Company lists · Data refreshed November 2026
Top 25 Nuclear power engineering firms based in Spain
RevenueBase identified 378 company matches for nuclear power engineering firms associated with Spain as of November 2026 and tracks 6,937 professional contacts across them, including 784 with verified work emails. Madrid is the largest hub.
This list covers company matches for nuclear power engineering firms 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 November 6, 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.
The 25 largest nuclear power engineering firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 484 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 405 contacts → | ||||
Exact match “Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 394 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 378 contacts → | ||||
Exact match “Se ocupa de la primera parte del ciclo de combustible nuclear (diseño, fabricación y abastecimiento de combustible) prestando servicios de ingeniería y combustible a las Centrales…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 367 contacts → | ||||
Exact match “JG Ingenieros, S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 291 contacts → | ||||
Exact match “Desde 1970 ESTEYCO ha desarrollado internacionalmente más de 1.300 estudios y proyectos.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 272 contacts → | ||||
Exact match “ECOINTEGRAL INGENIERÍA is an independent company of advanced engineering and consulting firm that operates in 3 areas of expertise: Energy, Telecommunications and Environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 264 contacts → | ||||
Exact match “Fabricación de componentes para la industria nuclear.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 159 contacts → | ||||
Exact match “ENWESA es una empresa de servicios y fabricación especializada en servicios nucleares, revisión y mantenimiento de válvulas industriales, fabricación de depósitos a presión e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 144 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 108 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 108 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 96 contacts → | ||||
Exact match “Emurtel es una compañía líder de ingeniería y consultoría multidisciplinar orientada a la gestión integral de proyectos, ofreciendo soluciones de valor añadido en el diseño…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 93 contacts → | ||||
Exact match “EACOM S.A.(Enginyers i Arquitectes, Consultors d'Obres i Muntatges S.A.) es una sociedad privada consultora de servicios y actividades de ingeniería, que nace con las obras…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 81 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 65 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 58 contacts → | ||||
Exact match “Marsein es una empresa de origen familiar que, desde hace más de 30 años, centra su actividad en la prestación de servicios de soporte en centrales nucleares, incluyendo…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 57 contacts → | ||||
Exact match “Azigrene es una empresa de servicios de Consultoría e Ingeniería Energética, que desarrolla su actividad en- Reducción del coste: Definición de la mejor estrategia de compra…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 53 contacts → | ||||
Exact match “Somos una consultoría e ingeniería multinacional con más de 95 años de historia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 52 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 51 contacts → | ||||
Exact match “We are an independent consulting firm, specializing in providing engineering services, software development and management, whose main asset is the high technical level and the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 48 contacts → | ||||
Exact match “Opex Energy is an engineering and technical assistance company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 48 contacts → | ||||
Exact match “Transformamos desafíos en soluciones.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 45 contacts → | ||||
Exact match “Desde nuestra sede en Valladolid, Cuarta Esfera acumula más de 29 años de experiencia ofreciendo soluciones innovadoras en ingeniería industrial.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 42 contacts → | ||||
Exact match “En IVER Ingeniería & Arquitectura nos avalan 28 años de experiencia como consultora de Ingeniería & Arquitectura en Valencia.” Recorded in the RevenueBase company graph · Nov 6, 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 “nuclear power engineering firms”. 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 378 nuclear power engineering firms based in Spain
See the full list, filter by size, metro and specialty, and access 784 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Nuclear power engineering firms based in Spain at a glance
As of Nov 6, 2026Companies by employee count
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 378 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 “nuclear power engineering firms” 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 784 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 November 6, 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.
Nuclear power engineering firms by metro
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 “nuclear power engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many nuclear power engineering firms are there based in Spain?
RevenueBase identified 378 company matches for nuclear power engineering firms associated with Spain as of November 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?
Tecnatom tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most nuclear power engineering firms?
Madrid leads with 49 company records, followed by Barcelona (27) and Seville (20).
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 784 professional contacts with verified work emails tracked across these 378 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 378 nuclear power engineering firms based in Spain. Start with a free account, no credit card.
