Humane Community Cat Advocacy
We empower Southern California neighborhoods through Trap-Neuter-Return (TNR), free feral spay/neuter education, kitten rescue, and compassionate community cat care. Together, we stop feline overpopulation and protect innocent lives.
100% volunteer-run. Every dollar funds spay/neuter, vaccinations, and emergency medical care.
22,000+ Cats & Kittens Fixed Since 2015
Prevents hundreds of thousands of unwanted births each year.
100% Volunteer-Powered
Zero overhead wasted; every cent directly benefits street cats.
1,500+ Orphan Kittens Rescued & Fostered
Socialized and placed into loving forever homes.
10+ Regional Spay/Neuter Allies
Teaming with FixNation, ASPCA, Pasadena Humane & more.
Our Method
Traditional trapping and euthanasia failed for decades. Trap-Neuter-Return (TNR) is the only proven, humane, and effective method to stabilize and reduce feral cat populations.
01Trap-Neuter-Return (TNR / TNVR)
Outdoor cats are humanely trapped, surgically spayed or neutered by licensed veterinarians, rabies vaccinated, ear-tipped for identification, and returned to their outdoor home where volunteer colony caretakers feed and monitor them.
How TNR Works
02Kitten Rescue & Foster Care
Young, socializable kittens and nursing mother cats pulled from feral colonies enter our foster network instead of high-kill shelters. They receive veterinary care, deworming, love, and indoor socialization until adopted.
Become a Foster Parent
03Trapping Classes & Vanpools
We teach community members how to humanely trap cats, provide loaner traps, and organize volunteer vanpools transporting cats to high-volume spay/neuter clinics like FixNation.
Register for Training
04Emergency Medical & Colony Care
Feral cats often suffer from dental disease, eye infections, abscesses, or trauma. Our Medical Cats Fund covers life-saving surgeries, treatments, and compassionate veterinary support.
Support Medical Cats
Critical Knowledge
Ear-tipping is the universal, humane sign of a community cat that has been spayed or neutered, vaccinated, and returned to its colony.
Performed under general anesthesia by a veterinarian while the cat is being sterilized.
Allows animal control, trappers, and caretakers to immediately recognize the cat from a distance so it is never trapped for surgery a second time.
Ear-tipped cats are legally protected, sterilized, and actively preventing new litters in your neighborhood.
Forever Homes Needed
All of our cats are spayed/neutered, microchipped, fully vaccinated, and FIV/FeLV tested. We offer trial adoption periods so you can ensure the perfect match!
Bonded Siblings • 4 MonthsPlayful, affectionate, and purr machines saved from an industrial park colony.
Young Female • 1 YearGentle lap-cat who loves head scratches and sunny windowsills.
Special Needs SurvivorFully recovered from injury, looking for a quiet and loving forever sanctuary.
Kitten • 3 MonthsCurious explorer raised in foster care, great with kids and other pets.
Transparent Giving
As a 100% volunteer-driven organization, we have no paid executive salaries or corporate headquarters. Every dollar you contribute buys antibiotics, spay/neuter surgeries, trap equipment, kitten formula, and emergency veterinary procedures.
Your one-time gift of $50 helps us spay or neuter one cat.
Donate $50Direct Giving
Donate Online via PayPal or CardVenmo
@thetnrproject
Mail a Check
The TNR Project, PO Box 11, Monrovia, CA 91017
Wishlist Direct Shipping
UrgentThe Medical Cats Fund
Street life is unforgiving. Stray and community cats often face abscesses, fractures, hit-and-run trauma, severe stomatitis, and respiratory illness. Our Medical Cats Fund is a dedicated emergency reserve that never turns away a cat in pain.
Contribute to Medical Care
UrgentSupply Wishlists & Gear Drive
From Tru-Catch humane traps and heating pads to Royal Canin Babycat food and puppy pads, you can purchase supplies that ship straight to our network of volunteer foster homes and trapping coordinators.
Browse Wishlist ItemsCommunity Allies
Need to get your outdoor or family cat fixed? We proudly collaborate with and recommend these affordable, high-volume veterinary clinics across Southern California.
Sun Valley
Specialized free feral TNR spay/neuter clinic and loaner traps.
Pasadena
Low-cost spay/neuter, vaccination clinics, and feral cat vouchers for SGV residents.
Pomona
High-quality low-cost surgical services and community cat assistance.
Community Animal Medicine Project, formerly SNPLA
San Pedro, Mission Hills, and mobile spay/neuter units throughout Los Angeles County.
Los Angeles
Fully subsidized spay/neuter mobile clinics in targeted underserved zip codes.
Mobile spay/neuter surgery units serving South LA and East LA communities.
Ontario
High-volume, affordable surgery clinic for Inland Empire and Pomona Valley cats.
Community Voices
“Before The TNR Project, we had 14 reproducing cats in our alleyway and litters of sickly kittens every spring. The TNR team trained us, loaned traps, and transported the cats. Today, all 14 are healthy, fixed, ear-tipped, and no new kittens have been born in 4 years!”
“We fostered a hissing 5-week-old ginger kitten rescued from an engine block. Within 3 weeks of TLC, he melted into the sweetest cuddlebug. We ended up foster-failing and officially adopting him. The TNR Project provided all veterinary care and supplies!”
“Leo showed up at my feeding station with a terrible infected jaw abscess. The TNR Project stepped in immediately with emergency medical funding. After surgery and 2 weeks of recovery, Leo was neutered and safely returned healthy.”
Volunteer — Feet on the Street
There are never enough TNR-educated people on the streets. Help us canvass neighborhoods, talk to neighbors, transport cats to clinics, or assist at adoption events.
Volunteer With Us
Foster Orphan Kittens
Don't have time to trap? Fostering kittens for 2 to 6 weeks keeps them out of overcrowded shelters and gives them a second chance at life. We supply everything you need.
Apply to FosterStay Connected
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