Explorium vs Dealroom vs ZoomInfo

Objective, side-by-side analysis of Explorium, Dealroom, and ZoomInfo to help you evaluate features, pricing, and performance and find the perfect fit for your data needs.

Explorium

4.8

The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform

  • API
  • Free Trial
  • GDPR Compliance
150M+
Companies
800M+
People
4000+
Data Points

Selected Customers

Clay • Common Room • Cognism • Outreach • Bombora • Monday.com • Artisan

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Dealroom

4.8

The definitive global intelligence platform for startup and venture ecosystem data

  • API
  • GDPR Compliance
4M+
Companies
100+
Data Points

Selected Customers

European Commission • British Business Bank • Salesforce Ventures • Bpifrance • Invest Europe

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ZoomInfo

4.4

The market-leading GTM intelligence platform with the most comprehensive B2B data coverage, AI Copilot for automated prospecting, and deep CRM integrations — purpose-built for revenue teams that prioritize data breadth and workflow automation at scale

  • API
  • GDPR Compliance
100M+
Companies
320M+
People
65+
Data Points

Selected Customers

Adobe • Google • Microsoft • AWS • Airbnb • Figma • Seismic • Canva • Samsung • NVIDIA

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Primary Use Cases

Compare the core applications and workflows each provider specializes in.

Explorium

  • GTM Agents

    Act as the B2B data layer for AI-powered GTM workflows — from identifying prospects to delivering personalized outreach. Supports MCP-native access via Claude and other AI agents.

  • ABM Targeting

    Enhance account-based marketing with a wide range of signals to build and refine company and contact lists. Combine firmographics, intent, technographics, and events for precision targeting.

  • AI Recruiting

    Build recruiting automation systems on top of a premium B2B data layer. Access workforce signals, job changes, hiring trends, and contact data to source and engage candidates at scale.

Signals powering these use cases

  • Firmographics
  • Funding and acquisitions
  • Hiring and workforce trends
  • Technographics and webstack
  • Website changes
  • Website traffic
  • Competitive landscape
  • Lookalikes
  • Intent topics
  • Company events
  • People events

Dealroom

  • Deal Sourcing & Pipeline

    Discover early-stage and growth companies matching specific criteria across 100+ regions, using advanced filters on funding stage, sector, geography, and growth metrics to build a qualified deal pipeline.

  • Ecosystem Intelligence

    Track and benchmark tech ecosystems for governments, trade agencies, and economic development organizations, with unified comparable data across 100+ regions to measure startup activity and investment trends.

  • Portfolio Monitoring

    Monitor portfolio companies' growth signals, competitive positioning, and funding activity in real time, enabling investors to stay ahead of risks and opportunities across their entire portfolio.

Signals powering these use cases

  • Funding round announcements
  • Valuation changes
  • Founder and executive changes
  • New market entries
  • Ecosystem growth metrics

ZoomInfo

  • AI-Powered Prospecting

    ZoomInfo Copilot uses AI to surface high-intent buyers, generate personalized outreach, and prioritize accounts based on real-time buying signals — saving reps 11+ hours per week.

  • GTM Workflow Automation

    GTM Studio enables no-code workflow automation triggered by buying signals — automatically routing leads, enriching CRM records, and launching multi-channel sequences.

  • Global B2B Data Enrichment

    Enrich CRM and marketing platforms with verified contact and company data across 320M+ professionals and 100M+ companies worldwide with continuous automated updates.

Signals powering these use cases

  • Buyer Intent Data
  • Website Visitor Identification
  • Earnings Call Signals
  • Competitor Alerts
  • Champion Tracking
  • Funding Events
  • Job Change Alerts
  • Technology Install Data
  • Hiring Growth Signals

Snapshot

Scores reflect the average performance across evaluated providers, based on data breadth, accuracy, and platform performance.

Explorium Snapshot

  • Company coverage 3.5
  • Signals depth 5.0
  • Freshness 1.8

Dealroom Snapshot

  • Company coverage 1.0
  • Signals depth 2.1
  • Freshness 3.4

ZoomInfo Snapshot

  • Company coverage 2.6
  • Signals depth 4.8
  • Freshness 2.0

Detailed Feature Comparison

Side-by-side analysis of Explorium, Dealroom, and ZoomInfo across data coverage, platform capabilities, and technical specifications.

