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Company lists · Data refreshed September 2026

Top 21 IT operations consulting firms based in Spain

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 2,178 companies tracked

RevenueBase identified 2,178 IT operations consulting firms headquartered in Spain as of September 2026 and tracks 91,486 professional contacts across them, including 13,503 with verified work emails and 1,577 with mobile numbers. Madrid is the largest hub.

This list covers IT operations consulting firms headquartered in 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
2,178Companies
91,486Contacts tracked
13,503Verified emails
1,577Mobile numbers
Unlock all 2,178 companies Free signup · no credit card · 500 free credits

The 21 largest IT operations consulting firms based in Spain

Ranked by team size
Top 21 of 2,178 IT operations consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT operations 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.
#CompanyHeadquartersEmployeesContacts
1
Alten SpainIndirect evidence
Madrid, SpainHQ checked Sep 4, 20261,001-5,0001,950

“ALTEN es una multinacional europea especializada en proporcionar servicios de consultoría, tecnologías de la información y servicios de ingeniería a las principales compañías del…”

Source: company website · checked Sep 4, 2026
2
SICEIndirect evidence
Alcobendas, SpainHQ checked Sep 4, 20261,001-5,0001,312

“Sociedad Ibérica de Construcciones Eléctricas (SICE) is a multinational company integrating systems, aimed at solving market needs.”

Source: company website · checked Sep 4, 2026
3
Logicalis SpainIndirect evidence
Barcelona, SpainHQ checked Sep 4, 2026501-1,000544

“Logicalis es una compañía de referencia tanto en España como en los países en los que opera.”

Source: company website · checked Sep 4, 2026
4
OptimissaIndirect evidence
Madrid, SpainHQ checked Sep 4, 20261,001-5,000527

“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
5
NAEPartial evidence
Barcelona, SpainHQ checked Sep 4, 2026501-1,000504

“Nae is an international consulting firm specialized in the telecom sector, providing deal & strategy, business, and technology advisory services.”

Source: company website · checked Sep 4, 2026
6
QaracterIndirect evidence
Madrid, SpainHQ checked Sep 4, 2026501-1,000494

“Qaracter es una firma internacional de consultoría que ofrece servicios de asesoramiento empresarial, financiero, de riesgos, tecnológico y de procesos, basados en el conocimiento…”

Source: company website · checked Sep 4, 2026
7
Grupo VersiaIndirect evidence
Barakaldo, SpainHQ checked Sep 4, 2026501-1,000488

“Grupo Versia es una compañía dedicada a la mejora de procesos de negocio de sus clientes.”

Source: company website · checked Sep 4, 2026
8
SIRTIndirect evidence
Barcelona, SpainHQ checked Sep 4, 2026201-500441

“Experiencia, especialización y calidad de servicio son los tres valores clave en los que SIRT basa su actividad y la relación con sus clientes.”

Source: company website · checked Sep 4, 2026
9
Aubay SpainIndirect evidence
Madrid, SpainHQ checked Sep 4, 20265,001-10,000428

“Aubay es una empresa de consultoría y servicios informáticos fundada en 1998 en Francia.”

Source: company website · checked Sep 4, 2026
10
AtsistemasStrong evidence
Madrid, SpainHQ checked Sep 4, 20261,001-5,000391

“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
11
IntegraPartial evidence
Zaragoza, SpainHQ checked Sep 4, 2026501-1,000375

“We are a technology consulting company, formed by different benchmark brands, which creates, through specialization in areas and technological and strategic divisions, an…”

Source: company website · checked Sep 4, 2026
12
Grupo Tecdata EngineeringIndirect evidence
Madrid, SpainHQ checked Sep 4, 2026201-500347

“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
13
ExceliaPartial evidence
Pozuelo De Alarcón, SpainHQ checked Sep 4, 2026201-500312

“We are a global consulting, technology, and professional services firm with over 25 years of experience.”

Source: company website · checked Sep 4, 2026
14
Viseo IberiaPartial evidence
Madrid, SpainHQ checked Sep 4, 20261,001-5,000312

“VISEO is a global digital and business consulting company that assists its clients with their transformation journeys using advanced technology and industry expertise.”

Source: company website · checked Sep 4, 2026
15
Panel Sistemas InformaticosPartial evidence
Madrid, SpainHQ checked Sep 4, 2026201-500303

“Panel Systems is a technology company specialized in software development, software quality assurance, and IT services.”

Source: company website · checked Sep 4, 2026
16
Erhardt SerikatIndirect evidence
Bilbao, SpainHQ checked Sep 4, 2026201-500294

“SERIKAT es una compañía de consultoría orientada a la creación de valor en nuestros clientes a través del tratamiento de la información.”

Source: company website · checked Sep 4, 2026
17
Timestamp EspañaPartial evidence
Pozuelo De Alarcón, SpainHQ checked Sep 4, 20261,001-5,000283

“Timestamp is a leading IT consultancy with over 20 years’ experience in digital transformation and systems integration.”

Source: company website · checked Sep 4, 2026
18
ÁlamoconsultingIndirect evidence
Madrid, SpainHQ checked Sep 4, 2026201-500272

“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
19
Avos Tech A Prosegur CompanyIndirect evidence
Madrid, SpainHQ checked Sep 4, 20261,001-5,000267

“We are specialists in guiding our customers through the digital transformation process.”

Source: company website · checked Sep 4, 2026
20
Nunegal ConsultingPartial evidence
A Coruna, SpainHQ checked Sep 4, 2026201-500248

“Nunegal Consulting es una empresa especializada en servicios TIC, desarrollo de software y asesoramiento.”

Source: company website · checked Sep 4, 2026
21
NextretIndirect evidence
Barcelona, SpainHQ checked Sep 4, 2026201-500236

“At NexTReT we are specialized in optimizing the ICT area of our clients and we help them acquire a high level of security with specialized solutions and services in…”

Source: company website · checked Sep 4, 2026

Showing 21 of 2,178 IT operations consulting firms based in Spain

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IT operations consulting firms based in Spain at a glance

As of Sep 4, 2026
1-10Median size (employees)
MadridLargest hub · 587 HQs
1,577Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
1,280
11-50
579
51-200
197
201-500
58
501-1,000
29
1,001-5,000
17
5,001-10,000
5
10001+
3

Verified emails by last verification

0–30
0
31–60
986
61–90
7,430
90–180
4,961
180+
126

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 operations 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 Spain whose own description of what they do matches “IT operations 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 operations consulting firms, and records with no verified work email. Companies headquartered outside Spain 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, 13,503 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 operations consulting firms by metro

Frequently asked

How many IT operations consulting firms are there based in Spain?

RevenueBase identified 2,178 IT operations consulting firms headquartered in 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?

Alten Spain, headquartered in Spain, tops this list with the largest team on record.

Which city has the most IT operations consulting firms?

Madrid leads with 587 headquartered companies, followed by Barcelona (303) and Valencia (74).

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 13,503 verified decision-maker contacts tracked across these 2,178 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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Related lists

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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.

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