Share: ManufacturingWholesale Distribution GENOTHEN HOLDINGS, LLC Request Info 2948 29th Ave SW Tumwater, WA 98512-6194 (360) 352-3636 Hours: Mon - Fri 7am to 4pm About Map About We manufacture casework, millwork, and architectural woodwork for commercial projects, specializing in schools, hospitals, fire stations and other Public Works buildings. What's Nearby? Distance: 5 10 15 20 25 50 mi.