Portfolio companies

44.01 eliminates CO₂ by turning it into rock. The company’s pioneering technology accelerates the natural process of CO₂ mineralization to remove captured CO₂ permanently in less than twelve months. 44.01 takes CO₂ captured directly from the air, or from heavy-emitting industrial processes, helping decarbonize vital industries and ultimately return the atmosphere to sustainable levels of CO₂. The process is safe, scalable and lasts forever.

75F provides an Internet of Things (IoT)-based building management system that uses sensors, controls, and software to measure and optimize energy use, which materially saves both money and CO₂ emissions for its customers. Commercial buildings are the fourth-largest emitter of greenhouse gases worldwide, and 75F’s award-winning product makes them smarter and cleaner.

Achates Power’s opposed-piston engine design is more efficient than conventional engines, so that an engine consumes less fuel and emits commensurately less CO₂. And because Achates’s opposed-piston engine design is mechanically simple and eliminates many of the parts found in conventional engines, it costs less to manufacture. This means a customer purchasing an opposed-piston engine for a long-haul heavy truck or off-road equipment could pay less for the engine and save money operating it.

Aeroseal is a software-enabled energy efficiency solution provider with patented sealing technologies for commercial and residential buildings. Its products can reduce energy consumption in buildings by 30% on average by seeking and sealing air leaks.

Andium is an Industrial Internet of Things (IoT), award-winning company providing remote-field monitoring and communications technology. It allows oil and gas companies to continuously monitor flaring activity and reduce emissions. Andium’s extraordinarily easy-to-deploy technology takes 30 readings per second and sends confirmatory, auditable data back to a customer in real time, rendering about 85% of site visits unnecessary.

BluStone Energy (formerly F2Vi) manages end-to-end projects to reduce natural gas flaring. It includes development, financing, construction, and operation. These projects aim to significantly reduce methane emissions in the near-term.

Boston Metal is developing an award-winning, carbon-free technology that enables a more efficient, more sustainable, and cost-competitive production of steel with no scaling limitations. Molten Oxide Electrolysis is an ore-based solution that requires no coal. Renewable electricity passes through the iron oxide in the ore to make pure liquid iron and oxygen. No carbon is involved in the process. The technology platform can also be used to produce critical metals from mining waste.

Carbon Upcycling is a carbontech company delivering technology to decarbonize hard-to-abate industries. Carbon Upcycling’s patented technology permanently stores CO₂ in industrial byproducts and minerals, transforming them into high-performance alternative materials for cement and concrete. The Company aims to reduce the carbon impact of industrial processes, divert industrial materials from landfills, and enable a circular economy.