According to our records, this business is located at 1339 61st St. in Oakland (in Alameda County), California 94608, the location GPS coordinates are: 37.8425254 (latitude), -122.2899876 (longitude). Mason Investigative Group is categorized under Protective Services, Guard (SIC code 7381). Known organization owner is Eric Mason. Current estimates show that the unit has a sales volume of $87,000 and staff of approximately 3 people. You can contact the company by phone at (510) 655-1700.