The best B2B intent data and signal providers, graded on where the signal comes from
Every provider in this category sells the same promise: that it knows who is in market before you do. What separates them is where that knowledge comes from. A signal built from your own site visits, one bought from a bidstream, one contributed by a co op of other vendors' customers, one scraped from the public web, and one inferred from a job change are five different products with five different accuracies, decay rates and legal footings, sold under one word. The index grades all 28 providers on that question from public artifacts, and this page publishes the answer.
Assessed 2026-08-29. 249 vendors indexed across the whole index, 28 in this category.
This category documents where its signals go 2.9 times more readily than where they come from. 61 percent of the 28 providers document integration depth at A or B, the CRM fields and sequences a signal lands in. 21 percent state the source class of the signal itself, and 14 percent say how the intent score is computed.
Not one of the 28 vendors clears all 6 of the axes this category is decided on. 17 of them carry a D on at least one. 8 of the 28 publish nothing at all about the model behind the score they sell, which in a category whose entire product is a score is the number to read first.
What 28 vendors actually disclose
6 of the seventeen index axes decide a purchase in this category, and every vendor in it carries a grade on all 6. A grade of A or B means a buyer can check the claim without contacting the vendor. A D records that nothing was found in public sources on the verification date, which is far more often an absence of disclosure than a defect in the product.
| Axis | Documented | Share | Nothing to check |
|---|---|---|---|
|
Data Licensing and Provenance
Where the data comes from and on what legal footing: licensed, contributed, public record, or scraped, and who stands behind the answer. |
6 of 28 | 21 percent | 4 |
|
Data Privacy Posture
GDPR and CCPA posture: lawful basis, data subject rights handling, DPA availability, subprocessor disclosure. |
6 of 28 | 21 percent | 4 |
|
AI Disclosure and Model Transparency
What models power the product, whether AI generated outreach discloses itself, and whether scoring and routing logic is explainable. |
4 of 28 | 14 percent | 8 |
|
Operational and Outcome Evidence
Measured outcomes with a stated basis: replies, meetings, pipeline, win rates. Logos are not evidence and prestige is not measurement. |
9 of 28 | 32 percent | 7 |
|
Ecosystem and Integration Depth
Documented depth of CRM and stack integration: objects, sync direction, API surface, marketplace presence that matches the claims. |
17 of 28 | 61 percent | 1 |
|
Commercial Transparency
Whether a buyer can budget without a sales call. Published pricing graded on completeness, not on the price itself. |
14 of 28 | 50 percent | 6 |
Read the provenance row against the integration row. Integration is what a provider demonstrates in the sales cycle, so it is documented in detail. Source and method are what a buyer discovers when the signal is wrong, and they are documented least.
The 6 providers that say where their signals come from
6 of 28These are the providers graded A or B on Data Licensing and Provenance, ordered by that grade and then by how many of the other five decisive axes they also document. It is not a ranking of signal accuracy, which no outside index can measure, and it is not a ranking of price. It is a ranking of what a buyer can verify about the source before paying for it. Most are indexed primarily in another category, outbound, data or LinkedIn tooling, and appear here because a signal feed is part of what they sell.
| Vendor | Data Licensing & Provenance | Data Privacy Posture | AI Disclosure & Model Transparency | Operational & Outcome Evidence | Ecosystem & Integration Depth | Commercial Transparency |
|---|---|---|---|---|---|---|
|
GTM Workspace by ZoomInfo
4 of 6 documented
|
A | A | C | A | A | D |
|
Lead411
4 of 6 documented
|
B | B | C | C | B | B |
|
Clevenio
3 of 6 documented
|
B | C | B | C | B | D |
|
Neuron
3 of 6 documented
|
B | C | C | C | B | B |
|
Sendr
3 of 6 documented
|
B | C | D | C | B | B |
|
What's Trending
3 of 6 documented
|
B | C | C | C | B | A |
Every grade on this page carries a source basis, and on the deciding axis the mix is worth stating plainly: 25 Vendor Published, 3 Third Party Estimated. That means the provenance picture rests on what providers publish about their own sources, identification methods and data terms. The index records those as claims and dates them; it does not treat a stated source as a verified one, and it does not fill a gap in either direction.
