Company lists · Data refreshed September 2026

Top 25 Anti-corruption organizations worldwide

Name: Anti-corruption organizations worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,453 companies tracked

RevenueBase identified 1,453 anti-corruption organizations worldwide as of September 2026 and tracks 19,566 professional contacts across them, including 4,259 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers anti-corruption organizations worldwide, 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 19, 2026. Country and city lists for anti-corruption organizations follow the table.

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 19, 2026 86% judged on-target in blind review

1,453Companies

19,566Contacts tracked

4,259Verified emails

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The 25 largest anti-corruption organizations worldwide

Ranked by team size

Top 25 of 1,453 anti-corruption organizations worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to anti-corruption organizations: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Badan Pengawasan Keuangan DAN Pembangunan	Indirect evidence	Jakarta Timur, IndonesiaHQ checked Sep 19, 2026	5,001-10,000	1,502 contacts →
	Indirect evidence “Visi BPKP: Auditor Presiden yang responsif, interaktif, dan terpercaya untuk mewujudkan akuntabilitas keuangan negara yang berkualitas.” Source: RevenueBase Database · checked Sep 19, 2026
2	Transparency International Bangladesh TIB	Indirect evidence	Dhaka, BangladeshHQ checked Sep 19, 2026	201-500	434 contacts →
	Indirect evidence “Transparency International Bangladesh (TIB), accredited national chapter of Berlin-based Transparency International (TI).” Source: RevenueBase Database · checked Sep 19, 2026
3	Transparency International	Partial evidence	Berlin, GermanyHQ checked Sep 19, 2026	51-200	411 contacts →
	Partial evidence “Transparency International is a global movement working in over 100 countries to end the injustice of corruption.” Source: RevenueBase Database · checked Sep 19, 2026
4	Komisi Pemberantasan Korupsi	Indirect evidence	United StatesHQ checked Sep 19, 2026	5,001-10,000	386 contacts →
	Indirect evidence “Dibentuk berdasarkan Undang-Undang Nomor 30 Tahun 2002 tentang Komisi Pemberantasan Tindak Pidana Korupsi, Komisi Pemberantasan Korupsi (KPK) diberi amanat melakukan pemberantasan…” Source: RevenueBase Database · checked Sep 19, 2026
5	Government Accountability Project	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	n/a	227 contacts →
	Indirect evidence “Government Accountability Project is the nation’s leading whistleblower protection and advocacy organization.” Source: RevenueBase Database · checked Sep 19, 2026
6	Common Cause	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	217 contacts →
	Indirect evidence “Common Cause is a nonpartisan, grassroots organization dedicated to restoring the core values of American democracy, reinventing an open, honest and accountable government that…” Source: RevenueBase Database · checked Sep 19, 2026
7	Open Government Partnership	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	167 contacts →
	Indirect evidence “The Open Government Partnership (OGP) is a multi-stakeholder initiative focused on improving government transparency, accountability and people's participation.” Source: RevenueBase Database · checked Sep 19, 2026
8	Praja Foundation	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	n/a	151 contacts →
	Indirect evidence “Praja is a non-partisan organisation enabling accountable governance.” Source: RevenueBase Database · checked Sep 19, 2026
9	Accountability LAB	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	149 contacts →
	Indirect evidence “Our vision is a world in which people with power are accountable.” Source: RevenueBase Database · checked Sep 19, 2026
10	AVAAZ	Indirect evidence	York, United StatesHQ checked Sep 19, 2026	51-200	145 contacts →
	Indirect evidence “Avaaz - meaning "voice" in several European, Middle Eastern and Asian languages - launched in 2007 with a simple democratic mission: organise citizens of all nations to close the…” Source: RevenueBase Database · checked Sep 19, 2026
11	Basel Institute On Governance	Partial evidence	Basel, SwitzerlandHQ checked Sep 19, 2026	51-200	133 contacts →
	Partial evidence “The Basel Institute on Governance is an independent centre of expertise dedicated to advancing good governance and countering corruption.” Source: RevenueBase Database · checked Sep 19, 2026
12	Public And Private Development Centre Ppdc	Indirect evidence	Abuja, NigeriaHQ checked Sep 19, 2026	51-200	127 contacts →
	Indirect evidence “The Public and Private Development Centre (PPDC) is a non-governmental organisation and social enterprise driven by the desire to have a more transparent and accountable…” Source: RevenueBase Database · checked Sep 19, 2026
13	The Organized Crime And Corruption Reporting Project	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	51-200	119 contacts →
	Partial evidence “The Organized Crime and Corruption Reporting Project (OCCRP) is a nonprofit investigative news reporting platform for independent media outlets around the world, publishing more…” Source: RevenueBase Database · checked Sep 19, 2026
14	Follow The Money NL	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 19, 2026	51-200	119 contacts →
	Indirect evidence “Follow the Money is een journalistieke beweging met een glashelder doel: het blootleggen van financiële misstanden die schade toebrengen aan de samenleving.” Source: RevenueBase Database · checked Sep 19, 2026
15	Consejo Para LA Transparencia	Indirect evidence	Santiago, ChileHQ checked Sep 19, 2026	51-200	114 contacts →
	Indirect evidence “Contribuir a fortalecer la democracia en Chile a través de la rendición de cuentas y el control social, al garantizar el derecho de acceso a la información pública, la…” Source: RevenueBase Database · checked Sep 19, 2026
