Affiliated Engineers, Inc.

Affiliated Engineers, Inc. (AEI) provides engineering leadership and whole-mission solutions for complex building, energy, and utility projects. For nearly 50 years, we have supported mission-driven organizations in designing spaces that heal, inspire, and foster discovery.

From world-class hospitals and research laboratories to sustainable campuses and advanced energy systems, our work shapes some of the nation's most innovative environments.

With more than 900 professionals across 22 offices nationwide, AEI combines technical excellence, forward-thinking design, and collaboration to address the challenges that matter the most.

At the heart of AEI's work is a shared purpose: to design leading-edge, sustainable systems that elevate the human experience, safeguard the environment, and unlock new possibilities.