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Nuclear power engineering firms by geography
- Nuclear power engineering firms based in Belo Horizonte, Brazil
- Nuclear power engineering firms based in Rio De Janeiro, Brazil
- Nuclear power engineering firms based in Sao Paulo, Brazil
- Nuclear power engineering firms based in Calgary, Canada
- Nuclear power engineering firms based in Montreal, Canada
- Nuclear power engineering firms based in Toronto, Canada
- Nuclear power engineering firms based in Lyon, France
- Nuclear power engineering firms based in Paris, France
- Nuclear power engineering firms based in Berlin, Germany
- Nuclear power engineering firms based in Chennai, India
- Nuclear power engineering firms based in Milan, Italy
- Nuclear power engineering firms based in Rome, Italy
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Nuclear power engineering firms based in Belo Horizonte, Brazil
- Nuclear power engineering firms based in Rio De Janeiro, Brazil
- Nuclear power engineering firms based in Sao Paulo, Brazil
- Nuclear power engineering firms based in Calgary, Canada
- Nuclear power engineering firms based in Montreal, Canada
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Company intelligence · public preview
Top 25 nuclear power engineering firms based in Spain
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 378 matching company records for nuclear power engineering firms based in Spain, with 6,937 tracked contacts and 784 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nuclear power engineering firms based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Tecnatomtecnatom.esHQ: San Sebastian De Los Reyes, SpainReported employees: 501-1,000 | San Sebastian De Los Reyes, Spain | 501-1,000 | Exact match | 484 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Iplan Gestión Integraliplangestion.comHQ: Barcelona, SpainReported employees: 501-1,000 | Barcelona, Spain | 501-1,000 | Exact match | 405 contacts → |
“Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Intecsa Industrialintecsaindustrial.comHQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 394 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 378 contacts → |
“Se ocupa de la primera parte del ciclo de combustible nuclear (diseño, fabricación y abastecimiento de combustible) prestando servicios de ingeniería y combustible a las Centrales…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  JG Ingenieros S.Ajgingenieros.esHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 367 contacts → |
“JG Ingenieros, S.A.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Esteycoesteyco.comHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 291 contacts → |
“Desde 1970 ESTEYCO ha desarrollado internacionalmente más de 1.300 estudios y proyectos.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Ecointegral Ingeniería, SLecointegral.comHQ: Córdoba, SpainReported employees: 201-500 | Córdoba, Spain | 201-500 | Exact match | 272 contacts → |
“ECOINTEGRAL INGENIERÍA is an independent company of advanced engineering and consulting firm that operates in 3 areas of expertise: Energy, Telecommunications and Environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Maliaño, SpainReported employees: 201-500 | Maliaño, Spain | 201-500 | Exact match | 264 contacts → |
“Fabricación de componentes para la industria nuclear.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Enwesa Operaciones S.A., S.M.Eenwesa.comHQ: Heras, SpainReported employees: 201-500 | Heras, Spain | 201-500 | Exact match | 159 contacts → |
“ENWESA es una empresa de servicios y fabricación especializada en servicios nucleares, revisión y mantenimiento de válvulas industriales, fabricación de depósitos a presión e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Vestel Ingenierosvestelingenieros.comHQ: Paterna, SpainReported employees: 51-200 | Paterna, Spain | 51-200 | Exact match | 144 contacts → |
“Vestel Ingenieros es una empresa con 20 años de experiencia que tiene el propósito de convertirse en la ingeniería eléctrica nº1 de España.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Dynatec, S.Adynatec.esHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 108 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Azcatec Tecnología E Ingenieríaazcatec.comHQ: Seville, SpainReported employees: 51-200 | Seville, Spain | 51-200 | Exact match | 108 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Emurtelemurtel.esHQ: El Palmar (murcia), SpainReported employees: 51-200 | El Palmar (murcia), Spain | 51-200 | Exact match | 96 contacts → |
“Emurtel es una compañía líder de ingeniería y consultoría multidisciplinar orientada a la gestión integral de proyectos, ofreciendo soluciones de valor añadido en el diseño…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  EACOMeacomsa.comHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 93 contacts → |
“EACOM S.A.(Enginyers i Arquitectes, Consultors d'Obres i Muntatges S.A.) es una sociedad privada consultora de servicios y actividades de ingeniería, que nace con las obras…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ct3 Ingenieríact3.esHQ: Majadahonda, SpainReported employees: 51-200 | Majadahonda, Spain | 51-200 | Exact match | 81 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Grupo Cartago Ingenieroscartago-ingenieros.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 65 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Marsein UNA Empresa DE Nuviamarsein.comHQ: Tarragona, SpainReported employees: 201-500 | Tarragona, Spain | 201-500 | Exact match | 58 contacts → |
“Marsein es una empresa de origen familiar que, desde hace más de 30 años, centra su actividad en la prestación de servicios de soporte en centrales nucleares, incluyendo…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Azigrene Energy Consultingazigrene.esHQ: Valencia/valència, SpainReported employees: 51-200 | Valencia/valència, Spain | 51-200 | Exact match | 57 contacts → |
