Company lists · Data refreshed September 2026

Top 25 Customer service consulting firms based in Spain

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 1,327 companies tracked

RevenueBase identified 1,327 customer service consulting firms headquartered in Spain as of September 2026 and tracks 20,749 professional contacts across them, including 1,466 with verified work emails and 288 with mobile numbers. Madrid is the largest hub.

This list covers customer service 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 24, 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 24, 2026 86% judged on-target in blind review

1,327Companies

20,749Contacts tracked

1,466Verified emails

288Mobile numbers

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The 25 largest customer service consulting firms based in Spain

Ranked by team size

Top 25 of 1,327 customer service consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to customer service 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 24, 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 24, 2026
2	GSS Global Sales Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	10001+	3,716 contacts →
	Indirect evidence “is a tech company specialized in providing, and for.” Source: RevenueBase Database · checked Sep 24, 2026
3	Grupo Unísono	Partial evidence	Madrid, SpainHQ checked Sep 24, 2026	n/a	1,306 contacts →
	Partial evidence “At Unisono, for more than 20 years we have been working side by side with our customers across the globe to meet their demands as well as our own.” Source: RevenueBase Database · checked Sep 24, 2026
4	Arvato CRM Solutions Iberia & Latam	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	10001+	612 contacts →
	Indirect evidence “Somos Arvato, diseñamos, ofrecemos y marcamos la diferencia en el servicio de atención al cliente que prestamos en nombre de algunas de las marcas más respetadas del mundo.” Source: RevenueBase Database · checked Sep 24, 2026
5	NAE	Partial evidence	Barcelona, SpainHQ checked Sep 24, 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 24, 2026
6	IZO	Partial evidence	Alcobendas, SpainHQ checked Sep 24, 2026	201-500	484 contacts →
	Partial evidence “Izo is a specialized consultancy in Customer & Social Media Experience Management.” Source: RevenueBase Database · checked Sep 24, 2026
7	MST Holding	Strong evidence	Barcelona, SpainHQ checked Sep 24, 2026	1,001-5,000	402 contacts →
	Strong evidence “MST is a leading global provider of Business Process Services, Consulting and Multichannel Contact Centre services, focused on improving the customer experience.” Source: RevenueBase Database · checked Sep 24, 2026
8	Lanalden	Indirect evidence	Derio, SpainHQ checked Sep 24, 2026	1,001-5,000	283 contacts →
	Indirect evidence “Lanalden \| Conectamos personas, impulsamos negocios: En Lanalden, transformamos la experiencia del cliente a través de la innovación, la tecnología y el talento de nuestro equipo.” Source: RevenueBase Database · checked Sep 24, 2026
9	Newlink Spain	Indirect evidence	Madrid, SpainHQ checked Sep 24, 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 24, 2026
10	Arelance	Indirect evidence	Málaga, SpainHQ checked Sep 24, 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 24, 2026
11	M2c Consulting	Partial evidence	Madrid, SpainHQ checked Sep 24, 2026	n/a	151 contacts →
	Partial 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 24, 2026
12	Sabio España	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	501-1,000	143 contacts →
	Indirect evidence “Nos aseguramos de que la Experiencia del Cliente sea excelente.” Source: RevenueBase Database · checked Sep 24, 2026
13	DABO	Partial evidence	Antequera, SpainHQ checked Sep 24, 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 24, 2026
14	Lukkap	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	128 contacts →
	Indirect evidence “Transforming people and companies generating future.” Source: RevenueBase Database · checked Sep 24, 2026
15	PDM	Strong evidence	Alcobendas, SpainHQ checked Sep 24, 2026	51-200	125 contacts →
	Strong evidence “Marketing Consulting firm focused on Customer Experience, providing an innovative, omnichannel and technological vision.” Source: RevenueBase Database · checked Sep 24, 2026
16	Darwin & Verne	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	116 contacts →
	Indirect evidence “There is Darwin in everything and there is Verne in everything.” Source: RevenueBase Database · checked Sep 24, 2026
17	Abinitio Consulting, S.L.U	Strong evidence	Barcelona, SpainHQ checked Sep 24, 2026	201-500	100 contacts →
	Strong evidence “Consulting & BPO Services Abinitio offers specialized management services to the customers to help them, from the beginning, to improve their businesses.” Source: RevenueBase Database · checked Sep 24, 2026
