This page lists every third party that processes personal data on our behalf. Each provider has a signed Data Processing Agreement (DPA). We commit to notifying tenants in advance of any change.
Last updated: April 26, 2026
| Provider | Purpose | Location | Policy |
|---|---|---|---|
| Railway | Hosting platform servers and databases | United States (default) / Europe | Link |
| Hetzner Online GmbH | VPS hosting for production environment (Finland / Germany regions) | Germany / Finland | Link |
| Backblaze B2 | Backup storage and uploaded media files | United States / Europe | Link |
| Cloudflare | CDN, DDoS protection, DNS | United States / Global | Link |
| Provider | Purpose | Location | Policy |
|---|
| Meta Platforms (WhatsApp Business Cloud API) | Sending and receiving WhatsApp business messages on behalf of tenants | Ireland / United States | Link |
| Twilio | Sending SMS messages and OTP codes | United States | Link |
| Resend | Transactional emails (booking confirmations, password resets) | United States | Link |
| Firebase Cloud Messaging (Google) | Push notifications to mobile/web apps | United States | Link |
| Provider | Purpose | Location | Policy |
|---|---|---|---|
| Stripe | SaaS subscription payment processing — we do not store card details | United States / Ireland | Link |
| Provider | Purpose | Location | Policy |
|---|---|---|---|
| Sentry | Error monitoring and platform stability | United States | Link |
We commit to notifying registered tenants of any addition or replacement of a sub-processor at least 30 days in advance, via email to the account admin. You may object to a material change within 14 days by contacting dpo@kaufmanai.com; if we proceed with the provider, you may cancel the account without penalty.
Every sub-processor on this list is bound by one of: (a) GDPR Art. 28-compliant DPA, (b) EU Standard Contractual Clauses for transfers outside the EEA, or (c) a valid adequacy framework (e.g. EU-US Data Privacy Framework). A copy of the DPA is available to ENTERPRISE plan customers on request.
In addition to the list above we may engage consultants, auditors, and legal counsel under privilege and confidentiality. These parties do not act as sub-processors under GDPR unless they handle personal data at meaningful scale.
For any request related to a sub-processor — including a detailed list of data flowing to a specific provider — see the DSAR form or contact dpo@kaufmanai.com.