1. WasteStreams NW 5706 17th Ave NW, Seattle, WA 98107 Coordinate: 47.67039,-122.37828 Phone: (206) 747-7316
2. Engineered Compost Systems 4220 24th Ave W, Seattle, WA 98199 Coordinate: 47.65825,-122.38707 Phone: (206) 634-2625