	Aldama Y Díez Ingenieros Asociados S.L	Strong evidence	Bilbao, SpainHQ checked Sep 17, 2026	11-50	19 contacts →
	Strong evidence “AyD has extensive experience in the development of large projects, fundamentally Conventional Thermal Power Plants and Combined Cycle Power Plants, in their bidding and planning…” Source: RevenueBase Database · checked Sep 17, 2026
13	RPOW	Partial evidence	Sevilla, SpainHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “RPow is a consultancy and engineering firm whose mission is to develop customized solutions for a greener future (Net Zero) through the use of long-duration energy storage systems.” Source: RevenueBase Database · checked Sep 17, 2026
14	Krilinex Power Solutions	Partial evidence	Bilbao, SpainHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “You are Power.” Source: RevenueBase Database · checked Sep 17, 2026
15	Proinelca Power SL	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “PROINELCA POWER SL es una empresa española que desde el año 2006 se dedica a la ingeniería eléctrica, proyectos de control y automatización, así como a la puesta en marcha de…” Source: RevenueBase Database · checked Sep 17, 2026
16	Genelek	Indirect evidence	Zumaia, SpainHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Especializados en el área de generación de la energía: grupos de emergencia, plantas de cogeneración/trigeneración, centrales hidráulicas y de biomasa, district-heating.” Source: RevenueBase Database · checked Sep 17, 2026
17	Agnua Ingeniería	Indirect evidence	Madrid, SpainHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “Somos una empresa de ingeniería y consultoría dedicada al diseño de plantas de tratamiento de agua.” Source: RevenueBase Database · checked Sep 17, 2026
18	Contecs Power Service, S.L	Indirect evidence	Bilbao, SpainHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Our main business core is to provide services to the energy and industrial sector.” Source: RevenueBase Database · checked Sep 17, 2026
19	Greening Energía	Indirect evidence	Granada, SpainHQ checked Sep 17, 2026	201-500	5 contacts →
	Indirect evidence “Creada en 2011 con un firme compromiso con la sostenibilidad, Greening-e es una empresa de ámbito internacional especializada en el diseño, desarrollo, construcción y…” Source: RevenueBase Database · checked Sep 17, 2026
20	Fersisolar S.L	Partial evidence	Madrid, SpainHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “FersiSolar is an Engineering and Consulting company specialized in Concentrated Solar, that services solar thermal installations, that need different technical solutions for…” Source: RevenueBase Database · checked Sep 17, 2026
21	Libener	Indirect evidence	Tomares, SpainHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Orientación al cliente y sus necesidades de inversión y explotación.” Source: RevenueBase Database · checked Sep 17, 2026
22	Hidalgo Moya Ingenieros	Indirect evidence	Alicante, SpainHQ checked Sep 17, 2026	11-50	3 contacts →
	Indirect evidence “HIDALGO MOYA INGENIEROS nace como un despacho técnico de ingeniería industrial, con una especial apuesta por proyectos ligados a la transición energética y el cuidado del…” Source: RevenueBase Database · checked Sep 17, 2026
23	Ingenieria Y Calidad Sostenible SL	Indirect evidence	Oviedo, SpainHQ checked Sep 17, 2026	11-50	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Enginyeria Lliro & Associats, SL	Indirect evidence	Igualada, SpainHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “Projectes d’enginyeria, legalitzacions, instal·lacions industrials i del sector terciari, consultoria industrial, construcció industrial, direccions d’obra, llicències…” Source: RevenueBase Database · checked Sep 17, 2026
25	Altiberia Energia	Indirect evidence	Málaga, SpainHQ checked Sep 17, 2026	51-200	1 contacts →
	Indirect evidence “Altiberia Energía surge para ofrecer un servicio integral de ingeniería en el ámbito de proyectos, ejecución, dirección de obra y gestión energética de centrales termo-eléctricas…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: power plant engineering firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names power plant engineering firms.
Partial evidence: Its own public description names part of power plant engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power plant engineering firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 102 power plant engineering firms based in Spain

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Power plant engineering firms based in Spain at a glance

As of Sep 17, 2026

7.2%Verified-email coverage

25.4Average contacts per company

1-10Median size (employees)

21.6%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

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 102 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among power plant engineering firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Spain whose own description of what they do matches “power plant engineering firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names power plant engineering firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among power plant engineering firms, and records with no verified work email. Companies headquartered outside Spain are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 185 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names power plant engineering firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many power plant engineering firms are there based in Spain?

RevenueBase identified 102 power plant engineering firms headquartered in Spain as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Tecnatom, headquartered in San Sebastian De Los Reyes, tops this list with the largest team on record.

Which city has the most power plant engineering firms?

Madrid leads with 22 headquartered companies, followed by Sevilla (6) and Bilbao (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 185 verified decision-maker contacts tracked across these 102 companies.

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 Smart Search, 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.