1.Repsol
Repsol is a global leader in the energy sector, with operations in over 30 countries and a presence in more than 90 markets. The company is involved in all aspects of oil and gas, including exploration, production, refining, and distribution. In recent years, Repsol has shifted its focus towards renewable energy, aligning with the global push for cleaner energy. The company made a significant move in 2015 by acquiring Talisman Energy, a Canadian oil company, for $13 billion. In 2023, Repsol generated $75.79 billion in revenue, continuing its strong position in both traditional and renewable energy sectors.
2.Santander
Santander is one of the world’s largest banking institutions, with a strong presence in Europe, Latin America, and the U.S. The bank offers a wide range of financial services, including retail banking, corporate banking, and asset management. Santander has been expanding its digital banking capabilities to meet the growing demand for online financial services. The company’s global strategy focuses on efficiency and innovation while continuing to strengthen its market position in key regions. In 2023, Santander reported revenues of $67.54 billion.
3.Iberdrola
Iberdrola is a multinational electric utility company, primarily involved in the generation, distribution, and commercialization of electricity. With a major focus on renewable energy, Iberdrola is one of the world’s leading companies in the wind energy sector. The company has been heavily investing in clean energy, with wind, solar, and hydropower making up a significant portion of its energy production. Iberdrola is also expanding its reach globally, with major operations in the U.K., U.S., and Brazil. In 2023, Iberdrola’s revenue reached $59.07 billion.
4.Grupo ACS
Grupo ACS is a global construction and services company, with operations in infrastructure, energy, and industrial services. The company is involved in large-scale projects, including civil engineering, power generation, and telecommunications. Grupo ACS has a robust presence in global markets, with major infrastructure projects in Europe, the U.S., and Latin America. Its diversified portfolio allows it to remain resilient in the face of global economic shifts. In 2023, Grupo ACS reported revenues of $56.21 billion.
5.Telefónica
Telefónica is one of the world’s leading telecommunications companies, offering mobile, broadband, and digital services across Europe and Latin America. The company has a significant presence in Spain, the U.K., Brazil, and Germany. Telefónica is focusing on expanding its digital services and improving its 5G infrastructure to stay competitive in the rapidly changing telecom market. The company has also been reducing its debt and increasing its focus on high-growth markets. In 2023, Telefónica's revenue was $44.47 billion.
6.Inditex
Inditex is the world’s largest fast-fashion retailer, with its flagship brand Zara leading the charge. The company operates more than 7,000 stores across over 90 countries, and its business model is known for its rapid turnaround time from design to production. Inditex is committed to sustainability and is focusing on eco-friendly fabrics and reducing its carbon footprint. The company continues to expand its online presence and drive growth through its diverse portfolio of fashion brands. In 2023, Inditex reported revenues of $41.27 billion.
7.Banco Bilbao Vizcaya Argentaria (BBVA)
BBVA is a multinational financial services group with a strong presence in Europe, Latin America, and the U.S. The bank offers a range of services, including retail banking, corporate banking, and wealth management. BBVA has been at the forefront of digital banking innovation, with a focus on enhancing customer experience through technology. The company’s strategy includes expanding its digital transformation and driving growth in emerging markets. BBVA’s revenue for 2023 stood at $39.18 billion.
8.International Consolidated Airlines Group (IAG)
International Consolidated Airlines Group (IAG) is one of the world’s largest airline groups, with major brands such as British Airways, Iberia, and Aer Lingus under its umbrella. IAG operates flights to destinations across the globe, and it is a key player in the European aviation market. The company focuses on increasing operational efficiency, reducing costs, and improving customer service to maintain its competitive edge in the aviation industry. In 2023, IAG’s revenue reached $34.62 billion.
9.Endesa
Endesa is one of Spain's largest electric utilities, providing electricity and natural gas to millions of customers across Spain and Italy. The company is a subsidiary of the Italian energy giant Enel, and it focuses heavily on renewable energy, particularly wind and solar power. Endesa has made significant investments in green energy projects as part of its strategy to lead the energy transition. In 2023, Endesa’s revenue was $23.68 billion.
10.Mapfre
Mapfre is a leading multinational insurance company, offering a broad range of insurance products including life, health, car, and home insurance. The company operates in over 40 countries, with a strong presence in Spain and Latin America. Mapfre is focused on expanding its digital capabilities and increasing its customer base through new, innovative products. In 2023, Mapfre reported revenues of $22.68 billion.
11.Naturgy
Naturgy is a global energy company involved in the production, distribution, and marketing of natural gas and electricity. The company is transitioning to cleaner energy by investing in renewable projects and increasing its focus on green energy solutions. Naturgy operates across multiple countries, including Spain, Italy, and Latin America, and is committed to achieving net-zero emissions by 2050. In 2023, Naturgy's revenue was $18.55 billion.
