Company lists · Data refreshed September 2026

Top 25 Customer service solution providers based in Türkiye

RevenueBase identified 139 company matches for customer service solution providers associated with Türkiye as of September 2026 and tracks 11,454 professional contacts across them, including 2,204 with verified work emails. Istanbul is the largest hub.

This list covers company matches for customer service solution providers associated with Türkiye, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
139Companies
11,454Contacts tracked
2,204Verified emails
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The 25 largest customer service solution providers based in Türkiye

Ranked by team size
Top 25 of 139 company matches for customer service solution providers based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBeyoglu, TürkiyeHQ recorded Sep 19, 202610001+6,167 contacts →

Exact match

“Bir Turkcell grup şirketi olarak yılında kurulduğumuzda amacımız hep eşsiz bir müşteri deneyimi yaşatmaktı.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchIstanbul, TürkiyeHQ recorded Sep 19, 20265,001-10,000489 contacts →

Exact match

“Mplus Turkiye, one of Turkey's largest independent outsourcing providers, was founded in in Istanbul.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchİstanbul, TürkiyeHQ recorded Sep 19, 20261,001-5,000315 contacts →

Exact match

“EchoCCS operational and strategic consultancy services such as call center and business process outsourcing services (Call Center Outsourcing, BPO), advanced call center…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Sep 19, 20261,001-5,000295 contacts →

Exact match

“On its journey up to today, ETB GROUP, the foundations of which were laid in 2003, has reached the present, growing with its experience and accumulation knowledge obtained in…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchIstanbul, TürkiyeHQ recorded Sep 19, 20261,001-5,000204 contacts →

Exact match

“Mayen, is a service provider leader in value-added Customer Relationship Management services exceeding over employees located in 12 locations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchOstim Osb, TürkiyeHQ recorded Sep 19, 2026501-1,000192 contacts →

Exact match

“Günümüz teknolojik gelişmeleri ve iletişim kanalları sayesinde son kullanıcılar çok daha hızlı bir şekilde işlemlerini sonlandırabilmektedir.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchİstanbul, TürkiyeHQ recorded Sep 19, 20261,001-5,000176 contacts →

Exact match

“SİTE TELEKOM A.Ş 2010 senesinde kurulan Site Telekom, özel ve kamu sektöründe birçok çağrı merkezi projesine imza atmıştır.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchUmraniye, TürkiyeHQ recorded Sep 19, 202610001+175 contacts →

Exact match

“Stratejik Dış kaynak İş Ortağıyız.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchSisli, TürkiyeHQ recorded Sep 19, 2026501-1,000111 contacts →

Exact match

“İleri düzey satış stratejileri, memnuniyet ve anket hizmetleri, denetim aramaları, hizmet odaklı özel çalışmaları ile sektörde adından söz ettiren Pozitif Kurumsal A.Ş, alt…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchBayrakli, TürkiyeHQ recorded Sep 19, 202651-20092 contacts →

Exact match

“We Are Together”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchIstanbul, TürkiyeHQ recorded Sep 19, 2026n/a78 contacts →

Exact match

“Firmaların arzuladıkları operasyonel mükemmellik, kesintisiz hizmet, maliyet avantajı ve esneklik gibi değerleri sunabilmek vizyonuyla yola çıkan Callpex, son teknoloji altyapısı…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchKagithane, TürkiyeHQ recorded Sep 19, 2026201-50073 contacts →

Exact match

“We are champions for meaningful progress, helping our clients to win, keep and grow their best customers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchGaziemir, TürkiyeHQ recorded Sep 19, 2026201-50060 contacts →

Exact match

“Callart Rehberlik ve Müşteri Hizmetleri, Mayıs 2012'de kurulmuştur.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchAnkara, TürkiyeHQ recorded Sep 19, 202611-5040 contacts →

Exact match

“Decided to develop cloud base Windesk software platform to be used the unified contact center, operational / business process management and ITIL base itsm products and solutions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchBeykoz, TürkiyeHQ recorded Sep 19, 20261,001-5,00038 contacts →

Exact match

“Since 2004, we have been helping customers transform and benchmark their contact centres to be amongst the best in the world using our experienced team and leading technologies.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchKağıthane, TürkiyeHQ recorded Sep 19, 202611-5037 contacts →

Exact match

“Tegsoft is a Contact Center solution both running as on-prem and cloud SaaS, that offers omnichannel customer experience management over communication channels such as phone…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchİstanbul, TürkiyeHQ recorded Sep 19, 202611-5035 contacts →

Exact match

“2007 yılında Çağrı Merkezleri için müşteri temsilcisi temin eden bir İnsan Kaynakları firması olarak hizmet vermeye başladık.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchIzmit, TürkiyeHQ recorded Sep 19, 202651-20031 contacts →

Exact match

“Callaktif offers "Brand Satisfaction Center" services to its clients; being volunteer to be all-inclusive corporate communication solutions provider.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchİstanbul, TürkiyeHQ recorded Sep 19, 202611-5025 contacts →

Exact match

“Most Idea olarak, iş dünyasına sıra dışı çözümler sunarak ve işinize değer katmayı hedefleyerek öne çıkıyoruz.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchSiirt, TürkiyeHQ recorded Sep 19, 2026501-1,00019 contacts →

Exact match

“Ulaknet Call Center is a company based out of Yeni,Necmettin Bilgin Cd.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchPendik, TürkiyeHQ recorded Sep 19, 202611-5017 contacts →

Exact match

“Thanks To The Supsis Live Support System, You Can Respond To Requests From All Communication Channels In A Single Application And Provide Online Support To Your Visitors.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchİzmir, TürkiyeHQ recorded Sep 19, 202611-5017 contacts →

Exact match

“Grispi is a cloud-based customer relationship management platform.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchIstanbul, TürkiyeHQ recorded Sep 19, 202611-5016 contacts →

Exact match

“VOYCE Contact Center is a comprehensive software designed to optimize your call center operations and enhance customer experience.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchKonya, TürkiyeHQ recorded Sep 19, 202651-20016 contacts →

Exact match

“iMA Contact is een, met meer dan 17 jaar ervaring in het bieden van uitstekende klantenservice.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchIstanbul, TürkiyeHQ recorded Sep 19, 20261-1015 contacts →

Exact match

“One vendor for all your needs Let us transform your organization to be ready for digital with the world's A-class solutions at the most affordable costs.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 139 customer service solution providers based in Türkiye

See the full list, filter by size, metro and specialty, and access 2,204 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customer service solution providers based in Türkiye at a glance

As of Sep 19, 2026
19.2%Verified-email coverage
82.4Average contacts per company
11-50Median size (employees)
43.9%Largest-city concentration · Istanbul
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
28
11-50
56
51-200
21
201-500
11
501-1,000
7
1,001-5,000
13
5,001-10,000
1
10001+
2

Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 139 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Türkiye whose business descriptions match “customer service solution providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,204 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “customer service solution providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 139 company matches for customer service solution providers associated with Türkiye as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Turkcell Global Bilgi tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most customer service solution providers?

Istanbul leads with 61 company records, followed by Izmir (7) and Sisli (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,204 professional contacts with verified work emails tracked across these 139 companies; direct dials are available where recorded.

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 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.