A Mission-Driven Sustainable Engineering Firm
50 years of creating solutions that solve your problems – and the planet’s.
Engineering Sustainable Solutions That Matter
Most of our clients return for our effective solutions, but all of our customers leave with efficient building operations that save energy, save time, and cut costs. At Grumman|Butkus Associates, our dedication to being sustainable design engineers who put people and the planet first has led to decades-long partnerships with clients and hundreds of millions of dollars in energy savings.
“A commitment to energy conservation and customer service inspired the founding of our firm. Fifty years later, it’s still the bedrock of every project.”
Dan Doyle, Chairman – Illinois
Improve Your Building Systems. Impact The Planet.
With innovative energy efficiency consultants at your side.
You need your facility to operate at its best, and we’re here to help you go beyond that. Our LEED and energy efficiency consultants have the expertise to create effective solutions that will benefit both your bottom line and the environment.
%
Customer Satisfaction
Licensed Professional Engineers
LEED Projects
Commissioning Group Engineers
Effective Data. Efficient Designs. Sustainable Engineering Expertise.
Find the strategies you need to operate at your best and improve your bottom line with proven analytical, design, and commissioning expertise.
Multidiscipline Sustainable Engineering
We haven’t met a problem we couldn’t solve.
“Grumman|Butkus Associates has been a valued partner with Hyatt since 1984. Their professionalism and quality work continues to make them a trusted team member on our equity portfolio projects.”
Fred Brandstrader, AIA, Hyatt Hotels
Careers
Design. Build. Innovate.
Turn your passion into a thriving career at GBA.
If you’re an entrepreneurial engineer who thrives on solving the unsolvable, GBA is the right career move for you. When you join GBA, your ambition will be supported by experienced engineers who know what it takes to succeed – in the field and as a team.
Awards
175 Awards for Engineering Excellence – and Counting
What we do wouldn’t be recognized without a commitment to creating the facilities clients need to operate at their best. For over 50 years, that commitment has been acknowledged through international, national, regional, and state-level engineering awards.
Take a look!
News
We’re Evolving. See How GBA is Pushing Sustainable Engineering Forward.
Explore the latest news, projects, and events at Grumman|Butkus Associates.
Refrigerant Phase-Downs: What You Need To Know
GBA is occasionally asked about the potential impact of upcoming phase-downs of some common HFC refrigerants, including R410A. In 1988, the U.S. Senate unanimously ratified the Montreal Protocol, which led to a phase out of CFC refrigerants responsible for damage to...
ComEd Recognizes GBA as Outstanding Energy Efficiency Provider
Electrical utility ComEd has praised GBA’s work across its Energy Efficiency incentive program, honoring GBA with the 2022 Energy Efficiency Service Provider (EESP) Award and the 2022 Most Savings of the Year Award. The EESP designation is given to the Service...
GBA Promotes Five Employees
GBA's Chicago regional office promoted five staff members at the recent semi-annual meeting: Kevin Vander Klay, PE, QCxP, LEED AP, was promoted to Associate. Heather Beaudoin, PE, LEED AP BD+C, CEM, BEMP, GBE, was promoted to Associate. Abigail Steimel, CEM, was...