Company lists · Data refreshed November 2026
Top 25 Nuclear facility engineering firms based in Spain
RevenueBase identified 111 company matches for nuclear facility engineering firms associated with Spain as of November 2026 and tracks 3,204 professional contacts across them, including 303 with verified work emails. Madrid is the largest hub.
This list covers company matches for nuclear facility 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 facility 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 | 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 | |||||
| 3 | 367 contacts → | ||||
Exact match “JG Ingenieros, S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 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 | |||||
| 5 | 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 | |||||
| 6 | 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 | |||||
| 7 | 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 | |||||
| 8 | 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 | |||||
| 9 | 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 | |||||
| 10 | 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 | |||||
| 11 | 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 | |||||
| 12 | 48 contacts → | ||||
Exact match “Transformamos desafíos en soluciones.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 36 contacts → | ||||
Exact match “INGHO es una empresa de ingeniería creada en 2004 por profesionales independientes, que desarrolla su labor en los servicios de consultoría y asesoría en el ámbito de las…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 33 contacts → | ||||
Exact match “We are a company of advanced technical services for Engineering, Construction and Installations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 30 contacts → | ||||
Exact match “Esparplant es una empresa de ingeniería especializada en el diseño, asesoría y seguimiento de proyectos de construcción e instalaciones en plantas industriales.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 27 contacts → | ||||
Exact match “Soltec Ingenieros SL, founded in 2001, is an independent engineering and consulting firm based in Vigo, Spain.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 20 contacts → | ||||
Exact match “NUSIM develops turnkey engineered systems, automation solutions and special equipment for nuclear, industrial and technical environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 19 contacts → | ||||
Exact match “Navier Ingeniería fue fundada en 2006 por profesionales que poseen una amplia experiencia en el sector de la ingeniería y la consultoría para el desarrollo de infraestructuras e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 18 contacts → | ||||
Exact match “Somos una empresa de ingeniería y arquitectura con un amplio recorrido en el área de la Ingeniería, Construcción, Energía, Medio Ambiente e I+D+I.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 18 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 14 contacts → | ||||
Exact match “Ordeic Ingeniería y Consultoria es una empresa dedicada a los servicios de consultoria de ingeniería en instalaciones, ambientales, energéticos y de seguridad y autoprotección.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 11 contacts → | ||||
Exact match “Tecnologías Asociadas TECNASA is a high-tech electronics and advanced instrumentation company with activities in the areas of nuclear applications, security & defense, nuclear…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 11 contacts → | ||||
Exact match “INSDO nace en el año 2009 con el objetivo de ser un referente de la coordinación e intermediación en la prestación de servicios de ingeniería.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “En INGENEST ayudamos a empresas líderes en diferentes sectores industriales a transformar sus procesos mediante soluciones de ingeniería avanzadas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match “En ATC Systems tenemos más de 20 años de experiencia en el diseño, fabricación y pruebas de procesos industriales en la industria química y energética, incluyendo la generación de…” 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 facility 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 111 nuclear facility engineering firms based in Spain
See the full list, filter by size, metro and specialty, and access 303 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Nuclear facility 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 111 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 facility 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 303 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.
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 facility engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many nuclear facility engineering firms are there based in Spain?
RevenueBase identified 111 company matches for nuclear facility 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 facility engineering firms?
Madrid leads with 23 company records, followed by Barcelona (8) and Seville (8).
