Bombora invented the B2B intent data category. More than a decade after launching, it remains the standard for account-level intent signals, built on a cooperative data model no competitor has replicated. Forrester called it "the gold standard" for account-level intent data feeds in its Q1 2025 Wave evaluation. But Bombora is a data company, not a platform, and that distinction shapes everything about how you'll use it.
To write this Bombora review, we analyzed it extensively. We believe it's the right choice if:
You need high-quality third-party intent data to feed into platforms you already use
You value consent-driven, privacy-compliant data collection over scale at any cost
You want intent signals that integrate across multiple tools without vendor lock-in
Your team already operates a mature GTM stack (CRM, MAP, ABM platform) and needs a dedicated data layer
You care about signal exclusivity and want data that competitors cannot replicate
However, Bombora might not be the best choice if:
You need contact-level data (emails, direct dials, org charts) alongside intent signals
You want to act on intent data within the same platform that generates it
You're looking for a self-serve product with transparent pricing and a free trial
Your team needs a single platform covering prospecting, outreach, and campaign execution
You want person-level intent, not just account-level signals
In this case, you should consider ZoomInfo: a GTM platform that combines intent data with a large B2B contact database (500M contacts, 100M companies, 135M+ verified phone numbers, 120M direct dials, and 200M+ verified business emails), an intelligence layer called the GTM Context Graph, and tools for sellers, marketers, and developers.
Where Bombora tells you which companies are researching, ZoomInfo tells you which companies are researching, who to contact there, and helps you reach them.
We've included a detailed look at ZoomInfo at the end of this Bombora review. If you'd like to explore a platform that combines intent data with contact intelligence and outreach tools, you can start with ZoomInfo's free trial here.
What is Bombora?
Bombora is a B2B intent data provider founded in 2014 in New York City by Erik Matlick and Mike Burton.
Both co-founders came from B2B advertising technology, and their founding insight was simple: B2B publishers generated enormous volumes of behavioral data (content consumption, downloads, registrations) with no way to aggregate it for the broader market.
Their solution was a cooperative model. Publishers contribute anonymized behavioral data to Bombora's Data Co-op, which now encompasses 200+ publishers and brands across 5,500+ B2B media sites. In exchange, publishers receive aggregated intent insights. Every new participant makes the dataset more valuable for all members.

The company's flagship product, Company Surge, identifies when a company's content consumption around a given topic spikes above its historical baseline, signaling active research behavior.
Beyond intent data, Bombora offers Identity and Enrichment for website visitor identification, Digital Audiences for programmatic advertising, B2beacon for campaign measurement, and the Insights Suite for data visualization.

Bombora employs about 160 people and remains private, having opted for a $20M growth debt facility from Runway Growth Capital in 2021 rather than dilutive venture capital. It earned Forrester Wave Leader recognition for Intent Data Providers (Q1 2025) and IDC MarketScape Leader status for Sales Intelligence Applications (2025).
Bombora Pros & Cons
Pros | Cons |
|---|---|
Data Co-op with 86% exclusive data sources | No self-serve plan, free trial, or public pricing |
20,100+ intent topics with NLP classification | Account-level intent only, not individual-level |
100% consent-driven data collection | No native execution or engagement tools |
100+ platform integrations across the GTM stack | Requires separate tools to act on insights |
Dual analyst recognition (Forrester Leader, IDC Leader) | Geographic coverage weighted toward North America |
Vendor-neutral, no platform lock-in | Sales-only purchasing process excludes smaller teams |
Captures gated and paywalled content consumption | No contact database or direct-dial phone numbers |
Bombora Review: How It Works & Key Features
Intent Data (Company Surge): Bombora's flagship product identifies which companies are actively researching topics relevant to your business
Company Surge is the product Bombora credits with inventing the category of B2B intent data.
It solves a specific problem: without intent data, sales and marketing teams spend equal effort on cold and warm accounts, burn budget on companies nowhere near a buying decision, and lose deals to competitors who reached an account first. The data originates from Bombora's Data Co-op, where a JavaScript tag deployed on publisher websites captures engagement from gated content, paywalled articles, whitepapers, form fills, downloads, and registrations.
This matters because competitors that rely on bidstream data (ad auction metadata) can only see ad-served pages and miss research happening behind registration walls or on sites that don't run programmatic advertising.
The scoring methodology compares a company's current research consumption against its own historical baseline. Rather than measuring absolute volume, Company Surge detects statistically significant deviations. Scores run from 0 to 100, with 60 or above indicating a "surge" on a given topic. Scores update weekly.
Bombora's topic taxonomy contains over 17,000 B2B topics and uses NLP models that classify by concept rather than keyword matching. The system distinguishes between "Mercury" the planet, "Mercury" the element, and "Mercury" the software vendor, for example, eliminating false positives that plague keyword-based approaches.
The data integrates with 100+ platforms including Salesforce, HubSpot, 6sense, Apollo, LinkedIn, Marketo, RollWorks, and Adobe. Notably, 6sense (which competes with Bombora in intent data) remains a Bombora distribution partner, illustrating the unusual position Bombora occupies as infrastructure for competing platforms.
Identity and Enrichment: Bombora decodes anonymous website visitors into structured B2B data
On average, about 97% of B2B visitors remain anonymous. Bombora's Visitor Insights suite identifies these visitors and enriches their profiles with firmographic, geographic, demographic, and behavioral data.
The system uses a patented methodology that combines three signal types: deterministic signals (IP correlation, first-party cookies, hashed business emails), IP-to-company mapping, and a deep learning model that identifies when web traffic comes from company employees on residential networks.

