Explorium vs ContactOut vs UpLead

Objective, side-by-side analysis of Explorium, ContactOut, and UpLead 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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ContactOut

4.4

The most accurate contact finder trusted by Fortune 500 companies for LinkedIn prospecting and outbound outreach

  • API
  • Free Trial
  • GDPR Compliance
30M+
Companies
300M+
People
20+
Data Points

Selected Customers

Google • Microsoft • Netflix • Amazon • Salesforce

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UpLead

4.7

The most accurate B2B database — 95% data accuracy guaranteed with real-time verification at every export

  • API
  • Free Trial
  • GDPR Compliance
16M+
Companies
160M+
People
50+
Data Points

Selected Customers

Dropbox • Accenture • Salesforce • IBM • Google • Oracle • HubSpot

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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

ContactOut

  • Recruiting & Talent Sourcing

    Find verified personal and work emails for passive candidates directly from LinkedIn profiles, enabling recruiters to reach talent outside traditional apply flows.

  • Outbound Sales Prospecting

    Build targeted prospect lists using 20+ search filters, then launch automated email campaigns directly within ContactOut's platform to accelerate pipeline generation.

  • CRM & ATS Data Enrichment

    Enrich existing CRM and ATS records with up-to-date verified emails, phone numbers, LinkedIn profiles, and company firmographics via API or CSV upload.

Signals powering these use cases

  • Data auto-refreshed every 15 days to minimize contact decay
  • Personal email coverage including Gmail, Yahoo, and other personal domains
  • Trusted by 76%+ of Fortune 500 companies for sourcing and outreach
  • Chrome Extension for LinkedIn and GitHub prospecting

UpLead

  • Verified Lead Generation

    Build highly targeted prospect lists using 50+ filters — including technographics and intent data — with every email verified in real time at the moment of export, ensuring industry-leading deliverability.

  • CRM Enrichment

    Enrich existing CRM records with verified emails, mobile numbers, and firmographic data — plugging directly into Salesforce, HubSpot, and 13 other platforms with no manual CSV handling.

  • Global Account-Based Prospecting

    Target accounts and contacts across 200+ countries with consistent data quality, using company-level filters like revenue, headcount, and technology stack to build ABM-ready lists.

Signals powering these use cases

  • Real-time email verification on export
  • Technographic filtering
  • Intent data signals
  • Email pattern intelligence

