Company lists · Data refreshed September 2026

Top 24 Transformation consulting firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 4,032 companies tracked

RevenueBase identified 4,032 transformation consulting firms headquartered in Spain as of September 2026 and tracks 69,016 professional contacts across them, including 9,433 with verified work emails and 997 with mobile numbers. Madrid is the largest hub.

This list covers transformation 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

4,032Companies

69,016Contacts tracked

9,433Verified emails

997Mobile numbers

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The 24 largest transformation consulting firms based in Spain

Ranked by team size

Top 24 of 4,032 transformation consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to transformation consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Seidor	Partial evidence	Barcelona, SpainHQ checked Sep 6, 2026	5,001-10,000	6,133 contacts →
	Partial evidence “At SEIDOR we help drive the transformation and competitiveness of our clients through technology and innovation, always focusing on the human value and prioritizing talents and…” Source: RevenueBase Database · checked Sep 6, 2026
2	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 6, 2026	1,001-5,000	4,468 contacts →
	Partial evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 6, 2026
3	VASS	Partial evidence	Alcobendas, SpainHQ checked Sep 6, 2026	1,001-5,000	2,292 contacts →
	Partial evidence “VASS is a global technology company specialized in generating business value through intelligent (digital) transformation, integrating technology, data, artificial intelligence…” Source: RevenueBase Database · checked Sep 6, 2026
4	Knowmad Mood	Indirect evidence	Las Rozas, SpainHQ checked Sep 6, 2026	1,001-5,000	2,027 contacts →
	Indirect evidence “We are knowmad mood!(formerly atSistemas).” Source: RevenueBase Database · checked Sep 6, 2026
5	Entelgy	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	1,001-5,000	1,541 contacts →
	Indirect evidence “Somos Entelgy,#TheBusinessTechConsultancy, un acelerador de la transformación para quienes necesitan seguir siendo competitivos en un mundo cambiante a gran velocidad.” Source: RevenueBase Database · checked Sep 6, 2026
6	Izertis	Indirect evidence	Gijón, SpainHQ checked Sep 6, 2026	1,001-5,000	1,318 contacts →
	Indirect evidence “En Izertis, no solo creemos en la innovación: la vivimos.” Source: RevenueBase Database · checked Sep 6, 2026
7	Teknei	Indirect evidence	Bilbao, SpainHQ checked Sep 6, 2026	1,001-5,000	720 contacts →
	Indirect evidence “Grupo Teknei es una empresa líder en el sector tecnológico, especializada en la consultoría, desarrollo de software y soluciones IT.” Source: RevenueBase Database · checked Sep 6, 2026
8	NAE	Partial evidence	Barcelona, SpainHQ checked Sep 6, 2026	501-1,000	503 contacts →
	Partial evidence “Nae is an international consulting firm specialized in the telecom sector, providing deal & strategy, business, and technology advisory services.” Source: RevenueBase Database · checked Sep 6, 2026
9	Qaracter	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	501-1,000	495 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 6, 2026
10	Grupo Versia	Indirect evidence	Barakaldo, SpainHQ checked Sep 6, 2026	501-1,000	489 contacts →
	Indirect evidence “Grupo Versia es una compañía dedicada a la mejora de procesos de negocio de sus clientes.” Source: RevenueBase Database · checked Sep 6, 2026
11	Atsistemas	Partial evidence	Las Rozas, SpainHQ checked Sep 6, 2026	1,001-5,000	391 contacts →
	Partial evidence “With about 2200 experts atSistemas delivers IT consulting, services and software development which to help organizations to be more efficient and profitable.” Source: RevenueBase Database · checked Sep 6, 2026
12	RAONA	Indirect evidence	Sant Joan Despí, SpainHQ checked Sep 6, 2026	201-500	383 contacts →
	Indirect evidence “Buscas un partner, experto en tecnología, que acompañe los objetivos de desarrollo corporativo, ahora y en el futuro?” Source: RevenueBase Database · checked Sep 6, 2026
13	Integra	Partial evidence	Zaragoza, SpainHQ checked Sep 6, 2026	501-1,000	375 contacts →
	Partial evidence “We are a technology consulting company, formed by different benchmark brands, which creates, through specialization in areas and technological and strategic divisions, an…” Source: RevenueBase Database · checked Sep 6, 2026
14	Opentrends	Indirect evidence	Barcelona, SpainHQ checked Sep 6, 2026	201-500	342 contacts →
	Indirect evidence “Are you Ready?” Source: RevenueBase Database · checked Sep 6, 2026
15	Excelia	Partial evidence	Pozuelo De Alarcón, SpainHQ checked Sep 6, 2026	201-500	317 contacts →
	Partial evidence “We are a global consulting, technology, and professional services firm with over 25 years of experience.” Source: RevenueBase Database · checked Sep 6, 2026
