Metadium is developing a blockchain protocol for Self-Sovereign Identity. Their goal is to allow users to own all aspects of their identity. Metadium's network is powered by the Ethereum-based META token.

3Box is developing an identity management platform for Ethereum-based DApps. Users will be able to create a profile that will allow them to sign in to DApps with one click. 3Box is a ConsenSys portfolio company.

THEKEY is developing a decentralized identity verification (IDV) solution. The company uses the term BDMI to describe their solution. which stands for "Blockchain Based Dynamic Multi-Dimension Identification". The platform will create a holographic digital identity online, which will allow users to have greater control over managing their online identities.
THEKEY's network is powered by the TKY token.