Company lists · Data refreshed September 2026

Top 25 Business consulting firm services based in Bilbao, Spain

Name: Business consulting firm services based in Bilbao, Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 124 companies tracked

RevenueBase identified 124 business consulting firm services headquartered in Bilbao, Spain as of September 2026 and tracks 984 professional contacts across them, including 122 with verified work emails. Across Spain, Madrid is the largest hub for this category (2,043 companies); Bilbao has 124.

This list covers business consulting firm services headquartered in Bilbao, 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

124Companies

984Contacts tracked

122Verified emails

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The 25 largest business consulting firm services based in Bilbao, Spain

Ranked by team size

Top 25 of 124 business consulting firm services based in Bilbao, Spain, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business consulting firm services: 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	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
2	Nexio Consulting	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	44 contacts →
	Indirect evidence “We guide you on how to achieve your objectives by researching, identifying current and future opportunities and challenges, and formulating recommendations.” Source: RevenueBase Database · checked Sep 23, 2026
3	Bultz-Lan Consulting	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	31 contacts →
	Indirect evidence “ekintzailetzan espezializatuta dagoen aholkularitza-enpresa bat da, prestakuntza eskaintzen ditugu, ordezkaritza daukagu- es una consultora especializada en.” Source: RevenueBase Database · checked Sep 23, 2026
4	Onenak Consulting Services	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	30 contacts →
	Indirect evidence “Expertos en Consultoría de Negocio, Procesos de Assessment y Mejora Continua.” Source: RevenueBase Database · checked Sep 23, 2026
5	Confianz	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	30 contacts →
	Indirect evidence “Confianz es una asesoría y consultoría de empresas, fundada en 1994, con oficinas en Madrid, Bilbao y San Sebastián.” Source: RevenueBase Database · checked Sep 23, 2026
6	Asenta Management Consultants	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	22 contacts →
	Indirect evidence “Somos una Consultoría de Dirección, especializada en métodos de gestión avanzada.” Source: RevenueBase Database · checked Sep 23, 2026
7	BMASI	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	22 contacts →
	Indirect evidence “20 años ayudando a empresas a decidir mejor, competir mejor y dejar huella positiva en su entorno.” Source: RevenueBase Database · checked Sep 23, 2026
8	M.A.C. Asesores Y Consultores Integrales	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	20 contacts →
	Indirect evidence “M.A.C.” Source: RevenueBase Database · checked Sep 23, 2026
9	Asesoría Aslan Asesores Y Abogados	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	14 contacts →
	Indirect evidence “ASLAN ASESORES & ABOGADOS es una de las Asesorías, Gestorías y Consultorías con mayor reconocimiento y prestigio de Bilbao, que presta servicios integrales en materia Laboral…” Source: RevenueBase Database · checked Sep 23, 2026
10	The Revenue	Strong evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	13 contacts →
	Strong evidence “The Revenue is a B2B Go-to-Market consulting firm that combines purchase intent intelligence, strategy and execution to help B2B companies achieve predictable growth.” Source: RevenueBase Database · checked Sep 23, 2026
11	Acyp Asesores	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	9 contacts →
	Indirect evidence “Los integrantes del equipo de ACYP trabajamos día a día estrechamente con nuestros clientes, de forma que podamos ofrecerles un trato profesional a la vez que cercano y personal.” Source: RevenueBase Database · checked Sep 23, 2026
12	Biscay Consulting, S.L	Strong evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	7 contacts →
	Strong evidence “En BISCAY CONSULTING tenemos como prioridad reportar a las corporaciones ese mix tan difícil: • CALIDAD a través del conocimiento de la normativa, • RIGOR TÉCNICO que reporte…” Source: RevenueBase Database · checked Sep 23, 2026
13	Inoberica	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	7 contacts →
	Indirect evidence “Let me introduce you to Inoberica, a leading company in the field of sales consultancy and translation services.” Source: RevenueBase Database · checked Sep 23, 2026
14	MB Asesores 2012 S.L.P	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	7 contacts →
	Indirect evidence “En MB Asesores nuestro principal objetivo, presente desde nuestros comienzos en 2008, es acompañarte en todo momento, prestando servicios jurídicos y de asesoramiento integral…” Source: RevenueBase Database · checked Sep 23, 2026
15	CPG Consejeros	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	6 contacts →
	Indirect evidence “El asesoramiento/implantación de todo tipo de procesos conducentes al Desarrollo de proyectos Estratégicos.” Source: RevenueBase Database · checked Sep 23, 2026
