# Top 50 multinational companies in Basque Country

Tamtam tracks 117 multinational companies headquartered in Basque Country. This list ranks the 50 largest by number of employees on LinkedIn, led by BBVA, Siemens Gamesa and CAF (Construcciones y Auxiliar de Ferrocarriles). Their median headcount is 723. Half of them were founded in 1971 or later. The most common headquarters are Bilbao (9) and San Sebastián (4).

The multinational companies in Basque Country are a mix of large established groups and mid-sized firms, predominantly in engineering, manufacturing, and financial services. BBVA is a global banking company, Siemens Gamesa specializes in wind turbine technology, CAF designs and manufactures transportation systems, and IDOM Consulting, Engineering, Architecture offers consulting and engineering services. Sener provides innovative solutions across various sectors, and DOMINION GLOBAL offers sustainable services in industry and technology.

A notable pattern is the concentration of headquarters in Bilbao, which is home to BBVA, IDOM Consulting, Engineering, Architecture, DOMINION GLOBAL, and CIE Automotive. Other significant locations include Zamudio, with Siemens Gamesa and ITP Aero, and Hernani, with Orona Group and ORONA. This indicates a strong regional hub for these diverse multinational operations.

🇪🇸 Basque Country · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [BBVA](https://www.tamtam.ai/c/bbva) (bbva.com)<br>Global banking company driving digital transformation to provide cutting edge solutions to 85 million customers worldwide through collaborative and innovative work culture | Banking | 🇪🇸 Bilbao | 130,572 | 1857 |
| 2 | [Siemens Gamesa](https://www.tamtam.ai/c/siemens-gamesa) (siemensgamesa.com)<br>Global technology leader in renewable energy industry, specializing in wind turbine development, manufacturing, installation, and maintenance Driving energy transition towards sustainability | Renewable Energy Semiconductor Manufacturing | 🇪🇸 Zamudio | 19,821 | 2017 |
| 3 | [CAF (Construcciones y Auxiliar de Ferrocarriles)](https://www.tamtam.ai/c/caf-construcciones-y-auxiliar-de-ferrocarriles) (cafmobility.com)<br>Designs and manufactures advanced sustainable transportation systems including accessible rail vehicles and zero-emission urban buses worldwide. | Motor Vehicle Manufacturing | 🇪🇸 Beasain | 10,000 | 1917 |
| 4 | [IDOM Consulting, Engineering, Architecture](https://www.tamtam.ai/c/idom-consulting-engineering-architecture) (idom.com)<br>A multinational consulting, engineering, and architecture firm offering personalized client services, delivering independent, impartial global projects with a diverse, engaged workforce | Engineering Services | 🇪🇸 Bilbao | 5,424 | 1957 |
| 5 | [Sener](https://www.tamtam.ai/c/sener) (group.sener)<br>Responds to demanding challenges with innovative, efficient solutions, advancing society across aerospace, defense, energy, mobility, data centers, and digital sectors for 70 years. | Engineering Services | 🇪🇸 Getxo | 4,878 | 1956 |
| 6 | [DOMINION GLOBAL](https://www.tamtam.ai/c/dominion-global) (dominion-global.com)<br>A sustainable services company offering comprehensive solutions in industry, technology, energy, and infrastructure, focusing on efficiency and environmental friendliness Operating globally | Business Consulting and Services | 🇪🇸 Bilbao-Bilbo | 3,712 | 1999 |
| 7 | [ITP Aero](https://www.tamtam.ai/c/itp-aero) (itpaero.com)<br>A leading aircraft engine and component company developing technology for a sustainable aerospace future, with global facilities and commitment to net zero carbon emissions | Aviation and Aerospace Component Manufacturing | 🇪🇸 Zamudio | 3,345 | 1989 |
| 8 | [Orona Group](https://www.tamtam.ai/c/orona-group) (orona-group.com)<br>Design manufacture install maintain modernize lifts escalators with innovations in traffic management space optimization comfort safety across Europe. | Mechanical Or Industrial Engineering | 🇪🇸 Hernani | 2,818 | 1964 |
