01
Quanterios · active
The cryptographic and AI security and governance platform for European regulated industries. Two products, one architecture.
Plothner Group
A European holding for infrastructure-grade security and governance software.
Plothner Group is the European holding company behind Quanterios. The group operates infrastructure-grade security and governance software brands across cryptography, AI, and adjacent regulated domains, with shared region-pinned data planes and a common operational model.
The shared infrastructure model means each operating brand benefits from the group's region-pinned data planes, signed CSP support contracts, and operational maturity from day one, without each brand having to rebuild the basics.
01 · Operating brands
02
Tessera · paused
Cryptographic attestation infrastructure. Currently paused; the team and the operational stack remain part of the group.
02 · Shared infrastructure
Each operating brand inherits the group's operating fabric on day one.
Region-pinned EU data planes, Frankfurt, Dublin, Zurich
Signed CSP support contracts with named delivery teams
Shared identity, observability, and incident-response platforms
Common engineering practice, written-first, EU-pinned, in-person quarterly
Common procurement, legal, and finance support
03 · Where this is going
Plothner Group expects to add operating brands as adjacent regulated domains mature into platform opportunities. The group operates as a long-term holding rather than a venture portfolio.
If you'd like to discuss group-level partnership, M&A interest, or investor relations, email hello@plothner.com.