18	Aibe Formación	Indirect evidence	Antequera, SpainHQ checked Sep 24, 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 24, 2026
19	Omnitel	Indirect evidence	Las Rozas De Madrid, SpainHQ checked Sep 24, 2026	51-200	90 contacts →
	Indirect evidence “Omnitel Comunicaciones nace en 1995 con la vocación de ofrecer soluciones personalizadas en el marco del marketing tanto online como offline, la tecnología, la formación y la…” Source: RevenueBase Database · checked Sep 24, 2026
20	BE Beyond	Indirect evidence	Mairena Del Aljarafe, SpainHQ checked Sep 24, 2026	51-200	90 contacts →
	Indirect evidence “Beyond Mobility es una consultora con amplia experiencia en proyectos de comunicaciones y tecnológicos.” Source: RevenueBase Database · checked Sep 24, 2026
21	Adade Asesores	Partial evidence	Madrid, SpainHQ checked Sep 24, 2026	501-1,000	77 contacts →
	Partial evidence “ADADE CONSULTING GROUP is a business consulting group with offices in Spain, Portugal, Uruguay, Peru, Venezuela, Mexico, Ecuador, Guatemala, Colombia and United States and…” Source: RevenueBase Database · checked Sep 24, 2026
22	Experientia	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	71 contacts →
	Indirect evidence “Somos una consultora de brand experience con más de 40 años de experiencia.” Source: RevenueBase Database · checked Sep 24, 2026
23	Braintrust Consulting Services	Partial evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	68 contacts →
	Partial evidence “Braintrust is a member firm of Andersen Consulting, a leading business consulting firm with a presence in more than locations worldwide.” Source: RevenueBase Database · checked Sep 24, 2026
24	Development Systems	Indirect evidence	Madrid, SpainHQ checked Sep 24, 2026	51-200	68 contacts →
	Indirect evidence “Con + de 35 años de experiencia, Development Systems continua ofreciendo soluciones para la mejora de los modelos de negocio y la consecución del éxito en sus clientes.” Source: RevenueBase Database · checked Sep 24, 2026
25	Globalpraxis	Partial evidence	Barcelona, SpainHQ checked Sep 24, 2026	51-200	67 contacts →
	Partial evidence “The leading international consulting firm specialized in revenue growth management, route-to-market, and commercialization.” Source: RevenueBase Database · checked Sep 24, 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: customer service 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 customer service consulting firms.
Partial evidence: Its own public description names part of customer service consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer service 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 1,327 customer service consulting firms based in Spain

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Customer service consulting firms based in Spain at a glance

As of Sep 24, 2026

7.1%Verified-email coverage

1.4%Mobile-number coverage

15.6Average contacts per company

1-10Median size (employees)

25.3%Largest-city concentration · Madrid

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

954

11-50

283

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 26.0d

1,0940–30

32931–60

3061–90

190–180

12180+

Company record updated

Median 90.0d

00–30

3,27531–60

8,11361–90

8,58990–180

772180+

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 customer service 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 “customer service 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 customer service 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 customer service 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, 1,466 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 24, 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.

Customer service consulting firms by metro

Customer service consulting firms in Madrid336
Customer service consulting firms in Barcelona212
Customer service consulting firms in Valencia43
Customer service consulting firms in Sevilla34
Customer service consulting firms in Malaga29

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 customer service 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 customer service consulting firms are there based in Spain?

RevenueBase identified 1,327 customer service 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 customer service consulting firms?

Madrid leads with 336 headquartered companies, followed by Barcelona (212) and Valencia (43).

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 1,466 verified decision-maker contacts tracked across these 1,327 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 24, 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.