US-based low-carbon building materials company Terra CO2 announced it has raised $124.5 million in Series B funding to accelerate its sustainable cement production. The round was co-led by Breakthrough Energy Ventures, Eagle Materials, GenZero, and Just Climate, with notable participation from Barclays Climate Ventures. Additional strategic investors included Prologis, Cemex, and Siemens Financial Services, underscoring broad support from across the construction and logistics industries.
In parallel with the equity raise, Silicon Valley Bank (a division of First Citizens Bank) and Stifel Bank co-led a credit facility to give Terra added financial flexibility. The company did not disclose a valuation for this round.
The funding comes as US government subsidies for climate initiatives decline, highlighting the need for solutions that are competitive on cost and compatible with existing infrastructure. Terra’s Supplementary Cementitious Materials (SCM) offer a commercially-ready, subsidy-independent product that appeals to both investors and industry partners.
“Terra’s mandate is to deliver cementitious material solutions that the market would purchase solely based on cost and performance, even if there was no carbon benefit,” said CEO Bill Yearsley. “The fact that Terra’s cementitious materials also offer significant carbon mitigation is an additional advantage for the built environment.”
With the fresh capital, Terra plans to begin construction of its first 240,000 TPY commercial advanced-processing facility in the Dallas-Fort Worth area. This marks an important milestone for the company’s path to scale.
The funding will also support expansion of Terra’s offices and industrial facilities, grow its team significantly, advance more shovel-ready commercial projects, and develop the next generation of its cementitious products.
Founded in Golden, Colorado, Terra CO2 is tackling the emissions-heavy cement industry by offering low-carbon alternatives that work seamlessly with existing production and deployment infrastructure. Cement accounts for an estimated 8% of global CO₂ emissions, making it a key focus area for decarbonization.
Terra’s technology uniquely works with abundant, locally available silicate rock feedstocks from existing mines, which makes its materials scalable and affordable. The company’s first product, OPUS SCM, is commercially available today and can replace up to 50% of traditional Portland Cement in concrete mixes. Its second product, OPUS Zero, which could fully replace Portland Cement, is currently undergoing concrete trials.
Validated by independent tests, Terra’s materials have shown to perform as well or better than traditional options while significantly cutting emissions.
Alongside its lead and strategic investors — Breakthrough Energy Ventures, Eagle Materials, GenZero, Just Climate, Barclays Climate Ventures, Prologis, Cemex, and Siemens Financial Services — Terra also benefits from banking support via Silicon Valley Bank and Stifel Bank.
“Terra’s technology offers a combination of commercial readiness and cost competitiveness. Its ability to support the decarbonization of a heavy industry such as cement aligns with our commitment to support scalable, near-term solutions in hard-to-abate sectors,” added Steven Poulter, Head of Barclays Climate Ventures.
