2025 40 Under 40: Dustin Langille, LEED AP BD+C, HBDP, BEMP, 39

Principal/Higher Education Practice Leader/Company Officer (Secretary), Elara Engineering; MS, Renewable and Clean Energy, University of Dayton

Langille’s impact on the building design and construction industry has been marked by an unyielding passion for cultivating a sustainable future for those to come, be it through designing energy-efficient building infrastructure systems or leading enterprisewide initiatives that create opportunities for engineers to elevate their skill set. Langille is an industry expert on decarbonization, net-zero, geothermal systems and large-scale institutional and campus projects. Throughout his career, he has conceptualized, designed and implemented hundreds of building infrastructure projects, several of which have received industry awards at local, regional and international levels. As an industry thought leader, Langille has transformed the way higher education clients approach energy efficiency across their campuses through his advocacy of long-term planning and system life cycle analysis to identify economically viable sustainable design solutions that maximize benefit and minimize cost to the client. Langille is an active leader and a frequent presenter within Elara’s training program, covering engineering topics focused on high-performance building design strategies, project management skills and project efficiency measures. He is a sought-after speaker at industry conferences, the author of various engineering articles and a mentor both internal and external to his firm. Langille is also an active participant in Elara’s volunteer program, which includes quarterly philanthropic events at local organizations. When not contributing to Elara’s success, Langille embraces a diverse range of interests, whether he’s sailing across the waters of Lake Michigan, camping under the stars, enjoying a game of chess, experimenting with new recipes or exploring new corners of the world.