# The 26 largest managed service providers in Madrid
Tamtam tracks 26 managed service providers headquartered in Madrid. This list ranks all of them by number of employees on LinkedIn, led by NTT DATA Europe & Latam, Telef贸nica Tech and Entelgy. Their median headcount is 356. Half of them were founded in 1992 or later.
These companies are managed service providers based in Madrid, predominantly operating in IT services and consulting, with some significant telecommunications firms. The group includes large global players and established mid-sized firms. NTT DATA Europe & Latam offers global IT services, Telef贸nica Tech accelerates tech adoption, Entelgy provides business transformation solutions, and Zelenza delivers integrated ICT services.
The data shows a strong concentration of headquarters in Madrid, indicating the city's role as a central hub for technology and telecommunications services in Spain. The companies span a range of founding dates, from established firms like Cibernos (founded 1966) and Sermicro (founded 1985) to more recent entries such as Telxius (founded 2016).
馃嚜馃嚫 Madrid 路 26 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [NTT DATA Europe & Latam](https://www.tamtam.ai/c/ntt-data-europe-and-latam) (nttdata.com)
Global IT services provider transforming clients through consulting, solutions, and managed services to enable a confident move into the digital future | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 31,932 | |
| 2 | [Telef贸nica Tech](https://www.tamtam.ai/c/telefonica-tech) (telefonicatech.com)
Accelerating tech adoption through services in Cyber Security, Cloud, IoT, Big Data, AI, and Blockchain, with a strong presence on social media platforms | Telecommunications | 馃嚜馃嚫 Madrid | 4,392 | |
| 3 | [Entelgy](https://www.tamtam.ai/c/entelgy) (entelgy.com)
A global consultancy that accelerates business transformation through innovative technological solutions, helping clients adapt and thrive in a constantly changing world | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 1,796 | |
| 4 | [UFINET](https://www.tamtam.ai/c/ufinet) (ufinet.com)
A Latin American carrier of carriers providing high-quality telecom solutions with a carrier-grade network, customer-oriented services, and a wide service portfolio | Telecommunications | 馃嚜馃嚫 Madrid | 1,394 | 1998 |
| 5 | [Zelenza](https://www.tamtam.ai/c/zelenza) (zelenza.com)
Company offers integrated ICT services, Telco network engineering, defense and security solutions, and customer experience. It helps businesses face digital challenges. | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 1,332 | 1984 |
| 6 | [Econocom Espa帽a](https://www.tamtam.ai/c/econocom-espana) (econocom.es)
Econocom provides digital transformation solutions for large companies and public organizations, with financing, equipment distribution, and digital services expertise Operating in 16 countries with over 8,750 employees | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 1,305 | |
| 7 | [Sermicro](https://www.tamtam.ai/c/sermicro) (gruposermicro.com)
ICT solutions and services integrator of reference with 35+ years of experience, offering innovative technology solutions for businesses worldwide Providing opportunities for professional growth | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 1,239 | 1985 |
| 8 | [Evolutio Empowering the cloud](https://www.tamtam.ai/c/evolutio-empowering-the-cloud) (evolutio.com)
Spanish technology expert specializing in cloud computing, cybersecurity, digital experience, and telecommunications for corporate and public entities With over 30 years of experience | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 928 | 1989 |
| 9 | [Fujitsu Spain](https://www.tamtam.ai/c/fujitsu-spain) (fujitsu.com)
With over 40 years in the Spanish market, the organization provides tailored technology solutions to various sectors, offering expertise in areas such as healthcare, banking, and justice | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 623 | |
