Company lists · Data refreshed September 2026
Top 25 Spay and neuter nonprofits based in the United States
RevenueBase identified 833 company matches for spay and neuter nonprofits associated with the United States as of September 2026 and tracks 7,090 professional contacts across them, including 1,893 with verified work emails. Los Angeles is the largest hub.
This list covers company matches for spay and neuter nonprofits associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 spay and neuter nonprofits based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 225 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 153 contacts → | ||||
Exact match “Founded in 1879, the Wisconsin Humane Society has been saving the lives of animals in need for nearly 140 years.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 146 contacts → | ||||
Exact match “Humane Society Silicon Valley (HSSV) is an independent, 501(c)(3) non-profit animal shelter that has been serving people and pets since 1929.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 103 contacts → | ||||
Exact match “Emancipet operates non-profit veterinary clinics that provide affordable, high-quality and compassionate care in underserved communities.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 92 contacts → | ||||
Exact match “The Humane Society of Tampa Bay is dedicated to ending animal homelessness and providing care and comfort for companion animals in need.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 85 contacts → | ||||
Exact match “The mission of the Sacramento SPCA is to foster a loving and compassionate community for animals and people by providing assistance, creating lifelong relationships, and saving…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 85 contacts → | ||||
Exact match “AWA is a private, no-kill, 501(c)3 organization that does not receive federal, state, or county funding.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 83 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 76 contacts → | ||||
Exact match “We are one of the oldest Humane Societies in the United States established 150 years ago.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 74 contacts → | ||||
Exact match “Our Vision: Every cat thrives.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 71 contacts → | ||||
Exact match “Founded in 1885, the Jacksonville Humane Society is a local, independent non-profit 501(c)(3) organization.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 69 contacts → | ||||
Exact match “The mission of First Coast No More Homeless Pets is to make veterinary care affordable and accessible to all as we save lives by keeping dogs and cats in homes and out of…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 58 contacts → | ||||
Exact match “Our Mission is to save lives and benefit the wellbeing of pets and their people with kindness, innovation, and leadership.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 56 contacts → | ||||
Exact match “Founded in 1922, The Animal Protective Association of Missouri is a non-profit organization dedicated to bringing people and pets together, advancing humane education and creating…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 56 contacts → | ||||
Exact match “IndyHumane provides direct services for cats and dogs, including adoption, foster home placement, positive reinforcement behavior training for adoptable animals, appropriate…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 55 contacts → | ||||
Exact match “The San Antonio Humane Society (SAHS) is a 501(c)(3) nonprofit, no-kill organization that has served Bexar County and its surrounding areas since 1952.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 55 contacts → | ||||
Exact match “The Maryland SPCA’s mission is to reduce pet homelessness by providing pet retention services, safety net housing, and community engagement that empowers citizens of Baltimore and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 55 contacts → | ||||
Exact match “Animal Friends Alliance emerged in January 2020 from the union of Fort Collins Cat Rescue & Spay/Neuter Clinic and Animal House Rescue & Grooming.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 55 contacts → | ||||
Exact match “Founded in 1930, the Greenville Humane Society is the largest no-kill shelter in the Southeast, and operates one of the largest low-cost spay/neuter clinic in South Carolina.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 54 contacts → | ||||
Exact match “SPCA Florida is a 501(c)3 non-profit organization in Lakeland, Florida, founded in 1979.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 53 contacts → | ||||
Exact match “Founded in 1998 by a passionate group of volunteers, SPCA of Northern Nevada (SPCA-NN) is proud to be our region’s first no-kill animal shelter.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 52 contacts → | ||||
Exact match “Dakin Humane Society is a community supported animal welfare organization that provides shelter, medical care, and spay/neuter services for more than animals each year.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 51 contacts → | ||||
Exact match “Since the Kansas Humane Society has been committed to helping the lost, abandoned and homeless animals in our community.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 47 contacts → | ||||
Exact match “Incorporated in 1934, the Animal Defense League of Texas (ADL) is a non-profit organization that provides medical care, spay/neuter surgery, vaccinations, a microchip, nutrition…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 46 contacts → | ||||
Exact match “The Society for the Prevention of Cruelty to Animals (SPCA) of Wake County, founded in 1967, is a non-profit animal welfare organization dedicated to creating a more humane…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “spay and neuter nonprofits”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 833 spay and neuter nonprofits based in the United States
See the full list, filter by size, metro and specialty, and access 1,893 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Spay and neuter nonprofits based in the United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 833 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “spay and neuter nonprofits” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 1,893 professional contacts with verified work emails across the full matched dataset. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “spay and neuter nonprofits”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many spay and neuter nonprofits are there based in the United States?