“Azigrene es una empresa de servicios de Consultoría e Ingeniería Energética, que desarrolla su actividad en- Reducción del coste: Definición de la mejor estrategia de compra…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Deerns Spaindeerns.comHQ: Barcelona, SpainReported employees: 501-1,000 | Barcelona, Spain | 501-1,000 | Exact match | 53 contacts → |
“Somos una consultoría e ingeniería multinacional con más de 95 años de historia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Syltecsyltec.comHQ: Valladolid, SpainReported employees: 51-200 | Valladolid, Spain | 51-200 | Exact match | 52 contacts → |
“SYLTEC es una empresa independiente, constituída con el objetivo de ofrecer servicios integrales de ingeniería, consultoría y formación a nivel nacional.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Malena Engineering S.Lmalena-eng.comHQ: Valladolid | Jaén | Barcelona | Francia | Uk, SpainReported employees: 51-200 | Valladolid | Jaén | Barcelona | Francia | Uk, Spain | 51-200 | Exact match | 51 contacts → |
“We are an independent consulting firm, specializing in providing engineering services, software development and management, whose main asset is the high technical level and the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Opex Energyopex-energy.comHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 48 contacts → |
“Opex Energy is an engineering and technical assistance company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Fénix Ingeniería Y Arquitecturafenixingenieria.esHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 48 contacts → |
“Transformamos desafíos en soluciones.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Cuarta Esferacuartaesfera.esHQ: Laguna De Duero, SpainReported employees: 51-200 | Laguna De Duero, Spain | 51-200 | Exact match | 45 contacts → |
“Desde nuestra sede en Valladolid, Cuarta Esfera acumula más de 29 años de experiencia ofreciendo soluciones innovadoras en ingeniería industrial.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: SpainReported employees: Not recorded | Spain | Not recorded | Exact match | 42 contacts → |
“En IVER Ingeniería & Arquitectura nos avalan 28 años de experiencia como consultora de Ingeniería & Arquitectura en Valencia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 378 company matches
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Nuclear power engineering firms: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
374 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 378 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Nuclear power engineering firms by metro
Questions about this company list
What does Exact match mean for nuclear power engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nuclear power engineering firms did RevenueBase find based in Spain?
The saved snapshot records 378 matching company records, 6,937 tracked contacts and 784 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Nuclear power engineering firms by geography
- Nuclear power engineering firms based in Belo Horizonte, Brazil
- Nuclear power engineering firms based in Rio De Janeiro, Brazil
- Nuclear power engineering firms based in Sao Paulo, Brazil
- Nuclear power engineering firms based in Calgary, Canada
- Nuclear power engineering firms based in Montreal, Canada
- Nuclear power engineering firms based in Toronto, Canada
- Nuclear power engineering firms based in Lyon, France
- Nuclear power engineering firms based in Paris, France
- Nuclear power engineering firms based in Berlin, Germany
- Nuclear power engineering firms based in Chennai, India
- Nuclear power engineering firms based in Milan, Italy
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Cite this list
RevenueBase Data Team. Top 25 nuclear power engineering firms based in Spain. Snapshot: November 6, 2026. https://revenuebase.ai/companies/nuclear-power-engineering-firms/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Nuclear power engineering firms based in Belo Horizonte, Brazil
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Company intelligence · public preview
Top 25 nuclear power engineering firms based in Spain
RevenueBase records 378 matching company records for nuclear power engineering firms based in Spain, with 6,937 tracked contacts and 784 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 nuclear power engineering firms based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Tecnatomtecnatom.es HQ: San Sebastian De Los Reyes, SpainReported employees: 501-1,000 | San Sebastian De Los Reyes, Spain | 501-1,000 | Exact match | 484 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Iplan Gestión Integraliplangestion.com HQ: Barcelona, SpainReported employees: 501-1,000 | Barcelona, Spain | 501-1,000 | Exact match | 405 contacts → |
“Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Intecsa Industrialintecsaindustrial.com HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 394 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Madrid, SpainReported employees: 501-1,000 | Madrid, Spain | 501-1,000 | Exact match | 378 contacts → |
“Se ocupa de la primera parte del ciclo de combustible nuclear (diseño, fabricación y abastecimiento de combustible) prestando servicios de ingeniería y combustible a las Centrales…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | JG Ingenieros S.Ajgingenieros.es HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 367 contacts → |
“JG Ingenieros, S.A.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Esteycoesteyco.com HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 291 contacts → |
“Desde 1970 ESTEYCO ha desarrollado internacionalmente más de 1.300 estudios y proyectos.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Ecointegral Ingeniería, SLecointegral.com HQ: Córdoba, SpainReported employees: 201-500 | Córdoba, Spain | 201-500 | Exact match | 272 contacts → |
“ECOINTEGRAL INGENIERÍA is an independent company of advanced engineering and consulting firm that operates in 3 areas of expertise: Energy, Telecommunications and Environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Maliaño, SpainReported employees: 201-500 | Maliaño, Spain | 201-500 | Exact match | 264 contacts → |