| 9 | [CIE Automotive](https://www.tamtam.ai/c/cie-automotive) (cieautomotive.com)<br>An industrial group specializing in supplying automotive components and subassemblies on a global scale, offering various technologies to meet customer needs | Motor Vehicle Parts Manufacturing | 🇪🇸 Bilbao | 2,561 | 2002 |
| 10 | [Ibermática](https://www.tamtam.ai/c/ibermatica) (ayesa.com)<br>A leading Spanish IT services company offering consulting, infrastructure services, system integration, outsourcing, and ERP solutions across multiple industries | IT Services and IT Consulting | 🇪🇸 Donostia-San Sebastian | 2,144 | 1973 |
| 11 | [GES - Global Energy Services](https://www.tamtam.ai/c/ges-global-energy-services) (services-ges.com)<br>Provides comprehensive services for renewable energy projects, including design, construction, installation, and maintenance across various technologies and geographies. | Services for Renewable Energy | 🇪🇸 Zamudio | 1,835 | 1994 |
| 12 | [ULMA Construction](https://www.tamtam.ai/c/ulma-construction) (ulmaconstruction.com)<br>Manufacture and distribution of formwork, shoring, scaffolding systems with technical support for construction, civil engineering, and restoration projects worldwide. | Construction | 🇪🇸 Oñati | 1,675 | 1961 |
| 13 | [ORONA](https://www.tamtam.ai/c/orona) (orona-group.com)<br>A European business group specializing in vertical lifting solutions, offering design, manufacturing, installation, maintenance, and modernization of elevators and escalators | Construction | 🇪🇸 Hernani | 1,659 | 1964 |
| 14 | [FAES FARMA](https://www.tamtam.ai/c/faes-farma) (faesfarma.com)<br>A Spanish pharmaceutical company with international presence, Faes Farma conducts research, produces, and markets pharmaceutical products and raw materials, exporting globally | Pharmaceutical Manufacturing | 🇪🇸 Vizcaya | 1,519 | 1933 |
| 15 | [Vidrala](https://www.tamtam.ai/c/vidrala) (vidrala.com)<br>Consumer packaging company specializing in glass containers for food and beverage products, offering packaging services, logistic solutions, and beverage filling activities to major brands globally | Packaging and Containers Manufacturing | 🇪🇸 Llodio | 1,440 | 1965 |
| 16 | [Arteche](https://www.tamtam.ai/c/arteche) (arteche.com)<br>A leading provider of high-tech solutions and equipment for the electric power industry worldwide, including instrument transformers, relays, protection equipment, and automation systems | Electrical Equipment Manufacturing | 🇪🇸 Mungia | 1,422 | 1946 |
| 17 | [Teknei](https://www.tamtam.ai/c/teknei) (teknei.com)<br>A leading technology services and consulting firm specializing in innovative digital solutions, business automation, cybersecurity, and infrastructure modernization, with a focus on fostering innovation and collaboration among its team | IT Services and IT Consulting | 🇪🇸 Bilbao | 1,242 | 2010 |
| 18 | [FAGOR EDERLAN \| Global Automotive Components](https://www.tamtam.ai/c/fagor-ederlan-global-automotive-components) (fagorederlan.com)<br>A global leader in manufacturing chassis, powertrain, and structural components for the automotive industry with a focus on sustainability and innovation | Motor Vehicle Parts Manufacturing | 🇪🇸 Eskoriatza | 1,117 | 1963 |
| 19 | [ULMA Packaging](https://www.tamtam.ai/c/ulma-packaging) (ulmapackaging.com)<br>Leading provider of packaging solutions offering personalization, friendly service, and cutting-edge technology to meet customer needs | Machinery Manufacturing | 🇪🇸 Oñati | 1,112 | 1961 |
| 20 | [Salto](https://www.tamtam.ai/c/salto) (saltosystems.com)<br>A global leader in access control technologies, part of a unique brand platform focused on digital transformation through innovative solutions | Appliances, Electrical, and Electronics Manufacturing | 🇪🇸 Oiartzun | 1,056 | 2001 |