RevenueBase identified 833 company matches for spay and neuter nonprofits associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Paws Chicago tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most spay and neuter nonprofits?
Los Angeles leads with 11 company records, followed by Phoenix (9) and Las Vegas (8).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,893 professional contacts with verified work emails tracked across these 833 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 833 spay and neuter nonprofits based in the United States. Start with a free account, no credit card.
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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 SmartSearch, 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.
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Company intelligence · public preview
Top 25 spay and neuter nonprofits based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 833 matching company records for spay and neuter nonprofits based in the United States, with 7,090 tracked contacts and 1,893 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 spay and neuter nonprofits based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Paws Chicagopawschicago.orgHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 225 contacts → |
“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.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Wisconsin Humane Societywihumane.orgHQ: Milwaukee, WI, United StatesReported employees: 201-500 | Milwaukee, WI, United States | 201-500 | Exact match | 153 contacts → |
“Founded in 1879, the Wisconsin Humane Society has been saving the lives of animals in need for nearly 140 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Humane Society Silicon Valleyhssv.org HQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 146 contacts → |
“Humane Society Silicon Valley (HSSV) is an independent, 501(c)(3) non-profit animal shelter that has been serving people and pets since 1929.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Emancipetemancipet.orgHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 103 contacts → |
“Emancipet operates non-profit veterinary clinics that provide affordable, high-quality and compassionate care in underserved communities.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Humane Society Of Tampa BAYhumanesocietytampa.orgHQ: Tampa, FL, United StatesReported employees: 51-200 | Tampa, FL, United States | 51-200 | Exact match | 92 contacts → |
“The Humane Society of Tampa Bay is dedicated to ending animal homelessness and providing care and comfort for companion animals in need.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sacramento Spcasspca.org HQ: Sacramento, CA, United StatesReported employees: 51-200 | Sacramento, CA, United States | 51-200 | Exact match | 85 contacts → |
“The mission of the Sacramento SPCA is to foster a loving and compassionate community for animals and people by providing assistance, creating lifelong relationships, and saving…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Animal Welfare Associationawanj.org HQ: Voorhees, NJ, United StatesReported employees: 51-200 | Voorhees, NJ, United States | 51-200 | Exact match | 85 contacts → |
“AWA is a private, no-kill, 501(c)3 organization that does not receive federal, state, or county funding.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Humane Society Of Southern Arizonahssaz.org HQ: Tucson, AZ, United StatesReported employees: 51-200 | Tucson, AZ, United States | 51-200 | Exact match | 83 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | Charleston Animal Societycharlestonanimalsociety.org HQ: North Charleston, SC, United StatesReported employees: 51-200 | North Charleston, SC, United States | 51-200 | Exact match | 76 contacts → |
“We are one of the oldest Humane Societies in the United States established 150 years ago.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Tree House Humane Societytreehouseanimals.orgHQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 74 contacts → |
“Our Vision: Every cat thrives.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Jacksonville Humane Societyjaxhumane.org HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 71 contacts → |
“Founded in 1885, the Jacksonville Humane Society is a local, independent non-profit 501(c)(3) organization.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | First Coast NO More Homeless Petsfcnmhp.org HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 69 contacts → |
“The mission of First Coast No More Homeless Pets is to make veterinary care affordable and accessible to all as we save lives by keeping dogs and cats in homes and out of…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Humane Society Of Sonoma Countyhumanesocietysoco.org HQ: Santa Rosa, CA, United StatesReported employees: 51-200 | Santa Rosa, CA, United States | 51-200 | Exact match | 58 contacts → |
