Company lists · Data refreshed September 2026
Top 25 Customer acquisition outsourcing companies based in Spain
RevenueBase identified 250 customer acquisition outsourcing companies headquartered in Spain as of September 2026 and tracks 2,399 professional contacts across them, including 176 with verified work emails. Madrid is the largest hub.
This list covers customer acquisition outsourcing companies 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 28, 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.
The 25 largest customer acquisition outsourcing companies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 208 contacts → | ||||
Indirect evidence “Mediapost es una compañía líder en servicios de marketing relacional que te ofrece una amplia gama de soluciones multicanal que te ayudarán a captar nuevos clientes, fidelizar a…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 207 contacts → | ||||
Partial evidence “The Customer Value Agency Somos la agencia digital de ventas que te acompaña captando y cuidando a tus clientes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 194 contacts → | ||||
Indirect evidence “BNZSA, powered by Anteriad is a leading marketing agency specialising in tele-based demand generation with a team of more than 350 who are experts in delivering qualified…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 128 contacts → | ||||
Indirect evidence “adSalsa is one of the Leading Lead Generation and Database Agencies in Europe.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 82 contacts → | ||||
Partial evidence “En North Market ayudamos a empresas a crecer en ventas mediante outsourcing comercial: diseñamos, seleccionamos, formamos y gestionamos equipos de venta a medida para alcanzar…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 74 contacts → | ||||
Indirect evidence “Cosmos es un Call Center ofrece a sus clientes un servicio omnicanal de última tecnología desde sus centros en España, Rumanía, Paraguay y Marruecos.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 40 contacts → | ||||
Indirect evidence “CONSTRUIMOS CLIENTES Proporcionamos soluciones de externalización a medida para empresas que necesitan agilidad, flexibilidad y resultados.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 39 contacts → | ||||
Indirect evidence “Llevamos más de una década gestionando la infraestructura de marketing de grandes grupos empresariales.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 39 contacts → | ||||
Indirect evidence “Proporcionamos soluciones a la creciente necesidad de empresas que buscan mejorar sus relaciones con sus clientes a través de un servicio avanzado, profesionalizado y multicanal…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 30 contacts → | ||||
Indirect evidence “Vacolba es un partner de negocio orientado a la venta en el entorno digital.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Partial evidence “Servicios de Outsourcing Comercial y Marketing Online para aquellas empresas que buscan un crecimiento de ingresos previsible, sostenible y rentable.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 24 contacts → | ||||
Indirect evidence “Golden Line dispone de “300” puestos que utilizan la tecnología más avanzada en tratamiento de voz y datos.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 23 contacts → | ||||
Partial evidence “Telemail es una compañia especializada en los Servicios de Outsourcing y Marketing Directo, utilizando para ello tecnologia de ultima generación en Software, impresión y…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 contacts → | ||||
Indirect evidence “En TM System Contact Center desarrollamos campañas para tu empresa de Televentas, Telemarketing y Atención al Cliente.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 22 contacts → | ||||
Partial evidence “En Happytel ofrecemos soluciones personalizadas de servicios Outsourcing Comercial adaptado a sus necesidades dando un servicio integral de calidad asegurando una alta calidad de…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Indirect evidence “Agencia de publicidad y Marketing.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 18 contacts → | ||||
Strong evidence “We are helping ambitious businesses to accelerate their customer acquisition by generating high volumes of Leads.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 17 contacts → | ||||
Indirect evidence “Operiamo come intermediari commerciali per aziende di servizi B2B che vogliono acquisire nuovi clienti.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 16 contacts → | ||||
Indirect evidence “Hello, we are The Marketing Hub!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 contacts → | ||||
Indirect evidence “Online Marketing company based in Valencia and Barcelona specialized in email marketing, lead generation(sms marketing, sem) and telephonic leads.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Indirect evidence “naifman drives growth for tech companies with B2B consulting and outsourced sales.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 11 contacts → | ||||
Indirect evidence “Cultivating Growth Through Strategic Lead Generation At Plenty, we're not just another lead generation agency – we're your partners in growth.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 10 contacts → | ||||
Indirect evidence “Datawork : Expert Data et Performance Marketing A l'aide de nos offres Data, Marketing à la performance et Marketing multi-local, nous répondons à vos objectifs de - Génération de…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 10 contacts → | ||||
Indirect evidence “Somos una empresa Sales Tech especializada en Paid Media y Automatización de ventas y procesos comerciales para el sector de distribuidores B2B.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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 acquisition outsourcing companies. 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 acquisition outsourcing companies.
- Partial evidence
- Its own public description names part of customer acquisition outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name customer acquisition outsourcing companies. 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 250 customer acquisition outsourcing companies based in Spain
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Customer acquisition outsourcing companies based in Spain at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 250 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 customer acquisition outsourcing companies, 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 acquisition outsourcing companies”. 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 acquisition outsourcing companies), 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 acquisition outsourcing companies, 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, 176 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 28, 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 acquisition outsourcing companies 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 customer acquisition outsourcing companies, 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 acquisition outsourcing companies are there based in Spain?
RevenueBase identified 250 customer acquisition outsourcing companies 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?
Mediapost Group, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most customer acquisition outsourcing companies?
Madrid leads with 62 headquartered companies, followed by Barcelona (49) and Valencia (13).
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 176 verified decision-maker contacts tracked across these 250 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 28, 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.
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