Company lists · Data refreshed September 2026

Top 25 B2B consultancies based in Spain

Name: B2B consultancies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 6,349 companies tracked

RevenueBase identified 6,349 B2B consultancies headquartered in Spain as of September 2026 and tracks 51,547 professional contacts across them, including 5,774 with verified work emails and 888 with mobile numbers. Madrid is the largest hub.

This list covers B2B consultancies 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 23, 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 23, 2026 86% judged on-target in blind review

6,349Companies

51,547Contacts tracked

5,774Verified emails

888Mobile numbers

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The 25 largest B2B consultancies based in Spain

Ranked by team size

Top 25 of 6,349 B2B consultancies based in Spain, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to B2B consultancies: 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	Management Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	1,001-5,000	4,468 contacts →
	Indirect evidence “Management Solutions is a leading provider of business consulting services for regulated industries.” Source: RevenueBase Database · checked Sep 23, 2026
2	NAE	Indirect evidence	Barcelona, SpainHQ checked Sep 23, 2026	501-1,000	503 contacts →
	Indirect 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 23, 2026
3	Qaracter	Indirect evidence	Madrid, SpainHQ checked Sep 23, 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 23, 2026
4	Grupo Versia	Indirect evidence	Barakaldo, SpainHQ checked Sep 23, 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 23, 2026
5	SIRT	Indirect evidence	Barcelona, SpainHQ checked Sep 23, 2026	201-500	449 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026
6	Atsistemas	Indirect evidence	Las Rozas, SpainHQ checked Sep 23, 2026	1,001-5,000	391 contacts →
	Indirect 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 23, 2026
7	CE Consulting Empresarial	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	501-1,000	345 contacts →
	Indirect evidence “CE Consulting Empresarial es la mayor red en volumen de asesorías y líder en España: Somos más de 150 asesorías nacionales e internacionales, que ofrecen servicios de asesoría…” Source: RevenueBase Database · checked Sep 23, 2026
8	Viseo Iberia	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	1,001-5,000	309 contacts →
	Indirect 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 23, 2026
9	Erhardt Serikat	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 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 23, 2026
10	BIP Spain	Indirect evidence	Madrid, SpainHQ checked Sep 23, 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 23, 2026
11	Overlap	Indirect evidence	Madrid, SpainHQ checked Sep 23, 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 23, 2026
12	CARSA	Indirect evidence	Getxo - Las Arenas, SpainHQ checked Sep 23, 2026	n/a	274 contacts →
	Indirect 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 23, 2026
13	Adlanter	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	201-500	260 contacts →
	Indirect evidence “At Adlanter (formerly Gesdocument), we are a comprehensive business consultancy aiming to be the benchmark in Spain and Portugal for our quality of service, talent, and…” Source: RevenueBase Database · checked Sep 23, 2026
14	TAX Economistas Y Abogados	Indirect evidence	Figueres, SpainHQ checked Sep 23, 2026	201-500	233 contacts →
	Indirect evidence “TAX Economistas y Abogados es un grupo con 50 asesorías de empresa, con más de 35 años de experiencia en el sector y 300 profesionales.” Source: RevenueBase Database · checked Sep 23, 2026
15	Lider IT Consulting	Indirect evidence	Llanera, SpainHQ checked Sep 23, 2026	201-500	204 contacts →
	Indirect evidence “En LIDER IT Consulting llevamos más de 40 años ayudando a nuestros clientes a mejorar la gestión mediante la consultoría, el desarrollo y la implantación de soluciones integradas.” Source: RevenueBase Database · checked Sep 23, 2026
16	Corus Consulting	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	201-500	203 contacts →
	Indirect evidence “Corus es una consultora tecnológica y de negocio con más de 20 años de experiencia en el sector, con más de 400 profesionales trabajando en proyectos nacionales e internacionales…” Source: RevenueBase Database · checked Sep 23, 2026
17	IFR Group	Indirect evidence	Lleida, SpainHQ checked Sep 23, 2026	51-200	199 contacts →
	Indirect evidence “IFR Group is a consultancy founded in 1985 that supports companies in transforming their management, offering solutions that integrate technology, sector expertise, and a vision…” Source: RevenueBase Database · checked Sep 23, 2026