“Our Mission is to save lives and benefit the wellbeing of pets and their people with kindness, innovation, and leadership.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: St. Louis, MO, United StatesReported employees: 11-50 | St. Louis, MO, United States | 11-50 | Exact match | 56 contacts → |
“Founded in 1922, The Animal Protective Association of Missouri is a non-profit organization dedicated to bringing people and pets together, advancing humane education and creating…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Indyhumaneindyhumane.org HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 56 contacts → |
“IndyHumane provides direct services for cats and dogs, including adoption, foster home placement, positive reinforcement behavior training for adoptable animals, appropriate…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  SAN Antonio Humane Societysahumane.orgHQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 55 contacts → |
“The San Antonio Humane Society (SAHS) is a 501(c)(3) nonprofit, no-kill organization that has served Bexar County and its surrounding areas since 1952.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Maryland Spcamdspca.org HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 55 contacts → |
“The Maryland SPCA’s mission is to reduce pet homelessness by providing pet retention services, safety net housing, and community engagement that empowers citizens of Baltimore and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Animal Friends Alliancesavinganimalstoday.org HQ: Fort Collins, CO, United StatesReported employees: 51-200 | Fort Collins, CO, United States | 51-200 | Exact match | 55 contacts → |
“Animal Friends Alliance emerged in January 2020 from the union of Fort Collins Cat Rescue & Spay/Neuter Clinic and Animal House Rescue & Grooming.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Greenville Humane Societygreenvillehumane.com HQ: Greenville, SC, United StatesReported employees: 11-50 | Greenville, SC, United States | 11-50 | Exact match | 55 contacts → |
“Founded in 1930, the Greenville Humane Society is the largest no-kill shelter in the Southeast, and operates one of the largest low-cost spay/neuter clinic in South Carolina.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Spca Floridaspcaflorida.org HQ: Lakeland, FL, United StatesReported employees: 51-200 | Lakeland, FL, United States | 51-200 | Exact match | 54 contacts → |
“SPCA Florida is a 501(c)3 non-profit organization in Lakeland, Florida, founded in 1979.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Spca Of Northern Nevadaspcanevada.org HQ: Reno, NV, United StatesReported employees: 11-50 | Reno, NV, United States | 11-50 | Exact match | 53 contacts → |
“Founded in 1998 by a passionate group of volunteers, SPCA of Northern Nevada (SPCA-NN) is proud to be our region’s first no-kill animal shelter.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dakin Humane Societydakinhumane.org HQ: Springfield, MA, United StatesReported employees: 11-50 | Springfield, MA, United States | 11-50 | Exact match | 52 contacts → |
“Dakin Humane Society is a community supported animal welfare organization that provides shelter, medical care, and spay/neuter services for more than animals each year.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Kansas Humane Societykshumane.org HQ: Wichita, KS, United StatesReported employees: 51-200 | Wichita, KS, United States | 51-200 | Exact match | 51 contacts → |
“Since the Kansas Humane Society has been committed to helping the lost, abandoned and homeless animals in our community.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Animal Defense League Of Texasadltexas.orgHQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 47 contacts → |
“Incorporated in 1934, the Animal Defense League of Texas (ADL) is a non-profit organization that provides medical care, spay/neuter surgery, vaccinations, a microchip, nutrition…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Spca Of Wake Countyspcawake.org HQ: Raleigh, NC, United StatesReported employees: 51-200 | Raleigh, NC, United States | 51-200 | Exact match | 46 contacts → |
“The Society for the Prevention of Cruelty to Animals (SPCA) of Wake County, founded in 1967, is a non-profit animal welfare organization dedicated to creating a more humane…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 833 company matches
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Spay and neuter nonprofits: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
827 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 833 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for spay and neuter nonprofits?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many spay and neuter nonprofits did RevenueBase find based in the United States?