This last capability matters because 53% of U.S. workers reported working hybrid in 2024, meaning traditional IP-to-company mapping misses a large share of business traffic.
Bombora reports a 74% match rate across more than 8.5 million accounts globally. Identified visitors can be turned into addressable digital audiences for retargeting, and the data syncs across CDPs, CRMs, and CMSs with no limitations on downstream use.
Box used Visitor Insights to serve tailored homepage experiences and achieved a 75% conversion lift in an A/B test.
Digital Audiences: Bombora transforms account-level and persona-level data into addressable advertising segments
Bombora’s Digital Audiences bridges the gap between knowing which companies are in-market and reaching the right people at those companies with advertising.
The product offers 600+ B2B audiences predefined by function, role, seniority, and B2B interest area, plus custom segments built from 6,350 targeting attributes with 20,100+ intent topics as layerable signals.

Audiences deploy across CTV, display, and social channels and activate across leading DSP, SSP, and DMP platforms. Bombora claims audiences 5x larger than other B2B audience providers across key segments, powered by 3B+ targetable IDs.
In October 2025, Bombora launched Curated Ecosystem Audiences with founding partners Crunchbase, Definitive Healthcare, G2, and HG Insights, extending the cooperative model to third-party B2B data sources converted into addressable segments.
Campaign Measurement (B2beacon): Bombora measures B2B campaign performance at the account and persona level
Bombora's B2beacon addresses a real gap: consumer measurement tools cannot account for how B2B buying works, where committees research purchases, sales cycles run long, and most of the journey happens before a vendor is contacted.

Rather than relying on pixel tags, B2beacon uses log-level integrations with leading DSPs and SSPs, producing match rates above 90%. Coverage spans DV360, Amazon DSP, Yahoo DSP, Viant, Basis, and Simpli.fi via an OpenX integration.
The product is delivered on-demand without ABM platform subscriptions or long-term commitments, making it one of Bombora's more accessible offerings.
Insights Suite: Bombora provides a visualization layer across intent, visitor, and campaign data
Bombora’s Insights Suite sits on top of Company Surge, Visitor Insights, and B2beacon, presenting three dashboards in a single interface.

