According to our records, this business is located at 149 Woodcrest Way in Grass Valley (in Nevada County), California 95945, the location GPS coordinates are: 39.241334 (latitude), -121.06111 (longitude). Carlson Investigations is categorized under Protective Services, Guard (SIC code 7381). Known organization president is Robert Carlson. Current estimates show that the unit has a sales volume of $29,000 and staff of approximately 1 worker. You can contact the company by phone at (530) 274-2803.