According to our records, this business is located at PO Box 2274 in Antioch (in Contra Costa County), California 94531, the location GPS coordinates are: 38.0049214 (latitude), -121.805789 (longitude). A G Companies is categorized under Health Services (SIC code 8099). Known organization owner is Eugene Reimenscneider. Current estimates show that the unit has a sales volume of $224,000 and staff of approximately 2 people. You can contact the company by phone at (925) 776-1031.