Sunset wind-down review: how it buys a closing startup's data, and its link to Replay

Sunset, a flat-fee wind-down service for startups, says it buys a closing startup’s dataset outright and then licenses it to AI labs and research partners, so the closing company is paid by Sunset (Sunset, April 2026). It publishes no prices; Forbes reported in April 2026 that it buys at prices similar to SimpleClosure’s, which typically pays $10,000 to $100,000 per company. The corporation behind Sunset also runs Replay, which makes a different offer to companies that are still operating (as of October 2026).

How are Sunset and Replay related?

They are two brands of one company. The terms on Sunset’s and Replay’s sites both name Sunsets HQ Corp., a Delaware corporation at 55 Washington Street, Brooklyn. Sunset’s About page names Brendan Mahony as founder and CEO; Replay’s About page carries a statement from its unnamed founder and CEO, “I started one called Sunset,” and Crunchbase lists Mahony as Replay’s founder and CEO from September 2025. Sunset’s own pages do not mention Replay (checked October 5, 2026).

The two offers are built differently, as of October 2026:

	Sunset	Replay
Written for	Founders winding down a startup (Sunset)	Operating companies, including ones with no urgent reason to sell (Replay profile)
How the company is paid	Sunset says it buys the dataset and licenses it on itself	“You’re paid up front, plus a revenue share of every license” (Replay)
Published prices	None; Forbes: similar to SimpleClosure’s	Headcount tiers starting at $10K to $100K for 20 to 50 employees (Replay)

A closing company may hear from either brand. Ask which brand’s agreement an offer sits under before comparing it with anyone else’s: one is a single purchase price, the other combines cash with a share of later licenses, and upfront payment or revenue share explains how those divide risk.

Is Sunset the buyer or a broker?

Its own posts say both. On March 23, 2026, Sunset described a service “connecting you with a network of potential buyers” and helping founders negotiate terms. On April 14, 2026 it wrote, “We don’t act as a broker or ask founders to run a process”, and said it purchases the dataset directly, handles structuring and compliance, and takes responsibility for licensing it to downstream partners. The April post is the later and more specific of the two, and Forbes reported the same month that Sunset “also buys defunct company data.”

The difference decides who signs with you and who pays you. Ask Sunset to confirm in writing that Sunsets HQ Corp. is the buyer on the contract.

Who can sell data to Sunset?

Startups that are winding down. Its April post is addressed to “founders winding down a startup,” and the description of its product page lists data monetization among the parts of a wind-down it handles. Readers are sent to the general wind-down application or a booked call; Sunset publishes no separate form for selling data and does not say whether a company that is not a wind-down client can sell it data (checked October 5, 2026). TechCrunch reported in 2024 that its wind-down clients spanned industries including AI, crypto and B2B software (TechCrunch).

A company that will keep operating is outside what Sunset describes; Replay is the same company’s offer for that case, and the buyers directory lists others.

What does Sunset pay, and does it reduce the wind-down fee?

Sunset publishes no price for data. The only figure is the one Forbes reported: prices similar to SimpleClosure’s typical $10,000 to $100,000 per company. Brendan Mahony told Forbes the price depends on the company’s size, its age and “data richness,” explaining that a Jira ticket tied to a specific code commit is worth more than a standalone document, and added that healthcare and finance data command a premium.

The wind-down is billed separately. Sunset charges “a single, flat fee” for legal, tax and operations, set in each service agreement and non-refundable once work starts (terms). It does not say whether a data purchase offsets that fee, or when the purchase price is paid. The “Acme’s Asset Auction” on its assets page, showing $305,500 in bids, is a sample screen for a company called Acme, not a reported sale.

What happens to the data after Sunset buys it?

Sunset licenses it on to “AI labs and research partners” (Sunset). Because it buys outright, the post describes no share of those later licenses for the seller and no limit on how many labs receive the data. It says every dataset goes through a “rigorous process” to be fully anonymized and stripped of personally identifiable information, without describing the method or what is excluded. Its March post counts “internal data, product logs, and user behavior” among potentially valuable assets, so records of how customers used the product may be in scope alongside chat and code.

Sunset’s privacy policy, updated July 21, 2026, and its terms cover its own clients’ information and say nothing about datasets it buys. Settle anonymization, exclusions and deletion of the raw data in the purchase agreement; What does “anonymized” mean? lists what to ask for.

Who runs Sunset, and what is its record?

Brendan Mahony, whom the About page names as founder and CEO, runs it through Sunsets HQ Corp., a Delaware corporation in Brooklyn. TechCrunch reported in February 2024 that Sunset was founded in August 2023 and had raised a $1.45 million seed round, mainly from angel investors including Hustle Fund’s Eric Bahn; it named Grant Rheingold as a co-founder alongside Mahony (TechCrunch). The current About page names only Mahony.

Its homepage says it has “Redistributed $100s of millions” to investors through wind-downs and shows testimonials from founders of startups it closed; it publishes no count of data purchases. Forbes’s April 2026 article is the only independent coverage of Sunset’s data buying that Data Licensing Report found as of October 2026.

What should I ask Sunset before selling it our data?

Ask who is buying, when you are paid and what happens to the data afterwards:

1. Is Sunsets HQ Corp. the buyer on the contract, or will another party buy the data?
2. What is the price, and when is it paid: at signing, on delivery or after anonymization?
3. Does the data payment offset the wind-down fee, and can we sell data without using the wind-down service?
4. How many labs will receive the data, and do we receive anything from later licenses?
5. Who anonymizes the data, are HR, health and customer records excluded, and what consents do you need from us?
6. When is the raw data deleted?