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 303 professional contacts with verified work emails tracked across these 111 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 111 nuclear facility engineering firms based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Nuclear facility engineering firms by geography
- Nuclear facility engineering firms based in Sao Paulo, Brazil
- Nuclear facility engineering firms based in Argentina
- Nuclear facility engineering firms based in Australia
- Nuclear facility engineering firms based in Brazil
- Nuclear facility engineering firms based in Canada
- Nuclear facility engineering firms based in Chile
- Nuclear facility engineering firms based in France
- Nuclear facility engineering firms based in Germany
- Nuclear facility engineering firms based in India
- Nuclear facility engineering firms based in Italy
- Nuclear facility engineering firms based in the Netherlands
- Nuclear facility engineering firms based in South Africa
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 facility engineering firms based in Sao Paulo, Brazil
- Nuclear facility engineering firms based in Argentina
- Nuclear facility engineering firms based in Australia
- Nuclear facility engineering firms based in Brazil
- Nuclear facility engineering firms based in Canada
- Nuclear facility engineering firms based in Chile
Company intelligence · public preview
Top 25 nuclear facility 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 111 matching company records for nuclear facility engineering firms based in Spain, with 3,204 tracked contacts and 303 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 facility 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 | 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. | |||||
| 3 |  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. | |||||
| 4 | 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. | |||||
| 5 |  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. | |||||
| 6 |  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. | |||||
| 7 |  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. | |||||
| 8 |  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. | |||||
| 9 |  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. | |||||
| 10 |  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. | |||||
| 11 |  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. | |||||
| 12 |  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. | |||||
| 13 | HQ: Málaga, SpainReported employees: 11-50 | Málaga, Spain | 11-50 | Exact match | 36 contacts → |
“INGHO es una empresa de ingeniería creada en 2004 por profesionales independientes, que desarrolla su labor en los servicios de consultoría y asesoría en el ámbito de las…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  CMN Ingenieríacmningenieria.comHQ: Santa Cruz De Tenerife, SpainReported employees: 11-50 | Santa Cruz De Tenerife, Spain | 11-50 | Exact match | 33 contacts → |
“We are a company of advanced technical services for Engineering, Construction and Installations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Esparplantesparplant.comHQ: Orkoien, SpainReported employees: 11-50 | Orkoien, Spain | 11-50 | Exact match | 30 contacts → |
“Esparplant es una empresa de ingeniería especializada en el diseño, asesoría y seguimiento de proyectos de construcción e instalaciones en plantas industriales.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Soltec Ingenieros S.Lsoltecingenieros.comHQ: Vigo, SpainReported employees: 11-50 | Vigo, Spain | 11-50 | Exact match | 27 contacts → |
“Soltec Ingenieros SL, founded in 2001, is an independent engineering and consulting firm based in Vigo, Spain.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Nusim, S.A.Unusim.comHQ: Seville, SpainReported employees: 11-50 | Seville, Spain | 11-50 | Exact match | 20 contacts → |
“NUSIM develops turnkey engineered systems, automation solutions and special equipment for nuclear, industrial and technical environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Navier Ingenieríanavier.esHQ: Seville, SpainReported employees: 11-50 | Seville, Spain | 11-50 | Exact match | 19 contacts → |
“Navier Ingeniería fue fundada en 2006 por profesionales que poseen una amplia experiencia en el sector de la ingeniería y la consultoría para el desarrollo de infraestructuras e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Arsinger SLarsinger.comHQ: Seville, SpainReported employees: 201-500 | Seville, Spain | 201-500 | Exact match | 18 contacts → |
“Somos una empresa de ingeniería y arquitectura con un amplio recorrido en el área de la Ingeniería, Construcción, Energía, Medio Ambiente e I+D+I.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Aldama Y Díez Ingenieros Asociados S.Laldamaydiez.comHQ: Bilbao, SpainReported employees: 11-50 | Bilbao, Spain | 11-50 | Exact match | 18 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Ordeic Projectes I Consultoriaordeic.comHQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 14 contacts → |
“Ordeic Ingeniería y Consultoria es una empresa dedicada a los servicios de consultoria de ingeniería en instalaciones, ambientales, energéticos y de seguridad y autoprotección.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Tecnasa, Tecnologías Asociadastecnasa.esHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 11 contacts → |
“Tecnologías Asociadas TECNASA is a high-tech electronics and advanced instrumentation company with activities in the areas of nuclear applications, security & defense, nuclear…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Insdo SLinsdosl.comHQ: Barcelona, SpainReported employees: 1-10 | Barcelona, Spain | 1-10 | Exact match | 11 contacts → |
“INSDO nace en el año 2009 con el objetivo de ser un referente de la coordinación e intermediación en la prestación de servicios de ingeniería.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Ingenestingenest.comHQ: León, SpainReported employees: 11-50 | León, Spain | 11-50 | Exact match | 8 contacts → |
“En INGENEST ayudamos a empresas líderes en diferentes sectores industriales a transformar sus procesos mediante soluciones de ingeniería avanzadas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  ATC Systemsatc-sys.comHQ: Torrejón De Ardoz, SpainReported employees: 11-50 | Torrejón De Ardoz, Spain | 11-50 | Exact match | 8 contacts → |
“En ATC Systems tenemos más de 20 años de experiencia en el diseño, fabricación y pruebas de procesos industriales en la industria química y energética, incluyendo la generación de…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 111 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Nuclear facility 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
109 records in the displayed employee bands.