| 10 | [Cibernos](https://www.tamtam.ai/c/cibernos) (grupocibernos.com)
A Spanish IT consulting and services company with nearly 1,000 employees in Spain and Latin America, offering integrated solutions tailored to clients' needs | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 580 | 1966 |
| 11 | [IRIUM](https://www.tamtam.ai/c/irium) (irium.es)
Global IT services group with a team of 500 passionate professionals dedicated to providing personalized solutions for clients, seeking dreamers who enjoy their work | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 420 | 2002 |
| 12 | [Axians Spain](https://www.tamtam.ai/c/axians-spain) (axians.es)
Specializing in IT and communications technologies, offering comprehensive solutions such as voice, data, and image communications, along with services like consultancy, integration, and support | Telecommunications | 馃嚜馃嚫 Madrid | 410 | |
| 13 | [Telef贸nica Soluciones Outsourcing](https://www.tamtam.ai/c/telefonica-soluciones-outsourcing)
A technology outsourcing company in Spain offering infrastructure management, ICT services, network management, and post-sales support, prioritizing flexibility, stability, and customer satisfaction | Computer Networking Products | 馃嚜馃嚫 Madrid | 356 | |
| 14 | [COMPUSOF S.A.](https://www.tamtam.ai/c/compusof-s-a) (compusof.com)
A leading company in IT and communications, with 40 years of experience, offering innovative solutions and cost savings to multinational clients Operating in Spain, Mexico, Portugal, and Latin America | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 336 | 1982 |
| 15 | [Telxius](https://www.tamtam.ai/c/telxius) (telxius.com)
The company provides ultra-high capacity, low latency global connectivity solutions through subsea and terrestrial networks, with colocation and security services | Telecommunications | 馃嚜馃嚫 Madrid | 316 | 2016 |
| 16 | [Diggia Group](https://www.tamtam.ai/c/diggia-group) (diggia.com)
Dedicated to promoting a transition to clean and renewable energies, offering innovative solutions for a sustainable economy and reducing greenhouse gas emissions | Energy Technology | 馃嚜馃嚫 Madrid | 294 | |
| 17 | [fibratel](https://www.tamtam.ai/c/fibratel) (fibratel.com)
With over 30 years of experience, the company focuses on digitalization, IT security, networking solutions, and 360潞 managed services to protect businesses from cyber threats | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 262 | 1992 |
| 18 | [SoftwareOne Spain](https://www.tamtam.ai/c/softwareone-spain) (softwareone.com)
Global technology provider offering Software & MultiCloud solutions to help businesses with digital transformation, infrastructure evolution, application modernization, and software asset management | Software Development | 馃嚜馃嚫 Madrid | 183 | |
| 19 | [Sabio Espa帽a](https://www.tamtam.ai/c/sabio-espana) (sabiogroup.com)
Sabio ensures excellent customer experience by providing knowledge and solutions for companies to meet evolving customer needs through analysis and technology partnerships | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 182 | |
| 20 | [CIVIR](https://www.tamtam.ai/c/civir) (civir.es)
We support clients in finding tailored technological solutions with a focus on Cloud solutions | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 152 | |
| 21 | [JOTELULU Espa帽a](https://www.tamtam.ai/c/jotelulu-espana) (jotelulu.com)
Online cloud platform enabling traditional IT Companies to become Cloud Service Providers by offering IT products, communication solutions, and system administration tools for small businesses | Software Development | 馃嚜馃嚫 Madrid | 116 | 2020 |
| 22 | [Borak](https://www.tamtam.ai/c/borak) (borak.es)
A Spanish company founded in 1989 specializing in advanced telecommunications services, system integration, application development, and training to optimize business management | Software Development | 馃嚜馃嚫 Madrid | 84 | 1989 |
| 23 | [Keycoes Comunicaciones](https://www.tamtam.ai/c/keycoes-comunicaciones) (keycoes.es)
