Thomas works to advance green jobs sustainability and climate initiatives through communication and collaboration with social enterprises and non-profit organizations. He is currently the executive director for Engineers for a Sustainable World. ESW is a growing, student-based non-profit comprised of 1,500 Engineering and Technical students leading community-based sustainability projects on 45 University campuses in the US and Canada.

Previously, he was the Executive Director and CEO of ASME (The American Society of Mechanical Engineers), a global membership, standards and educational organization. A leader in association management, Thomas has served as the President/Board Chair of CESSE (Council on Engineering & Scientific Society Executives), an advisor to the digitalNow conference, and co-author of the Digital Transformation Readiness Assessment research report.

He is a frequent blogger and speaker on trends in green jobs. Thomas has acted as advisor and board member for several private companies and non-profit organizations. Thomas holds five patents in the field of physical security. He is a Fellow of ASME and member of the Pan-American Academy of Engineering.