is a leading commercial composting technology and engineering firm based in Seattle, WA.
Since 1992 GMT has been designing and building innovative commercial composting systems for facilities of all types and sizes, with 400+ commercial clients around the world.
GMT provides engineering, equipment & technology along with operational consulting and to commercial composting clients .
GMT specializes in providing complete, and solutions to commercial composting facilities, including advanced (ASP) processing systems, (TAP) technologies and (MBT) for MSW treatment.
GMT鈥檚 commercial facility designs focus on maximum operational efficiency, processing speed and outstanding and other environmental factors such as .
GMT also is a global leader in the category of 鈥淚n Vessel Composters鈥 which contain and automate the composting process while controlling and capturing odors.
GMT鈥檚 Earth Flow, CompTainer and CompoBox Tunnel in-vessel composting systems offer unparalleled process speed and odor control while requiring minimal operational labor.
GMT鈥檚 Site Built Earth Flow is a larger version of the containerized Earth Flow system, designed for small farms and small food-waste composting facilities that process up to 5,000 tons per year.
GMT鈥檚 CompoBox Tunnel system is ideal for medium to large scale industrial composting and recycling facilities processing between 10,000 to 150,000 tons per year. The enclosed system contains all odors and automates the management of oxygen and moisture levels, with rapid processing and minimal labor.
In partnership with , GMT offers world-class compost turning equipment including the unique TracTurn side-discharge compost turner.
GMT also offers affordable and effective for open-air ASP/TAP systems, as a cost-effective way to control odors and moisture management of the composting process.
To learn more about commercial composting solutions for all types and sizes of facilities, visit or send an email to [email protected] or call
+1 (206) 319 7102 M-F 9am-5PM US Pacific Time.