| 21 | [RDT ENGINEERS](https://www.tamtam.ai/c/rdt-engineers) (rdt.com)<br>Development of advanced technological engineering and IT solutions providing clients competitive advantages with agility, flexibility, and sustainable innovation worldwide. | IT Services and IT Consulting | 🇪🇸 Derio | 985 | 2006 |
| 22 | [PKF Attest](https://www.tamtam.ai/c/pkf-attest) (pkf-attest.es)<br>A leading professional services firm in Spain, part of PKF International Network, with over 600 professionals and 11 offices across the country | Business Consulting and Services | 🇪🇸 Bilbao | 904 | 1990 |
| 23 | [TAMOIN](https://www.tamtam.ai/c/tamoin) (tamoin.com)<br>Specializing in industrial services such as engineering, construction, maintenance, and overhauls for clients in renewable energies, power generation, and oil & gas sectors | Mechanical Or Industrial Engineering | 🇪🇸 Erandio/ Altzaga | 861 | 1956 |
| 24 | [Nervion Industries, Engineering & Services, S.L.](https://www.tamtam.ai/c/nervion-industries-engineering-and-services-s-l) (nervionindustries.com)<br>Provider of industrial services and engineering solutions since 1953, specializing in installations, maintenance, construction, and complex industrial projects across various sectors | Industrial Machinery Manufacturing | 🇪🇸 Bilbao | 854 | 1953 |
| 25 | [MAIER Group](https://www.tamtam.ai/c/maier-group) (maier.es)<br>European leader in decorating plastic parts and manufacturing complex injection moldings for the automotive industry Offers chrome plating, painting, laser etching, and hot stamping technologies | Motor Vehicle Parts Manufacturing | 🇪🇸 Gernika | 723 | 1975 |
| 26 | [IKUSI](https://www.tamtam.ai/c/ikusi) (ikusi.com)<br>Specializing in IT and communication technologies, the company offers secure information management and digital solutions for various industries to streamline business processes and drive digital transformation | Telecommunications | 🇪🇸 San Sebastián | 702 |  |
| 27 | [Sidenor Aceros Especiales](https://www.tamtam.ai/c/sidenor-aceros-especiales) (sidenor.com)<br>A leading European steel producer of special steel long products and cold finished products with production centers and business delegations across Europe | Mining | 🇪🇸 Basauri | 643 |  |
| 28 | [Grupo Elektra](https://www.tamtam.ai/c/grupo-elektra-san-sebastian) (grupoelektra.es)<br>A national leader in distributing electrical and electronic materials, providing solutions in communication networks, industrial automation, energy efficiency, and more | Mechanical Or Industrial Engineering | 🇪🇸 San Sebastián | 629 | 1978 |
| 29 | [Ayesa Digital](https://www.tamtam.ai/c/ayesa-digital) (ayesa-dig.com)<br>Designing, integrating, and operating digital platforms for large organizations, enhancing operational models, protecting assets, and creating competitive advantages with technology. | IT Services and IT Consulting | 🇪🇸 San Sebastián | 628 |  |
| 30 | [AMPO](https://www.tamtam.ai/c/ampo) (ampo.com)<br>Global leader in stainless steel and high alloy castings, and highly engineered valves for severe applications worldwide, providing technical support and maintenance services | Oil, Gas, and Mining | 🇪🇸 Idiazabal | 625 | 1964 |
| 31 | [GH Cranes & Components](https://www.tamtam.ai/c/gh-cranes-and-components) (ghcranes.com)<br>Manufacturing hoists, cranes, and components for lifting machinery, GH provides reliable, safe, and durable solutions for industries worldwide | Industrial Machinery Manufacturing | 🇪🇸 Beasain | 607 |  |
| 32 | [TUBACEX](https://www.tamtam.ai/c/tubacex) (tubacex.com)<br>A world leader in designing, manufacturing, and installing industrial products and services for the energy and mobility sectors globally | Oil and Gas | 🇪🇸 Llodio | 601 | 1963 |
| 33 | [AgileTV](https://www.tamtam.ai/c/agiletv) (agiletv.com)<br>A leading provider of digital TV/OTT and video delivery solutions, empowering customers to transform digital video content consumption through innovative technology | IT Services and IT Consulting | 🇪🇸 Bilbao | 539 |  |
