Led · Grant · Jul 2026

Thea Energy builds pixel-inspired rectangular magnets and software to generate and fine-tune stellarator magnetic fields, using many smaller planar coils to shape plasma confinement. The company says its approach lets software control arrays of regular magnets to create complex stellarator fields, and it has built dozens of full-scale magnet iterations in its Jersey City lab. Thea originally spun out of the Princeton Plasma Physics Laboratory and has iterated its design to include a set of larger magnets alongside more than 300 smaller coils that fine-tune the plasma. With $130 million in total private funding after the new Series B, Thea is scaling magnet manufacturing and plans to begin construction of its Eos demonstration reactor next year. The company aims to complete Eos by 2030 and bring a commercial device, Helios, online in 2034.

Led · Grant · Apr 2026

Princeton Critical Minerals develops and commercializes an integrated technology platform for extracting lithium from brine, including products named Lilypad™, SmartPond™, and E-LiTE™. The company is operating field deployments that produce validation data under industrial conditions. With the new financing, PCM plans to scale manufacturing and expand commercial deployments while building U.S.-based production capabilities. The firm aims to continue advancing its core extraction technologies toward full commercial execution. The company also reported growth in its team as it prepares to execute on upcoming milestones.

Led · Grant · Dec 2025

Phoenix Tailings is developing the Freedom Facility, a fully integrated rare earth separation and metallization platform intended to produce both light and heavy rare earth metals from concentrates, recycled materials, and secondary sources. The company plans the facility to act as a midstream processing hub that can purchase output from mines and recyclers and supply materials to manufacturers and government entities. The project will use domestically controlled technology and intellectual property and aims to deliver cleaner, more efficient operations than conventional refining methods. Phoenix Tailings has targeted initial operations at the Freedom Facility for 2028. Financially, the company announced an approximately $1 billion financing initiative that includes a conditional $500 million long-term debt commitment from the U.S. Department of War’s Office of Strategic Capital to support construction and scaling of the facility.

Participated · Grant · Oct 2023

Osmoses has developed a patented membrane technology and polymer material platform that delivers unprecedented flux and selectivity for separating the world’s smallest gas molecules. The company says its membranes can reduce industrial energy consumption by up to 90%, enable up to 40% higher product recoveries in some hydrogen purification applications, and cut footprint by over 50% versus conventional processes. Published in Science Magazine in 2022, the platform targets difficult, energy‑intensive separations across hydrogen, biomethane, oxygen generation, helium harvesting, refrigerant reuse, and carbon capture. Osmoses plans to develop commercial-scale membrane modules for field deployment and establish pilot partnerships with chemical and petrochemical firms, utilities, and alternative energy companies. In the coming months the company will double full-time headcount and build partnerships with engineering and manufacturing firms to commercialize its technology. Founded in 2021 and spun out of MIT, Osmoses aims to address a gas separations market the company projects to grow from $15 billion toward $35 billion by 2030. Osmoses has developed a patented 3D ladder membrane polymer platform that delivers up to 5x the selectivity and 100x the permeability versus conventional membranes, while remaining stable under industrial conditions. The membranes are designed to integrate with existing energy infrastructures and are manufactured via established techniques as modular units. The company says the platform can cut energy consumption by 40%–60% compared with commercial alternatives and targets separations including methane, hydrogen, oxygen, biogas upgrading, and CO2 removal. Osmoses positions its technology as a lower-cost, higher-performance alternative to thermal separation processes with applications across power generation and materials manufacturing. The team plans to use initial funding to hire technical and operations staff, advance platform development, scale manufacturing, and pursue initial commercial partnerships. Founded in 2021 and spun out of MIT, Osmoses is based in Cambridge, Mass.

Led · Grant · Nov 2022

Ampaire develops hybrid-electric retrofit systems that combine electric propulsion with conventional engines for existing commercial aircraft to lower fuel burn, reduce emissions and cut airline operating costs. The company has demonstrated its technology in flight and is pursuing product certification and scaled production. Ampaire plans to use the new Series B proceeds to accelerate commercialisation, build supply chains, expand manufacturing and scale operating capabilities. It has engaged with airlines and industry partners, including participation in an IAG-run accelerator where it explored hybrid-electric auxiliary power unit (APU) solutions. Investors in the latest round include IAGi Ventures, Alaska Airlines and DiamondStream Partners. The company positions its offerings as practical retrofit options for aircraft already in service.