Market Insights covers TAM sizing by intent topic, intent trends over time, and brand health monitoring versus competitors. Visitor Insights dashboards display de-anonymized site engagement enriched with firmographic and intent data. B2beacon dashboards show campaign performance across accounts and buying group personas.
Bombora designed the suite so that no dedicated analyst is needed, a practical consideration for teams without in-house data science resources.
Where Bombora Falls Short
Bombora's limitations follow directly from its "data company, not a platform" philosophy. That positioning is a legitimate strategic choice, but it creates gaps that matter for certain buyers.
No Contact Data or Execution Layer: Bombora can tell you that Company X is researching "CRM software" with unusual intensity. It cannot tell you the name, email, or phone number of the person doing that research. And it provides no tools to reach them.
Every action on Bombora data requires a separate platform: a CRM for contact records, a sales engagement tool for outreach, an ABM platform for advertising. For teams that want fewer vendors, Bombora's value depends on what you connect it to.
Account-Level Only, Not Person-Level: Company Surge measures company-level research behavior. It cannot identify which individual at a company is doing the research.
Bombora's Identity and Enrichment and Digital Audiences products partially address the gap, but they are add-on layers with separate pricing, not built into the core Company Surge product. Buyers needing person-level intent must combine Bombora with identity resolution tools or contact-level data providers.
No Self-Serve Access or Public Pricing: Bombora has no self-serve tier, no free trial, no freemium plan, and no publicly listed pricing. Every customer relationship starts with a sales conversation.
This creates a real barrier for smaller companies, early-stage teams, or buyers who want to evaluate data quality before committing. The only confirmed trial is a partner-specific trial with SalesIntel for existing Bombora customers.
Geographic Coverage Concentration: The Data Co-op is primarily composed of English-language B2B publishers, which concentrates signal quality in North America. While Bombora claims geographic coverage as a Forrester strength, signal depth for APAC, LATAM, and non-English European markets is thinner.
Integration Dependency: Because Bombora is a data layer, the customer experience depends largely on how downstream platforms surface the data.
Forrester noted that "the intent-specific reporting" available to direct customers is the best in this evaluation, but the partner-delivered experience varies. A buyer accessing Bombora data through HubSpot will have a different (and possibly more limited) experience than one using Bombora's own Insights Suite.
These limitations don't diminish Bombora's data quality. They reflect the constraints of choosing to be infrastructure rather than a platform, and they create a clear opening for tools that combine intent data with the contact intelligence and execution capabilities needed to act on it.
Top Bombora Alternative: ZoomInfo
ZoomInfo addresses Bombora's gaps by offering intent data as one component of a GTM platform rather than a standalone data feed.
Where Bombora provides the signal, ZoomInfo provides the signal, the contacts, the intelligence, and the tools to act on them in one place.
Comprehensive B2B Data: ZoomInfo pairs intent signals with a large verified contact and company database
The core limitation of standalone intent data is the gap between knowing a company is researching and knowing who to call.
ZoomInfo closes that gap with a verified B2B database of 500M contacts, 100M companies, 135M+ verified phone numbers, 120M direct dials, and 200M+ verified business emails. This data is verified through a multi-source pipeline backed by 300+ human researchers and reaches up to 95% accuracy on first-party data.
In a Fortune 500 competitive RFP analyzing 25 million contacts across vendors, the independent consultant concluded that "no other competitor came even close."
ZoomInfo's own intent data tracks signals from 210M IP-to-Org pairings and 6T+ new keyword-to-device pairings sourced monthly. Guided Intent, exclusive to ZoomInfo, identifies topics historically correlated with deal success rather than requiring manual topic selection.

ZoomInfo also earned Forrester Wave Leader recognition for Intent Data Providers (Q1 2025), receiving the highest possible scores across eight criteria.
The practical difference: when ZoomInfo's intent data identifies a surging account, you can immediately see the buying committee, pull verified direct dials and emails, and launch outreach without leaving the platform or purchasing a separate contact database.
GTM Context Graph: ZoomInfo's intelligence layer captures not just what's happening in a deal, but why
Bombora's Company Surge tells you a company is researching a topic.
ZoomInfo's GTM Context Graph combines that kind of signal with your CRM records, conversation transcripts from calls and meetings, email interactions, and behavioral data into a layer that processes 1.5B + data points daily.

