Building a New Home

Learn about our new facility plans, and how you can help!

Building a New Home

Learn about our new facility plans, and how you can help!


Thank You Phoenix Suns Charities!

Their generous $500,000 grant is part of the Phoenix Suns’ Rise Together campaign, a $10 million commitment to the City of Phoenix, its nonprofits and programs.  “We’re thrilled to support MASH in their mission of providing care and a loving home for neglected animals,” said Phoenix Suns President and CEO Jason Rowley. “MASH helps provide incredible opportunities for those incarcerated to learn compassion and valuable work and life skills while fostering love to animals in need.”

About Us

Join Our Winning Team

Thanks to an initial generous grant from PetSmart Charities, the Maricopa County Sheriff's Office will begin the construction on a new animal shelter for the animals seized during our investigations.  With your help we can provide a new loving and compassionate environment to support our efforts to care for and rehabilitate these neglected and abused animals.

No taxpayer funds will be used for construction.  The new MASH will be funded through a unique public-private partnership, including donations from caring individuals like you!

Our History

MASH has been around since 2000, but our current facility has been obsolete since even before that time. When Sheriff Paul Penzone took office in 2017 he conceived a new state-of-the-art, purpose-built facility utilizing the latest research about animal care and the best ways to foster the human-animal bond.

The new MASH will be built for the housing, care, and rehabilitation of 100 dogs and 200 cats.  There will be space for on-site veterinary care, and an outdoor dog run to provide exercise opportunities.

Our Mission: Animals + Inmates

Our MASH unit expands on our care for mistreated animals with programs dedicated to our inmate populations: incarcerated mothers, veterans recovering from PTSD, juveniles, and those with substance abuse issues.     The new MASH will have classrooms for inmates to learn about animal care and compassion, and obtain valuable work-life skills.


MCSO MASH is a 501(c)3 non-profit corporation, separate from Maricopa County, existing to provide financial support and consultation to the MASH Unit of the Maricopa County Sheriff's Office for purposes of ensuring a safe environment, health services, and relational training for abused and neglected animals.

MASH = MCSO Animal Safe Haven

Check back for updates on our construction project!