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.
Licensed Professional Engineers
Commissioning Group Engineers
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
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.
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!
We’re Evolving. See How GBA is Pushing Sustainable Engineering Forward.
Explore the latest news, projects, and events at Grumman|Butkus Associates.
Do your critical-use buildings have their transfer switch settings optimized? Critical-use buildings—such as hospitals, data centers, prisons, laboratories, and buildings that house industrial processes—utilize generators for backup power. Transfer switches are a...
Since its inception in 1995, GBA's Hospital Energy and Water Benchmarking Survey has helped hospitals benchmark their energy and cost performance against other similar facilities, in an anonymous format. Participants are provided with graphical and numerical...
GBA's Chicago, Milwaukee, and New York regional offices recently promoted 14 staff members: Doug Frey, PE, LEED AP, was promoted to Associate Vice President. Aaron Eisenmann and Anthony Papapietro, EIT, were promoted to Associate. Corey Sweeney; Gregori “Greg” Tayco,...