Self-Sovereign Identity

We enable solutions that leverage Decentralized Identifiers (DIDs) and Verifiable Credentials (VCs), which are W3C recommendations. We develop systems for managing the lifecycle of DIDs and VCs, including issuance, presentation, and storage.

Access Control

We provide Attribute-based and Capabilities-based access control solutions. We enable transparent protection of Web resources and IoT devices. Our solutions enable controlled, decentralized, and secure of Internet resources.


We enable the integration of emerging digital identity specifications (e.g., DIDs, VCs, eIDAS) with existing systems and Web applications. We develop solutions based on industry standards, including OAuth 2.0 and OpenID connect.


ExcID is a spin-off of the Athens University of Economics and Business. ExcID pursues identity and data-centric solutions to many Internet problems, mostly focusing on security and privacy, but also more generally, while making sure that security and privacy are supported by design from the outset.