A hardened, zero-knowledge alternative to Azure and SharePoint, built for governments, central banks, and enterprises where data sovereignty is an absolute, not a preference.
Every major public cloud provider such as Microsoft®, Google®, or Amazon®, operates under a fundamental assumption: they manage the encryption keys. This means that regardless of what their contracts state, the technical capability to access your data resides with a third party, subject to foreign jurisdictions, court orders, and intelligence agency demands.
For sovereign governments, central banks, defense contractors, and regulated financial institutions, this is not an acceptable risk posture. It is a structural vulnerability — and convenience is not an adequate justification for it.
Ampast's Sovereign Cloud Suite eliminates that assumption entirely. We build private, air-gapped infrastructure that delivers every capability of a modern enterprise collaboration platform, email, documents, real-time editing, or file management, while ensuring that cryptographic control never leaves your physical perimeter.
Six mission-critical enterprise capabilities delivered on infrastructure you physically control, encrypted with keys only you possess.
End-to-end encryption where the mail server itself cannot read message content. Cryptographic keys are generated client-side and never transmitted. Metadata shielding ensures even routing patterns remain opaque to any third party.
SharePoint-exceeding functionality from versioned document libraries and collaborative editing to access control lists, deployed within your sovereign network perimeter. Files are encrypted at rest and in transit under keys you manage.
Encrypted team workspaces, project channels, and task management, the operational backbone of a modern enterprise, confined entirely within your air-gapped environment. No data ever touches a public network.
Classified-grade video conferencing and voice communication over sovereign infrastructure. SRTP/ZRTP media encryption prevents interception at the packet layer. No cloud relay, no foreign routing, no external dependency.
Centralized data management systems for structured and unstructured data with policy-based retention, automated classification, and audit trails that satisfy the most stringent regulatory frameworks including GDPR, ITAR, and national security statutes.
On-premise identity provider (IdP) with hardware MFA, PKI certificate management, and smart-card authentication. Active Directory integration with zero dependency on cloud-based IdP services so that your user directory never leaves the perimeter.
In a conventional mail server, the provider can decrypt any message, regardless of TLS in transit. Ampast's zero-knowledge architecture ensures that decryption is structurally impossible outside the recipient's device.
Encryption keys are generated locally, on the user's device, before any data reaches the server. The server stores only ciphertext, it has no mathematical pathway to the plaintext, regardless of what legal instruments or threat actors demand. When a message is sent between two Ampast-hosted users, key exchange occurs over a sovereign PKI, entirely within your controlled infrastructure. For external recipients, S/MIME and PGP are both natively supported.
All the operational richness of Microsoft® SharePoint™ and Google® Workspace, versioning, co-authoring, structured libraries and departmental access controls, deployed as a sovereign, air-gapped system under your physical control.
Documents are encrypted at rest with per-file keys. Access control is enforced at the cryptographic layer so that a user without the correct key cannot open a file regardless of file system permissions. Real-time collaborative editing is conducted over an encrypted in-memory session: no unencrypted document state ever persists on the server. Full version history is maintained in an immutable, tamper-evident log.
Software security is bounded by the network it runs on. Ampast designs and deploys the physical infrastructure layer, isolated server rooms, dark-fiber interconnects, and Faraday-shielded facilities, that makes the software guarantees credible.
Our infrastructure architects work directly with your facilities and security teams to design a topology that provides modern DevOps flexibility, containerised workloads, Kubernetes orchestration, CI/CD pipelines, while residing entirely within your physical and legal perimeter. Every rack is commissioned and audited by Ampast engineers before handover. Post-deployment, we provide ongoing architecture support under a sovereign maintenance agreement with strict clearance requirements for our own staff.