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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 130,572 | ||||
| 2 |
Siemens Gamesasiemensgamesa.com
Global technology leader in renewable energy industry, specializing in wind turbine development, manufacturing, installation, and maintenance Driving energy transition towards sustainability |
19,821 | |||
| 3 |
CAF (Construcciones y Auxiliar de Ferrocarriles)cafmobility.com
Designs and manufactures advanced sustainable transportation systems including accessible rail vehicles and zero-emission urban buses worldwide. |
10,000 | |||
| 4 |
IDOM Consulting, Engineering, Architectureidom.com
A multinational consulting, engineering, and architecture firm offering personalized client services, delivering independent, impartial global projects with a diverse, engaged workforce |
5,424 | |||
| 5 |
Senergroup.sener
Responds to demanding challenges with innovative, efficient solutions, advancing society across aerospace, defense, energy, mobility, data centers, and digital sectors for 70 years. |
4,878 | |||
| 6 |
DOMINION GLOBALdominion-global.com
A sustainable services company offering comprehensive solutions in industry, technology, energy, and infrastructure, focusing on efficiency and environmental friendliness Operating globally |
3,712 | |||
| 7 |
ITP Aeroitpaero.com
A leading aircraft engine and component company developing technology for a sustainable aerospace future, with global facilities and commitment to net zero carbon emissions |
3,345 | |||
| 8 |
Orona Grouporona-group.com
Design manufacture install maintain modernize lifts escalators with innovations in traffic management space optimization comfort safety across Europe. |
2,818 | |||
| 9 |
CIE Automotivecieautomotive.com
An industrial group specializing in supplying automotive components and subassemblies on a global scale, offering various technologies to meet customer needs |
2,561 | |||
| 10 |
Ibermáticaayesa.com
A leading Spanish IT services company offering consulting, infrastructure services, system integration, outsourcing, and ERP solutions across multiple industries |
2,144 | |||
| 11 |
GES - Global Energy Servicesservices-ges.com
Provides comprehensive services for renewable energy projects, including design, construction, installation, and maintenance across various technologies and geographies. |
1,835 | |||
| 12 |
ULMA Constructionulmaconstruction.com
Manufacture and distribution of formwork, shoring, scaffolding systems with technical support for construction, civil engineering, and restoration projects worldwide. |
1,675 | |||
| 13 |
ORONAorona-group.com
A European business group specializing in vertical lifting solutions, offering design, manufacturing, installation, maintenance, and modernization of elevators and escalators |
1,659 | |||
| 14 |
FAES FARMAfaesfarma.com
A Spanish pharmaceutical company with international presence, Faes Farma conducts research, produces, and markets pharmaceutical products and raw materials, exporting globally |
1,519 | |||
| 15 |
Vidralavidrala.com
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 |
1,440 | |||
| 16 |
Artechearteche.com
A leading provider of high-tech solutions and equipment for the electric power industry worldwide, including instrument transformers, relays, protection equipment, and automation systems |
1,422 | |||
| 17 |
Tekneiteknei.com
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 |
1,242 | |||
| 18 |
FAGOR EDERLAN | Global Automotive Componentsfagorederlan.com
A global leader in manufacturing chassis, powertrain, and structural components for the automotive industry with a focus on sustainability and innovation |
1,117 | |||
| 19 |
ULMA Packagingulmapackaging.com
Leading provider of packaging solutions offering personalization, friendly service, and cutting-edge technology to meet customer needs |
1,112 | |||
| 20 |
Saltosaltosystems.com
A global leader in access control technologies, part of a unique brand platform focused on digital transformation through innovative solutions |
1,056 | |||
| 21 |
RDT ENGINEERSrdt.com
Development of advanced technological engineering and IT solutions providing clients competitive advantages with agility, flexibility, and sustainable innovation worldwide. |
985 | |||
| 22 |
PKF Attestpkf-attest.es
A leading professional services firm in Spain, part of PKF International Network, with over 600 professionals and 11 offices across the country |
904 | |||
| 23 |
TAMOINtamoin.com
Specializing in industrial services such as engineering, construction, maintenance, and overhauls for clients in renewable energies, power generation, and oil & gas sectors |
861 | |||
| 24 |
Nervion Industries, Engineering & Services, S.L.nervionindustries.com
Provider of industrial services and engineering solutions since 1953, specializing in installations, maintenance, construction, and complex industrial projects across various sectors |
854 | |||
| 25 |
MAIER Groupmaier.es
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 |
723 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 | 702 | ||||
| 27 |
Sidenor Aceros Especialessidenor.com
A leading European steel producer of special steel long products and cold finished products with production centers and business delegations across Europe |
643 | |||
| 28 |
Grupo Elektragrupoelektra.es
A national leader in distributing electrical and electronic materials, providing solutions in communication networks, industrial automation, energy efficiency, and more |