A CRM records that a deal moved from Stage 3 to Stage 4. Conversation intelligence transcribes what the VP of Finance said on the last call. Intent data logs a spike in research activity. The GTM Context Graph connects all three to explain why the deal moved, linking executive sponsorship at this stage with ROI-focused questions and third-party signals showing the company is hiring and researching competitors.
This contextual intelligence powers every downstream action: AI-drafted follow-up emails that address specific concerns raised on calls, plays targeting accounts whose signal combinations match actual win patterns, and forecasts weighted by buying evidence rather than stage labels.
Seismic attributed 39% of active pipeline to opportunities identified or influenced by ZoomInfo signals and reported being 54% more productive.
Execution Tools: ZoomInfo delivers intelligence through interfaces designed for each GTM role
Bombora's data lives inside other people's platforms. ZoomInfo provides three native interfaces so teams can act on intelligence without stitching together separate tools.
GTM Workspace is the seller's front-end: a workspace where prioritized accounts, AI-drafted outreach, and deal execution converge. AI agents handle account research, outreach generation, CRM updates, and signal monitoring.
GTM Studio serves marketers, RevOps, and GTM engineers with an orchestration canvas. Teams describe audiences in natural language, launch multi-channel plays, and measure pipeline impact without engineering support. Expansion plays that used to take three weeks now launch in 30 minutes.

For teams building beyond ZoomInfo's own products, APIs and MCP expose the same intelligence to any custom agent, internal tool, or partner platform. API access is included in all relevant plans.
Pricing Accessibility: ZoomInfo offers free entry points that Bombora does not
ZoomInfo provides two ways to evaluate the platform before committing.
ZoomInfo Lite is a permanent free tier (no credit card, no time limit) with access to the B2B database, 10 monthly export credits, individual and company searches, a Chrome extension, and WebSights Lite for up to 10 website visitor reveals per day. A separate 7-day free trial provides access to core platform features including intent signals.