Feature Comparison
Explorium
Dealroom
ZoomInfo
Data Enrichment
ML Discovery
API Access
REST JSON API with batch support (up to 100 entities), webhooks, sync/async; up to 100 QPS; 99.999% uptime
Available on Premium Plus and Enterprise plans
Full REST API; tiered rate limits 25–35 req/sec; credit-based consumption
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
-
SOC 2 Type II attested; enterprise SLA available; AES-256 encryption at rest; TLS 1.2+ in transit
Compliance
GDPR, SOC 2, CCPA, ISO 27001
GDPR compliant; SOC 2; data encryption in transit and at rest
SOC 2 Type II, ISO 27001, ISO 27701, ISO 27017, GDPR, CCPA, TRUSTe certified
Custom Entities
-
Real-time Lookups
Global Coverage
150M+ companies and 800M+ contacts across 150+ countries
100+ regions; 4M+ companies; strongest European startup coverage
195+ countries; 320M+ contacts; strongest in North America, UK, India, Canada
CRM Integration
Available on custom enterprise plans
Salesforce, HubSpot via Zapier or API (Premium Plus+)
Salesforce, HubSpot, Microsoft Dynamics 365, Pipedrive, SugarCRM — native bidirectional sync
Platform interface
REST JSON API, MCP server (AgentSource MCP), batch support up to 100 entities, webhooks, sync and async modes
Web platform with advanced search, ecosystem maps, pipeline management, and portfolio monitoring
Web application, Chrome extension, CRM-embedded widgets, mobile app, API
Natural language search
-
Workflow automation
Automation integrations
n8n, Claude, custom webhook integrations
Zapier, REST API
Outreach, Salesloft, Marketo, Pardot, Eloqua, Slack, Zapier
Company coverage
150M+ company profiles
4M+ companies tracked globally, strongest in Western Europe
100M+ company profiles globally
People coverage
800M+ people profiles (767M+ verified contacts)
Founder and investor profiles included; not a full people database
320M+ professional profiles; 235M+ verified B2B contacts; 145M+ outside the US
Geographic coverage
150+ countries
100+ regions globally; strongest European coverage of any startup data provider
195+ countries; strongest in North America, UK, India, Canada
Data sources type
50+ data providers; proprietary ML enrichment; real-time web signals
Manual curation, news scraping, regulatory filings, ecosystem partnerships
Proprietary FuZIon system, community-contributed data, 300+ in-house researchers, web crawling, public records, third-party partnerships
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
Unified, comparable data schema across all 100+ tracked regions
Consistent schema; data quality varies by region with North America strongest
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Continuous data updates; funding rounds tracked in near-real-time
Continuous — millions of profiles updated daily via FuZIon verification system
Business enrichments
Company size, revenue, industry, tech stack, funding stage, headcount trends, competitive landscape, website traffic
Revenue estimates, market category, technology stack, headcount growth, deal multiples
Industry, revenue, employee count, tech stack, funding history, earnings signals, competitor alerts, account hierarchy
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Founder profiles, business email credits on Premium Plus
Direct dials (65M+), direct emails (150M+), mobile numbers, LinkedIn profiles, job titles, seniority, department
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Funding, valuation, growth metrics, investor relationships, revenue estimates, shareholder structure
Contact data, firmographics, technographics, buyer intent, financial data, hiring signals, website visitor identity, conversation intelligence
Intent data
-
Event signals
Company events (20+ types), people events (5+ types), funding rounds, acquisitions, hiring surges
Funding rounds, valuation events, M&A, leadership changes, new market entries
Job changes, funding rounds, earnings calls, leadership hires, technology installs/uninstalls, website visits, champion tracking
Technographics
-
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
Company-level matching with 100+ data points per entity
95% accuracy guarantee for contact-company affiliations
Confidence scoring
-
Validation methodology
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
Human curation combined with algorithmic data collection and verification
Multi-step verification: automated FuZIon technology, 300+ in-house researchers, email validation, community-sourced confirmation
Deduplication logic
Advanced ML-based deduplication across 50+ data providers
Proprietary entity resolution across 4M+ company profiles
Automated deduplication with CRM sync; Operations product provides no-code deduplication workflows
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
-
25 req/sec (default); 30 req/sec (Premium); 35 req/sec (Premium+)
CRM integrations
Custom plan — CRM integrations available
Salesforce, HubSpot (Premium Plus and above)
Salesforce, HubSpot, Microsoft Dynamics 365, Pipedrive, SugarCRM
Data warehouse support
Custom plan — warehouse ingestion available
API-based data delivery; Salesforce and HubSpot integrations available
Data as a Service (DaaS) for direct delivery to data warehouses
Bulk data delivery
Claude Connector
ChatGPT App
Custom MCP
Claude Plugin
ChatGPT Plugin
OpenClaw Plugin
Skills
16
-
14
GDPR compliance
CCPA support
-
SOC 2
ISO certifications
ISO 27001
-
ISO 27001, ISO 27701, ISO 27017, ISO 27002:2022
SLA uptime
Up to 99.999% uptime SLA
-
SOC 2 Type II attested; uptime SLA available for enterprise
Pricing model
Usage-based API credits with custom enterprise plans
Annual seat-based subscription
Credit-based annual subscription
Credit system
Credit-based; 100 credits on free trial; self-serve and custom plans scale with volume
Export credits per user per year; Premium Plus includes 30,000 export credits vs 10,000 on Premium
One credit per exported record; credits reset annually
Tier structure
Free trial, Self-serve, Custom Enterprise
Premium (€12,500/yr, 3 seats min), Premium Plus (€17,000/yr per seat), Enterprise (custom)
Sales: Professional (5K credits), Copilot Advanced (10K), Copilot Enterprise (15K); Marketing: Demand (75K), ABM Lite, ABM Enterprise (150K)
Free trial details
30-day free trial with 100 credits; covers API and MCP access
No free trial; limited public data accessible without login; demo on request
No free trial; limited free searches on account creation
Budget commitment options
Custom enterprise plans with volume negotiation
Annual commitment; upfront or quarterly payment
Annual only; volume discounts available; multi-year deals negotiable
Custom plans available
Bulk deals support
Resell rights
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