Read the full methodology →6 questions the published materials will not answer
Where the index found nothing to grade, these are the questions that close the gap. Put them in the evaluation, and get the answers in writing rather than on a call.
Which of these is the signal built from: our own site visits, a third party bidstream, a contributed co op, the public web, or job and relationship changes, and in what proportion?
These five sources are not the same product. A vendor that answers with the word proprietary has told you it would rather not say.
How is a visitor or a person identified from the signal, and what is the lawful basis for that identification in each region we sell into?
Identification is where intent data meets privacy law, and the exposure lands on the buyer using the identified record, not on the provider that produced it.
How is the intent score computed, how fast does it decay, and can you show why one account scored higher than another on our data?
A score nobody can interrogate cannot be prioritized against. This is the axis the category grades worst on, and the demonstration on your own accounts is the only answer worth having.
What is the measured lift: pipeline or meetings from signal led outreach against your own baseline, on what population and what period?
Every provider quotes a lift. Ask for the population and the period, and ask whether the baseline was the same team in the same quarter or a different customer entirely.
Where does the signal land in our stack, as a field on the account record or as an alert in a separate inbox, and who owns it at termination?
A signal that lives in the provider’s dashboard is rented. A signal written to the CRM as a field is bought.
What is metered: identified accounts, monitored accounts, signal volume or seats, and what does the bill look like at twice our current list size?
Intent pricing is usually per monitored account or per identified visitor, and both grow faster than a seat count does.
Common questions
How do B2B intent data providers differ in how they collect intent signals?
On five source classes, and the difference between them is the whole product. First party signals come from your own site and product, are the most accurate and the narrowest, and raise the identification question directly. Third party bidstream signals come from advertising exchanges, cover the widest surface and are the most contested on lawful basis. Co op signals are contributed by other vendors' customers and depend entirely on who is in the co op. Public web and social signals are scraped or licensed from open sources and decay fastest. Job and relationship change signals come from employment data and are the most precise about a person and the least about intent. Of the 28 providers in the GTM Tech Index, 6 state which of those classes their signal is built from at a grade of A or B, 18 describe it in terms that cannot be checked, and 4 publish nothing about the source at all. Ask for the proportion, not just the list.
What is the difference between first party and third party intent data?
First party intent is behaviour on surfaces you own: your site, your product, your content. It is accurate because it is direct, narrow because it only sees accounts that already found you, and it raises the identification question immediately, since turning an anonymous visit into a named account is the entire value. Third party intent is behaviour observed elsewhere, on publisher networks, review sites or advertising exchanges, aggregated and sold. It is broad, earlier in the buying cycle, and rests on a chain of consents the buyer never sees. 6 of the 28 providers in this lane document how they identify a visitor or a person and on what basis, which is the axis that decides whether either kind can be used where you sell.
How is an intent score calculated, and can it be trusted?
Rarely in public. 4 of the 28 providers document how the score is computed, what signals weight it and how it decays, at a level a buyer can interrogate, and 8 publish nothing about the model at all. Trust it the way you would trust any model: on a demonstration against your own accounts, with a stated lift over a stated baseline, which 3 of 28 publish with the measurement basis attached. A score that arrives without either is a ranking of the provider's confidence, not of your prospects' intent.
What are the best B2B intent data providers?
The index does not publish a single ranked winner, because the right provider depends on whether the buyer needs to know who is on its own site or who is active elsewhere, and on where it sells. What it does publish is which providers can be checked. 6 of 28 state the source of their signal at a grade of A or B, and those 6 are listed on this page with their grades across the 6 axes this category is decided on. Not one of the 28 clears all 6 at A or B.
The GTM Tech Index is an independent editorial reference. No vendor pays for inclusion, placement, or rating. Grades reflect the public evidence on the verification date and change as vendors publish more. Compliance postures are assessed from published sources and public records; the index is not a law firm and nothing here is legal advice. Vendors who believe a record is wrong are invited to point the index at published documentation through the contact form on any page, and corrections are logged in the change log.