2 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 111 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 ↗
Questions about this company list
What does Exact match mean for nuclear facility 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 facility engineering firms did RevenueBase find based in Spain?
The saved snapshot records 111 matching company records, 3,204 tracked contacts and 303 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 facility engineering firms by geography
- Nuclear facility engineering firms based in Sao Paulo, Brazil
- Nuclear facility engineering firms based in Argentina
- Nuclear facility engineering firms based in Australia
- Nuclear facility engineering firms based in Brazil
- Nuclear facility engineering firms based in Canada
- Nuclear facility engineering firms based in Chile
- Nuclear facility engineering firms based in France
- Nuclear facility engineering firms based in Germany
- Nuclear facility engineering firms based in India
- Nuclear facility engineering firms based in Italy
- Nuclear facility engineering firms based in the Netherlands
- Nuclear facility engineering firms based in South Africa
Cite this list
RevenueBase Data Team. Top 25 nuclear facility engineering firms based in Spain. Snapshot: November 6, 2026. https://revenuebase.ai/companies/nuclear-facility-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 facility engineering firms based in Sao Paulo, Brazil
- Nuclear facility engineering firms based in Argentina
- Nuclear facility engineering firms based in Australia
- Nuclear facility engineering firms based in Brazil
- Nuclear facility engineering firms based in Canada
- Nuclear facility engineering firms based in Chile
Company intelligence · public preview
Top 25 nuclear facility engineering firms based in Spain
RevenueBase records 111 matching company records for nuclear facility engineering firms based in Spain, with 3,204 tracked contacts and 303 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 facility 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 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | 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. | |||||
| 12 | 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. | |||||
| 13 | HQ: Málaga, SpainReported employees: 11-50 | Málaga, Spain | 11-50 | Exact match | 36 contacts → |
“INGHO es una empresa de ingeniería creada en 2004 por profesionales independientes, que desarrolla su labor en los servicios de consultoría y asesoría en el ámbito de las…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | CMN Ingenieríacmningenieria.com HQ: Santa Cruz De Tenerife, SpainReported employees: 11-50 | Santa Cruz De Tenerife, Spain | 11-50 | Exact match | 33 contacts → |
“We are a company of advanced technical services for Engineering, Construction and Installations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Esparplantesparplant.com HQ: Orkoien, SpainReported employees: 11-50 | Orkoien, Spain | 11-50 | Exact match | 30 contacts → |
“Esparplant es una empresa de ingeniería especializada en el diseño, asesoría y seguimiento de proyectos de construcción e instalaciones en plantas industriales.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Soltec Ingenieros S.Lsoltecingenieros.com HQ: Vigo, SpainReported employees: 11-50 | Vigo, Spain | 11-50 | Exact match | 27 contacts → |
“Soltec Ingenieros SL, founded in 2001, is an independent engineering and consulting firm based in Vigo, Spain.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Nusim, S.A.Unusim.com HQ: Seville, SpainReported employees: 11-50 | Seville, Spain | 11-50 | Exact match | 20 contacts → |
“NUSIM develops turnkey engineered systems, automation solutions and special equipment for nuclear, industrial and technical environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Navier Ingenieríanavier.es HQ: Seville, SpainReported employees: 11-50 | Seville, Spain | 11-50 | Exact match | 19 contacts → |
“Navier Ingeniería fue fundada en 2006 por profesionales que poseen una amplia experiencia en el sector de la ingeniería y la consultoría para el desarrollo de infraestructuras e…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Arsinger SLarsinger.com HQ: Seville, SpainReported employees: 201-500 | Seville, Spain | 201-500 | Exact match | 18 contacts → |
