Company lists · Data verified August 2026

Top 16 Customer service outsourcing companies based in Portugal

Name: Customer service outsourcing companies based in Portugal
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 46 companies tracked

There are 46 customer service outsourcing companies headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 3,454 professional contacts across them, including 199 with verified work emails and 43 with mobile numbers. Lisboa is the largest hub.

This list covers customer service outsourcing companies headquartered in Portugal, 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.

46Companies

3,454Contacts tracked

199Verified emails

43Mobile numbers

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The 16 largest customer service outsourcing companies based in Portugal

Ranked by team size

Top 16 of 46 customer service outsourcing companies based in Portugal, 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	Marktel	n/a	5,001-10,000	1,443	6
2	Staff Global Group	Oeiras	51-200	454	33
3	Leverage Contact Center	Lisboa	201-500	188	1
4	Connecta Group	Lisboa	201-500	165	25
5	Ventask	Lisboa	201-500	157	16
6	Pluricall	Lisboa	201-500	100	14
7	Cluster Outsourcing Services Limited	Lisbon	201-500	80	45
8	Transcom	Matosinhos	51-200	76	3
9	Salt Services SA	Porto	201-500	58	16
10	GO Connection	Lisboa	51-200	48	10
11	Cubotonic	Venda Do Pinheiro	51-200	35	16
12	Buwelo Europe	Lisbon	51-200	27	4
13	Necomplus Portugal	Agualva Cacem	501-1,000	24	5
14	S Team Consulting	Amadora	n/a	16	3
15	Call Center 24h	Alcabideche	11-50	8	1
16	Ubinaweb	Lisboa	11-50	4	1

Showing 16 of 46 customer service outsourcing companies based in Portugal

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Customer service outsourcing companies based in Portugal at a glance

As of Aug 28, 2026

51-200Median size (employees)

LisboaLargest hub · 14 HQs

43Contacts 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

Customer service outsourcing companies by metro

Metro	Companies
Customer service outsourcing companies in Lisboa	14
Customer service outsourcing companies in Lisbon	9
Customer service outsourcing companies in Porto	4
Customer service outsourcing companies in Alcabideche	2
Customer service outsourcing companies in Paco De Arcos	2
Customer service outsourcing companies in Matosinhos	2
Customer service outsourcing companies in Aveiras De Cima	1

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 outsourcing companies”, with match quality audited by blind human judging, and headquartered in Portugal.
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 outsourcing companies are there based in Portugal?

There are 46 customer service outsourcing companies headquartered in Portugal as of August 2026 (RevenueBase).

What is the largest company on this list?

Marktel, headquartered in Portugal, tops this list with the largest team on record.

Which city has the most customer service outsourcing companies?

Lisboa leads with 14 headquartered companies, followed by Lisbon (9) and Porto (4).

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 199 verified decision-maker contacts tracked across these 46 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.