Vista Equity Partners has agreed to buy the public key infrastructure (PKI) business unit of HID, part of ASSA ABLOY, the Swedish group said on 16 October. Terms were not disclosed.
Why Vista Equity Partners is buying HID PKI business unit (IdenTrust, HydrantID, ZeroSSL) from ASSA ABLOY
ASSA ABLOY's chief executive Nico Delvaux said Vista would be a committed long-term owner for the unit's staff and customers. Vista's Stephen Foster told PE Hub the assets span identity security for humans, machines and AI agents.
Deal terms and financing
The unit, which provides digital trust, identity, authentication, encryption and certificate management, generated 2025 sales of US$58m. No price or financing details were given.
Regulatory approvals and timing
The sale is subject to customary closing conditions and is expected to complete in the fourth quarter of 2026.
Market context
The business comprises the PKI SaaS brands IdenTrust and HydrantID and the ZeroSSL certificate service. ASSA ABLOY reported 2025 group sales of SEK152bn.






