Company lists · Data refreshed September 2026
Top 25 Pet adoption and rescue service companies worldwide
RevenueBase identified 2,158 pet adoption and rescue service companies worldwide as of September 2026 and tracks 21,605 professional contacts across them, including 5,957 with verified work emails and 0 with mobile numbers. The United States is the largest market and New York the largest hub.
This list covers pet adoption and rescue service companies 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 pet adoption and rescue service companies 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.
The 25 largest pet adoption and rescue service companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 472 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 434 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 429 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 412 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 270 contacts → | ||||
Indirect 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 227 contacts → | ||||
Indirect evidence “Over the past 150+ years, we’ve been busy!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 225 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 175 contacts → | ||||
Partial evidence “At 24Pet, we’re passionate about the well-being of pets and the people who care for them.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 174 contacts → | ||||
Indirect evidence “Since 1944, North Shore Animal League America has been saving the lives of innocent dogs, cats, puppies, and kittens, over to date.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 153 contacts → | ||||
Indirect evidence “Founded in 1879, the Wisconsin Humane Society has been saving the lives of animals in need for nearly 140 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 150 contacts → | ||||
Indirect evidence “Helen Woodward Animal Center is a unique, private, non-profit organization in San Diego County that, for over 50 years, has been committed to the philosophy of people helping…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 150 contacts → | ||||
Indirect evidence “At LifeLine Animal Project, we don’t just run shelters, we’re saving lives.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 148 contacts → | ||||
Indirect evidence “Founded in 1949, the Humane Society of the Pikes Peak Region (HSPPR) is a public 501 (c) 3 nonprofit animal welfare organization dedicated to the care and protection of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 146 contacts → | ||||
Partial evidence “Humane Society Silicon Valley (HSSV) is an independent, 501(c)(3) non-profit animal shelter that has been serving people and pets since 1929.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 136 contacts → | ||||
Partial evidence “The Atlanta Humane Society is a no-kill shelter providing sheltering and adoption, veterinary care, and community outreach.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 136 contacts → | ||||
Indirect evidence “Since 1910 The Lost Dogs’ Home has been a voice for animals without owners.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 135 contacts → | ||||
Partial evidence “The Washington Humane Society and the Washington Animal Rescue League have each served the animals and people of the District of Columbia and the National Capitol region for over…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 132 contacts → | ||||
Indirect evidence “Peninsula Humane Society & SPCA is a private, open-door, not-for-profit animal welfare organization.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 127 contacts → | ||||
Partial evidence “Founded in 1897, Seattle Humane is creating a kinder world for pets and their people through impactful programs and support services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 116 contacts → | ||||
Partial evidence “Pets change our lives.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 113 contacts → | ||||
Partial evidence “For over 125 years, The Animal Rescue League of Boston (ARL) has responded to the needs of animals and the people who care about them.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 113 contacts → | ||||
Strong evidence “Humane Animal Rescue of Pittsburgh (HARP) is one of Pennsylvania’s largest non-profit organizations dedicated to the welfare of animals, pet owners and the community.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 113 contacts → | ||||
Indirect evidence “Lort Smith, Australia’s largest not-for-profit animal hospital, has been an integral part of Melbourne’s compassionate community since 1936.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 110 contacts → | ||||
Indirect evidence “Fondée à Montréal en 1869, la Société Canadienne pour la Prévention de la Cruauté envers les Animaux (maintenant mieux connue sous l’appellation SPCA de Montréal) fut la première…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 109 contacts → | ||||
Indirect evidence “The Nebraska Humane Society was founded in 1875 and is the fifth oldest Humane Society in the United States!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: pet adoption and rescue service companies. 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 pet adoption and rescue service companies.
- Partial evidence
- Its own public description names part of pet adoption and rescue service companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name pet adoption and rescue service companies. 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 2,158 pet adoption and rescue service companies worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,957 reachable decision-makers.
Free signup · no credit card
Pet adoption and rescue service companies worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 pet adoption and rescue service companies, 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
- 6 countries, largest first: the United States, Canada, the United Kingdom, India, Australia, the Netherlands. Country and city lists for pet adoption and rescue service companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “pet adoption and rescue service companies”. 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 pet adoption and rescue service companies), 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 pet adoption and rescue service companies, 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, 5,957 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.
Pet adoption and rescue service companies by location
6 lists · largest firstEvery Pet adoption and rescue service companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Pet adoption and rescue service companies based in the United States1,779
- Pet adoption and rescue service companies based in Canada106
- Pet adoption and rescue service companies based in the United Kingdom96
- Pet adoption and rescue service companies based in India86
- Pet adoption and rescue service companies based in Australia48
- Pet adoption and rescue service companies based in the Netherlands43
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 pet adoption and rescue service companies, 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 pet adoption and rescue service companies are there worldwide?
RevenueBase identified 2,158 pet adoption and rescue service companies 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?
Animal Humane Society, headquartered in Golden Valley, tops this list with the largest team on record.
Which country has the most pet adoption and rescue service companies?
The United States leads with 1,779 companies, followed by Canada (106) and the United Kingdom (96). Every pet adoption and rescue service companies list by country and city is linked on this page.
Which city has the most pet adoption and rescue service companies?
New York leads with 26 headquartered companies, followed by Los Angeles (23) and Houston (18).
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 5,957 verified decision-maker contacts tracked across these 2,158 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.
Ready to reach these companies? Verified emails and direct dials for all 2,158 pet adoption and rescue service companies worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
Browse: Companies home · Lists by location · New lists
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.