Company lists · Data refreshed September 2026

Top 25 Animal welfare nonprofits worldwide

Name: Animal welfare nonprofits worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 4,885 companies tracked

RevenueBase identified 4,885 animal welfare nonprofits worldwide as of September 2026 and tracks 51,141 professional contacts across them, including 14,557 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers animal welfare nonprofits 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 animal welfare nonprofits 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

4,885Companies

51,141Contacts tracked

14,557Verified emails

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The 25 largest animal welfare nonprofits worldwide

Ranked by team size

Top 25 of 4,885 animal welfare nonprofits worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to animal welfare nonprofits: 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	RSPCA	Indirect evidence	Horsham, United KingdomHQ checked Sep 19, 2026	1,001-5,000	2,027 contacts →
	Indirect evidence “We’re here for every kind, through rescue and rehab, advocacy, education and prevention.” Source: RevenueBase Database · checked Sep 19, 2026
2	ASPCA	Strong evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	1,315 contacts →
	Strong evidence “The ASPCA (The American Society for the Prevention of Cruelty to Animals) is the first animal welfare organization established in North America and serves as the nation’s leading…” Source: RevenueBase Database · checked Sep 19, 2026
3	Dogs Trust	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,170 contacts →
	Partial evidence “We're the UK's largest dog welfare charity #ADogIsForLife, not just for Christmas®” Source: RevenueBase Database · checked Sep 19, 2026
4	Best Friends Animal Society	Strong evidence	Kanab, UT, United StatesHQ checked Sep 19, 2026	501-1,000	956 contacts →
	Strong evidence “Best Friends Animal Society is the leading animal welfare organization working to end the killing of dogs and cats in America’s shelters by 2025.” Source: RevenueBase Database · checked Sep 19, 2026
5	Humane World For Animals	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	501-1,000	873 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
6	PETA	Partial evidence	Norfolk, VA, United StatesHQ checked Sep 19, 2026	201-500	592 contacts →
	Partial evidence “People for the Ethical Treatment of Animals (PETA) entities have more than 10.4 million members and supporters globally, and PETA U.S.” Source: RevenueBase Database · checked Sep 19, 2026
7	Four Paws	Strong evidence	Vienna, AustriaHQ checked Sep 19, 2026	501-1,000	535 contacts →
	Strong evidence “FOUR PAWS is the global animal welfare organisation for animals under direct human influence, which reveals suffering, rescues animals in need and protects them.” Source: RevenueBase Database · checked Sep 19, 2026
8	Battersea	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	531 contacts →
	Indirect evidence “Battersea is here for every dog and cat, and has been since 1860.” Source: RevenueBase Database · checked Sep 19, 2026
9	Mspca-Angell	Strong evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	201-500	502 contacts →
	Strong evidence “The mission of the Massachusetts Society for the Prevention of Cruelty to Animals is to protect animals, relieve their suffering, advance their health and welfare, prevent…” Source: RevenueBase Database · checked Sep 19, 2026
10	LA Société Protectrice DES Animaux SPA	Partial evidence	Paris, FranceHQ checked Sep 19, 2026	501-1,000	472 contacts →
	Partial evidence “La Société Protectrice des Animaux (SPA) est la première association de protection animale en France.” Source: RevenueBase Database · checked Sep 19, 2026
11	Animal Humane Society	Partial evidence	Golden Valley, MN, United StatesHQ checked Sep 19, 2026	201-500	472 contacts →
	Partial evidence “Every year, Animal Humane Society provides direct care and services to help more than animals in need across Minnesota.” Source: RevenueBase Database · checked Sep 19, 2026
12	DE Dierenbescherming	Indirect evidence	The Hague, NetherlandsHQ checked Sep 19, 2026	201-500	445 contacts →
	Indirect evidence “De Dierenbescherming is met een achterban van bijna mensen (leden, donateurs en vrijwilligers) de grootste organisatie in Nederland die opkomt voor de belangen van alle dieren.” Source: RevenueBase Database · checked Sep 19, 2026
13	SAN Diego Humane Society	Strong evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	501-1,000	434 contacts →
	Strong evidence “San Diego Humane Society, an open-admission shelter, is creating a more humane world by inspiring compassion and advancing the welfare of animals and people.” Source: RevenueBase Database · checked Sep 19, 2026
14	Blue Cross UK	Indirect evidence	Burford, United KingdomHQ checked Sep 19, 2026	501-1,000	429 contacts →
	Indirect evidence “We are a charity that provides specialist care, services, and support for pets and people throughout their life together.” Source: RevenueBase Database · checked Sep 19, 2026
15	Pawzz Foundation	Strong evidence	Gurgaon, IndiaHQ checked Sep 19, 2026	n/a	412 contacts →
