Company lists · Data refreshed September 2026

Top 25 Disaster relief organizations worldwide

Name: Disaster relief organizations worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 907 companies tracked

RevenueBase identified 907 disaster relief organizations worldwide as of September 2026 and tracks 102,211 professional contacts across them, including 15,688 with verified work emails and 0 with mobile numbers. The United States is the largest market and Houston the largest hub.

This list covers disaster relief 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 disaster relief 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

907Companies

102,211Contacts tracked

15,688Verified emails

0Mobile numbers

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The 25 largest disaster relief organizations worldwide

Ranked by team size

Top 25 of 907 disaster relief organizations worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to disaster relief 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	American RED Cross	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	10001+	26,563 contacts →
	Indirect evidence “The American Red Cross prevents and alleviates human suffering in the face of emergencies by mobilizing the power of volunteers and the generosity of donors.” Source: RevenueBase Database · checked Sep 19, 2026
2	International Mission Of Mercy IMM	Strong evidence	Morristown, NJ, United StatesHQ checked Sep 19, 2026	n/a	24,886 contacts →
	Strong evidence “International Mission of Mercy (IMM) was founded in 1991 by Satish Mehtani, a veteran of disaster relief missions in Kuwait, Japan and at the World Trade Center following…” Source: RevenueBase Database · checked Sep 19, 2026
3	International Rescue Committee	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	10001+	12,700 contacts →
	Indirect evidence “The International Rescue Committee responds to the world’s worst humanitarian crises and help people to survive, recover, and gain control of their future.” Source: RevenueBase Database · checked Sep 19, 2026
4	Australian RED Cross	Partial evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	1,001-5,000	2,163 contacts →
	Partial evidence “Relief in times of crisis, care when it's needed most and commitment when others turn away.” Source: RevenueBase Database · checked Sep 19, 2026
5	HET Nederlandse Rode Kruis	Indirect evidence	Den Haag, NetherlandsHQ checked Sep 19, 2026	501-1,000	1,539 contacts →
	Indirect evidence “Helping people in need.” Source: RevenueBase Database · checked Sep 19, 2026
6	Team Rubicon	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	n/a	748 contacts →
	Partial evidence “Team Rubicon is a veteran-led humanitarian organization that serves global communities before, during, and after disasters and crises.” Source: RevenueBase Database · checked Sep 19, 2026
7	Malteser International	Partial evidence	Cologne, GermanyHQ checked Sep 19, 2026	501-1,000	706 contacts →
	Partial evidence “Malteser International is the humanitarian relief agency of the Sovereign Order of Malta.” Source: RevenueBase Database · checked Sep 19, 2026
8	Intrado	Indirect evidence	Longmont, CO, United StatesHQ checked Sep 19, 2026	1,001-5,000	483 contacts →
	Indirect evidence “Intrado is dedicated to saving lives and protecting communities, with a mission to provide comprehensive support in preparing for, responding to, and recovering from critical…” Source: RevenueBase Database · checked Sep 19, 2026
9	SBP	Partial evidence	New Orleans, LA, United StatesHQ checked Sep 19, 2026	51-200	340 contacts →
	Partial evidence “SBP is a national social impact organization dedicated to empowering communities to shrink the time between disaster and recovery by rebuilding homes, increasing preparedness and…” Source: RevenueBase Database · checked Sep 19, 2026
10	Core Community Organized Relief Effort	Partial evidence	Los Angeles, United StatesHQ checked Sep 19, 2026	501-1,000	292 contacts →
	Partial evidence “CORE (Community Organized Relief Effort) is a global humanitarian organization that delivers immediate response and long-term recovery solutions to underserved communities across…” Source: RevenueBase Database · checked Sep 19, 2026
11	Kustom US	Partial evidence	Longwood, FL, United StatesHQ checked Sep 19, 2026	501-1,000	268 contacts →
	Partial evidence “Founded in 1968, Kustom is a full-service disaster recovery and restoration contractor.” Source: RevenueBase Database · checked Sep 19, 2026
12	Ceres Environmental Services, INC	Indirect evidence	Sarasota, FL, United StatesHQ checked Sep 19, 2026	201-500	267 contacts →
	Indirect evidence “Founded in 1976, Ceres Environmental Services, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
13	Dolmans	Indirect evidence	Ijsselstein, NetherlandsHQ checked Sep 19, 2026	501-1,000	225 contacts →
	Indirect evidence “Geluk herstellen, dat is wat wij doen!” Source: RevenueBase Database · checked Sep 19, 2026
14	Help Hilfe ZUR Selbsthilfe E. V	Indirect evidence	Bonn, GermanyHQ checked Sep 19, 2026	201-500	210 contacts →
	Indirect evidence “Ever since its inception in 1981, “Help – Hilfe zur Selbsthilfe” has been committed to providing people in need with prompt, sustainable and long-term aid and support.” Source: RevenueBase Database · checked Sep 19, 2026
15	Shelterbox	Partial evidence	Truro, United KingdomHQ checked Sep 19, 2026	51-200	200 contacts →
	Partial evidence “ShelterBox provides emergency shelter and vital supplies to support communities around the world overwhelmed by disaster and humanitarian crisis.” Source: RevenueBase Database · checked Sep 19, 2026