12.CaixaBank
CaixaBank is one of Spain’s largest financial institutions, providing a wide range of banking services including retail banking, corporate banking, and asset management. The bank has a strong digital presence and continues to focus on enhancing its technology-driven services to meet customer demand. CaixaBank’s merger with Bankia in 2021 created Spain’s largest domestic bank, solidifying its position in the Spanish financial market. In 2023, CaixaBank reported revenues of $17.99 billion.
13.Logista (Compañía de Distribución Integral Logista)
Logista is a leading logistics and distribution company operating across Europe, primarily focused on the tobacco, pharmaceutical, and convenience product sectors. The company provides integrated services including transportation, storage, and distribution, making it a key player in the supply chain. Logista continues to expand its portfolio with advanced logistics solutions aimed at increasing efficiency and sustainability. In 2023, Logista reported revenues of $14.13 billion.
14.Gestamp Automoción
Gestamp Automoción is a global leader in the design, development, and manufacturing of automotive components. The company supplies parts to major car manufacturers worldwide and specializes in metal components for vehicles, including body-in-white, chassis, and suspension systems. Gestamp has a strong focus on innovation, sustainability, and improving production processes, ensuring it remains competitive in the ever-evolving automotive industry. In 2023, Gestamp Automoción's revenue reached $12.91 billion.
15.Ferrovial
Ferrovial is an international infrastructure and services company, with a focus on construction, transportation, and environmental services. The company is involved in large-scale infrastructure projects such as highways, airports, and railways. Ferrovial also has a growing portfolio in the renewable energy sector, aiming to contribute to the global transition towards cleaner energy. With a strong presence in Europe and North America, Ferrovial’s global reach continues to grow. In 2023, Ferrovial reported revenues of $9.53 billion.
16.Grifols
Grifols is a global healthcare company specializing in the production of plasma-derived medicines. With a focus on treating rare and chronic diseases, Grifols has become a leader in the biopharmaceutical industry. The company operates in over 30 countries and has made significant investments in research and development to advance its medical treatments. Grifols is also exploring digital healthcare solutions and expanding its presence in emerging markets. In 2023, Grifols’ revenue stood at $7.96 billion.
17.Aena
Aena is Spain's largest airport operator, managing 46 airports across the country, including major international hubs such as Madrid-Barajas and Barcelona-El Prat. The company is involved in airport management, aviation services, and infrastructure development. Aena has been focused on improving airport efficiency, customer experience, and sustainability. The company continues to expand its international footprint by managing airports in other countries. In 2023, Aena’s revenue was $7.93 billion.
18.(DIA) Distribuidora Internacional de Alimentación
DIA is an international food retailer with a significant presence in Spain, Brazil, and Argentina. The company operates discount supermarkets and offers a wide range of food and household products. DIA is focused on expanding its footprint in emerging markets and is working on digital transformation to enhance the shopping experience for customers. Despite challenges in the retail sector, DIA remains a major player in the supermarket industry. In 2023, DIA’s revenue reached $7.82 billion.
19.Acciona
Acciona is a global leader in sustainable infrastructure and renewable energy, with operations in construction, water, energy, and transport. The company’s renewable energy portfolio includes wind, solar, and hydroelectric power projects. Acciona has been at the forefront of promoting sustainable development and reducing environmental impact through its projects. The company is also focused on expanding its international presence, especially in markets with strong demand for renewable energy solutions. In 2023, Acciona reported revenues of $7.80 billion.
20.Fomento de Construcciones y Contratas (FCC)
FCC is a multinational infrastructure and services company that specializes in construction, water management, and waste treatment. The company operates across several continents, handling major projects in the public and private sectors. FCC is committed to sustainability and innovation in its services, with a strong emphasis on reducing its environmental footprint. The company has been involved in numerous high-profile infrastructure projects worldwide. In 2023, FCC's revenue stood at $7.74 billion.
21.Acerinox
Acerinox is a leading global manufacturer of stainless steel products, serving a variety of industries including automotive, construction, and food processing. The company operates several plants worldwide and is committed to maintaining high-quality production standards and reducing environmental impact. Acerinox continues to focus on technological advancements and sustainability initiatives to stay ahead in the competitive steel market. In 2023, Acerinox's revenue was $7.19 billion.
22.Banco Sabadell
Banco Sabadell is one of Spain’s largest financial institutions, providing a range of banking services, including retail banking, corporate banking, and asset management. The bank has a significant presence in Spain and is expanding its footprint internationally, particularly in the U.K. and Latin America. Banco Sabadell continues to invest in digital banking solutions, aiming to enhance customer experience and streamline services. In 2023, Banco Sabadell's revenue was $6.90 billion.
23.Amadeus IT Group
Amadeus IT Group is a leading technology provider to the global travel and tourism industry. The company specializes in software solutions and services for airlines, travel agencies, hotels, and other travel-related businesses. Amadeus has been a key player in transforming the travel sector with its innovative technology, offering services such as flight booking systems, inventory management, and travel analytics. In 2023, Amadeus IT Group reported revenues of $6.61 billion.