Paid plans are custom-quoted across Sales, Marketing, and ABM tiers, with pricing based on seats, credits, features, and contract length. Like Bombora, ZoomInfo does not publish dollar amounts for paid tiers.
Bombora or ZoomInfo: Comparison Summary
Bombora | ZoomInfo | |
|---|---|---|
Core positioning | B2B intent data provider | AI GTM platform |
Intent data source | Data Co-op (5,500+ media sites) | 210M IP-to-Org pairings, 6T+ keyword-to-device pairings monthly |
Intent data exclusivity | 86% exclusive to Bombora | Guided Intent exclusive to ZoomInfo |
Contact database | None | 500M contacts, 100M companies, 135M+ verified phones, 120M direct dials, 200M+ verified emails |
Intent resolution level | Account-level only | Account-level + contact-level identification |
Native execution tools | Data feeds and dashboards only | GTM Workspace (sellers), GTM Studio (marketers/RevOps) |
Conversation intelligence | Not available | Chorus (call recording, transcription, AI analysis) |
Campaign measurement | B2beacon (on-demand, no lock-in) | Display advertising with native DSP |
Digital audiences | Cross-channel advertising with 300+ company attributes | |
Free tier | None | ZoomInfo Lite (permanent, no credit card) |
Free trial | None | |
Integrations | 120+ marketplace integrations + API + MCP | |
Analyst recognition | Forrester Leader (Intent Data, Q1 2025); IDC Leader (Sales Intelligence, 2025) | Forrester Leader (Intent Data, Q1 2025); Gartner Leader (ABM Platforms, 2024 & 2025) |
Privacy compliance | GDPR/CCPA, 100% consent collection, IAB member | ISO 27001, ISO 27701, SOC 2 Type II, TRUSTe GDPR/CCPA |
Best for | Teams needing dedicated intent data as infrastructure for existing tools | Teams wanting intent data, contact intelligence, and execution in a single platform |
Final Verdict
The choice between Bombora and ZoomInfo depends on what you need intent data to do.
Choose Bombora if you need high-quality third-party intent data as a dedicated layer for your existing GTM stack. Bombora's Data Co-op, with its 86% exclusive data sources and consent-driven collection across billions of events, produces intent signals that Forrester considers the industry standard.
If your team already has the contact data, the CRM, the outreach tools, and the ABM platform, and simply needs accurate, exclusive intent signals feeding into those systems, Bombora delivers that without forcing you to change your workflow.
Choose ZoomInfo if you want intent data as part of a broader intelligence and execution platform rather than a standalone data feed. ZoomInfo combines its own intent signals with a B2B database (500M contacts, 135M+ verified phone numbers, 120M direct dials, and 200M+ verified business emails), conversation intelligence, and execution tools, so the path from "this account is surging" to "here's an email to the right decision-maker" happens inside one system.
For teams that want fewer vendors in their stack, or that need the contact data and execution tools they'd otherwise buy separately, ZoomInfo provides the complete package.
Get started with ZoomInfo for free here.
The core difference is scope. Bombora does one thing (intent data) with high quality and deliberate neutrality. ZoomInfo builds intent data into a broader system where signals, contacts, intelligence, and execution converge. Your choice depends on whether you need the best data layer for a stack you've already built, or a single platform that handles the data, the intelligence, and the action.
Bombora FAQ
What is Bombora's Data Co-op?
Bombora's Data Co-op is a network of over 200 publishers and brands encompassing 5,500+ B2B media sites. Publishers contribute anonymized content consumption data (page views, downloads, form fills, registrations) in exchange for aggregated intent insights.
Bombora places a JavaScript tag on publisher pages, capturing engagement from gated, paywalled, and open content. 86% of this data is shared exclusively with Bombora, meaning no other intent data provider can reproduce the same signals.
Does Bombora offer a free trial or free plan?
No. Bombora has no self-serve tier, free trial, freemium plan, or publicly listed pricing. Every customer engagement begins with a sales conversation. The only confirmed trial offer is a partner-specific 1-month trial through SalesIntel for existing Bombora customers. ZoomInfo, by contrast, offers a permanent free tier (ZoomInfo Lite) and a 7-day free trial with no credit card required.
Can Bombora identify individual buyers, or only companies?
Company Surge operates at the account level. It identifies that a company is researching a topic with unusual intensity, but it cannot pinpoint which individual is doing the research. Bombora's Identity and Enrichment and Digital Audiences products help bridge this gap by resolving website visitors and building persona-level advertising segments, but these are separate products with separate pricing.
ZoomInfo combines account-level intent with a contact database of 500 million profiles, including verified direct dials and business emails.
What integrations does Bombora support?
Bombora integrates with over 100 platforms spanning CRM, marketing automation, sales enablement, ABM, digital advertising, and data science tools. Key integrations include Salesforce, HubSpot, 6sense, Apollo, LinkedIn, Marketo, RollWorks, Cognism, Lusha, and Adobe. Bombora also offers API access through its Developer Portal for custom integrations.
Because Bombora is a data layer rather than a platform, all activation and execution happens within these downstream tools.
How does Bombora's intent data differ from bidstream-based providers?
Bidstream intent data comes from ad auction metadata and is limited to ad-served pages, missing research that happens behind registration walls, paywalls, or on sites without programmatic advertising.
Bombora's Data Co-op captures full engagement from gated content, whitepapers, and subscriber publications through its JavaScript tag on publisher pages. Bombora also uses NLP-based topic classification rather than keyword matching, which reduces false positives from ambiguous terms.
Is Bombora compliant with GDPR and CCPA?
Yes. Bombora collects consent in 100% of the billions of events it captures. The Bombora tag sits behind each Co-op member's Consent Management Platform, ensuring explicit informed consent or opt-out.
Bombora has adopted the IAB Transparency and Consent Framework v2.2 and self-classifies as a Service Provider under CCPA. Its data collection builds business profiles rather than profiles of individuals, a distinction that matters as enterprise procurement teams scrutinize vendor data practices more closely.
How does Bombora's pricing work?
Bombora uses a sales-led, custom-quote pricing model. Products are sold modularly, meaning customers contract for specific combinations of Company Surge, Identity and Enrichment, Digital Audiences, B2beacon, and the Insights Suite.
Pricing depends on the combination of products, number of intent topics selected, volume of data consumed, and integration requirements. B2beacon is the exception, delivered on-demand without long-term commitments on a campaign-by-campaign basis.
Who should use Bombora versus ZoomInfo?
Bombora is built for mid-market to enterprise B2B teams that already have a mature GTM stack (CRM, marketing automation, ABM platform) and need high-quality intent signals feeding into those systems. ZoomInfo is built for teams that want intent data combined with contact intelligence, conversation analytics, and execution tools in a single platform.
If your primary need is dedicated intent data infrastructure, Bombora specializes in that. If you need intent signals alongside contact data, outreach tools, and campaign execution without managing multiple vendors, ZoomInfo provides a broader solution.

