Semperis
AI-powered identity security and cyber resilience platform specializing in Active Directory protection, threat detection, and disaster recovery.
About
Semperis builds identity security and recovery for Active Directory and Entra. The pitch on the homepage is blunt: "If Active Directory isn't secure, nothing is." Core products cover hybrid AD threat detection and response (Directory Services Protector), cyber-first disaster recovery for AD forests and Entra tenants (ADFR), and Ready1 for crisis response when an attack is in progress. Purple Knight, their free community AD assessment tool, is how a lot of admins first hear about them.
Customers skew enterprise and government across healthcare, finance, transportation, and critical infrastructure. Named on the site: Mayo Clinic, Sanofi, Prime Healthcare, Lenovo, El Al Airlines, Altice Portugal.
The team leans heavily on deep Microsoft identity expertise: 170+ combined years of Microsoft MVP experience, 25+ former Microsoft Premier Field Engineers, and an in-house Identity Forensics and Incident Response team. Six consecutive years of double-digit growth, and they acquired MightyID in February 2026.