Company lists · Data refreshed September 2026

Top 11 International development organizations based in Sri Lanka

RevenueBase identified 36 international development organizations headquartered in Sri Lanka as of September 2026 and tracks 497 professional contacts across them, including 92 with verified work emails. Colombo is the largest hub.

This list covers international development organizations headquartered in Sri Lanka, 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 20, 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 20, 2026 86% judged on-target in blind review
36Companies
497Contacts tracked
92Verified emails
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The 11 largest international development organizations based in Sri Lanka

Ranked by team size
Top 11 of 36 international development organizations based in Sri Lanka, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to international development 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceRajagiriya, Sri LankaHQ checked Sep 20, 2026201-500148 contacts →

Indirect evidence

“MG Consultants (Pvt) Ltd (MGC), established in 1998, is a Sri Lankan based professional consulting firm.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceColombo 7, Sri LankaHQ checked Sep 20, 202651-20066 contacts →

Indirect evidence

“UNDP is the leading United Nations organization fighting to end the injustice of poverty, inequality, and climate change.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceBoralesgamuwa, Sri LankaHQ checked Sep 20, 2026201-50046 contacts →

Indirect evidence

“Sevalanka Foundation is a leading Sri Lankan Non-Governmental Organization that enhances the capacity of disadvantaged rural communities to identify and address their own…”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceColombo, Sri LankaHQ checked Sep 20, 202611-5028 contacts →

Partial evidence

“The Centre for Poverty Analysis is an independent, Sri Lankan think-tank promoting a better understanding of poverty-related development issues.”

Source: RevenueBase Database · checked Sep 20, 2026
5Partial evidenceSri LankaHQ checked Sep 20, 2026501-1,00023 contacts →

Partial evidence

“We are a multi-disciplinary development consultancy company based in Colombo, Sri Lanka.”

Source: RevenueBase Database · checked Sep 20, 2026
6Indirect evidenceDehiwala, Sri LankaHQ checked Sep 20, 202651-20018 contacts →

Indirect evidence

“ADT places its foundations on its vision, Uniting and empowering communities by dynamic action for social peace, public justice and economic sufficiency to transform the nation.”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceColombo, Sri LankaHQ checked Sep 20, 202611-5017 contacts →

Partial evidence

“DevPro is an independent, value driven development consultancy in Sri Lanka, built on Oxfam’s 30-year legacy.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceColombo, Sri LankaHQ checked Sep 20, 202611-5015 contacts →

Indirect evidence

“HELVETAS commenced its work in Sri Lanka in 1978.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceRajagiriya, Sri LankaHQ checked Sep 20, 202611-5014 contacts →

Partial evidence

“The Smallholder Agribusiness Partnerships Programme(SAPP) is implemented by the Presidential Secretariat - Sustainable Development Division”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceColombo, Sri LankaHQ checked Sep 20, 202611-508 contacts →

Partial evidence

“The Adventist Development and Relief Agency (ADRA) is the humanitarian arm of the Seventh- day Adventist church.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceNawala, Sri LankaHQ checked Sep 20, 202611-502 contacts →

Indirect evidence

“IDEAs consultancy has been set up to catalyze the growth of microfinance by bringing in more professionalism in the sector.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 11 of 36 international development organizations based in Sri Lanka

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International development organizations based in Sri Lanka at a glance

As of Sep 20, 2026
18.5%Verified-email coverage
13.8Average contacts per company
11-50Median size (employees)
25.0%Largest-city concentration · Colombo
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
18
51-200
4
201-500
3
501-1,000
1

Email recency for this list is measured worldwide rather than for Sri Lanka, so it is reported there. Company counts and contact totals on this page are exact for Sri Lanka, over 36 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 international development 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.
What qualifies
Companies headquartered in Sri Lanka whose own description of what they do matches “international development 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 international development 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 international development organizations, and records with no verified work email. Companies headquartered outside Sri Lanka 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, 92 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 20, 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 international development 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 international development organizations are there based in Sri Lanka?

RevenueBase identified 36 international development organizations headquartered in Sri Lanka 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?

MG Consultants PVT LTD MGC, headquartered in Rajagiriya, tops this list with the largest team on record.

Which city has the most international development organizations?

Colombo leads with 9 headquartered companies, followed by Trincomalee (3) and Rajagiriya (2).

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 92 verified decision-maker contacts tracked across these 36 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 20, 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.