Trailstone Group | 7,809 followers on LinkedIn. Making sustainable energy sustainable | ***WE HAVE RECENTLY BEEN ACQUIRED BY ENGELHART COMMODITIES TRADING PARTNERS. SEE OUR WEBSITE FOR MORE DETAILS*** Trailstone is a global energy and technology company, operating at the intersection of renewable and conventional power. We trade energy in global markets, and we provide a best-in-class service to manage the inherent intermittency of renewable power generation across the short, medium and long term.