Frontier, the tech-company-backed carbon removal coalition, announced $915 million in new funding commitments on Wednesday, adding Anthropic and Salesforce $CRM as participants and bringing its total pledges to $1.8 billion.
Anthropic is the first AI startup to join Frontier, according to TechCrunch. The coalition was founded in 2022 by Stripe, Google $GOOGL, and Shopify $SHOP, among others, to accelerate the development of carbon removal technologies by committing to purchase credits in advance. Other current participants include H&M Group and Salesforce.
Frontier is calling the new funding round a "Growth AMC," short for advance market commitment, and the organization says it signals a strategic pivot. Instead of casting a wide net across many early-stage projects, it intends to concentrate on roughly 10 to 15 carefully selected partnerships backed by offtake contracts lasting eight to ten years and stretching as far out as 2040 — all targeted at technologies with the strongest prospects for eventually achieving gigaton-scale carbon removal.
Among the carbon removal approaches Frontier is prioritizing with the new capital are direct air capture, enhanced rock weathering, ocean alkalinity enhancement, and biomass-based removal methods. As a condition of new contracts, Frontier is now demanding that prospective partners show a viable route toward government subsidies or compliance-driven revenue before their agreements run out, according to a coalition spokesperson.
"The question today in carbon removal is whether demand will keep pace with that technology development and will demand scale to the size that the world needs in order to meet global climate goals," Frontier head Hannah Bebbington Valori told The Wall Street Journal.
Frontier did not break down individual company contributions. Since its founding, it has contracted nearly $700 million across more than 50 projects to remove 1.8 million tons of carbon. In 2025, seven portfolio companies delivered roughly 23,000 tons of carbon removal, with Frontier forecasting that figure will exceed 50,000 tons in the current year, the coalition said.
Anthropic's participation is its first climate-related deal. The company has not yet published a sustainability report and has previously described favoring an "all of the above" approach to energy.
Data from CDR.fyi, a carbon removals tracking database, show the market has expanded dramatically, with total credit sales now approaching $12 billion — a sharp rise compared with the few hundred million dollars changing hands annually just four years ago. No single company has shaped that growth more than Microsoft $MSFT, which has snapped up around 37 million credits — a share the Journal puts at about three-quarters of all engineered removal purchases made to date.