http://www.petsmartcharities.org/spay-neuter/for-spayneuter-clinics.html

The mission of PetSmart Charities is to improve the quality of life for all companion animals through programs that save the lives of homeless pets and promote healthy relationships between people and pets. PetSmart’s Targeted Spay/Neuter Program provides grants for spay/neuter projects that focus on owned pets (dogs and/or cats) in areas where there is a critical need. Target areas may include all or part of a county, city, township, ZIP code, census tract, neighborhood, mobile home park, or other location. The Free-roaming Cat Spay/Neuter Program provides grants for spay/neuter projects that work to reduce the free-roaming cat population within a specific geographic area. The grant range for both programs is $10,000 to $100,000.  Visit the PetSmart website to learn more about these grant programs.