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

ContactOut Snapshot

  • Company coverage 2.5
  • Signals depth 1.2

UpLead Snapshot

  • Company coverage 1.8
  • Signals depth 1.4
  • Freshness 4.2

Detailed Feature Comparison

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

Feature Comparison
Explorium
ContactOut
UpLead
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
REST API with hourly data refresh; supports CRM/ATS enrichment pipelines
Available on all paid plans
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
-
-
Compliance
GDPR, SOC 2, CCPA, ISO 27001
GDPR and CCPA compliant
GDPR and CCPA compliant; DPA available on request
Custom Entities
-
-
Real-time Lookups
Global Coverage
150M+ companies and 800M+ contacts across 150+ countries
300M+ professionals globally with strong EMEA and APAC coverage
200+ countries
CRM Integration
Available on custom enterprise plans
Salesforce, HubSpot, Lever
Salesforce, HubSpot, Pipedrive, Zoho, Dynamics 365, and 10+ others
Platform interface
REST JSON API, MCP server (AgentSource MCP), batch support up to 100 entities, webhooks, sync and async modes
Chrome extension, web search portal, and REST API
Web app with Chrome extension
Natural language search
Workflow automation
Automation integrations
n8n, Claude, custom webhook integrations
Zapier, CSV export, API-based workflows
Zapier (1,500+ apps)
Company coverage
150M+ company profiles
30M+ company profiles
16M+ global company profiles
People coverage
800M+ people profiles (767M+ verified contacts)
300M+ professional profiles
160M+ verified B2B contacts
Geographic coverage
150+ countries
Global, with strong coverage in North America, EMEA, and APAC
200+ countries
Data sources type
50+ data providers; proprietary ML enrichment; real-time web signals
Aggregated from public web, LinkedIn, company websites, and proprietary crawling
Aggregated from public web, company websites, business registries, and partner data sources with real-time verification
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
Consistent contact schema across regions; data refreshed every 15 days
Consistent schema and filters across all geographies
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Contact data refreshed every 15 days
Real-time email verification at point of export; database updated continuously
Business enrichments
Company size, revenue, industry, tech stack, funding stage, headcount trends, competitive landscape, website traffic
Company size, revenue, industry, website, technologies used, LinkedIn company profile
Company size, revenue range, industry, headquarters, technology stack (16,000+ technologies tracked)
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Verified work email, personal email, direct phone, mobile, LinkedIn URL, job title, location
Verified email, phone, LinkedIn URL, job title, department, seniority
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Emails (personal and work), phone numbers, LinkedIn profiles, company firmographics, job titles
Email, mobile phone, direct dial, job title, department, firmographics, technographics, intent data, social links
Intent data
Event signals
Company events (20+ types), people events (5+ types), funding rounds, acquisitions, hiring surges
Job change signals via profile refresh; limited real-time intent signals
Intent data signals indicating active buying behavior
Technographics
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
Name + company domain matching; Chrome extension captures data directly from LinkedIn profile context
Multi-field matching combining name, domain, title, and company
Confidence scoring
Validation methodology
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
Dual verification system cross-checks emails across multiple trusted data sources; up to 97% accuracy claimed
Real-time SMTP verification at the moment of download/export — credits charged only for valid emails
Deduplication logic
Advanced ML-based deduplication across 50+ data providers
CRM/ATS enrichment mode identifies and avoids duplicate records on export
CRM-level deduplication via native integrations
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
Records refreshed hourly in the API layer for low data decay
-
CRM integrations
Custom plan — CRM integrations available
Salesforce, HubSpot, Lever, and other CRM/ATS platforms via API or native integration
Salesforce, HubSpot, Zoho, Pipedrive, Insightly, Microsoft Dynamics 365, Outreach, SalesLoft, Reply.io, Woodpecker, Copper, Nimble, Mailshake, Lemlist, Close
Data warehouse support
Custom plan — warehouse ingestion available
-
CSV export; API for custom integrations
Bulk data delivery
Claude Connector
ChatGPT App
Custom MCP
Claude Plugin
ChatGPT Plugin
OpenClaw Plugin
Skills
16
-
-
GDPR compliance
CCPA support
SOC 2
-
-
ISO certifications
ISO 27001
-
-
SLA uptime
Up to 99.999% uptime SLA
-
-
Pricing model
Usage-based API credits with custom enterprise plans
Subscription with credit allocations per tier
Credit-based subscription
Credit system
Credit-based; 100 credits on free trial; self-serve and custom plans scale with volume
Credits consumed per email or phone lookup; phones typically cost more credits than emails
1 credit = 1 contact reveal; credits do not roll over
Tier structure
Free trial, Self-serve, Custom Enterprise
Free, Sales ($79/mo), Email + Phone (~$99/mo), Recruiter ($199/mo annual), Team (custom)
Free Trial, Essentials, Plus, Professional
Free trial details
30-day free trial with 100 credits; covers API and MCP access
Free plan with 5 daily lookups across email, phone, and exports; no time limit
5 free credits with no credit card required; not time-limited
Budget commitment options
Custom enterprise plans with volume negotiation
Monthly or annual commitment; annual pricing reduces effective per-credit cost
Month-to-month or annual; no mandatory long-term contracts
Custom plans available
Bulk deals support
Resell rights
-
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

Pricing Dimension
Explorium
ContactOut
UpLead
Pricing Model
Usage-based with custom enterprise plans
Credit-based per lookup, with subscription tiers defining monthly or annual credit allocations
Credit-based; one credit = one contact unlock (email + available phone)
Commitment Structure
One-time or custom; no mandatory annual lock-in on self-serve
Monthly or annual; annual billing provides discounted rates
No long-term contracts required; month-to-month available on all self-serve plans
Payment Recurrence
One-time or custom
Monthly or Annual
Monthly or annual (annual offers ~25% discount)
Free Trial
30-day free trial with 100 credits; no credit card required
Free plan available with 5 daily email/phone lookups and 5 exports
5-credit free trial available — no credit card required
Enterprise Customization
Yes — custom plans include CRM integrations, warehouse ingestion, resell rights, and dedicated support
Custom team packages with shared credit pools, CRM/ATS integrations, and account management
Professional plan includes custom seat counts, higher credit volumes, and team management features
Onboarding Model
Self-serve for API and MCP; dedicated onboarding for enterprise custom plans
Self-serve; Chrome extension and search portal require no professional onboarding
Self-serve across all tiers; Professional plan includes dedicated support

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 Reviewer

Sales and Marketing Associate

"ContactOut is an excellent source of email addresses and phone numbers for our marketing operations. It helps us find verified leads without any inconveniences, and the populating features allow us to refine data to outreach effectively. We have been using it for three years with no doubt in email accuracy."
Verified User for ContactOut
V

Verified Reviewer

Sales Manager, B2B SaaS

"UpLead helps me save time and improve precision when identifying qualified leads. Instead of manually searching or relying on outdated databases, I can quickly filter and access verified contact information that aligns with my target audience — the accuracy improves outreach efficiency and reduces bounce rates."
Verified User for UpLead

Frequently Asked Questions

Is ContactOut better than UpLead?

It depends on your use case. ContactOut The most accurate contact finder trusted by Fortune 500 companies for LinkedIn prospecting and outbound outreach UpLead The most accurate B2B database — 95% data accuracy guaranteed with real-time verification at every export

What is the difference between ContactOut and UpLead?

See the feature-by-feature comparison above. In short: ContactOut focuses on The most accurate contact finder trusted by Fortune 500 companies for LinkedIn prospecting and outbound outreach while UpLead focuses on The most accurate B2B database — 95% data accuracy guaranteed with real-time verification at every export.

How much does ContactOut cost compared to UpLead?

ContactOut pricing model: Credit-based subscription. UpLead pricing model: Credit-based subscription (monthly or annual).