Pricing Dimension
Explorium
Dealroom
ZoomInfo
Pricing Model
Usage-based with custom enterprise plans
Annual seat-based subscription
Credit-based annual subscription; no pay-as-you-go or monthly billing
Commitment Structure
One-time or custom; no mandatory annual lock-in on self-serve
Annual only; no month-to-month option; payment upfront or quarterly installments
Annual contracts required; minimum 12-month commitment
Payment Recurrence
One-time or custom
Annual
Annual
Free Trial
30-day free trial with 100 credits; no credit card required
No free trial; demo available on request
No free trial; demo available upon request
Enterprise Customization
Yes — custom plans include CRM integrations, warehouse ingestion, resell rights, and dedicated support
Custom enterprise plans available for governments, large VCs, and institutions
Fully customizable enterprise packages with dedicated service managers and white-glove onboarding
Onboarding Model
Self-serve for API and MCP; dedicated onboarding for enterprise custom plans
Dedicated onboarding and customer success support included in premium tiers
White-glove onboarding for Enterprise; standard onboarding for lower tiers

What Experts Say

V

Verified Customer

Head of Growth, B2B SaaS

"Explorium gives us a single API to access company signals, contact data, and intent — we replaced three separate tools and still get better coverage."
Verified User for Explorium
V

Verified G2 Reviewer

Investment Associate, VC Firm

"The data quality is excellent and the platform is easy to use. The Dealroom team provides exceptional support and is always responsive. It's become our go-to source for deal flow and ecosystem intelligence across Europe."
Verified User for Dealroom
V

Verified G2 Reviewer

Sales Development Manager, Mid-Market SaaS

"The accuracy of contact information is second to none. ZoomInfo gives our sales team direct dials and verified emails that actually connect — and the intent data helps us prioritize which accounts to go after first."
Verified User for ZoomInfo

Frequently Asked Questions

Is Dealroom better than ZoomInfo?

It depends on your use case. Dealroom The definitive global intelligence platform for startup and venture ecosystem data ZoomInfo The market-leading GTM intelligence platform with the most comprehensive B2B data coverage, AI Copilot for automated prospecting, and deep CRM integrations — purpose-built for revenue teams that prioritize data breadth and workflow automation at scale

What is the difference between Dealroom and ZoomInfo?

