IT IS EASY to be green at Aquamarine Power (89% positive). The wave energy company in Edinburgh makes a real difference to the world, say its 60 staff (89%). Engineers, like the tides, don't clock in or out. "If the surf is good, the surfers have flexibility to leave early," the firm says. Martin McAdam, the chief executive, sends a "weekly wave" email to keep people in the loop. www.aquamarinepower.com
