Denver Kittens

With the loss of other spay and neuter programs and a scary economic outlook at best, the need in Denver has never been greater, and we’re stepping up to meet it.

In 2025, we launched a spay and neuter voucher, providing free spay/neuter, vaccines, and microchips to cats in the Denver Metro area. This program is now a core program for Denver Kittens along with our rescue effort. 

We’ve already fixed over 100 cats this year, with very little marketing. Of those, 45 were beloved family pets—cats who will never again risk “accidental litters,” sick kittens, behavior issues like spraying, or deadly illnesses like pyometra and mammary cancer. With every surgery, we also provide vaccines that protect against rabies and panleuk, and microchips that reunite families if their cat is lost. And all of this care is offered at absolutely no cost to families, many of whom are struggling under Denver’s skyrocketing cost of living.

We are currently the only organization in the Denver area providing spay, neuter, vaccines, and microchips at no cost—not low cost, but no cost. Families are depending on us, and the cats need us.

We've also pulled over 100 cats from euthanasia lists and found them loving homes. At the heart of our mission is this simple truth: spay and neuter saves lives—and it keeps cats out of rescue in the first place. With your help, we can meet the urgent need today and build a brighter, healthier future for Denver’s cats tomorrow.We firmly believe that supporting spay and neuter supports rescue efforts by keep cats OUT of rescue in the first place.

Our mission:

• Provide free and low-cost spay and neuter for cats and kittens
• Support Trap, Neuter, Return (TNR) efforts
• Provide rescue for social cats and kittens