6sense vs Bombora (2026)
This pair is adjacent more than head to head, and the decision is whether you are buying the signal or a system that acts on it. Bombora sells intent as a weekly scored feed from a publisher cooperative, and it publishes the most complete provenance record in the GTM Tech Index: a tag placed on each member site under direct agreement, consent captured at the publisher, member titles named, bidstream data explicitly refused, and eighty six percent of cooperative signal contributed to it alone. It also publishes how the score works, recent research compared against a twelve week baseline on a scale where anything above sixty marks a real increase. 6sense sells a predictive platform built per customer, with email agents that write, send and reply, and it holds some of the strongest governance evidence in the index, publishing its AI management certificate, its information security certificate and the public form of its SOC 2 report as downloads. Its email agent page also says the personalization makes a message sound like the customer even when the customer is not writing, which grades it D on recipient disclosure. Bombora's feed reaches many buyers inside other platforms that license it, so you may already be paying for it.
- You want the signal acted on rather than delivered. 6sense builds its predictive models per customer, scores buying stage, activates advertising and runs email agents that send outreach and read replies, delivering into customer record and sales engagement platforms, warehouses, a data interface and a Model Context Protocol server, where Bombora supplies a weekly feed for other systems to act on.
- Your security review wants documents before a demo. 6sense publishes its information security certificate, its AI management certificate and the public form of its SOC 2 report as open downloads, files its cloud security questionnaire in the public registry, runs a vulnerability disclosure program and publishes its subprocessor list, where Bombora's public surface shows no certification at all.
- You want opt outs to travel downstream. When a person asks to be removed from 6sense's database, that person is added to a list for every customer, administrators are emailed new entries weekly, and the documented instruction is to purge them from internal systems unless an independent lawful basis exists.
- Your counsel will ask where intent data comes from. Bombora names the mechanism, a tag on each cooperative site under direct publisher agreement writing first party cookies, names member titles, states that it does not use bidstream data and explains why, and traces consent strings so a deletion request can be honored against the specific signal.
- You want to know what a score means. Bombora publishes its method: recent research by an account on a topic is compared against that account's own twelve week baseline and scored weekly from zero to one hundred, with anything above sixty marking a statistical increase, where 6sense publishes no accuracy or validation figure for its buying stage predictions.
- Your stack already has a platform and needs the input. Bombora supplies signal into the systems a team already runs through named activation partnerships and licensing arrangements with several of the larger account based platforms, and its reported entry near thirty thousand dollars a year sits well below the sixty to one hundred thousand third parties report for most 6sense deployments.
This comparison is published by GTM Tech Index, an independent research platform that compares go to market software vendors objectively. 6sense and Bombora are each graded against the same capability taxonomy, from each vendor's own public materials, under the GTM Tech Index verification standard. No vendor pays for placement, and no vendor has reviewed this page. How this evidence is graded
Plain facts
| 6sense | Bombora | |
|---|---|---|
| Primary category | Intent & Signals | Intent & Signals |
| Founded | 2013 | 2014 |
| Headquarters | San Francisco, California, United States | New York, New York, United States |
| Website | 6sense.com | bombora.com |
Side by Side
| Axis | 6 6sense |
B Bombora |
|---|---|---|
|
AI Capability
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| AI Centrality | ||
| Autonomy and Oversight Model | ||
| AI Disclosure and Model Transparency | ||
| Operational and Outcome Evidence | ||
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Compliance and Risk
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| Outreach Compliance Posture | ||
| Data Privacy Posture | ||
| Data Licensing and Provenance | ||
| Platform Terms Exposure | ||
| AI Safety and Data Stewardship | ||
| Recipient Disclosure and Authenticity | ||
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Integration and Deployment
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| Ecosystem and Integration Depth | ||
| Deployment Model and Data Residency | ||
| Security Certifications and Trust Center | ||
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Commercial and Operational
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| Commercial Transparency | ||
| Exit and Data Portability | ||
| Deliverability and Sending Discipline | ||
| Segment and Market Coverage | ||
The short version of each
6sense
6sense is a San Francisco company founded in 2013 as a predictive intelligence engine, selling account identification, patented buying stage prediction built per customer, advertising activation, a sales copilot and email agents that create, send and answer outreach. The GTM Tech Index grades it A on stewardship, for an independently audited AI management certificate published as a download and a separate SOC 2 report scoped to the AI email product, A on security, publishing its information security certificate and the public form of a SOC 2 report covering all five trust criteria, and A on data privacy, with individual notice to people added to its database and California request metrics published as real counts. It takes B on outreach compliance, pushing opt outs to customer administrators weekly, and B on six more. It grades D on recipient disclosure, for marketing email that sounds like the customer when the customer is not writing, D on commercial transparency, and C on outcome evidence, where one page gives two different results for the same customer.
