1. Directory of nonprofits
  2. Categories
  3. Animal organizations
  4. Animal shelters

Animal shelters and animal welfare organizations

There are 29,237 animal shelters in the United States. Combined, these animal shelters employ 85,710 people, earn more than $8 billion in revenue each year, and have assets of $16 billion.
Skip to:
Related directory pages:

Job trends for Animal shelters

Employees per organizationNumber of organizations
0
 
3,490
1-10
 
1,327
11-25
 
937
26-100
 
769
101 to 1,000
 
142
1,000+
 
3
Key takeaways for employment stats:

Sizes of animal shelters

Revenues per organizationNumber of organizations
< $250k
 
7,772
$250k to $1M
 
2,455
$1M to $5M
 
1,033
$5M to $25M
 
198
$25M to $100M
 
20
$100M+
 
4
Key takeaways for revenue stats:

Directory of animal shelters

Want to add filters to this list, or drill down on results in detail? Open in the Cause IQ search interface
1-20 of 29,237

Pasadena Humane

Pasadena Humane compassionately cares for animals, provides community support services, facilitates adoptions, and educates on responsible pet ownership in the Greater Los Angeles Area.
Revenue
$15.8m
Assets
$43.9m
Employees
196
EIN
95-1643344
IRS type
501(c)(3)

Humane Society Silicon Valley

Humane Society Silicon Valley is a California nonprofit that has operated continuously since 1929, focused on companion animal rescue and homelessness prevention.
Revenue
$18.3m
Assets
$55.1m
Employees
188
EIN
94-1196215
IRS type
501(c)(3)

Massachusetts Society for the Prevention of Cruelty to Animals (MSPCA-Angell)

The MSPCA-Angell is a national and international leader in animal protection and veterinary medicine and provides direct hands-on care for thousands of animals each year.
Revenue
$144.8m
Assets
$252.2m
Employees
1,063
EIN
04-2103597
IRS type
501(c)(3)

Marin Humane

Marin Humane transforms lives through animal care, education, and advocacy. It offers clinics, adoption services and outreach programs in Novato, CA.
Revenue
$14.0m
Assets
$31.5m
Employees
149
EIN
94-1156562
IRS type
501(c)(3)

The Maryland Spca

The Maryland SPCA rescues pets, connects them with loving homes, and promotes animal welfare through education, medical services, and community outreach.
Revenue
$8.3m
Assets
$39.8m
Employees
115
EIN
52-6001558
IRS type
501(c)(3)

World Society for the Protection of Animals (WSPA)

WSPA is an animal shelter or animal welfare organization in New York, NY whose mission is: WSPA's mission is to engaged people sharing our news and campaigns around the world.
Revenue
$7.3m
Assets
$13.8m
Employees
27
EIN
04-2718182
IRS type
501(c)(3)

Humane World for Animals International (HSI)

Humane Society International is one of the only international animal protection organizations in the world working to protect all animals.
Revenue
$35.1m
Assets
$5.7m
Employees
40
EIN
52-1769464
IRS type
501(c)(3)

Michigan Humane

Michigan Humane saves and improves lives through compassionate care, community engagement, and advocacy for animals.
Revenue
$29.0m
Assets
$44.5m
Employees
315
EIN
38-1358206
IRS type
501(c)(3)

International Fund for Animal Welfare (IFAW)

IFAW works to improve the welfare of wild and domestic animals throughout the world by reducing commercial exploitation of animals, protecting wildlife habitats, and assisting animals in distress.
Revenue
$36.5m
Assets
$53.1m
Employees
170
EIN
31-1594197
IRS type
501(c)(3)

Animal Friends

Animal Friends' vision is to ensure the well being of companion animals, while ending overpopulation, abuse and unwarranted euthanasia.
Revenue
$10.0m
Assets
$30.0m
Employees
151
EIN
25-0951565
IRS type
501(c)(3)

In Defense of Animals

In Defense of Animals defends animal rights and welfare through activism, education, investigations, and rescues. They support other nonprofits caring for animals.
Revenue
$2.9m
Assets
$9.2m
Employees
24
EIN
68-0008936
IRS type
501(c)(3)