The saved snapshot records 833 matching company records, 7,090 tracked contacts and 1,893 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 spay and neuter nonprofits based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/spay-and-neuter-nonprofits/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 25 spay and neuter nonprofits based in the United States
RevenueBase records 833 matching company records for spay and neuter nonprofits based in the United States, with 7,090 tracked contacts and 1,893 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 spay and neuter nonprofits based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Paws Chicagopawschicago.org HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 225 contacts → |
“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.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Wisconsin Humane Societywihumane.org HQ: Milwaukee, WI, United StatesReported employees: 201-500 | Milwaukee, WI, United States | 201-500 | Exact match | 153 contacts → |
“Founded in 1879, the Wisconsin Humane Society has been saving the lives of animals in need for nearly 140 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Humane Society Silicon Valleyhssv.org HQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 146 contacts → |
“Humane Society Silicon Valley (HSSV) is an independent, 501(c)(3) non-profit animal shelter that has been serving people and pets since 1929.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Emancipetemancipet.org HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 103 contacts → |
“Emancipet operates non-profit veterinary clinics that provide affordable, high-quality and compassionate care in underserved communities.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Humane Society Of Tampa BAYhumanesocietytampa.org HQ: Tampa, FL, United StatesReported employees: 51-200 | Tampa, FL, United States | 51-200 | Exact match | 92 contacts → |
“The Humane Society of Tampa Bay is dedicated to ending animal homelessness and providing care and comfort for companion animals in need.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sacramento Spcasspca.org HQ: Sacramento, CA, United StatesReported employees: 51-200 | Sacramento, CA, United States | 51-200 | Exact match | 85 contacts → |
“The mission of the Sacramento SPCA is to foster a loving and compassionate community for animals and people by providing assistance, creating lifelong relationships, and saving…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Animal Welfare Associationawanj.org HQ: Voorhees, NJ, United StatesReported employees: 51-200 | Voorhees, NJ, United States | 51-200 | Exact match | 85 contacts → |
“AWA is a private, no-kill, 501(c)3 organization that does not receive federal, state, or county funding.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Humane Society Of Southern Arizonahssaz.org HQ: Tucson, AZ, United StatesReported employees: 51-200 | Tucson, AZ, United States | 51-200 | Exact match | 83 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | Charleston Animal Societycharlestonanimalsociety.org HQ: North Charleston, SC, United StatesReported employees: 51-200 | North Charleston, SC, United States | 51-200 | Exact match | 76 contacts → |
“We are one of the oldest Humane Societies in the United States established 150 years ago.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tree House Humane Societytreehouseanimals.org HQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 74 contacts → |
“Our Vision: Every cat thrives.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Jacksonville Humane Societyjaxhumane.org HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 71 contacts → |
“Founded in 1885, the Jacksonville Humane Society is a local, independent non-profit 501(c)(3) organization.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | First Coast NO More Homeless Petsfcnmhp.org HQ: Jacksonville, FL, United StatesReported employees: 51-200 | Jacksonville, FL, United States | 51-200 | Exact match | 69 contacts → |
“The mission of First Coast No More Homeless Pets is to make veterinary care affordable and accessible to all as we save lives by keeping dogs and cats in homes and out of…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Humane Society Of Sonoma Countyhumanesocietysoco.org HQ: Santa Rosa, CA, United StatesReported employees: 51-200 | Santa Rosa, CA, United States | 51-200 | Exact match | 58 contacts → |
“Our Mission is to save lives and benefit the wellbeing of pets and their people with kindness, innovation, and leadership.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: St. Louis, MO, United StatesReported employees: 11-50 | St. Louis, MO, United States | 11-50 | Exact match | 56 contacts → |
