Last updated: 2026-05-29
Subprocessors
Neurabyte LLC (dba SenderKit) engages the subprocessors below to help provide the Services. This page is referenced by our Data Processing Addendum.
Current subprocessors
| Subprocessor | Purpose | Location |
|---|---|---|
| Vercel | Application hosting, compute, blob storage, and web analytics. | United States |
| Neon | Managed PostgreSQL database. | United States |
| Upstash | Redis for rate limiting and caching. | United States |
| Inngest | Background job and workflow processing. | United States |
| OpenAI | AI-assisted content generation features. | United States |
| Postmark | SenderKit's own transactional and account email (e.g. sign-in links, notifications). | United States |
| Firebase Cloud Messaging (Google) | Push notification delivery for Android and web. | United States |
| Expo | Push notification delivery for Expo-based apps. | United States |
| Apple Push Notification service | Push notification delivery for iOS and Apple devices. | United States |
| Stripe | Payment processing and subscription billing. | United States |
Customer-configured providers
When you connect your own third-party messaging or infrastructure provider (for example Amazon SES, Resend, Mailgun, SendGrid, or Twilio) to send through your own account, that provider acts as your subprocessor under your agreement with them, not as a SenderKit subprocessor. See Section 8 of the Terms of Service.
Changes
We may update this list as our subprocessors change. In accordance with Section 4 of the DPA, we provide a mechanism to notify customers of new subprocessors and an opportunity to object on reasonable data-protection grounds. Questions: privacy@senderkit.com.