| # | Company | Employees |
|---|---|---|
| 1 |
Atentoatento.com
Leading provider of CRM and BPO services in Latin America and globally, serving multinational corporations in various industries through multiple channels |
154,000 |
| 2 |
NTT DATA Europe & Latamnttdata.com
Global IT services provider transforming clients through consulting, solutions, and managed services to enable a confident move into the digital future |
31,932 |
| 3 |
Grupo Tragsatragsa.es
Provides engineering, technical assistance, and execution of projects for public administrations in agriculture, environment, and rural development sectors. |
12,239 |
| 4 |
ILUNIONilunion.com
A group of companies focused on creating a more accessible world, reinventing themselves daily to compete and move forward |
8,198 |
| 5 |
KPMG Españakpmg.com
Professional services firm providing audit, tax, legal, financial, and business advisory with global expertise and local market knowledge. |
5,523 |
| 6 |
everis
This company is no longer active Follow NTT DATA Europe & Latam for updates on their services and solutions |
5,113 |
| 7 |
Servinformservinform.es
Providing customized technology solutions including RPA and AI to optimize resources, reduce time, and increase benefits across multiple industries. |
2,718 |
| 8 |
Entelgyentelgy.com
A global consultancy that accelerates business transformation through innovative technological solutions, helping clients adapt and thrive in a constantly changing world |
1,796 |
| 9 | 1,732 | |
| 10 |
NWorld Advisory, Tech & Operationsn.world
A group of specialized companies offering services in various stages of the value chain: Nfq, Nter, and Nforce |
1,701 |
| 11 |
Nfq Advisory, Solutions, Outsourcingnfq.es
Consulting firm specializing in banking, insurance, capital markets with advisory, software solutions, and outsourcing services for financial institutions. |
1,393 |
| 12 |
Cresa Iberiacresa.com
Real estate consultancy offering comprehensive customer service throughout their transformation process, focusing beyond just the physical space |
1,373 |
| 13 |
TÜV Rheinland Europetuv.com
Ensures quality, safety, and efficiency through testing, certifying products, plants, processes, and management systems, alongside qualifying specialists and training individuals for companies globally. |
1,268 |
| 14 | 1,165 | |
| 15 |
EAG (Empresarios Agrupados - GHESA)empresariosagrupados.es
A leading European engineering group with expertise in complex projects, operating internationally with a large workforce and significant turnover |
1,161 |
| 16 |
JUNGLEwejungle.com
An ecosystem of creative companies specializing in transforming businesses using creativity across strategy, design, advertising, digital production, and more |
1,116 |
| 17 |
Bluetab, an IBM Companybluetab.net
Support organizations in EMEA and America with data readiness, scalable data preparation, and GenAI implementation for data-driven culture. |
1,036 |
| 18 |
Apave Spain (antes Eurocontrol)eurocontrol.apave.com
EUROCONTROL provides a wide range of quality control and engineering services for industrial materials, equipment, and plants, including civil engineering projects |
1,030 |
| 19 |
CHINAllyc.global
It is an advertising agency founded in 2010, focusing on solving client problems rather than just managing accounts for advertisers. |
978 |
| 20 |
The Cocktail
The Cocktail is a consultancy specializing in digital transformation projects, offering strategy development, design, technology, data analysis, and international solutions within WPP group |
864 |
| 21 |
UST España & Latamust.com
Global provider of digital transformation solutions, collaborating with top companies worldwide to drive real impact through technology-driven innovation and agility |
805 |
| 22 |
atmiraatmira.com
A service platform focused on consulting, design, and technology for transformation projects Activated through community hubs, innovation lab, and sustainable practices |
785 |
| 23 |
Savills Españasavills.es
A veteran in the Spanish market with over 30 years of experience and over 150 years internationally, specializing in custom real estate solutions |
750 |
| 24 |
MTP Métodos y Tecnologíamtp.es
Specialized consultancy providing Software Quality Assurance services to improve costs, deadlines, and quality of software products for Telecom, Banking, Insurance, Utilities, and Public Sector |
749 |
| 25 |
KAIROS DIGITAL SOLUTIONSkairosds.com
Provides agile management practices and digital transformation solutions, enabling companies to develop digital products and evolve with customer-focused, lean methodologies. |
709 |
| 26 |
IDEAideatsg.com
Company specializes in engineering, integrating new technologies for industrial digitization, with a focus on BIM methodology and digital twins, working across various sectors nationally and internationally. |
673 |
| 27 |
Consultora Independentefreelancehubs.com
An independent IT consulting company offering a wide range of services, including system analysis, implementation, integration, support, security, project management, governance, and auditing |
648 |
| 28 |
Fujitsu Spainfujitsu.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 |
623 |
| 29 |
ATREVIAatrevia.com
A global communication and strategic positioning organization with over 400 professionals in 15 countries, offering comprehensive solutions in various areas of expertise |
618 |
| 30 |
Optimissaoptimissa.com
Proactive consultation company specializing in bridging business and technology in the capital markets industry, focusing on innovation and customized solutions |
494 |
| 31 |
Grupo inmarkgrupoinmark.com
The company offers consulting, information, and business development services, with a focus on market intelligence, EU project management, and investment in Latin America |