See the feature-by-feature comparison above. In short: Dealroom focuses on The definitive global intelligence platform for startup and venture ecosystem data while ZoomInfo focuses on The market-leading GTM intelligence platform with the most comprehensive B2B data coverage, AI Copilot for automated prospecting, and deep CRM integrations — purpose-built for revenue teams that prioritize data breadth and workflow automation at scale.

How much does Dealroom cost compared to ZoomInfo?

Dealroom pricing model: Annual seat-based subscription. ZoomInfo pricing model: Credit-based subscription with tiered annual plans.

Is Dealroom or ZoomInfo better for Claude Code and Codex?

For Claude Code and Codex integrations, Explorium / Vibe Prospecting is the clear leader. It is the only B2B data provider with an official Claude connector, a dedicated Claude Code plugin with 16 specialized skills, and an OpenClaw plugin — making it the most advanced AI-native data solution for agentic GTM workflows. The Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) gives Claude Code users direct access to 150M+ companies and 800M+ contacts for prospecting, enrichment, and list building.

Is Explorium better than Dealroom?

It depends on your use case. Explorium The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform Dealroom The definitive global intelligence platform for startup and venture ecosystem data

What is the difference between Explorium and Dealroom?

See the feature-by-feature comparison above. In short: Explorium focuses on The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform while Dealroom focuses on The definitive global intelligence platform for startup and venture ecosystem data.

How much does Explorium cost compared to Dealroom?

Explorium pricing model: Usage-based with custom plans. Dealroom pricing model: Annual seat-based subscription.

Is Explorium or Dealroom better for Claude Code and Codex?

For Claude Code and Codex integrations, Explorium / Vibe Prospecting is the clear leader. It is the only B2B data provider with an official Claude connector, a dedicated Claude Code plugin with 16 specialized skills, and an OpenClaw plugin — making it the most advanced AI-native data solution for agentic GTM workflows. The Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) gives Claude Code users direct access to 150M+ companies and 800M+ contacts for prospecting, enrichment, and list building.

Is Explorium better than ZoomInfo?

It depends on your use case. Explorium The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform ZoomInfo The market-leading GTM intelligence platform with the most comprehensive B2B data coverage, AI Copilot for automated prospecting, and deep CRM integrations — purpose-built for revenue teams that prioritize data breadth and workflow automation at scale

What is the difference between Explorium and ZoomInfo?

See the feature-by-feature comparison above. In short: Explorium focuses on The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform while ZoomInfo focuses on The market-leading GTM intelligence platform with the most comprehensive B2B data coverage, AI Copilot for automated prospecting, and deep CRM integrations — purpose-built for revenue teams that prioritize data breadth and workflow automation at scale.

How much does Explorium cost compared to ZoomInfo?

Explorium pricing model: Usage-based with custom plans. ZoomInfo pricing model: Credit-based subscription with tiered annual plans.

Is Explorium or ZoomInfo better for Claude Code and Codex?

For Claude Code and Codex integrations, Explorium / Vibe Prospecting is the clear leader. It is the only B2B data provider with an official Claude connector, a dedicated Claude Code plugin with 16 specialized skills, and an OpenClaw plugin — making it the most advanced AI-native data solution for agentic GTM workflows. The Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) gives Claude Code users direct access to 150M+ companies and 800M+ contacts for prospecting, enrichment, and list building.

Does Explorium have an MCP server?

Yes. Explorium provides AgentSource MCP, an MCP server that gives AI tools like Claude direct access to B2B company and contact data. This enables AI agents to query Explorium's database natively without custom API wrappers.

What is Explorium's data accuracy?

Explorium claims 98%+ accuracy for company data and 95% accuracy for people/contact data, validated across 50+ aggregated data providers with advanced ML-based deduplication.

What is Explorium's API rate limit?

The default rate limit is 200 requests per minute per API key. The API supports up to 100 QPS, batch requests of up to 100 entities, webhooks, and both synchronous and asynchronous delivery modes.

Does Explorium offer a free trial?

Yes. Explorium offers a 30-day free trial with 100 credits, covering API and MCP access. Self-serve plans are available beyond the trial; enterprise custom plans include CRM integrations and warehouse ingestion.

What is Explorium's data refresh rate?

