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.

Total raised

$26M

Funding rounds

1

Latest round

Series A

Latest activity

Apr 2026