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sunsethq.com

Sunset review: what sellers actually get

Sunset winds startups down, covering the legal, tax and admin steps, and now also deals in data. If a company's records qualify, Sunset pays for the dataset in full and does the licensing to AI labs on its own account.

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AI Data Offers research deskChecked against our methodology Updated October 28, 2026 2 min read 4 sources
Pays companies
Not published
Minimum size
Startups winding down
Time to payment
Not published
Our score
5.6 / 10

In this guide

Our score

5.6 / 10

Buys startup data outright
Pays companies
Not published
Minimum size
Startups winding down
Regions
US
Time to payment
Not published
Exclusivity
Outright purchase
Referral program
Small referral reported

What we like

  • Buys the dataset outright, so no process to run
  • Part of a full wind-down service
  • Named founder and company

Watch for

  • No published prices or founder share
  • Outright sale means no later upside
  • Startup-focused

01

Sunset at a glance

  • Model

    Purchases datasets that qualify, then relicenses them to labs. Describes itself as a principal, not a broker

  • Valuation inputs

    Team size, age of the company, amount of data and depth of tool use (per MIT Technology Review)

  • Main service

    Legal, tax and operational wind-down of startups

  • Company

    Sunsets HQ Corp. (Delaware). Led by founder Brendan Mahony, a 2018 Y Combinator alum

Figures are the buyer's own published claims unless a news source is named.

02

Who Sunset buys from

Its sellers are shutting-down startups. The records it cares most about are code repos, product specs and Slack conversations.

03

What Sunset pays

Neither prices nor the founders' cut appear on Sunset's site. Per MIT Technology Review, its valuation weighs team size, company age, sheer data volume and how heavily staff used their software.

For comparison, competitor SimpleClosure cites 150+ deals, most landing between $10K and $100K.

04

The contract terms

Because Sunset buys outright, it carries the risk of reselling and keeps the upside. Its general asset pages also mention selling, assigning, auctioning or licensing, so ask which applies to your deal.

05

Sunset's referral program

A small referral of around $1K is reported. It is not a program built around introducers.

06

Is Sunset a fit for your company?

Sunset fits a closing startup that wants one fixed payment and the wind-down handled in one place. Find out if your company or its investors share in anything Sunset earns from licensing later.

07

Six checks before you send Sunset anything

We run the same checks on every buyer we rank. They take an afternoon and they protect the one thing you cannot take back: the copy of your records.

  • Find the legal entity. A registered company name, an address and at least one named person. A Facebook form alone is not enough.
  • Get the offer and the contract in writing before any export. A sample agreement tells you more than a sales call.
  • Ask who strips personal data, how, and when. You should approve the method and see a sample before anything leaves your systems.
  • Ask where the data goes. Which AI companies receive it, whether you are told, and whether it can be resold.
  • Ask how everyone is paid. By you, by the buyer, or out of your deal. Referral fees are normal; hidden ones are not.
  • Get a second quote. Terms from at least one other buyer is the fastest way to know if an offer is fair.

FAQ

Questions, answered

Is Sunset a broker or a buyer?

A buyer. Its blog describes paying for the full dataset first and then licensing it to labs itself.

What drives Sunset's valuation?

MIT Technology Review says it looks at team size, company age, total data volume and how much staff relied on their tools.

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Keep reading

Sources

Every number on this page links back to one of these.

  1. 1Sunset homepagesunsethq.com
  2. 2Sunset blog: monetizing startup data in a wind-downsunsethq.com
  3. 3Sunset: termssunsethq.com
  4. 4MIT Technology Review: AI labs buy data from dead startupstechnologyreview.com

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