Led · Series A · Apr 2026

Critical Loop builds an integrated hardware and software energy platform that combines battery storage, on-site generation, and Cygnus, its software-defined power controller, into deployable modular microgrids. Its core product line includes the CLB-5100, a scalable 1 MW integrated battery system that can connect to on-site generation, existing grid infrastructure, and distributed generation, and can be moved to locations with constrained grid capacity. The company highlights deployments and wins such as optimizing an 11 MW solar-plus-battery system at San Diego International Airport, keeping a manufacturing facility operational for eight months during a utility outage, enabling Terawatt Infrastructure to secure over 4 MW of incremental capacity across two EV charging sites, and deploying two hybrid microgrids at Mojave test facilities within days. Critical Loop has secured a supply agreement with LG Energy Solution Vertech for US-made batteries and has received support from California programs and regulatory recognition. The company is currently operating across California and plans to expand into other territories where grid constraints drive demand. To date, Critical Loop reports $49 million in total committed equity and debt funding.

Participated · Seed · Sep 2025

Dig Energy has developed a compact water-jet drilling rig intended to dramatically reduce the upfront cost of shallow geothermal ground loops for heating and cooling. The founders, Dulcie Madden and Thomas Lipoma, spent about five years in stealth refining the design and drilling test holes through various soils and rock types near their New Hampshire offices. The company claims its rig can cut drilling costs by up to 80% and produces straighter holes that can be placed closer together than those from conventional rigs. Dig plans to sell its rigs to drillers and is preparing a slightly larger production version for initial commercial pilots supported by its recent seed round. The startup is positioning its technology to enable broader adoption of geothermal by making rigs small enough to access constrained sites such as backyards and crowded commercial lots.

Led · Series B · Jun 2024

M2X Energy develops modular, transportable gas-to-liquids systems that economically produce low-carbon methanol from stranded methane using a patented, non-catalytic partial-oxidation engine reformer and integrated methanol synthesis loop. The company’s fuel-flexible process accepts a variety of methane-rich feedstocks, including biogas from landfills, anaerobic digestors, and wastewater treatment plants, enabling production of biomethanol that aligns with regulatory certification schemes. M2X has completed multiple field deployments that de-risked its technology and demonstrated a manufacturing-led approach—replacing traditional economies of scale with mass manufacturing and automation. The company has established 10,000 square feet of turnkey manufacturing space, initiated equipment orders, and is accelerating go-to-market and fleet expansion. M2X plans to deploy its first commercial systems and deliver low-carbon methanol under long-term offtake agreements in early 2025. The company seeks to supply maritime, chemical, manufacturing, and industrial partners with long-term contracts to displace higher-carbon fuels and feedstocks. M2X is based in Rockledge, Florida and is led by its original founding team of engineering PhDs and industry experts.