16	Thompson Consulting Services	Partial evidence	Maitland, FL, United StatesHQ checked Sep 19, 2026	51-200	200 contacts →
	Partial evidence “Thompson Consulting Services is a full service emergency response, disaster recovery and grant management consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
17	Action For Humanity	Indirect evidence	Manchester, United KingdomHQ checked Sep 19, 2026	1,001-5,000	198 contacts →
	Indirect evidence “We are Action For Humanity.” Source: RevenueBase Database · checked Sep 19, 2026
18	Caritas India	Partial evidence	New Delhi, IndiaHQ checked Sep 19, 2026	51-200	197 contacts →
	Partial evidence “Caritas India is among the pioneer humanitarian organizations working primarily in the sectors of Disaster Risk Reduction, Natural Resources Management including that of Farmers’…” Source: RevenueBase Database · checked Sep 19, 2026
19	Diakonie Katastrophenhilfe	Indirect evidence	Berlin, GermanyHQ checked Sep 19, 2026	51-200	196 contacts →
	Indirect evidence “Diakonie Katastrophenhilfe (Diakonie Emergency Aid – DKH), a Germany-based international NGO, has been providing humanitarian aid since 1954.” Source: RevenueBase Database · checked Sep 19, 2026
20	ALL Hands & Hearts	Partial evidence	Mattapoisett, MA, United StatesHQ checked Sep 19, 2026	51-200	188 contacts →
	Partial evidence “Mission: All Hands and Hearts effectively and efficiently addresses the immediate and long-term needs of communities impacted by disasters.” Source: RevenueBase Database · checked Sep 19, 2026
21	Islamic Relief USA	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 19, 2026	51-200	167 contacts →
	Partial evidence “Islamic Relief USA™ (IRUSA™) was founded in California in 1993 as a 501 (c)(3) tax exempt charity involved in international humanitarian relief efforts.” Source: RevenueBase Database · checked Sep 19, 2026
22	Joffe Emergency Services	Partial evidence	Santa Monica, CA, United StatesHQ checked Sep 19, 2026	501-1,000	159 contacts →
	Partial evidence “Joffe Emergency Services is an all-in-one provider of emergency response training, event safety, and disaster supplies for individuals, non-profits, small businesses, and…” Source: RevenueBase Database · checked Sep 19, 2026
23	EPIC	Partial evidence	Marietta, GA, United StatesHQ checked Sep 19, 2026	51-200	149 contacts →
	Partial evidence “Epic is the leader in disaster preparedness, response and recovery in the Southeast.” Source: RevenueBase Database · checked Sep 19, 2026
24	UMR	Strong evidence	Mclean, VA, United StatesHQ checked Sep 19, 2026	51-200	149 contacts →
	Strong evidence “UMR is a registered 501 (c)(3) non-profit organization that provides livelihood and disaster relief and recovery services to the underserved, specializing in the Health, WASH…” Source: RevenueBase Database · checked Sep 19, 2026
25	Workforce Group	Strong evidence	Baton Rouge, LA, United StatesHQ checked Sep 19, 2026	501-1,000	145 contacts →
	Strong evidence “The Workforce Group is part of the 1LEMOINE Team of Companies that provides a full suite of services specializing in disaster relief, strategic project planning, rapid staffing…” 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: disaster relief 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 disaster relief organizations.
Partial evidence: Its own public description names part of disaster relief organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name disaster relief 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 907 disaster relief organizations worldwide

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Disaster relief organizations worldwide at a glance

As of Sep 19, 2026

15.3%Verified-email coverage

112.7Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

442

11-50

253

51-200

120

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 disaster relief 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: 7 countries, largest first: the United States, the United Kingdom, Australia, Canada, India, Germany, the Netherlands. Country and city lists for disaster relief organizations are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “disaster relief 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 disaster relief 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 disaster relief 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, 15,688 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.

Disaster relief organizations by location

7 lists · largest first

Every Disaster relief 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 disaster relief 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 disaster relief organizations are there worldwide?

RevenueBase identified 907 disaster relief 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?

American RED Cross, headquartered in Washington, tops this list with the largest team on record.

Which country has the most disaster relief organizations?

The United States leads with 682 companies, followed by the United Kingdom (47) and Australia (41). Every disaster relief organizations list by country and city is linked on this page.

Which city has the most disaster relief organizations?

Houston leads with 23 headquartered companies, followed by New York (20) and London (15).

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 15,688 verified decision-maker contacts tracked across these 907 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.