Company lists · Data refreshed September 2026

Top 25 Contact center transformation consultants based in Türkiye

RevenueBase identified 192 contact center transformation consultants headquartered in Türkiye as of September 2026 and tracks 10,196 professional contacts across them, including 2,164 with verified work emails. Istanbul is the largest hub.

This list covers contact center transformation consultants headquartered in Türkiye, 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 27, 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 27, 2026 86% judged on-target in blind review
192Companies
10,196Contacts tracked
2,164Verified emails
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The 25 largest contact center transformation consultants based in Türkiye

Ranked by team size
Top 25 of 192 contact center transformation consultants based in Türkiye, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to contact center transformation consultants: 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
1Indirect evidenceBeyoglu, TürkiyeHQ checked Sep 27, 202610001+6,167 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 20265,001-10,000489 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
3Strong evidenceİstanbul, TürkiyeHQ checked Sep 27, 20261,001-5,000315 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 20261,001-5,000295 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 20261,001-5,000204 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceOstim Osb, TürkiyeHQ checked Sep 27, 2026501-1,000192 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceUmraniye, TürkiyeHQ checked Sep 27, 202610001+175 contacts →

Indirect evidence

“Stratejik Dış kaynak İş Ortağıyız.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceSisli, TürkiyeHQ checked Sep 27, 2026501-1,000111 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
9Strong evidenceBeykoz, TürkiyeHQ checked Sep 27, 20261,001-5,00038 contacts →

Strong evidence

“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.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceAnkara, TürkiyeHQ checked Sep 27, 202651-20033 contacts →

Partial evidence

“Lupe empowers businesses in their digital transformation journey, delivering innovative solutions across 25+ industries with our expert consulting team.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 202611-5030 contacts →

Indirect evidence

“Inera Bilişim İş Analitikleri alanında hizmet veren, yetkin danışman kadrosu ile firmaların ihtiyaçlarını hızlı karşılık verebilen, tüm paydaşları için katma değer yaratmayı…”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceSisli, TürkiyeHQ checked Sep 27, 202611-5030 contacts →

Partial evidence

“Binovist Binovist is an innovative "IT Consultancy" company with many years of expertise and experience offering its customers services in the business solutions field, with a…”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceBeşiktaş, TürkiyeHQ checked Sep 27, 202651-20026 contacts →

Indirect evidence

“In a fast changing world where fortunes are gained and lost faster than ever, transforming your business with technology and analytics are key.”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 20261-1025 contacts →

Indirect evidence

“We understand, design and execute.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 202611-5024 contacts →

Indirect evidence

“Regna Consulting is an experienced Salesforce and SAP Partner about Customer Relationship Management, Customer Experience, C/4HANA, Customer Engagement and Commerce (CEC)…”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceSiirt, TürkiyeHQ checked Sep 27, 2026501-1,00019 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 20261-1015 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceİstanbul, TürkiyeHQ checked Sep 27, 202611-5015 contacts →

Indirect evidence

“Partner Republic is a tech-savvy company and provides data driven customer analytics and journey design solutions to their clients with the best fit technology.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceİstanbul, TürkiyeHQ checked Sep 27, 202611-5012 contacts →

Strong evidence

“CTCOMM, Intelligent Technologies for Secure & Efficient Contact Centers With over 25 years of expertise in telecommunications, IT, call center infrastructures, and voice…”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceYenisehir, TürkiyeHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“2008 Yılında Garanti Eğitim ve Danışmanlık olarak kurulan şirketimiz, global büyüme stratejilerimiz doğrultusunda 2019 yılı itibariyle Expremus olarak hizmet vermeye devam…”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceIstanbul, TürkiyeHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“One Sistem Hizmetleri, önde gelen rekabetçi kurumlara, “Proaktif Çözüm Ortağınız!” ilkesi ile 10 yılı aşkın bir süredir, dijitalleşme konularında danışmanlık ve bilgi…”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceIstanbul, TürkiyeHQ checked Sep 27, 202611-5010 contacts →

Partial evidence

“Labrys is a new breed of consultancy firm, empowering Marketing, CX and IT leaders on Customer Data, AI-assisted MarTech & Digital CX Operating Models and a unified architecture.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceİstanbul, TürkiyeHQ checked Sep 27, 202611-509 contacts →

Indirect evidence

“musterihizmetleri.com" müşterisine önem veren kurumların, özellikle katma değerli hizmet üretimi, hizmette farklılık yaratma ile iş stratejilerini uygulamaya dönüştüren…”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceAtaşehir, TürkiyeHQ checked Sep 27, 20261-108 contacts →

Indirect evidence

“Consult Saga | Eğitim Danışmanlık Limited Şirketi Consult Saga, kurumsal hayattan girişimcilik ekosistemine geçiş sağlayan iki ortak tarafından 20 yılı aşkın tecrübelerini…”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceEsenyurt, TürkiyeHQ checked Sep 27, 20261-108 contacts →

Partial evidence

“We are a one-stop digital transformation company that provides you with a comprehensive package of distinct solutions, which includes Performance Marketing, Search Engine…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 192 contact center transformation consultants based in Türkiye

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Contact center transformation consultants based in Türkiye at a glance

As of Sep 27, 2026
21.2%Verified-email coverage
53.1Average contacts per company
1-10Median size (employees)
45.3%Largest-city concentration · Istanbul
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
97
11-50
58
51-200
18
201-500
2
501-1,000
6
1,001-5,000
8
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 192 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 contact center transformation consultants, 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 Türkiye whose own description of what they do matches “contact center transformation consultants”. 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 contact center transformation consultants), 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 contact center transformation consultants, and records with no verified work email. Companies headquartered outside Türkiye 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, 2,164 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 27, 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.

Contact center transformation consultants by metro

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 contact center transformation consultants, 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 contact center transformation consultants are there based in Türkiye?

RevenueBase identified 192 contact center transformation consultants headquartered in Türkiye 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?

Turkcell Global Bilgi, headquartered in Beyoglu, tops this list with the largest team on record.

Which city has the most contact center transformation consultants?

Istanbul leads with 87 headquartered companies, followed by Sisli (13) and Atasehir (11).

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 2,164 verified decision-maker contacts tracked across these 192 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 27, 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.