Company lists · Data refreshed September 2026

Top 15 Operations outsourcing companies based in Türkiye

RevenueBase identified 63 company matches for operations outsourcing companies associated with Türkiye as of September 2026 and tracks 9,740 professional contacts across them, including 2,012 with verified work emails. Istanbul is the largest hub.

This list covers company matches for operations outsourcing companies 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 21, 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 21, 2026 How this list was built
63Companies
9,740Contacts tracked
2,012Verified emails
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The 15 largest operations outsourcing companies based in Türkiye

Ranked by team size
Top 15 of 63 company matches for operations outsourcing companies based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 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 21, 2026 · View company records in RevenueBase
2Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchİstanbul, TürkiyeHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 2026201-500117 contacts →

Exact match

“CottGroup® is a holistic service organization that offers a full range of consulting, outsourcing, technology, and training services to manage operations and provide practical…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchBayrakli, TürkiyeHQ recorded Sep 21, 202651-20092 contacts →

Exact match

“We Are Together”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchKuzguncuk, TürkiyeHQ recorded Sep 21, 20265,001-10,00059 contacts →

Exact match

“YK Holding olarak 1996’dan bugüne birçok işletmeye sunduğumuz OUTSOURCING hizmetleriyle sektörde güçlü, güvenilir ve bilinen bir markayız.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchBeykoz, TürkiyeHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
10Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 20261,001-5,00015 contacts →

Exact match

“2002 yılında İstanbul’da kurulan Tempo BPO, müşteri deneyimi yönetimi ve bilgi teknolojileri alanlarında hizmet veren iş süreçleri dış kaynak firmasıdır.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchİzmir, TürkiyeHQ recorded Sep 21, 202651-20010 contacts →

Exact match

“As "Customer Care Global" we are a leading company in the customer care and IT services sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchİstanbul, TürkiyeHQ recorded Sep 21, 202651-2006 contacts →

Exact match

“Creafone powers the growth of disruptive startups by delivering tailored outsourcing solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchIstanbul, TürkiyeHQ recorded Sep 21, 202611-506 contacts →

Exact match

“Kuruluş Felsefesini “Müşteri Odaklı Hizmet Anlayışı” olarak belirlemiş olan kurumumuz, Çağrı Merkezi alanında Dış Kaynak Kullanım Hizmetleri, Çağrı Merkezi Kurulum ve…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchEsenyurt, TürkiyeHQ recorded Sep 21, 2026201-5003 contacts →

Exact match

“ESS Kurumsal Destek ve Çözüm Hizmetleri olarak, müşterilerimize iş süreçlerinde esneklik sağlamak için İn-House ve Out-House çözümleri birlikte sunuyoruz.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchİstanbul, TürkiyeHQ recorded Sep 21, 202611-502 contacts →

Exact match

“Trius Bilişim Teknolojileri olarak, kurumsal şirketlerin danışmanlık,dış kaynak sağlama, iş süreçlerini planlama, operasyonel ihtiyaçlarını karşılama ve yazılım geliştirme…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 15 of 63 operations outsourcing companies based in Türkiye

See the full list, filter by size, metro and specialty, and access 2,012 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Operations outsourcing companies based in Türkiye at a glance

As of Sep 21, 2026
20.7%Verified-email coverage
154.6Average contacts per company
11-50Median size (employees)
47.6%Largest-city concentration · Istanbul
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
24
51-200
12
201-500
6
501-1,000
2
1,001-5,000
8
5,001-10,000
2
10001+
1

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 63 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 “operations outsourcing companies” 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 2,012 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 21, 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 “operations outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many operations outsourcing companies are there based in Türkiye?

RevenueBase identified 63 company matches for operations outsourcing companies 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 operations outsourcing companies?

Istanbul leads with 30 company records, followed by Izmir (3) and Sisli (3).

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 2,012 professional contacts with verified work emails tracked across these 63 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 21, 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.