16	Viseo Iberia	Strong evidence	Madrid, SpainHQ checked Sep 6, 2026	1,001-5,000	309 contacts →
	Strong evidence “VISEO is a global digital and business consulting company that assists its clients with their transformation journeys using advanced technology and industry expertise.” Source: RevenueBase Database · checked Sep 6, 2026
17	Panel Sistemas Informaticos	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	201-500	304 contacts →
	Indirect evidence “Panel Systems is a technology company specialized in software development, software quality assurance, and IT services.” Source: RevenueBase Database · checked Sep 6, 2026
18	Erhardt Serikat	Indirect evidence	Bilbao, SpainHQ checked Sep 6, 2026	201-500	294 contacts →
	Indirect evidence “SERIKAT es una compañía de consultoría orientada a la creación de valor en nuestros clientes a través del tratamiento de la información.” Source: RevenueBase Database · checked Sep 6, 2026
19	BIP Spain	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	5,001-10,000	292 contacts →
	Indirect evidence “BIP es una consultora internacional especializada, desde su fundación en 2003, en facilitar la transformación end-to-end de los negocios de sus clientes, donde “hacemos que las…” Source: RevenueBase Database · checked Sep 6, 2026
20	Timestamp España	Partial evidence	Pozuelo De Alarcón, SpainHQ checked Sep 6, 2026	1,001-5,000	284 contacts →
	Partial evidence “Timestamp is a leading IT consultancy with over 20 years’ experience in digital transformation and systems integration.” Source: RevenueBase Database · checked Sep 6, 2026
21	Overlap	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	201-500	280 contacts →
	Indirect evidence “Overlap es una consultoría especializada en la implantación y despliegue de estrategias comerciales y de negocio a través del aprendizaje y el desarrollo de personas.” Source: RevenueBase Database · checked Sep 6, 2026
22	CARSA	Partial evidence	Getxo - Las Arenas, SpainHQ checked Sep 6, 2026	n/a	274 contacts →
	Partial evidence “CARSA has a strong track record as a specialist provider of innovation, technology and internationalisation consulting services to clients around the world.” Source: RevenueBase Database · checked Sep 6, 2026
23	Avos Tech A Prosegur Company	Partial evidence	Madrid, SpainHQ checked Sep 6, 2026	1,001-5,000	272 contacts →
	Partial evidence “We are specialists in guiding our customers through the digital transformation process.” Source: RevenueBase Database · checked Sep 6, 2026
24	Profile Software Services	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	201-500	237 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 6, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: transformation consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names transformation consulting firms.
Partial evidence: Its own public description names part of transformation consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transformation consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 4,032 transformation consulting firms based in Spain

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Transformation consulting firms based in Spain at a glance

As of Sep 6, 2026

13.7%Verified-email coverage

1.4%Mobile-number coverage

17.1Average contacts per company

1-10Median size (employees)

29.5%Largest-city concentration · Madrid

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

2,882

11-50

845

51-200

191

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

8,7850–30

58731–60

461–90

390–180

54180+

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 transformation consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Spain whose own description of what they do matches “transformation consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names transformation consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among transformation 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 its RevenueBase Smart Search 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, 9,433 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 6, 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.

Transformation consulting firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names transformation consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many transformation consulting firms are there based in Spain?

RevenueBase identified 4,032 transformation 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?

Seidor, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most transformation consulting firms?

Madrid leads with 1191 headquartered companies, followed by Barcelona (774) and Valencia (165).

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 9,433 verified decision-maker contacts tracked across these 4,032 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 6, 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 Smart Search, 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.