Company lists · Data refreshed September 2026

Top 18 IT consulting firms based in Madrid, Spain

Name: IT consulting firms based in Madrid, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 691 companies tracked

RevenueBase identified 691 IT consulting firms headquartered in Madrid, Spain as of September 2026 and tracks 48,704 professional contacts across them, including 3,394 with verified work emails. Madrid is the largest hub.

This list covers IT consulting firms headquartered in Madrid, Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

691Companies

48,704Contacts tracked

3,394Verified emails

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The 18 largest IT consulting firms based in Madrid, Spain

Ranked by team size

Top 18 of 691 IT consulting firms based in Madrid, Spain, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	OptimissaIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	1,001-5,000	527
	“Optimissa is a proactive consultation company serving clients in the capital markets industry, bridging the gap between business and technology with a focus on innovation.” Source: company website · checked Sep 4, 2026
2	Experis EspañaPartial evidence	Madrid, SpainHQ checked Sep 4, 2026	1,001-5,000	425
	“Experis es referente global en la selección de profesionales IT, y consultoría tecnológica para la implementación de proyectos y servicios gestionados.” Source: company website · checked Sep 4, 2026
3	AtsistemasStrong evidence	Madrid, SpainHQ checked Sep 4, 2026	1,001-5,000	391
	“With about 2200 experts atSistemas delivers IT consulting, services and software development which to help organizations to be more efficient and profitable.” Source: company website · checked Sep 4, 2026
4	IRIUMIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	501-1,000	363
	“No dejes de perseguir tus sueños.” Source: company website · checked Sep 4, 2026
5	Grupo Tecdata EngineeringIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	347
	“TECDATA, es una dinámica compañía de servicios en Tecnologías de la Información con infraestructura propia en España, ofreciendo servicios profesionales y soluciones tecnológicas…” Source: company website · checked Sep 4, 2026
6	Panel Sistemas InformaticosPartial evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	303
	“Panel Systems is a technology company specialized in software development, software quality assurance, and IT services.” Source: company website · checked Sep 4, 2026
7	ÁlamoconsultingIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	272
	“ÁlamoConsulting es una compañía de consultoría especializada en Tecnologías de la Información (TIC), Estrategia y Gestión del mercado español.” Source: company website · checked Sep 4, 2026
8	Profile Software ServicesIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	236
	“Profile Software Services is a software architecture and development company, made up of more than 140 people, experts in Software Architecture, Web and Mobile Developement, Cloud…” Source: company website · checked Sep 4, 2026
9	Serem Consultoría EmpresarialPartial evidence	Madrid, SpainHQ checked Sep 4, 2026	501-1,000	220
	“Fundada en 1995, SEREM Consultoría Empresarial es una firma de capital íntegramente nacional dedicada a servicios de tecnologías de información (IT).” Source: company website · checked Sep 4, 2026
10	LognextPartial evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	214
	“With more than 17 years of experience and trajectory in the IT world, LOGNEXT offers solutions to our clients and professional careers to our consultants in technology projects…” Source: company website · checked Sep 4, 2026
11	CAS TrainingIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	197
	“CAS constituye una empresa de referencia, especializada en ofrecer soluciones de Formación y servicios de Consultoría y Outsourcing de profesionales en el ámbito de las TIC.” Source: company website · checked Sep 4, 2026
12	MercanzaIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	180
	“En MERCANZA desarrollamos soluciones tecnológicas de gestión empresarial y análisis de Negocio desde 1991, en apoyo de todo tipo de actividades empresariales y en todos los…” Source: company website · checked Sep 4, 2026
13	MindataIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	n/a	175
	“es una ó, ayudamos a nuestros clientes a resolver sus principales retos en el campo de las tecnologías de la información.” Source: company website · checked Sep 4, 2026
14	ArbentiaIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	51-200	171
	“En ARBENTIA somos una consultora especializada en tecnología que impulsa la transformación digital de las empresas.” Source: company website · checked Sep 4, 2026
15	Open SistemasPartial evidence	Madrid, SpainHQ checked Sep 4, 2026	51-200	169
	“OpenSistemas is an international IT solutions provider with a proven track record in working with fast moving organisations looking to achieve quicker, more cost effective results…” Source: company website · checked Sep 4, 2026
16	NetcheckIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	51-200	162
	“Sobre nosotros: Lideramos transformaciones tecnológicas con soluciones innovadoras que mejoran la productividad, eficiencia y calidad, centrando siempre nuestro enfoque en las…” Source: company website · checked Sep 4, 2026
17	Airon GroupIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	201-500	162
	“El Grupo AirON es una compañía de consultoría e innovación, servicios tecnológicos y outsourcing.” Source: company website · checked Sep 4, 2026
18	Alvea Soluciones TecnológicasIndirect evidence	Madrid, SpainHQ checked Sep 4, 2026	51-200	157
	“Alvea, consultora española, especializada en Tecnológicas de la información, ofrece servicios de valor añadido a sus clientes, presente en sector de banca, seguros, industria y…” Source: company website · checked Sep 4, 2026

Showing 18 of 691 IT consulting firms based in Madrid, Spain

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IT consulting firms based in Madrid, Spain at a glance

As of Sep 4, 2026

11-50Median size (employees)

MadridLargest hub · 691 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

291

11-50

217

51-200

113

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole Spain list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 691 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Madrid, Spain whose own description of what they do matches “IT consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT consulting firms, and records with no verified work email. Companies headquartered outside Madrid are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 3,394 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

IT consulting firms by metro in Spain

Frequently asked

How many IT consulting firms are there based in Madrid, Spain?

RevenueBase identified 691 IT consulting firms headquartered in Madrid, Spain as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Optimissa, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most IT consulting firms?

Madrid leads with 691 headquartered companies, followed by Barcelona (366) and Valencia (90).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,394 verified decision-maker contacts tracked across these 691 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.