Fortanix

Fortanix is a data-first, multi-cloud security company and one of the original commercial pioneers of confidential computing — protecting data not just at rest and in transit, but while actively in use, through hardware-based secure enclaves. Its unified platform spans confidential computing, encryption, key management, tokenization, and hardware security modules (HSMs), aimed at organizations in privacy-sensitive industries like healthcare, fintech, financial services, government, and retail.

Founded in 2016, Fortanix released the first commercially accessible Runtime Encryption solution using Intel SGX in September 2017 to encrypt sensitive data while it’s actively being processed, an event often cited as marking the origin of confidential computing as a distinct industry category. The Fortanix Confidential Computing Manager enables applications to run inside verified confidential-computing environments, manages the enclave lifecycle, and enforces identity, access, and attestation policies to ensure data and code integrity throughout.

Confidential computing addresses a real gap — data has traditionally been protected at rest and in transit but exposed while in use in memory — and Fortanix’s early-mover position gives it credibility as this niche matures alongside AI workloads that increasingly process sensitive data at scale. It competes against both point encryption/key-management vendors and larger cloud providers building native confidential-computing offerings, and as a privately-held company its customer scale beyond “over a hundred enterprises” is not independently detailed in public sources.