Trust Center/Sub-processors
Sub-processorPurposeData processedRegion
Amazon Web Services, Inc.Cloud hosting — compute, database, KMS, secrets, transactional emailAccount data, audit records, hashes, sealed documents in transitEU (Stockholm, eu-north-1)
Stripe Payments Europe, Ltd.Subscription billing and invoicingBilling email, plan, payment metadata. Card data is never seen by Sigill.EU
ZITADEL GmbHFederated identity / SSO (Google, Microsoft Entra ID)Email, OIDC claims, IdP metadata for tenants that enable SSOEU (eu1.zitadel.cloud)
Cloudflare, Inc.Turnstile bot protection on the public contact form onlyIP address and browser fingerprint at form-submit timeGlobal edge
GitHub, Inc. (ghcr.io)Container image registry for the API and frontend buildsNo customer data — application images onlyGlobal

Transfers outside the EEA

Where a sub-processor operates outside the European Economic Area, the transfer relies on the EU Commission's Standard Contractual Clauses and — where the counterparty is established in the United States — the EU-US Data Privacy Framework. Sigill.ai itself is established in Norway (EEA) and runs its primary application data plane inside the EU.

What is not a sub-processor

Cryptographic counterparties — external Timestamp Authorities and Certificate Authorities — are not sub-processors in the GDPR sense. They never receive customer documents, only hashes (timestamping) or public-key certificate requests (CA issuance). They are documented under standards.

Notification

Customers on a paid plan with an executed data-processing agreement will be notified by email of new sub-processors at least 30 days before they begin processing. The notice period applies to materially new processors; routine regional capacity changes within an existing sub-processor (for example, AWS adding an availability zone inside eu-north-1) do not require a fresh notice.