Free guide

Subprocessor register template for B2B SaaS

A subprocessor register helps buyers understand which vendors touch customer data, why they are used, and where to find the vendor's own security information.

Minimum columns

  • Vendor or subprocessor name.
  • Business purpose, such as hosting, analytics, support, email, billing, or AI assistance.
  • Data handled, written plainly.
  • Region or hosting location if known.
  • Security page, DPA, or trust-center link.
  • Internal owner and review date.

Be clear about AI vendors

If AI tools touch customer data, do not hide them in a vague vendor list. State the tool, approved use, prohibited data, human-review expectation, and how clients can request limits.

Keep it current

A short register reviewed monthly is better than a beautiful spreadsheet nobody trusts. Buyers mainly need evidence that the team knows which vendors exist and can explain why they are there.

Need the full packet?

The Growth Procurement Stack includes the subprocessor register, security questionnaire answer bank, AI disclosure templates, and enterprise pilot documents.

See Growth Stack Open the preview PDF

Scope limit

This guide and the related templates are not legal advice, privacy advice, procurement advice, cybersecurity advice, certification, or a guarantee of buyer approval.