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Internet Fundamentals

GDPR for US Startups: When It Applies, and the Minimum Worth Doing

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October 26, 2026

6 min read

GDPR applies to a US company that offers goods or services to people in the EU or monitors their behaviour, even with no office there. What that means in practice, the documents enterprise customers will ask for (a DPA, a subprocessor list, a transfer mechanism such as the EU-US Data Privacy Framework), and the engineering it implies.

Internet Fundamentals
GDPR
Privacy
Data Processing Agreement
B2B SaaS

Article 3(2) of the GDPR extends it to organizations outside the EU that offer goods or services to people in the EU, or monitor their behaviour there. A US app with EU sign-ups, EU pricing or EU marketing is likely in scope. A purely US business that occasionally gets an EU visitor usually is not.

Controller or processor

Role

When

Main duties

Controller

You decide why and how personal data is processed, such as your own users and marketing

A lawful basis, privacy notice, data subject rights, security, records

Processor

You process data on a business customer's behalf, which is typical B2B SaaS

Process only on instructions under a data processing agreement (DPA), security, help the customer with rights requests, list subprocessors

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What B2B customers will ask for

  • A DPA that meets Article 28.

  • A subprocessor list (your cloud, email, support and analytics vendors) and notice before adding one.

  • A transfer mechanism for data leaving the EU: the EU-US Data Privacy Framework, which the European Commission found adequate on July 10, 2023 and which US companies join by self-certifying, or Standard Contractual Clauses.

  • Where data is stored, and sometimes an option to keep it in the EU.

  • Security measures, usually answered by a SOC 2 report or an ISO 27001 certificate.

The engineering it implies

  1. A data map: what personal data you hold, where, why and for how long.

  2. Export and deletion per person, across every store, which the right of access and erasure require.

  3. Consent handling for non-essential cookies and tracking for EU visitors.

  4. Retention limits that actually delete.

  5. Breach procedures that can notify the supervisory authority within 72 hours where required.

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As of October 26, 2026. Provided as is, for general information, and accurate to the best of our knowledge on the date shown. Not legal, compliance, tax, financial or other professional advice. Prices, limits and vendor services change; check current vendor documentation before relying on anything here. Terms of use.