“Fabricación de componentes para la industria nuclear.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Enwesa Operaciones S.A., S.M.Eenwesa.com HQ: Heras, SpainReported employees: 201-500 | Heras, Spain | 201-500 | Exact match | 159 contacts → |
“ENWESA es una empresa de servicios y fabricación especializada en servicios nucleares, revisión y mantenimiento de válvulas industriales, fabricación de depósitos a presión e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Vestel Ingenierosvestelingenieros.com HQ: Paterna, SpainReported employees: 51-200 | Paterna, Spain | 51-200 | Exact match | 144 contacts → |
“Vestel Ingenieros es una empresa con 20 años de experiencia que tiene el propósito de convertirse en la ingeniería eléctrica nº1 de España.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Dynatec, S.Adynatec.es HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 108 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Azcatec Tecnología E Ingenieríaazcatec.com HQ: Seville, SpainReported employees: 51-200 | Seville, Spain | 51-200 | Exact match | 108 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Emurtelemurtel.es HQ: El Palmar (murcia), SpainReported employees: 51-200 | El Palmar (murcia), Spain | 51-200 | Exact match | 96 contacts → |
“Emurtel es una compañía líder de ingeniería y consultoría multidisciplinar orientada a la gestión integral de proyectos, ofreciendo soluciones de valor añadido en el diseño…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | EACOMeacomsa.com HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 93 contacts → |
“EACOM S.A.(Enginyers i Arquitectes, Consultors d'Obres i Muntatges S.A.) es una sociedad privada consultora de servicios y actividades de ingeniería, que nace con las obras…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ct3 Ingenieríact3.es HQ: Majadahonda, SpainReported employees: 51-200 | Majadahonda, Spain | 51-200 | Exact match | 81 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Grupo Cartago Ingenieroscartago-ingenieros.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 65 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Marsein UNA Empresa DE Nuviamarsein.com HQ: Tarragona, SpainReported employees: 201-500 | Tarragona, Spain | 201-500 | Exact match | 58 contacts → |
“Marsein es una empresa de origen familiar que, desde hace más de 30 años, centra su actividad en la prestación de servicios de soporte en centrales nucleares, incluyendo…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Azigrene Energy Consultingazigrene.es HQ: Valencia/valència, SpainReported employees: 51-200 | Valencia/valència, Spain | 51-200 | Exact match | 57 contacts → |
“Azigrene es una empresa de servicios de Consultoría e Ingeniería Energética, que desarrolla su actividad en- Reducción del coste: Definición de la mejor estrategia de compra…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Deerns Spaindeerns.com HQ: Barcelona, SpainReported employees: 501-1,000 | Barcelona, Spain | 501-1,000 | Exact match | 53 contacts → |
“Somos una consultoría e ingeniería multinacional con más de 95 años de historia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Syltecsyltec.com HQ: Valladolid, SpainReported employees: 51-200 | Valladolid, Spain | 51-200 | Exact match | 52 contacts → |
“SYLTEC es una empresa independiente, constituída con el objetivo de ofrecer servicios integrales de ingeniería, consultoría y formación a nivel nacional.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Malena Engineering S.Lmalena-eng.com HQ: Valladolid | Jaén | Barcelona | Francia | Uk, SpainReported employees: 51-200 | Valladolid | Jaén | Barcelona | Francia | Uk, Spain | 51-200 | Exact match | 51 contacts → |
“We are an independent consulting firm, specializing in providing engineering services, software development and management, whose main asset is the high technical level and the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Opex Energyopex-energy.com HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 48 contacts → |
“Opex Energy is an engineering and technical assistance company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Fénix Ingeniería Y Arquitecturafenixingenieria.es HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 48 contacts → |
“Transformamos desafíos en soluciones.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Cuarta Esferacuartaesfera.es HQ: Laguna De Duero, SpainReported employees: 51-200 | Laguna De Duero, Spain | 51-200 | Exact match | 45 contacts → |
“Desde nuestra sede en Valladolid, Cuarta Esfera acumula más de 29 años de experiencia ofreciendo soluciones innovadoras en ingeniería industrial.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: SpainReported employees: Not recorded | Spain | Not recorded | Exact match | 42 contacts → |
“En IVER Ingeniería & Arquitectura nos avalan 28 años de experiencia como consultora de Ingeniería & Arquitectura en Valencia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 378 company matches
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Nuclear power engineering firms: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
374 records in the displayed employee bands.
4 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 378 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Nuclear power engineering firms by metro
Questions about this company list
What does Exact match mean for nuclear power engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many nuclear power engineering firms did RevenueBase find based in Spain?
The saved snapshot records 378 matching company records, 6,937 tracked contacts and 784 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 nuclear power engineering firms based in Spain. Snapshot: November 6, 2026. https://revenuebase.ai/companies/nuclear-power-engineering-firms/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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