Company lists · Data verified August 2026

Top 20 Call center service providers based in Spain

Name: Call center service providers based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 86 companies tracked

There are 86 call center service providers headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 3,634 professional contacts across them, including 140 with verified work emails and 12 with mobile numbers. Barcelona is the largest hub.

This list covers call center service providers headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

86Companies

3,634Contacts tracked

140Verified emails

12Mobile numbers

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The 20 largest call center service providers based in Spain

Ranked by team size

Top 20 of 86 call center service providers based in Spain, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Fastco	Madrid	1,001-5,000	601	16
2	Unitono Contact Center	San Fernando De Henares	5,001-10,000	459	27
3	CPM International Contact Centre	Barcelona	1,001-5,000	355	9
4	Sellbytel Group Spain	Barcelona	5,001-10,000	308	32
5	Contactel	Telde	201-500	240	7
6	Stream Mobile	Cartes	501-1,000	157	5
7	Cosmos Call Center	Madrid	501-1,000	74	4
8	Call4u	n/a	51-200	51	8
9	Logikaline	Abaltzisketa	51-200	50	1
10	Jcp2call	Malaga	501-1,000	39	1
11	Essentiel-Outsourcing	Barcelona	201-500	34	5
12	CLICC	Barcelona	51-200	25	3
13	Call Center Barcelona	Barcelona	51-200	25	1
14	TM System Contact Center	Granada	11-50	23	5
15	Grupo Aedea Comunicacion	Sant Cugat Del Valles	51-200	22	3
16	RE Redes Externas Outsourcing S.L	Seville	11-50	21	2
17	Grupo Dtel	Barcelona	51-200	21	1
18	Movimer World	Lleida	201-500	14	2
19	Voicedesk	Fuengirola	51-200	11	1
20	Asstel SIS SL	Reus	11-50	3	2

Showing 20 of 86 call center service providers based in Spain

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Call center service providers based in Spain at a glance

As of Aug 28, 2026

11-50Median size (employees)

BarcelonaLargest hub · 13 HQs

12Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Call center service providers by metro

Metro	Companies
Call center service providers in Barcelona	13
Call center service providers in Madrid	12
Call center service providers in Malaga	3
Call center service providers in Marbella	2
Call center service providers in Benalmadena	2
Call center service providers in Santander	2
Call center service providers in Torremolinos	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “call center service providers”, with match quality audited by blind human judging, and headquartered in Spain.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many call center service providers are there based in Spain?

There are 86 call center service providers headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Fastco, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most call center service providers?

Barcelona leads with 13 headquartered companies, followed by Madrid (12) and Malaga (3).

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 140 verified decision-maker contacts tracked across these 86 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.