**Suffolk Technologies Invests in Lower-Carbon Cement Manufacturer Sublime Systems**
Suffolk Technologies, the institutional venture capital arm of Boston-based construction firm Suffolk, has announced an investment in Sublime Systems, a cement manufacturing company based in Somerville, Massachusetts. Sublime uses a proprietary electrochemical process to produce cement with significantly reduced carbon emissions. Specific terms of the investment were not disclosed.
In addition to this capital investment, Suffolk has also pre-purchased capacity from Sublime’s upcoming first commercial manufacturing facility, which is set to open in Holyoke, Massachusetts.
Cement is among the most carbon-intensive materials in the built environment, accounting for approximately 8% of global CO₂ emissions. According to Suffolk Technologies, Sublime’s innovative production method has the potential to not only drastically lower carbon output, but also to eventually achieve cost parity with conventional portland cement when produced at scale.
“This is more than an investment—it’s a statement about the future of construction,” said Jit Kee Chin, Executive Vice President and Chief Technology Officer at Suffolk, and co-founder and managing partner at Suffolk Technologies. “Sublime’s mission is no less than fundamentally reshaping a cornerstone of the global built environment landscape, and we are proud to support them through our capital, our network, and our commitment to building a more sustainable world.”
Suffolk’s investment is part of its broader strategy to lead innovation and sustainability within the construction industry.
