Somerville, Massachusetts — Sublime Systems has laid off roughly two-thirds of its workforce after losing a major federal manufacturing grant.
According to a report circulating on layoff tracking platforms, the Massachusetts-based clean cement startup reduced staffing after an expected $87 million grant from the U.S. Department of Energy did not move forward as planned.
The grant had been intended to support the company’s first large-scale manufacturing facility, a key step toward commercializing Sublime Systems’ low-carbon cement technology. The funding was expected to help scale production and accelerate construction of the plant.
Sublime Systems, headquartered in Somerville, develops an alternative cement process designed to reduce carbon emissions associated with traditional cement manufacturing, one of the world’s most emissions-intensive industries. The company has raised significant venture funding and has been considered part of a growing sector focused on decarbonizing building materials.
Details about the exact number of employees affected were not immediately released. However, reports indicate approximately two-thirds of the workforce was impacted as the company reassessed its financial position following the loss of the federal funding support.
The Department of Energy had previously announced multiple grants to help scale emerging clean-industrial technologies across the United States. Projects receiving those awards often rely on the funding to bridge the gap between pilot projects and full manufacturing facilities.
The layoffs highlight the financial risks faced by climate-technology startups, particularly those dependent on large public grants to move from research into industrial production.
For workers and commuters in the Boston area’s tech and startup ecosystem, the layoffs add to a series of recent workforce reductions affecting early-stage climate and manufacturing ventures.
Sublime Systems has not publicly released a full statement detailing the layoffs or future plans for the manufacturing project.
This article was produced by a journalist and may include AI-assisted input.
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