Chainguard is a software supply chain security company founded in 2021 and headquartered in Kirkland, Washington, that focuses on a prevention-first strategy by providing minimal, hardened container images and language libraries built from source on its Wolfi distribution, continuously rebuilt to maintain zero or near-zero known vulnerabilities and shipped with signed SBOMs and provenance attestations, including FIPS-validated and STIG-hardened variants for regulated environments.