Company lists · Data refreshed September 2026

Top 14 Law firms specializing in debt collection companies based in Istanbul, Türkiye

RevenueBase identified 191 law firms specializing in debt collection companies headquartered in Istanbul, Türkiye as of September 2026 and tracks 1,127 professional contacts across them, including 146 with verified work emails. Across Türkiye, Istanbul is the largest hub for this category.

This list covers law firms specializing in debt collection companies headquartered in Istanbul, 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 28, 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 28, 2026 86% judged on-target in blind review
191Companies
1,127Contacts tracked
146Verified emails
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The 14 largest law firms specializing in debt collection companies based in Istanbul, Türkiye

Ranked by team size
Top 14 of 191 law firms specializing in debt collection companies based in Istanbul, Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to law firms specializing in debt collection companies: 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 evidenceIstanbul, TürkiyeHQ checked Sep 28, 202651-200114 contacts →

Partial evidence

“Founded over three decades ago, our firm is one of Istanbul's most venerable law offices, and among the few independent, corporate-structured, full-service, Turkish law firms with…”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 202651-20047 contacts →

Partial evidence

“Pekin Bayar Mizrahi is a leading top-tier law firm located in Istanbul, Turkey.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 202611-5016 contacts →

Partial evidence

“Güleryüz Partners is an Istanbul based full-service law firm, operating on an international scale.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 202611-5015 contacts →

Partial evidence

“DUNDAR SIR Law Firm, together with its team of nearly 30 professionals, is a full-service law firm located in the heart of the business district of Istanbul.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“2007 yılında Av.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“Arıkboğa & Özbey Hukuk Bürosu kurulmuş olduğu 2011 yılından beri Sigorta Hukuku, İş Hukuku, Ticaret Hukuku ve Gayrımenkul Hukuku alanlarında faaliyet göstermektedir.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-106 contacts →

Indirect evidence

“DKB Legal, Didem Kalaycıoğlu Birol tarafından kurulmuş olup, İstanbul merkezli bir hukuk bürosudur.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“Pirşen & Dönmez is a full-service law firm based in Istanbul providing high quality legal services to its local and international clients.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 202611-505 contacts →

Indirect evidence

“We have providing legal services to our clients in sort of areas for more than 35 years and offer the most efficient and appropriate solutions against disputes with our…”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-105 contacts →

Partial evidence

“Dakın Law Firm, with a vast experience in corporate governance and legal services, is based in Istanbul.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Bölten & Kittani Avukatlık Ortaklığı, ortaklarının yıllar içerisinde edindiği tecrübeler ışığında yerli ve yabancı sermayeli müvekkillerine tüm hukuki, finansal ve ticari…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“MCR Hukuk, müvekkillerinin hukuk alanındaki gereksinimlerini doğru tespit etmek, sorunlara pratik çözümler üretmek, bu yolla müvekkilerinin gereksiz masraflar yapmalarını…”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“We are proud of our unwavering pursuit of excellence on behalf of our clients - reflected in the creation of YılmazÜlker, a law firm serving businesses and individuals.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“Kırbıyık Law Firm is a full-service law firm based in İstanbul Turkey.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 14 of 191 law firms specializing in debt collection companies based in Istanbul, Türkiye

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Law firms specializing in debt collection companies based in Istanbul, Türkiye at a glance

As of Sep 28, 2026
13.0%Verified-email coverage
5.9Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
137
11-50
41
51-200
6
201-500
6

Email recency for this list is measured across the whole Türkiye list rather than for Istanbul, so it is reported there. Company counts and contact totals on this page are exact for Istanbul, over 191 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 law firms specializing in debt collection companies, 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 Istanbul, Türkiye whose own description of what they do matches “law firms specializing in debt collection companies”. 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 law firms specializing in debt collection companies), 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 law firms specializing in debt collection companies, and records with no verified work email. Companies headquartered outside Istanbul 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, 146 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 28, 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 law firms specializing in debt collection companies, 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 law firms specializing in debt collection companies are there based in Istanbul, Türkiye?

RevenueBase identified 191 law firms specializing in debt collection companies headquartered in Istanbul, 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?

Hergüner Bilgen Üçer, headquartered in Istanbul, tops this list with the largest team on record.

Which city in Türkiye has the most law firms specializing in debt collection companies?

Istanbul leads Türkiye with 191 headquartered companies, followed by Cankaya (59) and Ankara (46).

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 146 verified decision-maker contacts tracked across these 191 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 28, 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.