Oregon Humane Society

Oregon Humane Society: private animal welfare org. founded in 1868 with the mission to create a more compassionate world for animals through education and adoption services.
Revenue
$39.7m
Assets
$112.8m
Employees
793
EIN
93-0386880
IRS type
501(c)(3)

Seattle Humane

Seattle Humane saves pets, provides adoption services, offers veterinary care, and supports pet owners through resources like a pet food bank.
Revenue
$16.3m
Assets
$48.1m
Employees
161
EIN
91-0282060
IRS type
501(c)(3)

Animal Welfare Institute

Animal Welfare Institute focuses on alleviating animal suffering through advocacy, education, and research, promoting welfare across agriculture, commerce, homes, and the wild.
Revenue
$6.2m
Assets
$27.5m
Employees
35
EIN
13-5655952
IRS type
501(c)(3)

Beagle Freedom Project

Beagle Freedom Project rescues and rehomes lab animals, promotes animal welfare education, and advocates against cruelty through legislation and outreach programs.
Revenue
$2.6m
Assets
$4.1m
Employees
20
EIN
55-0882647
IRS type
501(c)(3)

Animal Humane Society

Animal Humane Society engages community to help animals. Provides shelter, adoption, surrender, outreach, education & low-cost services to create a more humane world.
Revenue
$24.5m
Assets
$55.7m
Employees
466
EIN
41-0693842
IRS type
501(c)(3)

Best Friends Animal Society

Best Friends Animal Society strives to end homelessness for pets by demonstrating exemplary animal care and creating community programs and partnerships.
Revenue
$148.3m
Assets
$200.6m
Employees
1,119
EIN
23-7147797
IRS type
501(c)(3)

People for the Ethical Treatment of Animals (PETA)

People for the Ethical Treatment of Animals's mission is to work through public education, cruelty investigations, research, animal rescue, special events, celebrity involvement, and protest campaigns.
Revenue
$77.2m
Assets
$52.7m
Employees
366
EIN
52-1218336
IRS type
501(c)(3)

Humane Society of Missouri

Humane Society of Missouri is a nonprofit organization that provides adoption services for formerly-owned or abandoned pets. It has an animal cruelty taskforce that provides comprehensive investigative and emergency rescue services for animals statewide.
Revenue
$27.2m
Assets
$135.7m
Employees
320
EIN
43-0652638
IRS type
501(c)(3)

San Diego Humane Society and SPCA

San Diego Humane Society and SPCA promotes humane treatment, supports animal welfare, and provides vital services for pets and families across San Diego County.
Revenue
$72.9m
Assets
$133.0m
Employees
871
EIN
95-1661688
IRS type
501(c)(3)
Want more insights on animal shelters?
There's a whole lot more to Cause IQ than what you see here. Additional filters, personnel information, peer benchmarking, Salesforce integration, vendor lists, etc. Access all the information your company needs in one place, already collected.
Schedule a demo
Over 200 customers use Cause IQ to grow, maintain, and serve their nonprofit clients.
Methodology: Cause IQ mines all tax-exempt organizations that file a Form 990, Form 990-EZ, or Form 990-PF with the IRS. We collect and aggregate this information from OCR'd paper taxreturns, XML e-file taxreturns, IRS-provided extract, the Business Master File, and Cause IQ secret sauce for data cleaning, categorization, classification, analytics, etc.
This category corresponds to the "D20: Animal Protection and Welfare" National Taxonomy of Exempt Entities (NTEE) code. Cause IQ determines NTEEs for organizations by its own internally-developed secret-sauce algorithms.
Cause IQ is a website that helps companies grow, maintain, and serve their nonprofit clients, and helps nonprofits find additional foundation funding. Our data and tools help professionals prospect for nonprofits, research opportunities, benchmark their clients, and enrich existing information.
Nonprofits
Product
Customers
About

© 2026 Nonprofit Metrics LLC
Terms of Service and Privacy Policy