Stryker

Stryker’s success in the medical device business has earned it a market capitalization of $62 billion. Increasingly, it’s using its reach as a supplier to hospitals to be an environmental champion. Through “Pulse Ox for the Planet,” the company last year encouraged hospitals to collect rather than throw out more of its pulse oximeters, devices that keep tabs on your heart rate and the oxygen in your blood. (As part of the program, Stryker in return made a donation of thousands of trees.) Stryker has also gotten creative about environmentally friendly materials—for example, using soy-based oils to replace some petroleum-based ones in the “positioners” that help hospital patients avoid bedsores.