Engineers for a Sustainable World (ESW) is a not-for-profit network headquartered in Pittsburgh, PA, USA. ESW is an umbrella organization with chapters established at over 50 colleges, universities, and city chapters located primarily in the United States and Canada ESW members work on technical design projects that have a focus on sustainability and environmental issues. Projects can be located either on-campus, in the local community, or internationally. Chapters are made up of students or professionals and are semi-autonomous.