Company lists · Data refreshed September 2026

Top 12 Customer service solution providers based in Serbia

RevenueBase identified 30 customer service solution providers headquartered in Serbia as of September 2026 and tracks 539 professional contacts across them, including 107 with verified work emails. Belgrade is the largest hub.

This list covers customer service solution providers headquartered in Serbia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
30Companies
539Contacts tracked
107Verified emails
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The 12 largest customer service solution providers based in Serbia

Ranked by team size
Top 12 of 30 customer service solution providers based in Serbia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to customer service solution providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBelgrade, SerbiaHQ checked Sep 19, 202651-200123 contacts →

Partial evidence

“We offer the full range of inbound customer services that help you increase sales, retain customers, and create brand loyalty.”

Source: RevenueBase Database · checked Sep 19, 2026
2Strong evidenceBelgrade, SerbiaHQ checked Sep 19, 2026201-50083 contacts →

Strong evidence

“TeamWhale is an outsourced multilingual customer service company delivering the best solutions to create high quality communication between customers and their clients.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceBeograd, SerbiaHQ checked Sep 19, 2026501-1,00055 contacts →

Partial evidence

“We are a Business Process Outsourcing company and Customer Care is our core.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceBelgrade, SerbiaHQ checked Sep 19, 202611-5040 contacts →

Indirect evidence

“Welcome to Unicom Telecom doo page.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceStari Grad, SerbiaHQ checked Sep 19, 202651-20032 contacts →

Indirect evidence

“Contact Centre Outsourcing Services.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceNovi Sad, SerbiaHQ checked Sep 19, 202651-20017 contacts →

Indirect evidence

“Paradox Consulting ist ein dynamisches und erfahrenes Call Center, das Kunden in ganz Europa und weltweit betreut.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceBelgrade, SerbiaHQ checked Sep 19, 202611-5013 contacts →

Indirect evidence

“Get the job done!”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceBelgrade, SerbiaHQ checked Sep 19, 202611-5013 contacts →

Partial evidence

“Our story starts back in 2017 when a team of experienced customer service executives founded Nexus Technology with one goal in mind: Provide the best possible outsourcing service…”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceBelgrade, SerbiaHQ checked Sep 19, 202611-5012 contacts →

Partial evidence

“Worldwide leaders of Customer Experience Management & Business Process Outsourcing.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceBelgrade, SerbiaHQ checked Sep 19, 202651-2004 contacts →

Indirect evidence

“Najbolji softver za kontakt centar zasnovan na oblaku (cloud) koji će vam pomoći da pružite vrhunsku brigu o klijentima.”

Source: RevenueBase Database · checked Sep 19, 2026
11Strong evidenceNovi Sad, SerbiaHQ checked Sep 19, 20261-103 contacts →

Strong evidence

“Creomate, is a developer of solutions for customer service.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceBelgrade, SerbiaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“The world of technology can be fast-paced and scary.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 12 of 30 customer service solution providers based in Serbia

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Customer service solution providers based in Serbia at a glance

As of Sep 19, 2026
19.9%Verified-email coverage
18.0Average contacts per company
11-50Median size (employees)
40.0%Largest-city concentration · Belgrade
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
7
11-50
9
51-200
10
201-500
2
501-1,000
2

Email recency for this list is measured worldwide rather than for Serbia, so it is reported there. Company counts and contact totals on this page are exact for Serbia, over 30 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among customer service solution providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Serbia whose own description of what they do matches “customer service solution providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names customer service solution providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among customer service solution providers, and records with no verified work email. Companies headquartered outside Serbia are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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
Every listed company carries at least one verified work email, 107 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names customer service solution providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many customer service solution providers are there based in Serbia?

RevenueBase identified 30 customer service solution providers headquartered in Serbia as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

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

Which city has the most customer service solution providers?

Belgrade leads with 12 headquartered companies, followed by Novi Sad (8) 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 107 verified decision-maker contacts tracked across these 30 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.