	Strong evidence “Pawzz is an animal welfare organization that provides food, medical assistance, rescue operations, temporary shelters and sterilisation drives for stray animals.” Source: RevenueBase Database · checked Sep 19, 2026
16	Rspca Queensland	Strong evidence	Wacol, AustraliaHQ checked Sep 19, 2026	201-500	326 contacts →
	Strong evidence “RSPCA QLD - The Royal Society for the Prevention of Cruelty to Animals Queensland, is the state’s oldest, largest and leading animal welfare charity, dedicated to improving the…” Source: RevenueBase Database · checked Sep 19, 2026
17	BC Spca	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	501-1,000	297 contacts →
	Indirect evidence “The BC SPCA was established over 125 years ago and we continue to grow stronger every year.” Source: RevenueBase Database · checked Sep 19, 2026
18	Spca NEW Zealand	Partial evidence	New Lynn, New ZealandHQ checked Sep 19, 2026	51-200	296 contacts →
	Partial evidence “SPCA New Zealand provides care and protection to animals across New Zealand - animals that have been the victims of abuse, cruelty, neglect or abandonment.” Source: RevenueBase Database · checked Sep 19, 2026
19	World Animal Protection	Partial evidence	London, United KingdomHQ checked Sep 19, 2026	201-500	276 contacts →
	Partial evidence “At World Animal Protection, we are a global organisation dedicated to ending the exploitation of animals.” Source: RevenueBase Database · checked Sep 19, 2026
20	SAN Francisco Spca	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	201-500	270 contacts →
	Partial evidence “At the San Francisco SPCA we envision a world in which the love people share with animals uplifts humanity to a state of greater compassion.” Source: RevenueBase Database · checked Sep 19, 2026
21	Oregon Humane	Indirect evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	201-500	227 contacts →
	Indirect evidence “Over the past 150+ years, we’ve been busy!” Source: RevenueBase Database · checked Sep 19, 2026
22	Paws Chicago	Strong evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	225 contacts →
	Strong evidence “PAWS Chicago is one of the nation’s largest comprehensive No Kill animal welfare organizations, building innovative programs to end the killing of homeless pets.” Source: RevenueBase Database · checked Sep 19, 2026
23	Rspca Australia	Partial evidence	Deakin West, AustraliaHQ checked Sep 19, 2026	n/a	225 contacts →
	Partial evidence “The RSPCA is an independent, community-based charity providing animal care and protection services across the country.” Source: RevenueBase Database · checked Sep 19, 2026
24	Rspca NSW	Partial evidence	Yagoona, AustraliaHQ checked Sep 19, 2026	201-500	219 contacts →
	Partial evidence “The RSPCA is the voice for the animals of Australia.” Source: RevenueBase Database · checked Sep 19, 2026
25	Mercy For Animals	Partial evidence	West Hollywood, CA, United StatesHQ checked Sep 19, 2026	51-200	202 contacts →
	Partial evidence “Mercy For Animals believes that a humane society is possible.” 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: animal welfare nonprofits. 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 animal welfare nonprofits.
Partial evidence: Its own public description names part of animal welfare nonprofits, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name animal welfare nonprofits. 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 4,885 animal welfare nonprofits worldwide

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Animal welfare nonprofits worldwide at a glance

As of Sep 19, 2026

28.5%Verified-email coverage

10.5Average contacts per company

1-10Median size (employees)

0.9%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

2,952

11-50

1,360

51-200

401

201-500

501-1,000

1,001-5,000

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 animal welfare nonprofits, 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 animal welfare nonprofits are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “animal welfare nonprofits”. 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 animal welfare nonprofits), 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 animal welfare nonprofits, 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, 14,557 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.

Animal welfare nonprofits by location

14 lists · largest first

Every Animal welfare nonprofits 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 animal welfare nonprofits, 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 animal welfare nonprofits are there worldwide?

RevenueBase identified 4,885 animal welfare nonprofits 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?

RSPCA, headquartered in Horsham, tops this list with the largest team on record.

Which country has the most animal welfare nonprofits?

The United States leads with 2,451 companies, followed by India (263) and the United Kingdom (192). Every animal welfare nonprofits list by country and city is linked on this page.

Which city has the most animal welfare nonprofits?

New York leads with 42 headquartered companies, followed by London (36) and Los Angeles (32).

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 14,557 verified decision-maker contacts tracked across these 4,885 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.