• Amrize joins leading startup incubator Greentown Labs as Terawatt Partner
• Leading US platform to engage with startups on smarter, more efficient ways to build from foundation to rooftop
• Expands Amrize’s open innovation ecosystem to advance the built environment 

CHICAGO, October 1, 2025 – Amrize (NYSE: AMRZ) is joining Greentown Labs as a Terawatt Partner, to accelerate the development of innovative building technologies. As a partner of this incubator, Amrize is expanding its open innovation ecosystem focused on advancing the built environment across infrastructure, commercial and residential construction.

Amrize will join Greentown’s leading community of startups at its incubators in Boston and Houston to identify, pilot, invest and scale up the most promising building technologies, while leading mentoring and innovation exchanges.

“North American builders are demanding smarter, more efficient and more resilient construction. We look forward to partnering with Greentown Labs and its member startups to co-create new solutions to address these needs, from handling the most extreme weather conditions to increasing speed of construction,” said Roald Brouwer, Amrize’s Chief Technology Officer.

"This partnership between Amrize and Greentown's community of entrepreneurs aims to accelerate innovation across the building industry," said Aisling Carlson, Greentown's Chief Growth Officer. "Many of our startups are developing innovations that revolutionize how buildings are planned, built, retrofitted, and managed, and Amrize will play a key role in rapidly bringing these technologies to market."

This partnership adds to Amrize’s open-innovation ecosystem across North America to offer its customers the most advanced building solutions from foundation to rooftop. Fostering innovation across the built environment, Amrize partners with leading academic institutions such as MIT and invests in disruptive startups from Sublime Systems—a Greentown startup—in Boston to Travertine in Colorado.

About Amrize

Amrize (NYSE: AMRZ) is building North America, as the partner of choice for professional builders with advanced branded solutions from foundation to rooftop. With over 1,000 sites and a highly efficient distribution network, we deliver for our customers in every U.S. state and Canadian province. Our 19,000 teammates uniquely serve every construction market from infrastructure, commercial and residential to new build, repair and refurbishment. Amrize achieved $11.7 billion in revenue in 2024 and is listed on the New York Stock Exchange and the SIX Swiss Exchange. We are ready to build your ambition.

About Greentown Labs

Greentown Labs is a 501(c)(3) nonprofit accelerating climatetech innovation and commercialization by empowering entrepreneurs and enabling collaboration. As the largest climatetech and energy startup incubator in the world—with locations in Somerville, Mass. and Houston, Texas—Greentown convenes the climatetech ecosystem to provide entrepreneurs the community, connections, labs, and resources they need to thrive. Greentown is home to more than 200 startups and has supported more than 625 since its founding in 2011; these startups have collectively created more than 16,500 jobs and raised more than $9.6 billion in funding. For more information, visit www.greentownlabs.com or follow Greentown on LinkedIn.