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.

BaaSid, short for Blockchain as a Service for ID, is a blockchain based network for securing personal authentication data. BaaSid divides and redistributes data related to personal information on a blockchain and does not rely on a centralized database to store this sensitive information. The network is powered by the Ethereum-based BAAS token.

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.