“Somos una empresa de ingeniería y arquitectura con un amplio recorrido en el área de la Ingeniería, Construcción, Energía, Medio Ambiente e I+D+I.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Aldama Y Díez Ingenieros Asociados S.Laldamaydiez.com HQ: Bilbao, SpainReported employees: 11-50 | Bilbao, Spain | 11-50 | Exact match | 18 contacts → |
“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…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ordeic Projectes I Consultoriaordeic.com HQ: Barcelona, SpainReported employees: 11-50 | Barcelona, Spain | 11-50 | Exact match | 14 contacts → |
“Ordeic Ingeniería y Consultoria es una empresa dedicada a los servicios de consultoria de ingeniería en instalaciones, ambientales, energéticos y de seguridad y autoprotección.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Tecnasa, Tecnologías Asociadastecnasa.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 11 contacts → |
“Tecnologías Asociadas TECNASA is a high-tech electronics and advanced instrumentation company with activities in the areas of nuclear applications, security & defense, nuclear…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Insdo SLinsdosl.com HQ: Barcelona, SpainReported employees: 1-10 | Barcelona, Spain | 1-10 | Exact match | 11 contacts → |
“INSDO nace en el año 2009 con el objetivo de ser un referente de la coordinación e intermediación en la prestación de servicios de ingeniería.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Ingenestingenest.com HQ: León, SpainReported employees: 11-50 | León, Spain | 11-50 | Exact match | 8 contacts → |
“En INGENEST ayudamos a empresas líderes en diferentes sectores industriales a transformar sus procesos mediante soluciones de ingeniería avanzadas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | ATC Systemsatc-sys.com HQ: Torrejón De Ardoz, SpainReported employees: 11-50 | Torrejón De Ardoz, Spain | 11-50 | Exact match | 8 contacts → |
“En ATC Systems tenemos más de 20 años de experiencia en el diseño, fabricación y pruebas de procesos industriales en la industria química y energética, incluyendo la generación de…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 111 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Nuclear facility 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
109 records in the displayed employee bands.
2 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 111 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 ↗
Questions about this company list
What does Exact match mean for nuclear facility 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 facility engineering firms did RevenueBase find based in Spain?
The saved snapshot records 111 matching company records, 3,204 tracked contacts and 303 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 facility engineering firms by geography
- Nuclear facility engineering firms based in Sao Paulo, Brazil
- Nuclear facility engineering firms based in Argentina
- Nuclear facility engineering firms based in Australia
- Nuclear facility engineering firms based in Brazil
- Nuclear facility engineering firms based in Canada
- Nuclear facility engineering firms based in Chile
- Nuclear facility engineering firms based in France
- Nuclear facility engineering firms based in Germany
- Nuclear facility engineering firms based in India
- Nuclear facility engineering firms based in Italy
- Nuclear facility engineering firms based in the Netherlands
- Nuclear facility engineering firms based in South Africa
Cite this list
RevenueBase Data Team. Top 25 nuclear facility engineering firms based in Spain. Snapshot: November 6, 2026. https://revenuebase.ai/companies/nuclear-facility-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 facility engineering firms based in Sao Paulo, Brazil
- Nuclear facility engineering firms based in Argentina
- Nuclear facility engineering firms based in Australia
- Nuclear facility engineering firms based in Brazil
- Nuclear facility engineering firms based in Canada
- Nuclear facility engineering firms based in Chile