Data brokers · S · checked Sep 30, 2026

How to opt out of StackAdapt Inc.

Published Sep 29, 2026 · Last reviewed Sep 29, 2026 · by Agent Exchange

Registered as a data broker in California: 2024, 2025, 2026 (CPPA registry). Doing business as StackAdapt.
Website: stackadapt.com/ · Based in: Toronto, ON, CANADA.
Opt-out page on its own site: www.stackadapt.com/legal-document-centre/opt-out-of-sale-targeted-adve (fetched Sep 30, 2026).
Rights page declared to the registry: stackadapt.com.
Registered contact: privacy@stackadapt.com · (650) 999-3764.
Collects minors' personal information: no. Declared sensitive categories: precise geolocation, reproductive health care data.
2025 statistics it reported: 5 deletion requests (0 complied in whole, 5 denied, median 2 days); 1,165 opt-out requests (1,163 complied); 2 requests to know.

Steps

Use its opt-out page: www.stackadapt.com/legal-document-centre/opt-out-of-sale-tar; keep a dated screenshot of the confirmation.
Put the deadlines on record: build the request letter (free): it cites the law, dates both deadlines and gives you a ticket number.
California residents: one request through DROP covers StackAdapt Inc. and every registered broker; processing starts August 1, 2026 and repeats every 45 days.
If ignored: complain to the California Privacy Protection Agency (enforces the Delete Act) or the California Attorney General, quoting your ticket and dates; elsewhere, your state attorney general.

Build the request to stackadapt.com Free; you send it; we track the clock.

Is StackAdapt Inc. a data broker?

Yes, by its own registration with the California Privacy Protection Agency for 2024, 2025, 2026: under Cal. Civ. Code § 1798.99.80 a data broker knowingly collects and sells personal information about consumers it has no direct relationship with.

How do I remove my information from StackAdapt Inc.?

Use its opt-out page (www.stackadapt.com/legal-document-centre/opt-out-of-sale-targeted-advertising) or email privacy@stackadapt.com. Deadlines: 15 business days (opt-out), 45 days (deletion); Californians can also file once through DROP.

Related brokers (also declare precise geolocation)

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Sources: CPPA Data Broker Registry (2026 CSV) and stackadapt.com/, read Sep 30, 2026. Registry facts are StackAdapt Inc.'s own declarations. Informational, not legal advice.

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