Executive Leadership Team

Bruce Kellerman

Senior VP, IWT & Energy Recovery Systems

Bruce is a seasoned executive with more than 25 years of leadership experience across global operations, customer experience, sales, and product management within industrial manufacturing and technology-driven industries. He has led large cross-functional teams and held senior roles at Algas-SDI, Power Breezer, TAG, and MEMC/SunEdison Semiconductor, consistently delivering double-digit revenue growth, launching innovative products, and driving strategies that improved customer experience, operational performance, and profitability. Bruce holds a Ph.D. in Physical Chemistry from the University of Texas at Austin and a B.S. in Chemistry from Rhodes College, along with executive certifications in Strategic Marketing Management from Stanford University and Pricing Strategy and Tactics from the University of Chicago.

Bart A. Aitken

President, Chief Executive Officer and Director

Darren Allen

Chief Financial Officer

Dennis Hettinger

Vice President, Human Resources

Michael Donahue

Vice President of Account Management

Johan Tallberg

Senior Vice President, Asset Lifecycle Management

Brian Rhoades

Senior Vice President of Operations

Earle Pfefferkorn

President, Boiler Systems

Bruce Kellerman

Senior VP, IWT & Energy Recovery Systems