ECP Environmental Growth Opportunities Corp. (ENNVW) operates as a blank check company, or special purpose acquisition company (SPAC), focused on effecting a merger, share exchange, asset acquisition, share purchase, reorganization, or similar business combination with one or more businesses or entities in the environmental growth sector; its core offerings encompass public units, Class A common stock, and public warrants exercisable for shares of Class A common stock, providing investors access to de-SPAC transactions targeting sustainable and environmental opportunities. The company, founded in 2020 and headquartered at 40 Beechwood Road in Summit, New Jersey, United States, conducts its operations principally in the US with a focus on North American infrastructure and growth-stage enterprises. In February 2022, ECP Environmental Growth Opportunities Corp. completed a business combination with Fast Radius, Inc., a cloud manufacturing platform provider, through which ENNV merged into Fast Radius in a reverse merger transaction, resulting in the combined entity trading under the ticker FSRD on Nasdaq while ECP's warrants persist under ENNVW; no subsequent mergers or redemptions have materialized as of late 2025, with ENNVW warrants maintaining active OTC trading amid high historical redemptions of approximately 31.5 million shares at closing.