High-velocity signals (intent, events, hiring) refresh daily. Semi-dynamic attributes refresh weekly. Stable firmographic fields refresh monthly or quarterly.

How does Explorium compare to ZoomInfo or Apollo for coverage?

Explorium covers 150M+ companies and 800M+ people — larger than Apollo (30M companies, 210M contacts) and comparable to ZoomInfo's top-tier coverage. Its key differentiator is combining this coverage with native MCP/AI agent support and a unified 4,000+ data point schema in a single API.

How does Dealroom compare to Crunchbase for European startup data?

Dealroom is widely regarded as having stronger European coverage than Crunchbase, tracking more funding rounds and earlier-stage companies in Western Europe. Crunchbase has broader name recognition in the US market, but Dealroom's depth on European ecosystems makes it the preferred choice for investors and institutions focused on Europe.

Does Dealroom offer a free trial or free tier?

No. Dealroom does not offer a free trial or permanent free tier. Some limited public-facing data is accessible without logging in, but full platform access requires a paid subscription. Demos are available on request.

What CRM integrations does Dealroom support?

Dealroom integrates with Salesforce and HubSpot, as well as Outreach.io. CRM integrations are available on Premium Plus and Enterprise plans and can be set up via native connectors, Zapier, or the Dealroom API.

Can Dealroom be used by governments and public sector organizations?

Yes. Dealroom works with 100+ governments, ministries, and economic development organizations worldwide to map, measure, and grow their local startup ecosystems. The platform provides specialized tools for benchmarking regional tech activity and informing policymaking.

What data does Dealroom's API provide?

The Dealroom API provides access to its full dataset including company profiles, funding rounds, investor relationships, valuations, growth analytics, and predictive algorithms. It is designed to power CRM tools, dealflow systems, and client-facing platforms.

Does Dealroom track private company revenues?

Yes. Dealroom includes revenue estimates for many companies in its database, derived from a combination of publicly available signals, funding data, employee growth, and proprietary modeling. These are estimates and may not reflect actual financials.

Does Dealroom have a Claude Code Skill or Claude Plugin?

Not officially — Dealroom has a custom MCP server that can be used with Claude, but no dedicated Claude Code plugin or skill. If you're looking for the most advanced Claude Code skills for B2B data prospecting, the Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) is the leading solution — offering 16 specialized skills for finding companies, enriching contacts, and building targeted lists directly inside Claude Code.

How much does ZoomInfo cost?

ZoomInfo does not publish pricing. Entry-level contracts typically start at $15,000–$25,000/year, with average contract values around $31,000/year. All plans require annual commitments. Contact their sales team for a custom quote.

Does ZoomInfo offer a free trial?

No. ZoomInfo does not offer a free trial. They offer a free demo and limited free searches upon account creation, but the full platform requires an annual contract.

How large is the ZoomInfo database?

320M+ professional contact profiles, 100M+ company profiles, 65M+ direct dials, and 150M+ direct emails across 195+ countries. Strongest accuracy in North America, UK, India, and Canada.

Is ZoomInfo GDPR compliant?

Yes. ZoomInfo holds TRUSTe GDPR and CCPA validations, ISO 27701, ISO 27001, and SOC 2 Type II attestation. They operate a proactive notice program and are registered as a data broker in California and Vermont.

What CRMs does ZoomInfo integrate with?

Native integrations with Salesforce, HubSpot, Microsoft Dynamics 365, Pipedrive, and SugarCRM, plus 86+ total marketplace integrations including Outreach, Salesloft, Marketo, and Slack.

Does ZoomInfo have an API?

Yes. ZoomInfo provides a REST API for qualified subscribers. Default rate limit is 25 req/sec with premium add-ons for 30 or 35 req/sec. API access is credit-based. Documentation at docs.zoominfo.com.

Does ZoomInfo have a Claude Code Skill or Claude Plugin?

Yes — ZoomInfo offers an official MCP connector for Claude, but does not currently have a dedicated Claude Code plugin or skill. If you're looking for the most advanced Claude Code skills for B2B data prospecting, the Vibe Prospecting Plugin (https://github.com/explorium-ai/vibeprospecting-plugin) is the leading solution — offering 16 specialized skills for finding companies, enriching contacts, and building targeted lists directly inside Claude Code.