18	Newlink Spain	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	51-200	175 contacts →
	Indirect evidence “Newlink es una consultora internacional con más de 20 años en el sector, con sede en Miami (EE.UU.) y oficinas en España y en numerosos países de Latinoamérica.” Source: RevenueBase Database · checked Sep 23, 2026
19	Arbentia	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	51-200	171 contacts →
	Indirect evidence “En ARBENTIA somos una consultora especializada en tecnología que impulsa la transformación digital de las empresas.” Source: RevenueBase Database · checked Sep 23, 2026
20	Arelance	Indirect evidence	Málaga, SpainHQ checked Sep 23, 2026	201-500	169 contacts →
	Indirect evidence “Grupo Arelance es una consultora tecnológica especializada en el desarrollo y puesta en marcha de soluciones integrales y Soporte a Proyectos en el ámbito de las Tecnologías de la…” Source: RevenueBase Database · checked Sep 23, 2026
21	Tactio	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	51-200	166 contacts →
	Indirect evidence “Diriges una empresa y notas que su crecimiento depende demasiado de ti?” Source: RevenueBase Database · checked Sep 23, 2026
22	Desic Consultora Tecnológica	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 23, 2026	201-500	165 contacts →
	Indirect evidence “Soluciones tecnológicas para rentabilizar su empresa.” Source: RevenueBase Database · checked Sep 23, 2026
23	PIXIE	Indirect evidence	Barcelona, SpainHQ checked Sep 23, 2026	51-200	163 contacts →
	Indirect evidence “Founded in 2007, Pixie supplies SAP®, Salesforce®, Microsoft® and other IT consulting and recruitment services across all sectors of industry and throughout most geographical…” Source: RevenueBase Database · checked Sep 23, 2026
24	Inerza, S.A	Indirect evidence	Las Palmas De Gran Canaria, SpainHQ checked Sep 23, 2026	51-200	162 contacts →
	Indirect evidence “INERZA es una organización de consultoría, especializada en la implantación de soluciones TIC, en el desarrollo de software y en servicios de outsourcing (de procesos de negocio…” Source: RevenueBase Database · checked Sep 23, 2026
25	M2c Consulting	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	n/a	151 contacts →
	Indirect evidence “M2C's mission is to help customers adapt their business processes to the current competitive reality and adopt the technology to make simple and effective business processes…” Source: RevenueBase Database · checked Sep 23, 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: B2B consultancies. 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 B2B consultancies.
Partial evidence: Its own public description names part of B2B consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name B2B consultancies. 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 25 of 6,349 B2B consultancies based in Spain

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B2B consultancies based in Spain at a glance

As of Sep 23, 2026

11.2%Verified-email coverage

1.7%Mobile-number coverage

8.1Average contacts per company

1-10Median size (employees)

24.2%Largest-city concentration · Madrid

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

4,645

11-50

1,361

51-200

253

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 25.0d

4,3500–30

1,31531–60

7961–90

390–180

27180+

Company record updated

Median 87.0d

00–30

12,34731–60

22,23761–90

14,91290–180

2,051180+

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 B2B consultancies, 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 “B2B consultancies”. 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 B2B consultancies), 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 B2B consultancies, 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, 5,774 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 23, 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.

B2B consultancies 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 B2B consultancies, 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 B2B consultancies are there based in Spain?

RevenueBase identified 6,349 B2B consultancies 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?

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

Which city has the most B2B consultancies?

Madrid leads with 1537 headquartered companies, followed by Barcelona (1021) and Valencia (265).

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 5,774 verified decision-maker contacts tracked across these 6,349 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 23, 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.