16	International Budget Partnership	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	51-200	85 contacts →
	Indirect evidence “The International Budget Partnership collaborates with civil society organizations around the world to improve governance and ensure that scarce public resources are used…” Source: RevenueBase Database · checked Sep 19, 2026
17	Trace International, INC	Partial evidence	Annapolis, MD, United StatesHQ checked Sep 19, 2026	11-50	80 contacts →
	Partial evidence “TRACE is a non-profit international business association dedicated to anti-bribery, compliance and good governance.” Source: RevenueBase Database · checked Sep 19, 2026
18	Judicial Watch	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	11-50	73 contacts →
	Indirect evidence “Judicial Watch, Inc, a conservative, non-partisan educational foundation, promotes transparency, accountability and integrity in government, politics and the law.” Source: RevenueBase Database · checked Sep 19, 2026
19	Corporación Transparencia POR Colombia	Indirect evidence	Bogota, ColombiaHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “Transparencia por Colombia es una organización sin ánimo de lucro creada en 1998, cuya misión es "liderar desde la sociedad civil la lucha integral contra la corrupción y por la…” Source: RevenueBase Database · checked Sep 19, 2026
20	International Consortium Of Investigative Journalists Icij	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	11-50	72 contacts →
	Indirect evidence “The International Consortium of Investigative Journalists tells stories that show how the world really works, triggering positive change.” Source: RevenueBase Database · checked Sep 19, 2026
21	Libera Associazioni Nomi E Numeri Contro LE Mafie	Indirect evidence	Roma, ItalyHQ checked Sep 19, 2026	11-50	70 contacts →
	Indirect evidence “Libera.” Source: RevenueBase Database · checked Sep 19, 2026
22	Transparency International Kenya	Partial evidence	Nairobi, KenyaHQ checked Sep 19, 2026	11-50	70 contacts →
	Partial evidence “Transparency International is a non governmental organization dedicated to increasing government accountability and curbing both international and national corruption.” Source: RevenueBase Database · checked Sep 19, 2026
23	Project On Government Oversight	Partial evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	11-50	64 contacts →
	Partial evidence “Founded in 1981, the Project On Government Oversight (POGO) is an independent nonprofit that investigates and exposes corruption and other misconduct in order to achieve a more…” Source: RevenueBase Database · checked Sep 19, 2026
24	Autorità Nazionale Anticorruzione	Indirect evidence	Rome, ItalyHQ checked Sep 19, 2026	201-500	60 contacts →
	Indirect evidence “L’Anac è un’autorità amministrativa indipendente la cui missione istituzionale è individuata nell’azione di prevenzione della corruzione in tutti gli ambiti dell’attività…” Source: RevenueBase Database · checked Sep 19, 2026
25	Association Of Certified Financial Crime Specialists - Acfcs	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 19, 2026	11-50	59 contacts →
	Indirect evidence “The Association of Certified Financial Crime Specialists (ACFCS) is a worldwide organization for private and public sector professionals who work in diverse financial crime…” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: anti-corruption organizations. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names anti-corruption organizations.
Partial evidence: Its own public description names part of anti-corruption organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name anti-corruption organizations. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,453 anti-corruption organizations worldwide

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Anti-corruption organizations worldwide at a glance

As of Sep 19, 2026

21.8%Verified-email coverage

13.5Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · Washington

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

740

11-50

446

51-200

146

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 anti-corruption organizations, 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.
Coverage: Every country. Country and city lists for anti-corruption organizations are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “anti-corruption organizations”. 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 anti-corruption organizations), 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 anti-corruption organizations, and records with no verified work email.
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, 4,259 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 19, 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.

Anti-corruption organizations by location

9 lists · largest first

Every Anti-corruption organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 anti-corruption organizations, 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 anti-corruption organizations are there worldwide?

RevenueBase identified 1,453 anti-corruption organizations worldwide 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?

Badan Pengawasan Keuangan DAN Pembangunan, headquartered in Jakarta, tops this list with the largest team on record.

Which country has the most anti-corruption organizations?

The United States leads with 150 companies, followed by Brazil (102) and India (63). Every anti-corruption organizations list by country and city is linked on this page.

Which city has the most anti-corruption organizations?

Washington leads with 43 headquartered companies, followed by London (29) and Sao Paulo (29).

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 4,259 verified decision-maker contacts tracked across these 1,453 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 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 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.