| 34 | [BOSLAN Ingeniería y Consultoría](https://www.tamtam.ai/c/boslan-ingenieria-y-consultoria) (accenture.com)<br>Specializing in offshore wind energy, renewable energies, green hydrogen, and retail, we offer integrated management systems and a skilled team for comprehensive project solutions | Engineering Services | 🇪🇸 Bilbao | 534 | 2000 |
| 35 | [Fagor Arrasate S. Coop.](https://www.tamtam.ai/c/fagor-arrasate-s-coop) (fagorarrasate.com)<br>A global leader in the design and manufacture of mechanical and hydraulic presses, stamping systems, cutting and processing lines, and metal part forming equipment | Automation Machinery Manufacturing | 🇪🇸 Arrasate-Mondragon | 534 | 1957 |
| 36 | [Vaillant Group Spain](https://www.tamtam.ai/c/vaillant-group-spain) (vaillant-group.com)<br>A leader in heating, ventilation, and air conditioning technology, specializing in high-efficiency products with a focus on sustainability and employee well-being | Renewables & Environment | 🇪🇸 Zamudio | 500 |  |
| 37 | [Multiverse Computing](https://www.tamtam.ai/c/multiverse-computing) (multiversecomputing.com)<br>A deep-tech company specializing in Quantum Computing and AI, offering hyper-efficient software for various industries to gain a competitive edge | Software Development | 🇪🇸 San Sebastián | 497 | 2019 |
| 38 | [Walter Pack](https://www.tamtam.ai/c/walter-pack) (walterpack.com)<br>Designs and manufactures functional decorative plastic parts for automotive, home appliances, and consumer electronics, utilizing advanced technologies and bespoke solutions. | Motor Vehicle Parts Manufacturing | 🇪🇸 Igorre | 487 | 1992 |
| 39 | [BATZ GROUP](https://www.tamtam.ai/c/batz-group) (batz.com)<br>Designing, manufacturing composite lightweight structures, active aerodynamic components, mechanical and mechatronic control systems to reduce CO2 emissions for automotive OEMs. | Motor Vehicle Manufacturing | 🇪🇸 Igorre | 464 | 1963 |
| 40 | [CARSA](https://www.tamtam.ai/c/carsa) (carsa.es)<br>Strategic consulting firm specializing in innovation, technology, and digital transformation services for organizations worldwide, driving competitiveness, growth, and change | Business Consulting and Services | 🇪🇸 Getxo - Las Arenas | 459 |  |
| 41 | [Haizea Wind Group](https://www.tamtam.ai/c/haizea-wind-group) (haizeawindgroup.com)<br>An industrial company based in Spain manufacturing wind towers and offshore foundations, aiming to become a global wind supplier with new global facilities | Renewable Energy Semiconductor Manufacturing | 🇪🇸 Zierbena | 443 | 2017 |
| 42 | [Ingeteam Power Technology](https://www.tamtam.ai/c/ingeteam-power-technology) (ingeteam.com)<br>Specializing in power and control electronics, generators, motors, and pumps, the company offers maintenance services and operates globally with a focus on R&D | Appliances, Electrical, and Electronics Manufacturing | 🇪🇸 Zamudio | 420 |  |
| 43 | [Tubos Reunidos Group](https://www.tamtam.ai/c/tubos-reunidos-group) (tubosreunidosgroup.com)<br>Global leader in premium seamless steel tubular products, specializing in niche segments with tailored solutions for clients worldwide in various industries | Manufacturing | 🇪🇸 Amurrio | 419 | 1892 |
| 44 | [Ayesa](https://www.tamtam.ai/c/ayesa-mendaro) (ayesa.com)<br>Provider of IT services and consulting for businesses and government entities Offers a wide range of services from planning to implementation and management, specializing in infrastructure, virtualization, storage, and cloud computing | Computer and Network Security | 🇪🇸 Mendaro | 410 | 2007 |
| 45 | [JCM](https://www.tamtam.ai/c/jcm) (jcm.es)<br>Supplying machinery and tools for flat glass transformation since 1987, collaborating with top global suppliers to provide personalized solutions for clients in the glass industry | Glass, Ceramics and Concrete Manufacturing | 🇪🇸 Zamudio | 402 | 1987 |
