Company lists · Data refreshed November 2026

Top 25 Outsourcing firms based in Spain

RevenueBase identified 672 company matches for outsourcing firms associated with Spain as of November 2026 and tracks 46,947 professional contacts across them, including 4,603 with verified work emails. Madrid is the largest hub.

This list covers company matches for outsourcing firms associated with Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
672Companies
46,947Contacts tracked
4,603Verified emails
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The 25 largest outsourcing firms based in Spain

Ranked by team size
Top 25 of 672 company matches for outsourcing firms based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+28,482 contacts →

Exact match

“Konecta is a leading innovative global service provider in customer management business process outsourcing, with passionate employees working in 40 languages across 4 continents…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Nov 6, 20265,001-10,0001,608 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPozuelo De Alarcón, SpainHQ recorded Nov 6, 20261,001-5,0001,085 contacts →

Exact match

“Specialized services in order to provide to other companies outsourcing for activities, improving its performance and cost.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBarcelona, SpainHQ recorded Nov 6, 20261,001-5,000914 contacts →

Exact match

“Grupo Constant es una organización líder en soluciones de outsourcing, facilities y ETT, con más de 30 años de experiencia en el área de Recursos Humanos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+710 contacts →

Exact match

“Atento es la mayor empresa de servicios de gestión de relaciones con clientes y externalización de procesos de negocio (CRM/BPO) en Latinoamérica y uno de los cinco mayores…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBarakaldo, SpainHQ recorded Nov 6, 2026501-1,000522 contacts →

Exact match

“Grupo Versia es una compañía dedicada a la mejora de procesos de negocio de sus clientes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-200476 contacts →

Exact match

“Staff Global Group is a group specialised in comprehensive staff outsourcing services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBarcelona, SpainHQ recorded Nov 6, 2026501-1,000462 contacts →

Exact match

“Tessi IBERIA nace en 1.997 y aunque en el inicio se centra en la gestión hipotecaria, ya desde sus orígenes nace con unos valores fundamentales, que todavía hoy perviven, y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+440 contacts →

Exact match

“Buscamos y seleccionamos el mejor Talento a través de nuestra metodología RPO (Recruitment Process Outsourcing) acompañando a las organizaciones en la Gestión del Talento…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMálaga, SpainHQ recorded Nov 6, 20261,001-5,000339 contacts →

Exact match

“Grupo BCMGestionARTE es una corporación empresarial compuesta por empresas especializadas en la gestión integral y el Outsourcing de capital humano.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBarcelona, SpainHQ recorded Nov 6, 20265,001-10,000314 contacts →

Exact match

“The SELLBYTEL Group is one of the worldwide leading outsourcing specialists and part of Webhelp.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000305 contacts →

Exact match

“Empresa multi-servicio de activos inmobiliarios y procesos para las entidades financieras, organismos y compañías de todos los sectores.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000235 contacts →

Exact match

“Fundada en 1995, SEREM Consultoría Empresarial es una firma de capital íntegramente nacional dedicada a servicios de tecnologías de información (IT).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBoadilla Del Monte, SpainHQ recorded Nov 6, 2026201-500232 contacts →

Exact match

“WE ARE AQUANIMA GRUPO SANTANDER, a 100% SANTANDER company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000220 contacts →

Exact match

“Apostamos por la Transformación para adaptarnos y ser flexibles a las necesidades de nuestros clientes y fortalecer cada vez más nuestros mecanismos de seguimiento y trazabilidad…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMálaga, SpainHQ recorded Nov 6, 2026501-1,000206 contacts →

Exact match

“Bukit BPO es una compañía internacional dedicada al negocio del Business Process Outsourcing y que actúa como partner tecnológico y operacional para clientes de todo el mundo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMálaga, SpainHQ recorded Nov 6, 2026201-500202 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,000176 contacts →

Exact match

“Grupo Alarcon somos una empresa de limpieza especialista en la externalización de servicios de elevada calidad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBarcelona, SpainHQ recorded Nov 6, 2026201-500150 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSan Sebastian De Los Reyes, SpainHQ recorded Nov 6, 2026201-500150 contacts →

Exact match

“En Flexibleos Grupo Nortempo convertimos tus objetivos de ventas en resultados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLa Coruña, SpainHQ recorded Nov 6, 2026201-500128 contacts →

Exact match

“Servicios Reunidos, nace en 1994 con la misión de ayudar a los clientes en la implantación de sus estrategias de negocio mediante el outsourcing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 6, 2026201-500123 contacts →

Exact match

“Krell es una empresa con 100% capital español, fundada en el año 2006.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchZaragoza, SpainHQ recorded Nov 6, 2026501-1,000120 contacts →

Exact match

“Empresa dedicada al outsourcing de servicios de alta calidad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchArtica, SpainHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“HelPhone es una empresa especializada en la prestación de servicios online.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchA Coruña, SpainHQ recorded Nov 6, 2026201-500111 contacts →

Exact match

“Especialistas en externalización de procesos logísticos, industriales y hoteleros.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 672 outsourcing firms based in Spain

See the full list, filter by size, metro and specialty, and access 4,603 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsourcing firms based in Spain at a glance

As of Nov 6, 2026
9.8%Verified-email coverage
69.9Average contacts per company
11-50Median size (employees)
30.7%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
313
11-50
182
51-200
94
201-500
32
501-1,000
27
1,001-5,000
12
5,001-10,000
4
10001+
3

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 672 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Spain whose business descriptions match “outsourcing firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 4,603 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “outsourcing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsourcing firms are there based in Spain?

RevenueBase identified 672 company matches for outsourcing firms associated with Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Konecta tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most outsourcing firms?

Madrid leads with 206 company records, followed by Barcelona (102) and Malaga (23).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,603 professional contacts with verified work emails tracked across these 672 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.