Why do GTM teams choose ZoomInfo over D&B Hoovers?
D&B Hoovers gives you data to research and build lists. ZoomInfo gives you the data, the intelligence layer, and the execution tools to act on it without switching platforms.
95%+ verified data accuracy
ZoomInfo's first-party data reaches 95%+ accuracy backed by 300+ human researchers, versus the ~70% accuracy some Gartner reviewers report for D&B Hoovers, including outdated or deceased contacts.
An execution layer, not just a database
ZoomInfo's GTM Context Graph fuses your CRM, Chorus conversation transcripts, and behavioral signals so AI agents can draft outreach and prioritize next actions. D&B Hoovers hands data off to separate engagement tools.
Native conversation intelligence
Chorus captures and analyzes sales calls natively within ZoomInfo, feeding signals into the GTM Context Graph. D&B Hoovers has no conversation intelligence product.
ZoomInfo vs. D&B Hoovers: Features comparison
Compare ZoomInfo directly to D&B Hoovers from a high-level against core features.
Features |  |  |
|---|---|---|
Best for | Teams wanting data, intelligence, execution, and AI agents in one platform | Teams needing compliance-grade data, D-U-N-S hierarchy, or D&B ecosystem workflows |
Database scale | 330M+ companies, 520M+ contacts from a 600M+ business Data Cloud | |
Data accuracy | 95%+ first-party verified, backed by 300+ human researchers | ~70% reported in Gartner reviews, including outdated or deceased contacts |
Corporate hierarchy | Parent-child hierarchy and org charts | D-U-N-S-anchored family trees and Decision HQ, globally recognized |
Intent data | Native, with Guided Intent included on Advanced+ tiers | Three separate add-ons: Bombora, Custom Intent, Visitor Intelligence |
Native outbound | Built-in workflows, dialing, email, and Salesloft partnership | None; email drafting only, no sequencing or dialing |
Conversation intelligence | Chorus, native | Not included |
Pricing transparency | Flexible packages and the option to start using for free via consumption-based pricing at GTM.AI; ZoomInfo Lite also available | Essentials: $49/month or $529/year; Enterprise custom-quoted |
D&B Hoovers vs. ZoomInfo: corporate hierarchy and compliance-grade data
D&B Hoovers' strongest advantage is something no startup competitor can replicate: the D-U-N-S Number system and the 184 years of commercial data it anchors.
D&B Hoovers' hierarchy data
Every company in the D&B Data Cloud carries a unique nine-digit D-U-N-S identifier, enabling corporate family tree mapping with individually identified subsidiaries, ultimate parent companies, and Decision HQ buying centers within complex enterprise hierarchies. The platform also includes Spend Capacity, which ranks a company's spending levels relative to industry peers. D&B Healthcare Insights and D&B Technology Insights are vertical-specific add-on datasets layered directly into the Hoovers UI. Roughly 92% of Fortune 500 companies use D&B data and analytics, and for companies whose workflows are already built on D-U-N-S Numbers for credit, procurement, or compliance, switching carries a real workflow-dependency cost.
ZoomInfo's hierarchy data
ZoomInfo provides parent-child hierarchy and org charts as part of its broader data foundation of 500M contacts and 100M companies, layered with an intelligence layer that fuses this data with CRM records and behavioral signals. ZoomInfo does not offer a D-U-N-S-equivalent identifier system; its hierarchy data is built for GTM prioritization rather than credit, procurement, or government-contracting compliance.
Where the data quality gap matters most
For sales teams, data accuracy is not an abstract metric. It is a connect-rate problem.
ZoomInfo's data accuracy
ZoomInfo's first-party verified data achieves 95%+ accuracy, maintained by 300+ human researchers who continuously verify contacts across 500M records, 200M+ business emails, and 135M+ verified phone numbers. The verification approach is multi-source: automated signals, community-sourced updates from the ZoomInfo user network, and human researchers reviewing records before they are surfaced to customers.
D&B Hoovers' data accuracy
Multiple Gartner reviewers flag D&B Hoovers data freshness and accuracy concerns at the platform level, reporting outdated, retired, or even deceased contacts, with some citing accuracy around 70% on the contacts they attempted to reach. That means roughly three out of ten dials go to a wrong number, a disconnected line, or a contact who left the company months ago.
ZoomInfo's GTM execution layer vs. D&B Hoovers
D&B Hoovers is a research and list-building tool. When a user finishes building a prospect list, they export it to a CRM, route it to a separate engagement tool, and manually trigger the outbound sequence. The intelligence stays in D&B Hoovers; the execution happens elsewhere.
ZoomInfo's execution layer
ZoomInfo is built to eliminate that handoff. The GTM Context Graph fuses ZoomInfo's B2B data with your CRM records, Chorus conversation transcripts, and behavioral signals from 1.5B+ data points processed daily. GTM Workspace is the seller-facing surface for AI-powered prospecting, email drafting, CRM updates, and next-action prioritization, while GTM Studio gives marketers and RevOps teams natural-language audience building and campaign orchestration.
D&B Hoovers' execution tools
D&B Hoovers has SmartSearch AI for query-based filtering and SmartMail AI for email drafting, launched in August 2024. These are productivity features inside the prospecting UI, not a reasoning layer that reads CRM records, call transcripts, and deal history to inform every recommended action.