| 46 | [DANOBAT](https://www.tamtam.ai/c/danobat) (danobat.com)<br>A global leader in manufacturing innovative precision grinding machines, lathes, and robotic systems, providing tailored solutions to enhance competitiveness worldwide | Industrial Machinery Manufacturing | 🇪🇸 Elgóibar | 399 | 1954 |
| 47 | [Panda Security](https://www.tamtam.ai/c/panda-security) (pandasecurity.com)<br>European company specializing in advanced cybersecurity solutions and services, providing EDR systems, management, and monitoring tools to clients worldwide. | Computer and Network Security | 🇪🇸 Bilbao | 391 | 1990 |
| 48 | [Copreci](https://www.tamtam.ai/c/copreci) (copreci.com)<br>Appliance manufacturer with a customer-oriented policy, operating internationally with 9 production centers and serving major appliance groups worldwide | Manufacturing | 🇪🇸 Aretxabaleta | 378 | 1963 |
| 49 | [HINE Group](https://www.tamtam.ai/c/hine-group) (hinegroup.com)<br>A leading provider of hydraulic systems, components, and cooling solutions for industrial and renewable energy sectors worldwide with over four decades of experience | Machinery Manufacturing | 🇪🇸 Olaberria | 378 | 1974 |
| 50 | [CIKAUTXO](https://www.tamtam.ai/c/cikautxo) (cikautxo.es)<br>A company belonging to the MONDRAGON Corporation specializing in developing and manufacturing rubber and plastic components for various applications | Motor Vehicle Parts Manufacturing | 🇪🇸 Berriatua | 363 | 1971 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

## More company lists in Basque Country

- [The largest companies in Basque Country](https://www.tamtam.ai/l/largest-companies-basque-country) (464)
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## The same list elsewhere in Spain

- [Multinational companies in Spain](https://www.tamtam.ai/l/multinational-companies-spain) (2,706)
- [Multinational companies in Community of Madrid](https://www.tamtam.ai/l/multinational-companies-community-of-madrid) (1,059)
- [Multinational companies in Catalonia](https://www.tamtam.ai/l/multinational-companies-catalonia) (680)
- [Multinational companies in Valencian Community](https://www.tamtam.ai/l/multinational-companies-valencian-community) (196)
- [Multinational companies in Andalusia](https://www.tamtam.ai/l/multinational-companies-andalusia) (176)
- [Multinational companies in Balearic Islands](https://www.tamtam.ai/l/multinational-companies-balearic-islands) (77)
- [Multinational companies in Aragon](https://www.tamtam.ai/l/multinational-companies-aragon) (50)
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- [Multinational companies in Region of Murcia](https://www.tamtam.ai/l/multinational-companies-region-of-murcia) (40)
- [Multinational companies in Navarre](https://www.tamtam.ai/l/multinational-companies-navarre) (36)
- [Multinational companies in Canary Islands](https://www.tamtam.ai/l/multinational-companies-canary-islands) (25)
- [Multinational companies in Castile and León](https://www.tamtam.ai/l/multinational-companies-castile-and-leon) (25)
- [Multinational companies in Madrid](https://www.tamtam.ai/l/multinational-companies-madrid) (815)
- [Multinational companies in Barcelona](https://www.tamtam.ai/l/multinational-companies-barcelona) (363)
- [Multinational companies in Valencia](https://www.tamtam.ai/l/multinational-companies-valencia) (59)
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- [Multinational companies in Palma](https://www.tamtam.ai/l/multinational-companies-palma) (52)
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- [Multinational companies in Sant Cugat del Vallès](https://www.tamtam.ai/l/multinational-companies-sant-cugat-del-valles) (27)
- [Multinational companies in Málaga](https://www.tamtam.ai/l/multinational-companies-malaga) (26)

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Source: https://www.tamtam.ai/l/multinational-companies-basque-country