# Companies that buy data from closed startups

URL: https://aidataforsale.com/compare/companies-that-buy-startup-data
Publisher: AI Data For Sale (Marketing Signals Ltd)
Updated: 2026-11-10

Who buys emails, Slack, code and other data from shut-down companies for AI training: AI labs, RL environment builders and the platforms that broker the sales.

The buyers and intermediaries in the growing market for data left behind by closed companies, as reported.

## In short

- Buyers include foundation AI labs, vendors building simulated workspaces, and companies training their own models.
- Alphabet paid $10 million for Spirit Airlines' data in August 2026, outbidding Mercor.
- Surge AI buys workplace archives to build agent training environments.
- Intermediaries include SimpleClosure, Sunset and brokers.

## Buyers reported

| Buyer | What they bought or sought | Source |
| --- | --- | --- |
| Alphabet (Google) | Spirit Airlines' emails, Teams messages and records, $10 million | [TravelPulse](https://www.travelpulse.com/news/airlines-airports/google-buys-spirit-airlines-data-for-10-million) |
| Mercor | Bid for Spirit Airlines' data | [MIT Technology Review](https://technologyreview.com/2026/10/13/1145755/ai-labs-buying-data-from-dead-startups-to-train-models) |
| [Surge AI](https://aidataforsale.com/companies/surge-ai) | Slack, email and calendar histories for RL environments | [MIT Technology Review](https://technologyreview.com/2026/10/13/1145755/ai-labs-buying-data-from-dead-startups-to-train-models) |
| SpaceX's AI unit | Reportedly weighing purchases (Bloomberg, September 2026) | [MIT Technology Review](https://technologyreview.com/2026/10/13/1145755/ai-labs-buying-data-from-dead-startups-to-train-models) |
| Foundation labs and simulated-workspace vendors | Code and workspace data via asset platforms | [MIT Technology Review](https://technologyreview.com/2026/10/13/1145755/ai-labs-buying-data-from-dead-startups-to-train-models) |

## Intermediaries

| Intermediary | Model |
| --- | --- |
| [SimpleClosure](https://aidataforsale.com/companies/simpleclosure) | Wind-down service with an Asset Hub; 150+ deals |
| Sunset | Wind-down service with a data resale business |
| AI Data For Sale (us) | Broker introducing vetted buyers under negotiated licenses |

## What buyers look for

Varied archives with real decisions and disagreements, years of history, and clear rights. Valuations rest on estimates of how many useful training tasks the data yields, so documentation matters ([MIT Technology Review](https://technologyreview.com/2026/10/13/1145755/ai-labs-buying-data-from-dead-startups-to-train-models)).

> We are a broker, so we are one of the options on some of these pages. We label ourselves, use the same criteria for everyone and cite sources for every fact about other companies. Read our [editorial policy](https://aidataforsale.com/editorial-policy).

## Read next

- [SimpleClosure alternatives](https://aidataforsale.com/compare/simpleclosure-alternatives)
- [Selling data from a closed company](https://aidataforsale.com/learn/selling-data-from-a-closed-company)

## Questions

### Why do AI companies want dead startups' Slack and email?

To train agents on how real work happens. Real archives show decisions, disagreements and outcomes that synthetic data struggles to reproduce.

## Sources

- [TravelPulse: Google buys Spirit Airlines' data for $10 million (August 2026)](https://www.travelpulse.com/news/airlines-airports/google-buys-spirit-airlines-data-for-10-million)
- [MIT Technology Review: AI labs are buying data from dead startups to train models (October 2026)](https://technologyreview.com/2026/10/13/1145755/ai-labs-buying-data-from-dead-startups-to-train-models)