Company lists · Data verified August 2026

Top 20 Customer service call centers based in Spain

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 83 companies tracked

There are 83 customer service call centers headquartered in Spain (RevenueBase, August 2026). RevenueBase tracks 4,124 professional contacts across them, including 144 with verified work emails and 28 with mobile numbers. Madrid is the largest hub.

This list covers customer service call centers 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.

83Companies

4,124Contacts tracked

144Verified emails

28Mobile numbers

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The 20 largest customer service call centers based in Spain

Ranked by team size

Top 20 of 83 customer service call centers 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	Arvato CRM Solutions Iberia & Latam	Madrid	10001+	610	6
2	Fastco	Madrid	1,001-5,000	601	16
3	Unitono Contact Center	San Fernando De Henares	5,001-10,000	459	27
4	CPM International Contact Centre	Barcelona	1,001-5,000	355	9
5	Sellbytel Group Spain	Barcelona	5,001-10,000	308	32
6	Contactel	Telde	201-500	240	7
7	Stream Mobile	Cartes	501-1,000	157	5
8	Cosmos Call Center	Madrid	501-1,000	74	4
9	Call4u	n/a	51-200	51	8
10	Logikaline	Abaltzisketa	51-200	50	1
11	Jcp2call	Malaga	501-1,000	39	1
12	Essentiel-Outsourcing	Barcelona	201-500	34	5
13	CLICC	Barcelona	51-200	25	3
14	Call Center Barcelona	Barcelona	51-200	25	1
15	TM System Contact Center	Granada	11-50	23	5
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 83 customer service call centers based in Spain

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 144 reachable decision-makers.

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Customer service call centers based in Spain at a glance

As of Aug 28, 2026

11-50Median size (employees)

MadridLargest hub · 10 HQs

28Contacts with mobile numbers

0Emails 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

10001+

Customer service call centers by metro

Metro	Companies
Customer service call centers in Madrid	10
Customer service call centers in Barcelona	9
Customer service call centers in Malaga	5
Customer service call centers in Valencia	3
Customer service call centers in Benalmadena	2
Customer service call centers in Torremolinos	2
Customer service call centers in Santander	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 “customer service call centers”, 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; 0 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 customer service call centers are there based in Spain?

There are 83 customer service call centers headquartered in Spain as of August 2026 (RevenueBase).

What is the largest company on this list?

Arvato CRM Solutions Iberia & Latam, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most customer service call centers?

Madrid leads with 10 headquartered companies, followed by Barcelona (9) and Malaga (5).

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 144 verified decision-maker contacts tracked across these 83 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.