Mason & Hanger, as a Day & Zimmermann company, was ranked as one of the 2025 Top 100 Green Design Firms by Engineering News-Record’s (ENR).
“As a firm deeply committed to sustainable design and resilient infrastructure, we are honored to appear on ENR’s Top 100 Green Design list again,” said Ben Lilly, President of Mason & Hanger. “This year’s ranking reflects our consistent focus on performance, efficiency, and our ability to deliver value through sustainable design. We continue to push forward in our mission of Building a More Secure World by keeping energy efficiency, resilience, and environmental excellence top of mind for our government facility designs.”
According to ENR, green design revenue increased 7.8% between 2023 and 2024 for the Top 100 Green Design Firms, topping $10 billion for the first time. International green design revenue rose slightly, up to $1.82 billion from $1.79 billion.
“Our clients are increasingly demanding high-performance, low-carbon, climate-resilient projects,” added Rob McAtee, Director of Energy & Sustainability. “This ranking reinforces that Mason & Hanger is staying ahead by applying high performance sustainable strategies, making use of renewable systems, and rigorously evaluating lifecycle performance. We see this as both recognition and motivation to continue raising our game in green design.”
Thank you to our talented team and partners who remain steadfast in our commitment to advancing sustainability, resilience, and innovation in all our projects.