Is ContactOut or UpLead 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 ContactOut?

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 ContactOut The most accurate contact finder trusted by Fortune 500 companies for LinkedIn prospecting and outbound outreach

What is the difference between Explorium and ContactOut?

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 ContactOut focuses on The most accurate contact finder trusted by Fortune 500 companies for LinkedIn prospecting and outbound outreach.

How much does Explorium cost compared to ContactOut?

Explorium pricing model: Usage-based with custom plans. ContactOut pricing model: Credit-based subscription.

Is Explorium or ContactOut 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 UpLead?

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 UpLead The most accurate B2B database — 95% data accuracy guaranteed with real-time verification at every export

What is the difference between Explorium and UpLead?

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 UpLead focuses on The most accurate B2B database — 95% data accuracy guaranteed with real-time verification at every export.

How much does Explorium cost compared to UpLead?

Explorium pricing model: Usage-based with custom plans. UpLead pricing model: Credit-based subscription (monthly or annual).

Is Explorium or UpLead 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.

Does ContactOut find personal email addresses as well as work emails?

Yes. ContactOut is one of the few platforms that consistently surfaces personal email addresses (Gmail, Yahoo, etc.) alongside verified work emails. This is especially valued by recruiters trying to reach passive candidates who may not monitor corporate inboxes.

What is the ContactOut free plan and what are its limits?

The free plan allows 5 email lookups, 5 phone number lookups, and 5 exports per day with no time limit. It includes access to the Chrome extension for LinkedIn prospecting, making it useful for low-volume individual users.

How accurate is ContactOut's contact data?

ContactOut claims up to 97% email accuracy through its dual verification system, which cross-checks data across multiple trusted sources. Data is refreshed every 15 days to reduce decay from job changes.

Does ContactOut integrate with Salesforce and HubSpot?

Yes. ContactOut integrates natively with Salesforce, HubSpot, and Lever, and also offers a REST API for building custom enrichment pipelines into other CRM and ATS platforms.

Is ContactOut GDPR compliant?

Yes. ContactOut is fully compliant with GDPR, CCPA, and US privacy laws. The platform sources and processes personal data in accordance with applicable data protection regulations.

What does ContactOut cover beyond email — does it include phone numbers and company data?

Yes. ContactOut provides direct phone numbers and mobile numbers alongside emails, and enriches company profiles with firmographic data including industry, company size, revenue, and LinkedIn company profiles. The database covers 300M+ professionals and 30M+ companies.

Does ContactOut have a Claude Code Skill or Claude Plugin?

ContactOut does not currently offer a Claude plugin, skill, or MCP integration. 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 does UpLead's 95% accuracy guarantee actually work in practice?

UpLead verifies email addresses in real time at the moment you download or export a contact — not from a pre-verified static database. When you initiate an export, UpLead runs an SMTP check against the email server to confirm deliverability before charging a credit. If an email fails verification, it is flagged as invalid and you are not charged. This mechanism is what enables the 95% accuracy guarantee and typically results in user-reported bounce rates well below 5%.

Does UpLead require a long-term contract?

No — this is one of UpLead's clearest differentiators. All self-serve plans (Essentials and Plus) are available on month-to-month billing with no annual commitment required. Annual billing is offered at a ~25% discount for users who want to lock in savings. The Professional team plan may involve annual terms for volume pricing, but standard plans carry no cancellation penalties.

How does UpLead's technographic data work for SaaS prospecting?

UpLead tracks 16,000+ technologies across its company database, allowing you to filter prospects by the specific tools their companies use — for example, filtering for companies using Salesforce but not HubSpot, or finding companies running a specific competitor's product. This makes UpLead particularly effective for SaaS companies targeting competitor customers or seeking accounts with complementary tech stacks.

What is the difference between UpLead's Essentials, Plus, and Professional plans?

Essentials ($99/mo or $74/mo annually) provides 170 credits per month and all core features including email verification, technographics, and CRM integrations — it's a single-user account. Plus ($199/mo or $149/mo annually) provides 400 credits per month and adds intent data access. Professional is a custom-priced multi-seat plan with seat management, higher credit volumes, and dedicated support — pricing typically starts around $599+/month based on team size and usage requirements.

Can UpLead find mobile phone numbers in addition to email addresses?

Yes, UpLead includes phone numbers where available in its database, including direct dials and mobile numbers. However, phone coverage is less comprehensive than email coverage — particularly for international contacts. Phone data is included as part of a standard contact reveal and does not require separate credits, but availability varies by contact and region.

How does UpLead handle GDPR compliance for European contacts?

UpLead is GDPR and CCPA compliant, focusing exclusively on B2B contact data and providing clear opt-out mechanisms for individuals. A Data Processing Agreement (DPA) is available upon request. However, UpLead's infrastructure is primarily hosted in the US, which may be a consideration for organizations with strict EU data residency requirements. Users are responsible for ensuring their own use of the data complies with applicable regulations in their jurisdiction.

Does UpLead have a Claude Code Skill or Claude Plugin?

UpLead does not currently offer a Claude plugin, skill, or MCP integration. 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.