Terradot expands global carbon removal footprint with Eion acquisition

Carbon removal startup Terradot is acquiring U.S. peer Eion in a move that combines their enhanced rock weathering capabilities, reflecting consolidation and scaling in the private markets for climate solutions. The deal unites technical expertise and broadens the operational footprint of the enlarged strategic partnership, according to The Wall Street Journal.

Strategic Eion acquisition boosts Terradot’s carbon removal reach

Terradot, a carbon‑removal company backed by major technology investors, has agreed to purchase Eion, another enhanced rock weathering (ERW) developer, marking a strategic expansion of its private markets presence. The acquisition brings Eion’s assets, intellectual property and ongoing operations under Terradot’s platform, deepening collaboration and pooling technical strengths.

The transaction expands Terradot’s project portfolio and operational capabilities while preserving Eion’s core team and deployment experience. Terradot previously focused on basalt‑based ERW projects, and with Eion’s expertise in olivine‑based approaches, the combined entity benefits from a broader feedstock mix and enhanced geographic reach.

Leaders in both companies have characterized the acquisition as a strategic partnership that “consolidates” resources and positions the merged platform to better meet demand for scalable, durable carbon removal solutions. The enlarged operation spans multiple continents and project types, making it more attractive to large corporate and institutional buyers in private markets.

Why the acquisition matters for carbon removal and private markets

Enhanced rock weathering accelerates a natural process by which crushed silicate minerals react with CO₂ and sequester it in stable forms in soil and water. As a carbon removal method, ERW is gaining interest among buyers seeking long‑lived, measurable reductions in atmospheric carbon, especially as the voluntary carbon markets evolve.

The Terradot–Eion deal signals a shift in the carbon‑removal space toward consolidation, with smaller companies combining to achieve the scale and operational depth required by institutional and tech buyers. This trend reflects broader market pressures, including tighter venture funding and a preference among large purchasers for partners capable of delivering high‑volume removal at consistent quality.

Eion’s existing contracts, including early carbon credits and field deployments, will now feed into Terradot’s larger portfolio. Combined, the two firms have hundreds of thousands of tonnes of removal under contract, strengthening their position in the ERW segment of the private carbon markets.

Enhanced rock weathering and industry context

ERW works by spreading pulverized minerals such as basalt and olivine on agricultural land to speed up chemical reactions that lock away CO₂ in soils and oceans. This approach offers potential co‑benefits like improved soil health while sequestering carbon over long periods, a feature that appeals to buyers seeking both climate impact and resilience.

Terradot’s strategy has involved deploying basalt in Brazil to capture carbon, while Eion focused on olivine in U.S. operations. The combination gives the merged platform a diversified set of geographies and feedstocks to work with year‑round, mitigating operational and seasonal risks that can affect delivery.

The consolidation also reflects broader developments in climate tech, where companies in emerging private markets for carbon removal are adapting to tighter capital environments and evolving buyer expectations. As large buyers and sovereign wealth funds increasingly seek reliable, verifiable removal at scale, larger platforms with diversified portfolios may have a competitive edge.

Terradot’s acquisition of Eion highlights a strategic partnership move that strengthens its position in the growing private markets for carbon removal. By combining technical expertise, diverse feedstocks, and customer contracts, the new owner aims to deliver scalable enhanced rock weathering solutions that can meet rising demand from institutional and corporate buyers. This consolidation signals a maturing segment of climate tech, where larger, integrated players are emerging to lead durable CO₂ removal efforts