16	Serval Nervión	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	6 contacts →
	Indirect evidence “Serval Nervión lo formamos un gran equipo de profesionales con amplia y dilatada experiencia a través de la cual podemos adaptarnos a las exigencias de nuestros clientes…” Source: RevenueBase Database · checked Sep 23, 2026
17	Atarrabi Advisory Group	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	5 contacts →
	Indirect evidence “Atarrabi Kide es un grupo de servicios profesionales, especializados en.” Source: RevenueBase Database · checked Sep 23, 2026
18	HUB Advisory Partners	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	5 contacts →
	Indirect evidence “HUB Advisory Partners nace del espíritu inquieto de varios profesionales con larga trayectoria el la estrategia de negocio y corporativa.” Source: RevenueBase Database · checked Sep 23, 2026
19	Asem Indafisa Gestion Empresarial, S.L	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	5 contacts →
	Indirect evidence “Asem Indafisa es el resultado de la fusión de dos despachos profesionales de trayectoria similar con más de 20 años de experiencia en el sector de asesorías y gestión de empresas.” Source: RevenueBase Database · checked Sep 23, 2026
20	The Institute For Health & Strategy Si-Health	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	4 contacts →
	Indirect evidence “Somos una consultora de apoyo estratégico en el sector salud especializada en la gestión del cambio y la transformación organizativa.” Source: RevenueBase Database · checked Sep 23, 2026
21	Castaños Gestoría, Asesoría Y Abogados	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	4 contacts →
	Indirect evidence “Somos una empresa de servicios administrativos, jurídicos y económicos especializada en atender y solucionar las diversas necesidades y problemas de la pequeña y mediana empresa…” Source: RevenueBase Database · checked Sep 23, 2026
22	Alium Consulting	Strong evidence	Bilbao, SpainHQ checked Sep 23, 2026	11-50	4 contacts →
	Strong evidence “En Alium Consulting prestamos servicios de consultoría estratégica y operativa a empresas, asociaciones y a administraciones públicas, apoyando a nuestros clientes en:* la…” Source: RevenueBase Database · checked Sep 23, 2026
23	GTB AI	Strong evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	4 contacts →
	Strong evidence “Consulting” Source: RevenueBase Database · checked Sep 23, 2026
24	Interalde Asesoría Y Consultoría Financiera EN Bilbao	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	3 contacts →
	Indirect evidence “En Interalde somos una consultoría y asesoría en Bilbao que llevamos trabajando con pymes desde el año 2003.” Source: RevenueBase Database · checked Sep 23, 2026
25	Smart Jidoka	Indirect evidence	Bilbao, SpainHQ checked Sep 23, 2026	1-10	3 contacts →
	Indirect evidence “Somos un equipo de profesionales con amplia trayectoria y experiencia en la transformación de la gestión de empresas industriales y de servicios.” 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: business consulting firm services. 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 business consulting firm services.
Partial evidence: Its own public description names part of business consulting firm services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business consulting firm services. 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 124 business consulting firm services based in Bilbao, Spain

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Business consulting firm services based in Bilbao, Spain at a glance

As of Sep 23, 2026

12.4%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole Spain list rather than for Bilbao, so it is reported there. Company counts and contact totals on this page are exact for Bilbao, over 124 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 business consulting firm services, 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 Bilbao, Spain whose own description of what they do matches “business consulting firm services”. 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 business consulting firm services), 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 business consulting firm services, and records with no verified work email. Companies headquartered outside Bilbao 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, 122 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.

Business consulting firm services by metro in Spain

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 business consulting firm services, 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 business consulting firm services are there based in Bilbao, Spain?

RevenueBase identified 124 business consulting firm services headquartered in Bilbao, 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?

Erhardt Serikat, headquartered in Bilbao, tops this list with the largest team on record.

Which city in Spain has the most business consulting firm services?

Madrid leads Spain with 2,043 headquartered companies, followed by Barcelona (1,314) and Valencia (342). Bilbao has 124.

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 122 verified decision-maker contacts tracked across these 124 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.