ASHRAE has announced that Jeff Littleton will retire as executive vice president in early 2027.

Littleton has served as ASHRAE’s chief staff officer since 2004, overseeing a period of sustained organizational growth, global expansion and increased technical impact. During his tenure, ASHRAE strengthened its position as a worldwide authority in building technology, sustainability and the development of critical standards for the built environment. He also successfully led the Society through the challenges of the COVID-19 pandemic, maintaining consistent operational continuity through one of the most disruptive economic and social periods of recent history.

“Jeff’s leadership has played a central role in navigating ASHRAE through decades of industry evolution, while advancing our global mission to serve humanity,” said 2025-26 ASHRAE President Bill McQuade, P.E., CDP, Fellow ASHRAE, LEED AP. “His steady guidance and strategic vision has helped to ensure that ASHRAE remains a trusted resource and leader in the building services industry. We are grateful for his service and the strong foundation he leaves for the future.”

Littleton’s legacy is defined by a focus on organizational alignment, collaboration between staff and volunteer leadership and continued advancement of ASHRAE’s technical and educational programs. Among his many accomplishments, Littleton was instrumental in supporting the Society’s selection, renovation and relocation to its net-zero energy global headquarters building in Peachtree Corners, Georgia.

The ASHRAE Board of Directors has established a selection committee to guide the search for the Society’s next executive vice president. ASHRAE will share additional details regarding the leadership transition in the coming months.