Company lists · Data refreshed November 2026

Top 25 International cooperation services based in the United States

RevenueBase identified 248 company matches for international cooperation services associated with the United States as of November 2026 and tracks 52,745 professional contacts across them, including 15,812 with verified work emails. Washington is the largest hub.

This list covers company matches for international cooperation services associated with the United States, 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 November 6, 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 Nov 6, 2026 How this list was built
248Companies
52,745Contacts tracked
15,812Verified emails
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The 25 largest international cooperation services based in the United States

Ranked by team size
Top 25 of 248 company matches for international cooperation services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchWashington, DC, United StatesHQ recorded Nov 6, 202610001+18,146 contacts →

Exact match

“The World Bank is a vital source of financial and technical assistance to developing countries around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026501-1,0001,255 contacts →

Exact match

“The Asia Foundation is an international nonprofit organization working to solve the toughest social and economic challenges in Asia and the Pacific.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchArlington, VA, United StatesHQ recorded Nov 6, 2026501-1,000781 contacts →

Exact match

“Blumont is a global organization working with communities around the world to help people overcome challenges and create a foundation for progress.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026201-500623 contacts →

Exact match

“Counterpart partners with local organizations around the world to build sustainable communities in which people thrive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026201-500411 contacts →

Exact match

“The Pan American Development Foundation (PADF) has been driving positive change across Latin America and the Caribbean for over 63 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026501-1,000271 contacts →

Exact match

“Corus International is an ensemble of long-serving, global leaders in international development and humanitarian assistance committed to ending poverty and building healthy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026n/a255 contacts →

Exact match

“When it comes to changing the world, no one can do it alone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-200223 contacts →

Exact match

“Results for Development (R4D) is a leading non-profit global development partner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchArlington, VA, United StatesHQ recorded Nov 6, 202651-200200 contacts →

Exact match

“Social Impact is a global development management consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-200185 contacts →

Exact match

“IESC is a leading U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchVienna, VA, United StatesHQ recorded Nov 6, 2026201-500171 contacts →

Exact match

“Integrated Business & Technical Consultants Inc.(IBTCI), a U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026n/a159 contacts →

Exact match

“The Aga Khan Foundation is a leading global development organization working to tackle the root causes of poverty.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026n/a153 contacts →

Exact match

“Tanager, an affiliate of ACDI/VOCA, is an international nonprofit that brings people together at the table, on the ground, and across supply chains to co-create economic and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSilver Spring, MD, United StatesHQ recorded Nov 6, 2026201-500148 contacts →

Exact match

“Panagora Group is a woman- and employee-owned social enterprise dedicated to high-impact international development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Nov 6, 20261,001-5,000147 contacts →

Exact match

“El PNUD se asocia con personas de todos los niveles de la sociedad para ayudar a construir naciones que puedan resistir las crisis e impulsar y sostener el tipo de crecimiento que…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“Kaizen, a Tetra Tech company, offers an alternative approach to development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNY, United StatesHQ recorded Nov 6, 202611-50133 contacts →

Exact match

“Concordia is a registered 501(c)(3) nonprofit organization that enables public-private partnerships to create a more prosperous and sustainable future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“On August 1, 2021, Dexis Consulting Group (Dexis) and its wholly owned subsidiary Checchi and Company Consulting, Inc.(Checchi) were consolidated.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“OIC International (OICI) is a non-profit organization headquartered in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchArlington, VA, United StatesHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“IBI is an international economic development consulting firm whose main client is the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchArlington, VA, United StatesHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“International Development Group LLC (IDG) is a rapidly growing U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-200110 contacts →

Exact match

“Eurasia Foundation is a nonprofit international development organization committed to the idea that societies function best when people take responsibility for their own civic and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202611-50102 contacts →

Exact match

“The Millennium Promise Alliance, Inc.(MPA) is an international non-governmental organization, not-for-profit organization in consultative status with the United Nations Economic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchArlington, VA, United StatesHQ recorded Nov 6, 202611-5079 contacts →

Exact match

“J.E.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBethesda, MD, United StatesHQ recorded Nov 6, 2026201-50070 contacts →

Exact match

“ZemiTek, LLC is a small, woman-owned professional services firm based in the Washington, DC metro area, providing tailored and innovative solutions to federal clients nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 248 international cooperation services based in the United States

See the full list, filter by size, metro and specialty, and access 15,812 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International cooperation services based in the United States at a glance

As of Nov 6, 2026
30.0%Verified-email coverage
212.7Average contacts per company
1-10Median size (employees)
14.1%Largest-city concentration · Washington
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
139
11-50
58
51-200
22
201-500
12
501-1,000
9
1,001-5,000
3
5,001-10,000
1
10001+
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 248 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 the United States whose business descriptions match “international cooperation services” 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 15,812 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 November 6, 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 “international cooperation services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international cooperation services are there based in the United States?

RevenueBase identified 248 company matches for international cooperation services associated with the United States as of November 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?

The World Bank tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most international cooperation services?

Washington leads with 35 company records, followed by New York (26) and Arlington (13).

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 15,812 professional contacts with verified work emails tracked across these 248 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 November 6, 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.