Company lists · Data verified August 2026

Top 12 Customer service outsourcing companies based in Serbia

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 38 companies tracked

There are 38 customer service outsourcing companies headquartered in Serbia (RevenueBase, August 2026). RevenueBase tracks 822 professional contacts across them, including 117 with verified work emails and 10 with mobile numbers. Belgrade is the largest hub.

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

38Companies

822Contacts tracked

117Verified emails

10Mobile numbers

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The 12 largest customer service outsourcing companies based in Serbia

Ranked by team size

Top 12 of 38 customer service outsourcing companies based in Serbia, 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	MPLUS	Belgrade	10001+	214	2
2	Contact Service	Belgrade	51-200	123	4
3	Teamwhale	Belgrade	201-500	83	36
4	Callosseum Contact Centre	Stari Grad	51-200	32	14
5	Globalkom	Belgrade	201-500	28	1
6	Let's Process IT	Belgrade	11-50	17	10
7	Coris Assistance	Belgrade	51-200	17	7
8	Paradox Consulting DOO	Novi Sad	51-200	16	1
9	Nexus Technology	Belgrade	11-50	13	1
10	Local Sales Force	Belgrade	11-50	12	2
11	Sitel SBA	Belgrade	11-50	12	1
12	ACC Solutions AG	Belgrade	11-50	7	3

Showing 12 of 38 customer service outsourcing companies based in Serbia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 117 reachable decision-makers.

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Customer service outsourcing companies based in Serbia at a glance

As of Aug 28, 2026

51-200Median size (employees)

BelgradeLargest hub · 23 HQs

10Contacts 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

10001+

Customer service outsourcing companies by metro

Metro	Companies
Customer service outsourcing companies in Belgrade	23
Customer service outsourcing companies in Novi Sad	7
Customer service outsourcing companies in Beograd	2
Customer service outsourcing companies in Nis	1
Customer service outsourcing companies in Stari Grad	1
Customer service outsourcing companies in Belgrade Vracar	1
Customer service outsourcing companies in Indjija	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 Serbia.
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 Serbia?

There are 38 customer service outsourcing companies headquartered in Serbia as of August 2026 (RevenueBase).

What is the largest company on this list?

MPLUS, headquartered in Belgrade, tops this list with the largest team on record.

Which city has the most customer service outsourcing companies?

Belgrade leads with 23 headquartered companies, followed by Novi Sad (7) and Beograd (2).

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 117 verified decision-maker contacts tracked across these 38 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.