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Subprocessors

Effective June 22, 2026 · Operated by Deep Thought Technologies Inc.

In plain English

These are the vendors that help us run Printwhisk and may process your data on our behalf. We share only what each one needs, and we'll update this list before adding a new one.

The vendors we use

Stripe, Inc.

United States

Payment processing for wallet top-ups and guest charges

Data shared: Email, billing details, and payment metadata. Stripe handles your card; we never see the full number.

PostGrid

United States / Canada

Printing and USPS mailing of your letters

Data shared: The document PDF and the sender/recipient name and address.

Cloudflare, Inc. (R2)

United States

Encrypted storage of uploaded documents

Data shared: The document PDF, encrypted at rest (AES-256).

Render, Inc.

United States

Application hosting and PostgreSQL database

Data shared: Account, address, job, and wallet data at rest.

Transactional email provider

United States

Sending sign-in links, receipts, and status notifications

Data shared: Your email address and the contents of the message.

Cross-border processing

We operate from the United States. Our print partner is based in Canada and may process the document and address there in order to print and mail your letter, under appropriate contractual protections. See our Privacy Policy for more.

Changes

We keep this list current. If you have questions about a subprocessor, email privacy@printwhisk.com.