Can a company sell its Slack and email archives for AI training?

Can you sell internal Slack, Teams or email data?

Yes. In the US no federal law bans a company from licensing its own workplace communications, and buyers are active. A firm that helps startups shut down reported about 100 such data deals in a year, paying $10,000 to $100,000 each, and one closed startup received hundreds of thousands of dollars for its Slack messages, emails and Jira tickets, Fast Company reported, citing Forbes.

Operating companies can license too, but the stakes differ. A closed startup has no employees left to object and no ongoing customer relationships. A running business does, which is why most should license a defined, de-identified slice rather than the whole archive.

What buyers use workplace chat and email for

The demand comes from AI agents: software meant to plan, coordinate and finish work. Training and testing one needs realistic workplaces: how a team triages a bug, negotiates a deadline or escalates a customer problem.

Buyers want varied, deep records with disagreements and judgment calls, and one company's Slack can be worth more than another's Slack, email and calendars combined, MIT Technology Review reported. Sellers interviewed there valued archives by headcount, years in operation, data volume and how heavily the team actually used its tools.

What chat and email archives have sold for

All figures are as reported. Most sales are private and terms are rarely confirmed.

What makes one archive worth more than another

Rights and privacy checks before selling workplace communications

The objection to the airline sale came from employees, not customers. The flight attendants' union told the court employee data is more sensitive than customer data and that de-identified records can still be linked back to people, Fortune reported. Expect the same question about your archive.

• Employee notices and policies. What did your handbook or acceptable-use policy say about monitoring and use of company systems? New York, for one, requires written notice of electronic monitoring of employees (N.Y. Civil Rights Law 52-c).
• Employee privacy rights. California's CCPA has covered employee personal information since January 2023 (California Attorney General). EU and UK staff fall under GDPR.
• Customers and partners inside the archive. Emails with customers may be covered by confidentiality clauses or data processing agreements.
• Privileged and sensitive material. Remove legal advice, HR investigations, health and benefits discussions, and credentials pasted into chat.
• Platform terms. Confirm your plan allows the export you need and that the license covers only data your company controls.

How to prepare an archive without exporting it first

You do not need to move anything to find out whether a buyer is interested. Describe the archive at company level first.

• List the workspaces and mailboxes, the years covered and approximate message counts.
• Name the channels or teams with the most substantive work, such as engineering, support or operations.
• Note what must be excluded: HR, legal, executive and any channel with health or financial details.
• Decide who signs off: an owner, counsel and, where relevant, whoever owns employee communications.
• Only after a buyer confirms interest: agree on de-identification standards, sample size and the license terms in writing.

When not to sell your chat and email

If the useful material cannot be separated from personal or privileged content, if employee notices clearly promised a narrower use, or if your customer contracts prohibit disclosure, the risk is likely larger than the payment. A smaller scope, such as one engineering channel, is often the workable option.

Origin Data Partners is not a law firm. This guide summarizes public sources so you can frame questions for your own counsel. It is not legal advice.