Company lists · Data refreshed September 2026
Top 25 Customer service outsourcing agencies based in Spain
RevenueBase identified 264 customer service outsourcing agencies headquartered in Spain as of September 2026 and tracks 119,132 professional contacts across them, including 7,952 with verified work emails. Madrid is the largest hub.
This list covers customer service outsourcing agencies 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 21, 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 service outsourcing agencies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 23,763 contacts → | ||||
Strong evidence “Konecta is a leading innovative global service provider in customer management business process outsourcing, with passionate employees working in 40 languages across 4 continents…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,716 contacts → | ||||
Indirect evidence “is a tech company specialized in providing, and for.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,358 contacts → | ||||
Strong evidence “Emergia is a multinational company specialized in the comprehensive customer relationship management in the field of Interactive Contact Center, the business process outsourcing…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,447 contacts → | ||||
Indirect evidence “Grupo Marktel es un grupo empresarial que ofrece soluciones globales a sus clientes en el ámbito de la externalziación de servicios con el máximo nivel de especialización en las…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 460 contacts → | ||||
Partial evidence “Staff Global Group is a group specialised in comprehensive staff outsourcing services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 402 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 359 contacts → | ||||
Indirect evidence “Winche Redes Comerciales es la compañía experta en externalización de la fuerza de Ventas y en la gestión del punto de venta.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 352 contacts → | ||||
Indirect evidence “We are CPM!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 305 contacts → | ||||
Partial evidence “The SELLBYTEL Group is one of the worldwide leading outsourcing specialists and part of Webhelp.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 284 contacts → | ||||
Indirect evidence “Be Call Group, empresa española que presta soluciones globales a las necesidades de comunicación entre empresa y cliente.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 241 contacts → | ||||
Indirect evidence “Con casi 20 años de experiencia en la prestación de Servicios de Atención al Cliente/Ciudadano, Contactel ha logrado posicionarse en Canarias como el grupo empresarial referente…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 158 contacts → | ||||
Partial evidence “Externalia fue fundada en 2009 por Javier Vila con una visión clara: ofrecer soluciones de Outsourcing Comercial flexibles, eficaces y orientadas a resultados a empresas de Retail…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 157 contacts → | ||||
Indirect evidence “Somos un contact center especializado en gestión, venta y atención al cliente.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 143 contacts → | ||||
Indirect evidence “Grupo Alarcon somos una empresa de limpieza especialista en la externalización de servicios de elevada calidad.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 142 contacts → | ||||
Indirect evidence “Somos una empresa fundada en 2004 especializada en Servicios de Telemarketing y atención al cliente.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 116 contacts → | ||||
Partial evidence “Servicios Reunidos, nace en 1994 con la misión de ayudar a los clientes en la implantación de sus estrategias de negocio mediante el outsourcing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 111 contacts → | ||||
Partial evidence “Empresa dedicada al outsourcing de servicios de alta calidad.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 97 contacts → | ||||
Indirect evidence “CATSERVEIS SXXI es una empresa especializada en Marketing, en la externalización de procesos de negocio (BPO) y en la gestión integral de la experiencia de cliente a través de los…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 87 contacts → | ||||
Partial evidence “Codeactivos Outsourcing Services, es una compañía experta en externalización de procesos de negocio y la gestión de experiencias en servicio, prestando soluciones como…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 75 contacts → | ||||
Partial evidence “Nordic Operation Center is a business process outsourcer (BPO), specialising in customer experience, sales and marketing services via all communication channels including voice…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 51 contacts → | ||||
Indirect evidence “Rainbow Comunicaciones is a BPO Contact Center leader in multilingual campaigns.” Source: RevenueBase Database · checked Sep 21, 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 service outsourcing agencies. 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 outsourcing agencies.
- Partial evidence
- Its own public description names part of customer service outsourcing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name customer service outsourcing agencies. 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 264 customer service outsourcing agencies based in Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 7,952 reachable decision-makers.
Free signup · no credit card
Customer service outsourcing agencies based in Spain at a glance
As of Sep 21, 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 264 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 service outsourcing agencies, 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 outsourcing agencies”. 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 outsourcing agencies), 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 outsourcing agencies, 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, 7,952 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 21, 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 outsourcing agencies by metro
- Customer service outsourcing agencies in Madrid71
- Customer service outsourcing agencies in Barcelona45
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 outsourcing agencies, 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 outsourcing agencies are there based in Spain?
RevenueBase identified 264 customer service outsourcing agencies 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?
Konecta, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most customer service outsourcing agencies?
Madrid leads with 71 headquartered companies, followed by Barcelona (45) and Malaga (12).
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 7,952 verified decision-maker contacts tracked across these 264 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 264 customer service outsourcing agencies based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Customer service outsourcing agencies by geography
- Customer service outsourcing agencies based in Ahmedabad, India
- Customer service outsourcing agencies based in Bangalore, India
- Customer service outsourcing agencies based in Chennai, India
- Customer service outsourcing agencies based in Hyderabad, India
- Customer service outsourcing agencies based in Kolkata, India
- Customer service outsourcing agencies based in Mumbai, India
- Customer service outsourcing agencies based in New Delhi, India
- Customer service outsourcing agencies based in Noida, India
- Customer service outsourcing agencies based in Pune, India
- Customer service outsourcing agencies based in Karachi, Pakistan
- Customer service outsourcing agencies based in Lahore, Pakistan
- Customer service outsourcing agencies based in Rawalpindi, Pakistan
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Customer service outsourcing agencies based in Ahmedabad, India
- Customer service outsourcing agencies based in Bangalore, India
- Customer service outsourcing agencies based in Chennai, India
- Customer service outsourcing agencies based in Hyderabad, India
- Customer service outsourcing agencies based in Kolkata, India
- Customer service outsourcing agencies based in Mumbai, India