According to our records, this business is located at 2000 Hope Ave. in Porterville (in Tulare County), California 93257, the location GPS coordinates are: 36.0307737 (latitude), -119.0582216 (longitude). Gridley Machine Co Inc is categorized under Machine Shops (SIC code 3599). Known organization president is Mark Gridley. You can contact the company by phone at (559) 781-6010.