An experienced technology provider offering IT infrastructure maintenance, logistics consulting, mobile and landline telephony, cloud storage, security, and customized solutions for businesses | Telecommunications | 馃嚜馃嚫 Madrid | 75 | 2004 |
| 24 | [Datos101](https://www.tamtam.ai/c/datos101) (datos101.com)
A data business continuity company offering services such as backups, disaster recovery plans, data storage, cybersecurity solutions, and compliance with data regulations | Software Development | 馃嚜馃嚫 Madrid | 21 | 2016 |
| 25 | [Nware](https://www.tamtam.ai/c/nware) (playnware.com)
Revolutionizing the gaming industry with a cloud gaming platform that allows gamers to play any PC game on any device without installation democratizing access to video games worldwide | Entertainment Providers | 馃嚜馃嚫 Madrid | 8 | 2017 |
| 26 | [Econocom Servicios Espa帽a](https://www.tamtam.ai/c/econocom-servicios-espana) (econocom.es)
A leading digital integrator in Europe offering services and financing for digital transformation, including IT solutions, cloud services, and managed security services | IT Services and IT Consulting | 馃嚜馃嚫 Madrid | 1 | 1982 |
## 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
- [The largest companies in Madrid](https://www.tamtam.ai/l/largest-companies-madrid) (2,650)
- [Multinational companies in Madrid](https://www.tamtam.ai/l/multinational-companies-madrid) (815)
- [Retail chains in Madrid](https://www.tamtam.ai/l/retail-chains-madrid) (259)
- [Financial services firms in Madrid](https://www.tamtam.ai/l/financial-services-firms-madrid) (231)
- [Professional services firms in Madrid](https://www.tamtam.ai/l/professional-services-firms-madrid) (227)
- [Wellness and Fitness Services companies in Madrid](https://www.tamtam.ai/l/wellness-and-fitness-services-companies-madrid) (202)
- [Critical infrastructure operators in Madrid](https://www.tamtam.ai/l/critical-infrastructure-operators-madrid) (169)
- [Healthcare providers in Madrid](https://www.tamtam.ai/l/healthcare-providers-madrid) (161)
- [Companies with in-house R&D in Madrid](https://www.tamtam.ai/l/r-and-d-companies-madrid) (158)
- [Companies with a mobile app in Madrid](https://www.tamtam.ai/l/companies-with-mobile-app-madrid) (158)
- [Consulting firms in Madrid](https://www.tamtam.ai/l/consulting-firms-madrid) (157)
- [IT services companies in Madrid](https://www.tamtam.ai/l/it-services-companies-madrid) (155)
- [Education providers in Madrid](https://www.tamtam.ai/l/education-companies-madrid) (141)
- [IT Services and IT Consulting companies in Madrid](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-madrid) (138)
- [Software Development companies in Madrid](https://www.tamtam.ai/l/software-development-companies-madrid) (129)
- [Financial Services companies in Madrid](https://www.tamtam.ai/l/financial-services-companies-madrid) (125)
- [Insurance companies in Madrid](https://www.tamtam.ai/l/insurance-companies-madrid) (122)
- [SaaS companies in Madrid](https://www.tamtam.ai/l/saas-companies-madrid) (113)
- [Hotel and hospitality groups in Madrid](https://www.tamtam.ai/l/hospitality-groups-madrid) (104)
- [Manufacturers in Madrid](https://www.tamtam.ai/l/manufacturers-madrid) (91)
- [Public sector organisations in Madrid](https://www.tamtam.ai/l/public-sector-organisations-madrid) (90)
- [Retail Apparel and Fashion companies in Madrid](https://www.tamtam.ai/l/retail-apparel-and-fashion-companies-madrid) (89)
- [Corporate groups and holding companies in Madrid](https://www.tamtam.ai/l/holding-companies-madrid) (89)
- [Business Consulting and Services companies in Madrid](https://www.tamtam.ai/l/business-consulting-and-services-companies-madrid) (80)
## The same list elsewhere in Spain
- [Managed service providers in Spain](https://www.tamtam.ai/l/managed-service-providers-spain) (73)
- [Managed service providers in Community of Madrid](https://www.tamtam.ai/l/managed-service-providers-community-of-madrid) (35)
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Source: https://www.tamtam.ai/l/managed-service-providers-madrid