Johnna Martinez

Grants Manager


As Grants Manager, Johnna coordinates all components of the grant-making process for the Community Foundation. She is responsible for performing regulatory compliance for grants through donor-advised funds and other funds as well as administers our competitive grantmaking programs.

Johnna understands the struggles that nonprofits go through because prior to joining the Community Foundation, she was the Executive Director of a local nonprofit organization for 10 years.


Johnna is an alumnus of the University of South Florida and currently serves on the Polk County Water School Committee, the Natural Resource Advisory Committee, and volunteers her time with several organizations around the county. Being a new “empty nester,” in her spare time, she enjoys spending time at the beach (any beach), exploring around our state, and traveling to new cities she’s never been to.