Mantel Capture, Inc.

Founded in 2022, and based in Massachusetts, US, Mantel Capture, Inc. operates as a clean technology company that develops a carbon capture solution. The company was founded by its CEO, Cameron Halliday, COO, Danielle Colson; and CTO, Sean Robertson. In August 2022, Mantel Capture, Inc.

raised USD 2 million in seed funding led by investor The Engine, with participation from another new investor, New Climate Ventures. Mantel Capture develops a liquid-phase carbon capture technology based on molten salt that can operate in high-temperature (about 600ºC) environments like those found within boilers, kilns, and furnaces to absorb CO2 and discharge the absorbed stream of CO2 into storage for other uses. The technology enables its customers to produce high-quality heat while minimizing energy losses. The company’s targeted client base is companies in the industrial heat, cement, steel, and hydrogen industries, who can use its solutions to cut energy losses and emissions to fulfill climate goals.

As of 2022, the company is working to commercialize its technology. In September 2024, Mantel raised USD 30 million in Series A funding co-led by Eni Next and Shell Ventures, with participation from Arosa Capital Management Lp, BP Ventures, Engine Ventures, Hartree Partners LP, Newlab, New Climate Ventures, My Climate Journey Collective, and Vale Ventures. The company plans to use the August 2022 funding to accelerate its technology development, prototype testing, and initial deployment.