24.Indra Sistemas
Indra Sistemas is a multinational company specializing in technology and consulting, with a focus on the aerospace, defense, energy, and transport sectors. The company provides advanced solutions in areas such as artificial intelligence, cybersecurity, and smart cities. Indra is involved in both public and private sector projects, delivering digital transformation and innovative solutions. In 2023, Indra Sistemas’ revenue reached $6.34 billion.
25.Sacyr
Sacyr is an international infrastructure and construction company, known for its involvement in large-scale projects such as highways, airports, and railways. The company operates in multiple regions, including Europe, Latin America, and the Middle East. Sacyr also has a strong presence in the energy sector, focusing on renewable energy and sustainable projects. The company’s commitment to innovation and sustainability continues to drive its global expansion. In 2023, Sacyr’s revenue was $6.15 billion.
26.Construcciones y Auxiliar de Ferrocarriles (CAF)
Construcciones y Auxiliar de Ferrocarriles (CAF) is a leading global manufacturer of railway rolling stock and rail transport systems. The company designs and manufactures trains, metros, and trams, and is involved in railway infrastructure projects. CAF operates in more than 40 countries, providing sustainable and innovative solutions for public transportation. The company’s continued focus on technological advancements and eco-friendly solutions positions it well in the growing global rail transport sector. In 2023, CAF's revenue reached $6.06 billion.
27.Cellnex Telecom
Cellnex Telecom is a major telecommunications infrastructure company, operating in several European countries. It provides services such as mobile and broadband tower operations, broadcasting, and wireless infrastructure. Cellnex is expanding rapidly, acquiring new assets to strengthen its network and provide high-quality infrastructure services to telecom operators. The company is committed to sustainability and reducing its carbon footprint. In 2023, Cellnex Telecom reported revenues of $5.40 billion.
28.Prosegur
Prosegur is a global leader in security services, offering solutions ranging from cash management to alarm monitoring and cybersecurity. The company provides its services to a variety of sectors including retail, banking, and government. Prosegur is expanding its digital capabilities and enhancing its security solutions with advanced technologies such as artificial intelligence and robotics. The company operates across more than 20 countries and is committed to providing safe and secure environments for its clients. In 2023, Prosegur’s revenue was $5.28 billion.
29.Puig Brands
Puig Brands is a global fashion and fragrance company known for its luxury brands, including Paco Rabanne, Jean Paul Gaultier, and Carolina Herrera. Puig focuses on creativity and innovation in the fragrance and fashion sectors, creating iconic products that have shaped the luxury market. The company has also been increasing its presence in beauty and skincare, positioning itself as a major player in the global luxury goods industry. In 2023, Puig Brands’ revenue reached $4.98 billion.
30. Obrascón Huarte Lain (OHLA)
Obrascón Huarte Lain (OHLA) is a multinational construction and engineering company with a strong focus on infrastructure projects such as highways, bridges, and public buildings. The company operates globally, with a presence in Europe, the Americas, and the Middle East. OHLA is committed to delivering large-scale construction projects that are sustainable, efficient, and technologically advanced. In 2023, OHLA’s revenue was $4.89 billion.
31.Técnicas Reunidas
Técnicas Reunidas is a prominent Spanish engineering and construction company specializing in oil, gas, and petrochemical projects. It designs and manages complex industrial facilities around the world, especially in the Middle East and Latin America. The company is also actively transitioning toward cleaner technologies and renewable energy projects, aligning its strategy with the global energy shift. In 2023, Técnicas Reunidas recorded revenues of $4.79 billion.
32.CIE Automotive
CIE Automotive is an industrial group that supplies components and subassemblies to the global automotive sector. Operating in over 15 countries, the company focuses on sustainable manufacturing using metal, plastic, aluminum, and forging technologies. CIE Automotive continues to invest in innovation and operational efficiency, helping it maintain strong relationships with major global car manufacturers. In 2023, its revenue was $4.12 billion.
33.EDP Renováveis
EDP Renováveis is one of the world's largest renewable energy companies, with a portfolio focused on wind and solar power. Although headquartered in Spain, it operates across North America, Europe, and South America. The company plays a key role in the global transition to green energy, consistently expanding its renewable energy assets. In 2023, EDP Renováveis reported revenue of $3.76 billion.
34.Audax Renovables
Audax Renovables is an integrated energy group dedicated to the generation and commercialization of 100% renewable electricity. It serves both residential and industrial clients, primarily in Spain and other European countries. The company has been rapidly increasing its installed capacity through solar projects and remains committed to sustainability and energy independence. In 2023, Audax Renovables achieved revenue of $3.66 billion.
35.Bankinter
Bankinter is a major Spanish bank that offers retail, corporate, and private banking services. Known for its solid financial performance and technological innovation, Bankinter has been a standout in the banking sector for customer satisfaction and digital transformation. It also has operations in Portugal and Ireland, adding to its international footprint. In 2023, Bankinter’s revenue reached $3.28 billion.
