About
Founded in 1973, Grumman|Butkus Associates is a nationally recognized firm specializing in sustainable design engineering and energy efficiency consulting. Our award-winning services include facility assessment and analysis, MEP engineering design, commissioning, retro-commissioning, monitoring-based commissioning, and energy efficiency and LEED consulting. From its beginnings over 50 years ago as a small energy consulting firm, under the direction of Dave Grumman and Al Butkus, GBA has grown to include more than 150 professionals in four offices, serving clients throughout North America. Sustainable engineering remains the bedrock of all we do. From building performance assessments and studies, through design, commissioning services, and post-occupancy engineering analytics, GBA has the expertise you need to create more efficient, economical, environmentally beneficial facilities.