Source: GTM Tech Index, 2026
Bombora
Bombora is a New York based intent data company founded in 2014 that runs a cooperative of business publishers, placing its own tag on each member site under direct agreement and turning the resulting company level research activity into weekly surge scores across tens of thousands of topics. The GTM Tech Index grades it A on data licensing, the most complete provenance disclosure it records, naming member publishers, refusing bidstream data and stating that eighty six percent of cooperative signal is contributed to it alone. It takes B on model transparency for publishing how the score is computed, and B on AI centrality, recipient disclosure, data privacy, platform terms and ecosystem depth, where its feed is licensed into several of the larger account based platforms. It grades D on commercial transparency, publishing no price, and C on security, with no certification or trust center located, while its published processing agreement still carries a May 2018 version date.
Source: GTM Tech Index, 2026
Common questions
Is 6sense better than Bombora?
They are different products. 6sense is a predictive platform with agents, grading A on stewardship, security and data privacy in the GTM Tech Index. Bombora is an intent data feed, grading A on data licensing for the most complete provenance record the index holds. Both grade D on commercial transparency. 6sense's intent layer accepts third party feeds from named providers alongside its own, so the two are not mutually exclusive.
Where does Bombora intent data come from?
From a cooperative of business publishers. Bombora places its own tag on each member site under a direct agreement, the tag writes a first party cookie with consent captured at the publisher, and activity resolves to a company domain rather than a named person. It states that it does not use bidstream data and that eighty six percent of cooperative signal is contributed only to it. Its own pages give the cooperative's size as five thousand and five thousand five hundred sites, pages of different vintages left live. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified September 27, 2026. No vendor pays for placement.
How much do 6sense and Bombora cost?
Neither publishes a price, and both grade D on commercial transparency. 6sense's pricing page describes three packages in detail with no figure attached, and third party sources place most deployments between sixty and one hundred thousand dollars a year, with full enterprise access often above two hundred thousand. Third parties place Bombora's entry near thirty thousand dollars a year for a data feed, with enterprise deployments in six figures, and estimate the tooling needed to act on it at a further forty to one hundred and seventy thousand. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified September 27, 2026. No vendor pays for placement.
Does 6sense disclose that its AI writes the emails?
Its product page says the opposite of disclosure. It describes personalization that makes a message sound like the customer even when the customer is not the one writing, and agents that send outreach, read responses, reply in context and decide when to bring in a person. No page describes marking generated messages or a setting to disclose AI authorship, which is why the GTM Tech Index grades it D on recipient disclosure. 6sense does notify people individually when their records are added to its database.
How does the GTM Tech Index grade 6sense and Bombora?
Both are graded on the same seventeen capability and compliance axes from public sources, 6sense at a documented depth of fifteen and Bombora at sixteen. 6sense takes A on stewardship, security and data privacy, B on seven axes, C on five and D on recipient disclosure and commercial transparency. Bombora takes A on data licensing, B on six axes, C on nine and D on commercial transparency. The index publishes no composite score and declares no winner.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the Intent & Signals page.
The shared silence is proof that intent predicts buying. Neither publishes measured conversion lift for flagged accounts against a matched holdout, and neither publishes an accuracy figure for its prediction: Bombora for whether a surge above sixty corresponds to real buying activity, 6sense for its patented buying stage model.
6sense's own customer pages give one named account an increase of twenty six percent in sales productivity in one place and two hundred and sixty percent in average opportunity value in another. The second shared silence is the end of the license. Both deliver scores into systems the customer runs, and neither states whether previously delivered scores, or segments built from them, may be kept after the contract ends. Two points belong here rather than in the verdict.
6sense takes no stated position on disclosing AI authorship to recipients, which is the subject of article 50 of the European AI regulation. And Bombora's published processing agreement is versioned May 2018, while a page on the European data protection regulation still describes it as coming into effect. The benign reading is that newer instruments exist behind a sales conversation. Ask both in writing for lift against a holdout and for what may be retained after termination.