Conversation intelligence: ZoomInfo Chorus vs. nothing in D&B Hoovers
D&B Hoovers has no conversation intelligence product. There is no call recording, no transcript analysis, no deal risk identification from call patterns, and no integration that feeds sales conversation signals back into the prospecting and prioritization workflow.
ZoomInfo's Chorus
ZoomInfo includes Chorus as a native, active standalone product. Chorus records, transcribes, and analyzes sales calls, surfacing deal risk signals, competitive mentions, and coaching opportunities from every customer conversation, and feeds those signals directly into the GTM Context Graph. When an AI agent in GTM Workspace recommends the next action for a deal, it is drawing on what was actually said in the last call, not just firmographic data about the account.
D&B Hoovers vs. ZoomInfo: pricing comparison
D&B Hoovers has unusual transparency for an enterprise data vendor at the entry tier, but the full platform is fully gated.
D&B Hoovers' pricing
The Essentials tier offers public, self-serve pricing: $49/month for 150 Company Credits and 150 Contact Credits, or $529/year for 1,800 Company Credits and 1,800 Contact Credits, with a free first month. The full enterprise D&B Hoovers platform is custom-quoted and fully gated, and vertical add-ons, the Salesforce integration, and intent data add-ons are all negotiated on a custom contract basis.
ZoomInfo's pricing
ZoomInfo offers flexible, scalable pricing tailored to your business goals, whichever area of the go-to-market team you're in. There's also the option to start using ZoomInfo for free, headless via GTM.AI, which runs on a consumption-based model for GTM Engineers and developers in the space. ZoomInfo Lite is also available as a free tier for teams wanting to evaluate the platform before committing to an enterprise contract, and enterprise pricing is custom-quoted based on team size, modules, and usage volume. For teams comparing total cost of ownership, a D&B Hoovers enterprise contract typically needs to be supplemented with separate tools for outbound sequencing, conversation intelligence, and intent data, while ZoomInfo's full platform includes those capabilities under one contract.
Why are teams switching to ZoomInfo?
Teams switch to ZoomInfo when they need more than enrichment. With stronger data, better workflows, and real results, it’s the clear choice for revenue teams ready to scale.
We can see everything in one place. We can see that the data is correct, understand the signals, and finally optimize our campaigns.
Shai Masot
Strategic Demand & Lead Generation
I’m really excited about the power of generative AI in general, and working with Copilot is a no-brainer because ZoomInfo is one of the key platforms in our tech stack.
Toby Carrington
Chief Business Officer
I give props to the data services team at ZoomInfo. They’ve done a really great job working with us to get us what we need.
David Gojo
Sales Data Science Manager
While our analysis initially suggested Cognism might have advantages for UK mobile data, we recognize ZoomInfo's broader capabilities and are willing to invest in the additional features like intent data. We've used ZoomInfo before and see the value in scaling our data volume with your platform
UK based Energy Company
Director of Sales
Join the #1 AI GTM platform powering 35,000+ companies
FAQs
Is D&B Hoovers as accurate as ZoomInfo?
D&B Hoovers draws on 184 years of Dun & Bradstreet commercial data, covering 330M+ companies and 520M+ contacts, but multiple Gartner reviewers flag data freshness and accuracy concerns, with some reporting accuracy around 70%, including outdated, retired, or even deceased contacts.
ZoomInfo's first-party verified data achieves 95%+ accuracy with 300+ human researchers continuously updating 500M contacts, 200M+ verified emails, and 135M+ verified phone numbers. For sales teams where direct-dial accuracy drives connect rate, the verification depth is the deciding factor.
What does ZoomInfo have that D&B Hoovers doesn't?
ZoomInfo includes several capabilities D&B Hoovers does not offer natively: Chorus for conversation intelligence, GTM Workspace with AI agents that draft emails, update CRM records, and prioritize next actions, GTM Studio for marketing and RevOps orchestration, native outbound sequencing via the Salesloft partnership, and the GTM Context Graph reasoning layer. D&B Hoovers is a research and list-building tool that hands data off to your other platforms.
When should you use D&B Hoovers instead of ZoomInfo?
D&B Hoovers is the right choice when your workflows depend on D-U-N-S Numbers for credit, procurement, or compliance verification; when you need corporate family tree mapping with globally recognized subsidiary identification; when you sell into healthcare or technology verticals and want D&B's pre-built vertical datasets; or when you need a self-serve SMB solution at $49 per month. ZoomInfo is the better fit when you need data, AI execution, conversation intelligence, and CRM automation in one platform.
Can D&B Hoovers replace ZoomInfo?
Not for teams that need a full GTM execution platform. D&B Hoovers provides strong research and list-building capabilities anchored on D-U-N-S data, but it does not include native outbound sequencing, conversation intelligence, AI agents, or the GTM Context Graph reasoning layer. Teams using D&B Hoovers for prospecting still need separate tools for outreach, call recording, CRM automation, and intent-driven prioritization.
How does ZoomInfo's data compare to Dun & Bradstreet's?
Dun & Bradstreet's Data Cloud covers 330M+ companies and 520M+ contacts built on 184 years of commercial data history, anchored on the D-U-N-S Number. ZoomInfo's B2B dataset covers 500M contacts, 100M companies, 135M+ verified phone numbers, 120M direct dials, and 200M+ verified business emails, with multi-source verification by 300+ human researchers. The core difference is purpose: D&B data is optimized for compliance, credit, and commercial hierarchy mapping; ZoomInfo data is optimized for verified, actionable sales and marketing outreach.