Company lists · Data refreshed September 2026

Top 25 Big 5 consulting firms based in Spain

Name: Big 5 consulting firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 1,128 companies tracked

RevenueBase identified 1,128 big 5 consulting firms headquartered in Spain as of September 2026 and tracks 23,428 professional contacts across them, including 1,931 with verified work emails and 252 with mobile numbers. Madrid is the largest hub.

This list covers big 5 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 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

1,128Companies

23,428Contacts tracked

1,931Verified emails

252Mobile numbers

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The 25 largest big 5 consulting firms based in Spain

Ranked by team size

Top 25 of 1,128 big 5 consulting firms 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 big 5 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	Management Solutions	Partial evidence	Madrid, SpainHQ checked Sep 23, 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 23, 2026
2	Izertis	Indirect evidence	Gijón, SpainHQ checked Sep 23, 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 23, 2026
3	NAE	Partial evidence	Barcelona, SpainHQ checked Sep 23, 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 23, 2026
4	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
5	Atsistemas	Partial evidence	Las Rozas, SpainHQ checked Sep 23, 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 23, 2026
6	Excelia	Partial evidence	Pozuelo De Alarcón, SpainHQ checked Sep 23, 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 23, 2026
7	Viseo Iberia	Partial evidence	Madrid, SpainHQ checked Sep 23, 2026	1,001-5,000	309 contacts →
	Partial 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
8	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
9	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
10	Lider IT Consulting	Partial evidence	Llanera, SpainHQ checked Sep 23, 2026	201-500	204 contacts →
	Partial 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
11	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
12	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
13	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
14	DABO	Partial evidence	Antequera, SpainHQ checked Sep 23, 2026	51-200	143 contacts →
	Partial evidence “Dabo Consulting es un grupo empresarial que nace con el objetivo de ofrecer servicios profesionales para asesorías; de esta forma, nos podríamos convertir en su único proveedor de…” Source: RevenueBase Database · checked Sep 23, 2026
15	Better Consultants	Indirect evidence	Barcelona, SpainHQ checked Sep 23, 2026	51-200	137 contacts →
	Indirect evidence “Better Consultants is the strategic partner for innovation and digital transformation.” Source: RevenueBase Database · checked Sep 23, 2026
16	Emetel	Indirect evidence	A Coruña, SpainHQ checked Sep 23, 2026	51-200	132 contacts →
	Indirect evidence “Somos una consultora de tecnología estratégica.” Source: RevenueBase Database · checked Sep 23, 2026
17	Improven Consultoría DE Negocio	Indirect evidence	Valencia, SpainHQ checked Sep 23, 2026	51-200	108 contacts →
	Indirect evidence “Improven es una consultora estratégica de negocio que trabaja a medida con sus clientes, ayudándoles a crecer de forma sostenible y a generar valor e impacto real en la economía y…” Source: RevenueBase Database · checked Sep 23, 2026
18	Gefiscal ETL Global	Indirect evidence	Cáceres, SpainHQ checked Sep 23, 2026	51-200	101 contacts →
	Indirect evidence “El Grupo Gefiscal es una Asesoría-Consultoría Integral, especializada en todo tipo de Empresas, Profesionales y Particulares.” Source: RevenueBase Database · checked Sep 23, 2026
19	Rocasalvatella	Partial evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 23, 2026	51-200	100 contacts →
	Partial evidence “RocaSalvatella is a strategic consulting services specialised in the digital transformation of business.” Source: RevenueBase Database · checked Sep 23, 2026
20	Aibe Formación	Indirect evidence	Antequera, SpainHQ checked Sep 23, 2026	51-200	96 contacts →
	Indirect evidence “Nuestro único objetivo es que nuestros clientes alcancen los suyos” Personas comprometidas con el Cliente Profesionales del derecho, la economía, los recursos humanos, la…” Source: RevenueBase Database · checked Sep 23, 2026
21	Ledamc	Indirect evidence	Madrid, SpainHQ checked Sep 23, 2026	51-200	94 contacts →
	Indirect evidence “LedaMC helps its clients to increase the IT contribution to business through improvement of providers’ management, increase in productivity, software testing optimization, quality…” Source: RevenueBase Database · checked Sep 23, 2026
22	KELEA	Indirect evidence	A Coruña, SpainHQ checked Sep 23, 2026	51-200	92 contacts →
	Indirect evidence “En Kelea, nos mueve un propósito claro: hacer del trabajo un lugar mejor para las personas.” Source: RevenueBase Database · checked Sep 23, 2026
23	Consultia IT	Partial evidence	Madrid, SpainHQ checked Sep 23, 2026	51-200	80 contacts →
	Partial evidence “Consultia IT is an expert team within Linkroad, focused on pragmatic execution across strategy, operations and technology.” Source: RevenueBase Database · checked Sep 23, 2026
24	EVM	Partial evidence	Santa Cruz De Tenerife, SpainHQ checked Sep 23, 2026	51-200	73 contacts →
	Partial evidence “In EVM we help out clients confront their most complex challenges through the combination of our strategic consulting, data science and digital transformation services.” Source: RevenueBase Database · checked Sep 23, 2026
25	Arena. Financial Tech	Partial evidence	Madrid, SpainHQ checked Sep 23, 2026	51-200	64 contacts →
	Partial evidence “ARENA Consulting es una empresa especializada en Tecnologías de la Información, que ofrece servicios de Consultoría, Desarrollo de Aplicaciones, Soporte y Administración de…” 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: big 5 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 big 5 consulting firms.
Partial evidence: Its own public description names part of big 5 consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name big 5 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 25 of 1,128 big 5 consulting firms based in Spain

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Big 5 consulting firms based in Spain at a glance

As of Sep 23, 2026

8.2%Verified-email coverage

1.1%Mobile-number coverage

20.8Average contacts per company

1-10Median size (employees)

26.4%Largest-city concentration · Madrid

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

758

11-50

290

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

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

Email last verified

Median 25.0d

1,4870–30

40531–60

2861–90

090–180

11180+

Company record updated

Median 78.0d

00–30

6,03731–60

11,18161–90

5,22990–180

981180+

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 big 5 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 “big 5 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 big 5 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 big 5 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, 1,931 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.

Big 5 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 big 5 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 big 5 consulting firms are there based in Spain?

RevenueBase identified 1,128 big 5 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?

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

Which city has the most big 5 consulting firms?

Madrid leads with 298 headquartered companies, followed by Barcelona (190) and Valencia (48).

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 1,931 verified decision-maker contacts tracked across these 1,128 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.