How do seller-side data advisors work?

By Marin Data team · Updated 2026-10-17

There are four ways to license company records to an AI lab, and each one pays its middleman differently. This guide explains the four routes, who pays whom, what each costs you and what a seller-side advisor should do. For a range on your own records, get a confidential estimate.

What are the four routes?

Go direct to a buyer

Apply to a program such as micro1, Handshake AI, Mode or Turing. Most charge the seller nothing. Mode says it buys directly and charges no broker fee (Mode, observed Oct 16, 2026). You get one buyer’s offer on that buyer’s terms.

List on a marketplace

Platforms such as HUD DataVendor and Opendatabay let you list and sell to many buyers. They take a cut. HUD keeps 20% on bank withdrawals, and Opendatabay sellers keep 70% to 95% of each sale (Who Sells Data, Oct 14, 2026).

Use an intermediary paid by the buyer side

Pewter runs the sale for the owner at no cost to the owner. Its fee is paid by the licensing partner when a deal closes (Pewter, observed Oct 16, 2026). Grepped packages data and lists it to labs, and does not publish its take rate.

Use a seller-side advisor

The advisor’s job is to get you the best terms from whichever buyer offers them. Some charge you a fee. Others, including Marin Data, cost you nothing and are paid referral fees by buyers.

Who pays the people in the middle?

Most of the money flowing to middlemen today comes from buyers. These are published referral bounties as of October 2026:

Buyer Referral payment Source
Grepped 10% of owner payment, capped at $100K Grepped terms, Oct 13, 2026
Mode 6% of the deal or $50K, whichever is greater Who Sells Data, Oct 8, 2026
micro1 Up to $50K, or 7.5% where no amount is listed Who Sells Data, Oct 14, 2026
Scale AI Up to $50K Scale
The General Data Company Up to $50K Who Sells Data
Nyne AI Up to $20K Who Sells Data
Handshake AI $10K Who Sells Data
Turing Up to $10K Turing

Buyer bounties run from 6% to 10% where they are stated as percentages. Marketplace takes run from 5% to 30%. Comparison sites can be paid this way too. Data Licensing Report discloses that its named author earns commission on some Telegraph Lab deals (Data Licensing Report, Oct 14, 2026).

Why does it matter who pays?

Because the payer shapes the advice. A referrer paid by one buyer earns nothing if you sign with another. Buyers’ own terms reflect this. Grepped’s referral terms forbid referrers from presenting themselves as Grepped’s employee or agent (clause 5.4). They also bar referrers from helping a referred owner license through anyone else for 12 months after the terms end (clause 5.5). That is a reasonable term for Grepped. It also means a Grepped referrer cannot shop your records around.

An advisor you pay has an incentive tied to the size of your deal. One paid by buyers, as Marin Data is, should say so up front.

What should a seller-side advisor do?

At Marin Data, the work covers:

  1. Map what you have. Systems, date ranges, volume and how the records connect.
  2. Check rights. Ownership, vendor terms, customer contracts and employee notice. Flag where you need counsel.
  3. Write a one-page brief. A standard summary buyers can price without seeing data.
  4. Take it to several buyers. Matched to each buyer’s floors on headcount, years and geography.
  5. Compare offers side by side. Price, exclusivity, payment timing, de-identification and deletion.
  6. Negotiate. For you, against every buyer.
  7. Support the contract. Help your counsel with the business terms.

It does not include legal advice. It does not include de-identification either, because the buyer does that, and we never hold your raw data.

What does Marin Data charge?

Nothing up front, and nothing at all if no deal closes. Marin Data is paid by the AI lab, never out of your payment, and you choose which buyer to sign with.

When is an advisor worth it?

When more than one buyer is likely to want your records and the terms are worth negotiating. Published bands run from about $10K to $5M per license (our market index). Exclusivity, payment timing and deletion terms vary widely between buyers. An advisor earns its fee when it moves the price or the terms by more than the fee. One data broker, Ryan Lock, said on the NGMI podcast in October 2026 that his co-founder negotiated a first offer up about four times. That is one unverified account, and most gains will be smaller.

It is not worth it when your records are likely to fetch a small amount from a single buyer. A small startup codebase that might fetch about $25,000, as one did according to MIT Technology Review on Oct 13, 2026, is often simpler to take direct or through a wind-down platform.

Questions to ask any advisor or intermediary

  • Who pays you, and how much?
  • Will you take my records to buyers that do not pay you?
  • Will you disclose and credit any payment from a buyer?
  • Do you ever take possession of raw data?
  • Is your fee paid before or after the buyer pays me?

Get a confidential estimate.

Sources

Common questions

What is a seller-side data advisor?

An advisor that represents the company licensing its data. It maps what the company holds, checks rights, takes the records to several buyers, compares offers and negotiates. Some charge the seller a fee when a deal closes; others are paid by buyers. Ask which.

How is that different from a referral partner?

A referral partner is paid by a buyer for sending it companies. Grepped pays 10% of the owner payment, Mode 6% or $50,000, and several buyers up to $50,000 per company (published terms, October 2026). A referrer's payment depends on you signing with that buyer.

What does Marin Data charge?

Nothing up front, and nothing at all if no deal closes. Marin Data is paid by the AI lab, never out of your payment.

Do we need an advisor at all?

No. Most buyers accept direct applications and charge the seller nothing. An advisor is worth paying when competition between buyers, or better terms, are likely to add more than the fee.

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