“Founded in 1922, The Animal Protective Association of Missouri is a non-profit organization dedicated to bringing people and pets together, advancing humane education and creating…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Indyhumaneindyhumane.org HQ: Indianapolis, IN, United StatesReported employees: 11-50 | Indianapolis, IN, United States | 11-50 | Exact match | 56 contacts → |
“IndyHumane provides direct services for cats and dogs, including adoption, foster home placement, positive reinforcement behavior training for adoptable animals, appropriate…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | SAN Antonio Humane Societysahumane.org HQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 55 contacts → |
“The San Antonio Humane Society (SAHS) is a 501(c)(3) nonprofit, no-kill organization that has served Bexar County and its surrounding areas since 1952.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Maryland Spcamdspca.org HQ: Baltimore, MD, United StatesReported employees: 51-200 | Baltimore, MD, United States | 51-200 | Exact match | 55 contacts → |
“The Maryland SPCA’s mission is to reduce pet homelessness by providing pet retention services, safety net housing, and community engagement that empowers citizens of Baltimore and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Animal Friends Alliancesavinganimalstoday.org HQ: Fort Collins, CO, United StatesReported employees: 51-200 | Fort Collins, CO, United States | 51-200 | Exact match | 55 contacts → |
“Animal Friends Alliance emerged in January 2020 from the union of Fort Collins Cat Rescue & Spay/Neuter Clinic and Animal House Rescue & Grooming.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Greenville Humane Societygreenvillehumane.com HQ: Greenville, SC, United StatesReported employees: 11-50 | Greenville, SC, United States | 11-50 | Exact match | 55 contacts → |
“Founded in 1930, the Greenville Humane Society is the largest no-kill shelter in the Southeast, and operates one of the largest low-cost spay/neuter clinic in South Carolina.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Spca Floridaspcaflorida.org HQ: Lakeland, FL, United StatesReported employees: 51-200 | Lakeland, FL, United States | 51-200 | Exact match | 54 contacts → |
“SPCA Florida is a 501(c)3 non-profit organization in Lakeland, Florida, founded in 1979.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Spca Of Northern Nevadaspcanevada.org HQ: Reno, NV, United StatesReported employees: 11-50 | Reno, NV, United States | 11-50 | Exact match | 53 contacts → |
“Founded in 1998 by a passionate group of volunteers, SPCA of Northern Nevada (SPCA-NN) is proud to be our region’s first no-kill animal shelter.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Dakin Humane Societydakinhumane.org HQ: Springfield, MA, United StatesReported employees: 11-50 | Springfield, MA, United States | 11-50 | Exact match | 52 contacts → |
“Dakin Humane Society is a community supported animal welfare organization that provides shelter, medical care, and spay/neuter services for more than animals each year.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Kansas Humane Societykshumane.org HQ: Wichita, KS, United StatesReported employees: 51-200 | Wichita, KS, United States | 51-200 | Exact match | 51 contacts → |
“Since the Kansas Humane Society has been committed to helping the lost, abandoned and homeless animals in our community.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Animal Defense League Of Texasadltexas.org HQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 47 contacts → |
“Incorporated in 1934, the Animal Defense League of Texas (ADL) is a non-profit organization that provides medical care, spay/neuter surgery, vaccinations, a microchip, nutrition…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Spca Of Wake Countyspcawake.org HQ: Raleigh, NC, United StatesReported employees: 51-200 | Raleigh, NC, United States | 51-200 | Exact match | 46 contacts → |
“The Society for the Prevention of Cruelty to Animals (SPCA) of Wake County, founded in 1967, is a non-profit animal welfare organization dedicated to creating a more humane…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Spay and neuter nonprofits: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
827 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 833 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for spay and neuter nonprofits?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many spay and neuter nonprofits did RevenueBase find based in the United States?
The saved snapshot records 833 matching company records, 7,090 tracked contacts and 1,893 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 spay and neuter nonprofits based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/spay-and-neuter-nonprofits/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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