This selection of Madrid-based companies with a mobile app includes large, established enterprises across a wide range of sectors. Telefónica, a global telecommunications leader, is present alongside El Corte Inglés, a major retail group, and Repsol, a key player in the oil and gas industry. Other notable companies include Amadeus, which is revolutionizing the travel industry, and Correos, a leader in physical and digital communications.
The list highlights Madrid's role as a hub for diverse industries. It features several large employers in utilities such as Endesa, and in retail with Carrefour España. The presence of companies like Nova, a global community connecting top talent, and Cabify, a transportation company focused on urban decongestion, also indicates a mix of traditional sectors and newer technology-driven services.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Telefónicatelefonica.com
Leading global telecommunications company providing advanced infrastructure, innovative digital and data services, focusing on secure, cutting-edge technology and social impact. |
121,569 | |||
| 2 |
El Corte Ingléselcorteingles.es
A world leader in large department stores, Spanish distribution, and diverse business formats with a focus on customer service and adaptation |
37,601 | |||
| 3 |
repsolrepsol.com
A leading player in the oil and gas industry, involved in exploration, production, transformation, development, and marketing of efficient, sustainable energy solutions globally |
26,030 | |||
| 4 |
Comunidad de Madridcomunidad.madrid
provides information and guidelines for public service communication, citizen participation, and respectful interaction on social media platforms |
24,795 | |||
| 5 |
Amadeusamadeus.com
A company revolutionizing the travel industry by inspiring innovation, partnerships, and responsibility, connecting the travel ecosystem and promoting social and environmental good |
23,625 | |||
| 6 |
Correoscorreos.es
The company is a leader in physical, digital, and parcel communications, offering quality services in the ecommerce value chain, reaching millions of homes and businesses annually |
13,939 | |||
| 7 |
Carrefour Españacarrefour.es
A company dedicated to leading the food transition towards healthier, sustainable products at affordable prices, with a focus on employee development and social responsibility |
10,886 | |||
| 8 |
Sanitascorporativo.sanitas.es
The company is dedicated to promoting healthier and happier lives through an integrated healthcare model, including insurance, hospitals, rehabilitation centers, and dental clinics |
10,198 | |||
| 9 |
Minor Hotels Europe and Americascareer2.successfactors.eu
Operating international hotels and resorts across eight brands alongside luxury residences, private jets, restaurants, wellness spas, river cruises and premium rail journeys. |
10,009 | |||
| 10 |
Endesaendesa.com
Leaders in electricity and natural gas sector. Providing services to millions of clients. Core business is production, transportation, distribution and commercialization of electric power. |
9,800 | |||
| 11 |
Novanovatalent.com
Global community connecting top talent with opportunities, offering rigorous screening for high-potential individuals, B2B services for top clients, and launching B2C premium services |
6,899 | |||
| 12 |
Bankinterbankinter.com
A leading Spanish online banking brand focused on quality customer service and innovation, offering a wide range of financial products and services |
6,427 | |||
| 13 | 5,374 | ||||
| 14 |
Cabifycabify.com
Transportation company focused on decongesting cities by providing safe, quality transport options through technology while offsetting 100% of CO2 emissions |
4,583 | |||
| 15 |
italkiitalki.com
A global language learning marketplace connecting students and teachers worldwide for online language lessons, aiming to help people become fluent in foreign languages |
4,322 | |||
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. | |||||
| 16 |
HM Hospitaleshmhospitales.com
Private healthcare group with 54 centers offering specialized hospitals, clinics, and integrated care focused on quality, innovation, and patient wellbeing. |
3,803 | |||
| 17 |
CAJAMARgrupocooperativocajamar.es
Leading Spanish credit cooperative with over 14 million members, 39 million clients, 1,200+ branches, and 5,000 employees, part of Spain's largest cooperative credit group |
3,457 | |||
| 18 | 3,263 | ||||
| 19 |
BBVA en Españabbva.es
A multinational financial group offering services to 53 million clients in over 30 countries, prioritizing a better future for people through education and social entrepreneurship |
2,963 | |||
| 20 |
Dia Españaempleo.dia.es
Leading proximity stores network with over 5,400 locations in Spain, Argentina, Brazil, and Portugal Committed to quality, community impact, and customer satisfaction |
2,438 | |||
| 21 |
Agencia Estatal de la Administración Tributariagob.es
The company is a website that provides tax agency services, facilitating individuals and businesses with tax-related information and transactions |
2,437 | |||
| 22 |
Santander Españabancosantander.es
Providing innovative banking products and solutions, building lasting customer relationships, supporting personal and business project development with expertise and resources. |
2,386 | |||
| 23 |
Mutua Madrileñamutua.es
A leading insurance company with over 169 million clients, ranking first in various insurance categories and expanding internationally Also active in asset management and real estate |
2,302 | |||
| 24 |
SegurCaixa Adeslassegurcaixaadeslas.es
A leading Spanish non-life insurance company specializing in health insurance and other sectors Known for its extensive network of medical facilities and high-quality service |
2,229 | |||
| 25 |
Casa del Librom-sml.mtrbio.com
A leading bookstore chain with over 36 locations in Spain, offering a rich selection of over 500,000 titles and expanding into digital reading with e-readers and tablets |
2,044 | |||
| 26 |
Allianz Españaallianz.es
Providing life and non-life insurance products, investment solutions, and client services through agents, brokers, and banking networks in Spain. |
1,952 | |||
| 27 |
Adeslassegurcaixaadeslas.es
A leading brand in health insurance, offering a wide healthcare network with over 1,300 medical centers and 216 private hospitals in Spain |
1,892 | |||
| 28 |
ING España&Portugaling.es
ING Spain & Portugal is a digital bank focusing on simplicity, transparency, innovation, and sustainability to make banking easier for 4 million customers |
1,509 | |||
| 29 |
Canal de Isabel IIcanaldeisabelsegunda.es
A public company in Madrid managing the water cycle, ensuring supply and quality, while contributing to environmental protection and using advanced technology |
1,475 | |||
| 30 |
Openbankopenbank.us
Online bank offering complete, convenient, and fast banking services through phone and internet Accessible anytime via smartphone or tablet, with free debit card and access to Santander ATMs |
1,422 | |||
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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 Madrid
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- Multinational companies in Madrid 815
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- Financial services firms in Madrid 231
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- Business Consulting and Services companies in Madrid 80
- Marketing and communications agencies in Madrid 79