Company lists · Data refreshed September 2026

Top 10 Retail customer service outsourcing companies based in Greece

RevenueBase identified 36 retail customer service outsourcing companies headquartered in Greece as of September 2026 and tracks 1,934 professional contacts across them, including 393 with verified work emails and 14 with mobile numbers. Athens is the largest hub.

This list covers retail customer service outsourcing companies headquartered in Greece, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
36Companies
1,934Contacts tracked
393Verified emails
14Mobile numbers
Explore all 36 companies → Free signup · no credit card · 500 free credits

The 10 largest retail customer service outsourcing companies based in Greece

Ranked by team size
Top 10 of 36 retail customer service outsourcing companies based in Greece, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names retail customer service outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Cosmote EvalueIndirect evidence
Athens, GreeceHQ checked Sep 5, 20265,001-10,0001,235

“Empowering growth.”

Source: company website · checked Sep 5, 2026
2
BFS GroupIndirect evidence
Athens, GreeceHQ checked Sep 5, 2026501-1,00076

“BFS Group was founded in 1994 after absorbing Centronet Company.”

Source: company website · checked Sep 5, 2026
3
TelecroftIndirect evidence
Athens, GreeceHQ checked Sep 5, 2026201-50055

“Inbound, outbound, no boundaries”

Source: company website · checked Sep 5, 2026
4Kalamaki, GreeceHQ checked Sep 5, 2026201-50034

“iCall is a fully devolped Contact Center, offering innovative Customer Relationship & Experience Management services, through advanced technological infrastructure and modern…”

Source: company website · checked Sep 5, 2026
5
Othisi SAStrong evidence
Athens, GreeceHQ checked Sep 5, 2026201-50032

“At OTHISI SA, we are redefining the future of customer engagement and business process outsourcing.”

Source: company website · checked Sep 5, 2026
6
TeleraisePartial evidence
GreeceHQ checked Sep 5, 202651-20018

“TELERAISE IKE is is an integrated Contact Center that offers customer relationship management, customer development and sales promotion services.”

Source: company website · checked Sep 5, 2026
7Thessaloniki, GreeceHQ checked Sep 5, 202611-509

“Στην Τηλεγραμματεία beeasy oι επαγγελματίες γραμματείς- τηλεφωνητές μας βρίσκονται στο τηλεφωνικό κέντρο από Δευτέρα έως Παρασκευή και από 09.00 – 21.00, για να απαντήσουν τις…”

Source: company website · checked Sep 5, 2026
8
Inss LTDPartial evidence
Attica, GreeceHQ checked Sep 5, 202611-508

“Η INSS LTD είναι μια εταιρεία που δραστηριοποιείται με την παροχή ολοκληρωμένων υπηρεσιών outsourcing σε Χρηματοπιστωτικούς Οργανισμούς, Εταιρείες Τηλεπικοινωνιών Μεγάλες…”

Source: company website · checked Sep 5, 2026
9
SK Group GRPartial evidence
Thessaloniki, GreeceHQ checked Sep 5, 2026201-5008

“ΥΠΗΡΕΣΙΕΣ ΓΙΑ ΕΤΑΙΡΕΙΕΣ Εξυπηρέτηση Πελατών (Customer Care)| Τηλεφωνική Υποστήριξη (Help Desk)| Υποστήριξη Διαφημιστικής Καμπάνιας | Έρευνα Αγοράς | Αξιολόγηση Προϊόντων &…”

Source: company website · checked Sep 5, 2026
10
HellascallPartial evidence
Kallithéa, GreeceHQ checked Sep 5, 202611-504

“Hellascall was founded with a strategic goal of rapid growth in the field of Customer Relationship Management and Development on behalf of banking institutions, telecommunications…”

Source: company website · checked Sep 5, 2026

Showing 10 of 36 retail customer service outsourcing companies based in Greece

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Retail customer service outsourcing companies based in Greece at a glance

As of Sep 5, 2026
51-200Median size (employees)
AthensLargest hub · 7 HQs
14Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
3
11-50
11
51-200
10
201-500
7
501-1,000
2
1,001-5,000
2
5,001-10,000
1

Verified emails by last verification

0–30
378
31–60
15
61–90
0
90–180
0
180+
0

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 retail customer service outsourcing companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Greece whose own description of what they do matches “retail customer service outsourcing companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among retail customer service outsourcing companies, and records with no verified work email. Companies headquartered outside Greece 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 an evidence 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, 393 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 5, 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

How many retail customer service outsourcing companies are there based in Greece?

RevenueBase identified 36 retail customer service outsourcing companies headquartered in Greece 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?

Cosmote Evalue, headquartered in Greece, tops this list with the largest team on record.

Which city has the most retail customer service outsourcing companies?

Athens leads with 7 headquartered companies, followed by Kalamaria (2) and Thessaloniki (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 393 verified decision-maker contacts tracked across these 36 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 5, 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 SmartSearch, 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.