629 | |||
| 29 |
Ayesa Digitalayesa-dig.com
Designing, integrating, and operating digital platforms for large organizations, enhancing operational models, protecting assets, and creating competitive advantages with technology. |
628 | |||
| 30 | 625 | ||||
| 31 |
GH Cranes & Componentsghcranes.com
Manufacturing hoists, cranes, and components for lifting machinery, GH provides reliable, safe, and durable solutions for industries worldwide |
607 | |||
| 32 |
TUBACEXtubacex.com
A world leader in designing, manufacturing, and installing industrial products and services for the energy and mobility sectors globally |
601 | |||
| 33 |
AgileTVagiletv.com
A leading provider of digital TV/OTT and video delivery solutions, empowering customers to transform digital video content consumption through innovative technology |
539 | |||
| 34 |
BOSLAN Ingeniería y Consultoríaaccenture.com
Specializing in offshore wind energy, renewable energies, green hydrogen, and retail, we offer integrated management systems and a skilled team for comprehensive project solutions |
534 | |||
| 35 |
Fagor Arrasate S. Coop.fagorarrasate.com
A global leader in the design and manufacture of mechanical and hydraulic presses, stamping systems, cutting and processing lines, and metal part forming equipment |
534 | |||
| 36 |
Vaillant Group Spainvaillant-group.com
A leader in heating, ventilation, and air conditioning technology, specializing in high-efficiency products with a focus on sustainability and employee well-being |
500 | |||
| 37 |
Multiverse Computingmultiversecomputing.com
A deep-tech company specializing in Quantum Computing and AI, offering hyper-efficient software for various industries to gain a competitive edge |
497 | |||
| 38 |
Walter Packwalterpack.com
Designs and manufactures functional decorative plastic parts for automotive, home appliances, and consumer electronics, utilizing advanced technologies and bespoke solutions. |
487 | |||
| 39 |
BATZ GROUPbatz.com
Designing, manufacturing composite lightweight structures, active aerodynamic components, mechanical and mechatronic control systems to reduce CO2 emissions for automotive OEMs. |
464 | |||
| 40 | 459 | ||||
| 41 |
Haizea Wind Grouphaizeawindgroup.com
An industrial company based in Spain manufacturing wind towers and offshore foundations, aiming to become a global wind supplier with new global facilities |
443 | |||
| 42 |
Ingeteam Power Technologyingeteam.com
Specializing in power and control electronics, generators, motors, and pumps, the company offers maintenance services and operates globally with a focus on R&D |
420 | |||
| 43 |
Tubos Reunidos Grouptubosreunidosgroup.com
Global leader in premium seamless steel tubular products, specializing in niche segments with tailored solutions for clients worldwide in various industries |
419 | |||
| 44 | 410 | ||||
| 45 | 402 | ||||
| 46 |
DANOBATdanobat.com
A global leader in manufacturing innovative precision grinding machines, lathes, and robotic systems, providing tailored solutions to enhance competitiveness worldwide |
399 | |||
| 47 |
Panda Securitypandasecurity.com
European company specializing in advanced cybersecurity solutions and services, providing EDR systems, management, and monitoring tools to clients worldwide. |
391 | |||
| 48 |
Coprecicopreci.com
Appliance manufacturer with a customer-oriented policy, operating internationally with 9 production centers and serving major appliance groups worldwide |
378 | |||
| 49 |
HINE Grouphinegroup.com
A leading provider of hydraulic systems, components, and cooling solutions for industrial and renewable energy sectors worldwide with over four decades of experience |
378 | |||
| 50 |
CIKAUTXOcikautxo.es
A company belonging to the MONDRAGON Corporation specializing in developing and manufacturing rubber and plastic components for various applications |
363 | |||
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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 464
- Companies with in-house R&D in Basque Country 99
- Manufacturers in Basque Country 87
- Hardware manufacturers in Basque Country 55
- Retail chains in Basque Country 31
- Wellness and Fitness Services companies in Basque Country 30
- Transportation, Logistics, Supply Chain and Storage companies in Basque Country 26
- Industrial Machinery Manufacturing companies in Basque Country 25
- IT services companies in Basque Country 25
The same list elsewhere in Spain
- Multinational companies in Spain 2,706
- Multinational companies in Community of Madrid 1,059
- Multinational companies in Catalonia 680
- Multinational companies in Valencian Community 196
- Multinational companies in Andalusia 176
- Multinational companies in Balearic Islands 77
- Multinational companies in Aragon 50
- Multinational companies in Galicia 41
- Multinational companies in Region of Murcia 40
- Multinational companies in Navarre 36
- Multinational companies in Canary Islands 25
- Multinational companies in Castile and León 25
- Multinational companies in Madrid 815
- Multinational companies in Barcelona 363
- Multinational companies in Valencia 59
- Multinational companies in Alcobendas 54
- Multinational companies in Palma 52
- Multinational companies in Seville 41
- Multinational companies in Zaragoza 39
- Multinational companies in Pozuelo de Alarcón 27
- Multinational companies in Sant Cugat del Vallès 27
- Multinational companies in Málaga 26