Company lists · Data verified August 2026

Top 16 Call center outsourcing companies based in Portugal

Name: Call center 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 35 companies tracked

There are 35 call center outsourcing companies headquartered in Portugal (RevenueBase, August 2026). RevenueBase tracks 3,253 professional contacts across them, including 220 with verified work emails and 46 with mobile numbers. Lisboa is the largest hub.

This list covers call center 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.

35Companies

3,253Contacts tracked

220Verified emails

46Mobile numbers

Unlock all 35 companies Free account · no credit card · 2 minutes

The 16 largest call center outsourcing companies based in Portugal

Ranked by team size

Top 16 of 35 call center 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	Reditus, SA	Lisboa	1,001-5,000	326	45
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	Teleperformance Portugal	Lisboa	51-200	121	27
7	Pluricall	Lisboa	201-500	100	14
8	Cluster Outsourcing Services Limited	Lisbon	201-500	80	45
9	Transcom	Matosinhos	51-200	76	3
10	Salt Services SA	Porto	201-500	58	16
11	GO Connection	Lisboa	51-200	48	10
12	Buwelo Europe	Lisbon	51-200	27	4
13	Necomplus Portugal	Agualva Cacem	501-1,000	24	5
14	Call Center 24h	Alcabideche	11-50	8	1
15	Ubinaweb	Lisboa	11-50	4	1
16	Grupo Multi Contact	Lisboa	51-200	3	1

Showing 16 of 35 call center outsourcing companies based in Portugal

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 220 reachable decision-makers.

Free account · no credit card

See all 35 companies

Call center outsourcing companies based in Portugal at a glance

As of Aug 28, 2026

51-200Median size (employees)

LisboaLargest hub · 13 HQs

46Contacts 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

Call center outsourcing companies by metro

Metro	Companies
Call center outsourcing companies in Lisboa	13
Call center outsourcing companies in Lisbon	6
Call center outsourcing companies in Porto	4
Call center outsourcing companies in Alcabideche	2
Call center outsourcing companies in Aroeira	1
Call center outsourcing companies in Coimbra	1
Call center outsourcing companies in Figueira Da Foz Figueira Da Foz	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 “call center 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 call center outsourcing companies are there based in Portugal?

There are 35 call center 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 call center outsourcing companies?

Lisboa leads with 13 headquartered companies, followed by Lisbon (6) 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 220 verified decision-maker contacts tracked across these 35 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.

Ready to reach these companies? Verified emails and direct dials for all 35 call center outsourcing companies based in Portugal. Start with a free account, no credit card.

Get the full list

Related lists

Call center outsourcing companies by geography

Browse the directory

Browse: Companies home · All Portugal lists · All Call center outsourcing companies lists · New lists

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.