451 |
| 32 |
CE Consulting Empresarialceconsulting.es
CE Consulting Empresarial is a leading network of over 150 national and international consulting firms in Spain, providing fiscal, labor, accounting, legal services, and support for franchisees |
448 |
| 33 |
Experis Españaexperis.es
Global leader in IT professional selection, technology consulting, and talent development, specializing in Business Transformation, Cloud & Infrastructure, and Enterprise Applications |
439 |
| 34 |
PrimeIT Españaprimeit.es
PrimeIT is a leading company providing IT, Telecommunications, and engineering services globally, with a focus on cutting-edge technology and top industry professionals |
409 |
| 35 |
Thales Cybersecurity Services – Spain/Portugalthalesgroup.com
Offers cybersecurity products and services to keep people and assets safe, reinforcing trust and resilience in processes and infrastructures for global organizations. |
317 |
| 36 |
Findasensees.findasense.com
Global Brand Experience company providing consulting, agency, and technology integration services. Focus on creating frictionless consumer journeys, using data science for personalized experiences. |
315 |
| 37 |
BIP Spainbip-group.es
An international consultancy specializing in end-to-end business transformation through growth strategies, digital transformation, and operational efficiency, serving clients in various industries worldwide |
305 |
| 38 |
Keepler Data Techkeepler.io
Full-stack analytics services company specializing in designing, deploying, and operating advanced public cloud analytics solutions for large organizations across various industries |
251 |
| 39 |
Common MScommonms.com
A multinational technology consultancy specializing in innovative solutions tailored to clients in cutting-edge sectors, leading in SAP implementations for industries and healthcare worldwide |
168 |
| 40 |
decide4AIdecidesoluciones.es
Expert team delivers software for better decisions, efficient, sustainable operations. Combines applied AI, machine learning, mathematical optimization with intelligent automation, supported by flexible architecture. |
167 |
| 41 |
Saffron Brand Consultantssaffron-consultants.com
Global consultancy specializing in creating memorable brands through strategy, design, and product expertise for clients worldwide Offices in London, Madrid, Vienna, and Istanbul |
162 |
| 42 |
GlobalSuite Solutionsglobalsuitesolutions.com
Providing solutions for risk management, security, compliance, and auditing through specialized consulting, software, and managed services to diverse sectors. |
135 |
| 43 |
Fullstepfullstep.com
It provides procurement solutions focusing on strategy, technology, and operations to enhance efficiency and collaboration for organizations globally. |
134 |
| 44 |
itegGO Consultingiteggo.com
The company specializes in testing and uses objective data to help customers make informed decisions efficiently, focusing on continuous improvement and cost savings |
81 |
| 45 |
Grupo COMISMARcomismar.es
The group of companies provides comprehensive and independent services as Commissaries, Insurance Adjusters, Appraisers, Inspectors and Consultants in Spain and Portugal |
76 |
| 46 |
SAISsaisolutions.es
Specialized technology consultant focusing on scalability, Big Data, and artificial intelligence Helping with cloud service scalability issues, developing software for large data handling, and implementing AI |
64 |
| 47 |
Anhela ITanhelait.com
ANHELA IT is part of a group of leading companies specializing in cloud, cybersecurity, infrastructure, communications, training, and consultancy services with innovation and excellence |
59 |
| 48 |
Varadero Software Factoryvaradero.es
A software company specialized in design, development, integration, and maintenance of software solutions using latest internet and mobile technologies Partnering with clients to save time and costs |
23 |
| 49 |
VIRTUS ENVIRONMENT SLvirtus-environment.com
Operating as a company specializing in mechanical and industrial engineering, with expertise in providing related services and solutions. |
20 |
| 50 |
Grupo Arrategrupoarrate.com
The Group specializes in renewable energy projects, including solar, wind, and biogas, offering consulting services and constructing photovoltaic plants |
19 |
| 51 |
JRM Consultinglinkedin.com
Specializing in media industry for 25 years, JRM Consulting offers tailored content strategy services for market expansion and content service setup in Latam and Spain |
18 |
| 52 |
Brainy Commercebrainycommerce.com
A marketplace ecommerce consulting firm helping companies leverage opportunities in the evolving consumer-focused commerce landscape to boost sales and expand globally |
16 |
| 53 |
INVENTARIAinventaria.es
Experts in fixed asset management, providing specialized services to optimize resources and ensure the efficient utilization of physical assets |
15 |
| 54 | 14 | |
| 55 |
PHG Hotels & Resorts - Hospitality Consulting --- Consultoria Hoteleraphghr.com
A specialized consulting firm in hotel assets advisory, offering services such as hotel transactions, operator search, feasibility studies, and asset management |
14 |
| 56 |
CES AVIATION, S.L.cesaviation.com
A Madrid-based consulting and engineering company specializes in providing customized solutions and services for aviation businesses worldwide to enhance safety and efficiency |
12 |
| 57 |
Aviatingaviating.es
Specializing in developing tailored technical solutions for defense and commercial aviation, addressing clients' operational and tactical needs with expertise |
5 |
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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 Oct 24, 2026.
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