Explorium vs 6sense vs Prospeo

Objective, side-by-side analysis of Explorium, 6sense, and Prospeo 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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6sense

4.3

The agent-powered Revenue Intelligence platform that uncovers and converts dark pipeline

  • API
  • GDPR Compliance
100M+
Companies
178M+
People

Selected Customers

IBM • Cisco • SAP Concur • Splunk • Dell • HP • Adobe • Microsoft • GE Digital • 3M

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Prospeo

4.5

Fast, accurate email and mobile finder with best-in-class LinkedIn Sales Navigator integration and a pay-only-for-valid-results credit model

  • API
  • Free Trial
  • GDPR Compliance
50+
Data Points

Selected Customers

2,000+ B2B companies • Outbound sales agencies • Revenue operations teams • SDR teams using LinkedIn Sales Navigator

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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

6sense

  • Predictive AI & Intent

    Identify anonymous buyers and prioritize accounts using machine learning models that analyze behavioral signals across the web, delivering nearly 10x the intent coverage of alternative providers.

  • Account-Based Orchestration

    Coordinate personalized marketing and sales motions across channels — advertising, email, web personalization, and CRM workflows — triggered by AI-detected buying signals.

  • Sales Intelligence & Prospecting

    Equip sales reps with real-time enriched company and contact data covering 481M+ buyer profiles in 200+ countries to focus outreach on accounts most likely to convert.

Signals powering these use cases

  • Buyer intent from 16,000+ topics
  • Anonymous web visitor identification
  • Predictive account scoring
  • In-market account detection
  • Technographic signals
  • Hiring and growth signals
  • CRM engagement signals
  • Dark funnel activity

Prospeo

  • LinkedIn & Sales Navigator Email Extraction

    Export leads directly from LinkedIn and Sales Navigator searches and enrich them with triple-verified email addresses and mobile numbers in bulk. The Chrome extension captures prospect data on the fly while browsing LinkedIn profiles without leaving the page.

  • Bulk Contact Enrichment

    Upload CSV files of prospects and enrich them at scale with email addresses, phone numbers, and 50+ firmographic data points. Credits are only charged for verified VALID results — CATCH_ALL and not-found results are free, making bulk enrichment cost-efficient.

  • Data Enrichment API

    Access Prospeo's enrichment capabilities programmatically via a developer-friendly API that returns clean JSON responses with millisecond latency and 99.99% uptime SLA. Revenue operations teams use it to enrich CRM records automatically or power custom data pipelines.

Signals powering these use cases

No signals available

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

6sense Snapshot

  • Company coverage 2.9
  • Signals depth 4.5
  • Freshness 1.0

Prospeo Snapshot

Detailed Feature Comparison

Side-by-side analysis of Explorium, 6sense, and Prospeo across data coverage, platform capabilities, and technical specifications.

Feature Comparison
Explorium
6sense
Prospeo
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
Full API for real-time enrichment, people and company lookups, and workflow integrations
Full enrichment API with JSON responses and 99.99% uptime SLA
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
Not publicly specified
99.99% uptime
Compliance
GDPR, SOC 2, CCPA, ISO 27001
GDPR, CCPA/CPRA, SOC 2 Type 2, ISO/IEC 27001:2022, ISO/IEC 42001:2023, TRUSTe validated
GDPR compliant — processes professional B2B data only, supports data subject rights
Custom Entities
-
-
Real-time Lookups
Global Coverage
150M+ companies and 800M+ contacts across 150+ countries
75M+ companies and 481M+ buyer profiles across 200+ countries
Global LinkedIn coverage with 7-day refresh
CRM Integration
Available on custom enterprise plans
Salesforce, HubSpot, Microsoft Dynamics
HubSpot and Salesforce native integrations
Platform interface
REST JSON API, MCP server (AgentSource MCP), batch support up to 100 entities, webhooks, sync and async modes
Web application with dashboards, segment builder, and campaign orchestration
Web dashboard, Chrome extension, CSV bulk upload, API
Natural language search
-
Workflow automation
Automation integrations
n8n, Claude, custom webhook integrations
Outreach, Salesloft, Marketo
Zapier, Instantly, Clay
Company coverage
150M+ company profiles
75M+ company profiles
-
People coverage
800M+ people profiles (767M+ verified contacts)
481M+ buyer profiles
-
Geographic coverage
150+ countries
200+ countries
Global, with strongest coverage for profiles on LinkedIn
Data sources type
50+ data providers; proprietary ML enrichment; real-time web signals
Proprietary intent network, third-party data, first-party CRM signals, public web
Proprietary database + LinkedIn enrichment + real-time verification
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
Unified platform schema across all geographies
Consistent email + firmographic schema globally
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Monthly data verification; intent signals processed continuously
7-day data refresh cycle — fastest among major email finders
Business enrichments
Company size, revenue, industry, tech stack, funding stage, headcount trends, competitive landscape, website traffic
Company size, revenue, industry, technographic stack, account scores
Company name, domain, industry, headcount, location
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Contact-level emails, phone numbers, roles, seniority, engagement history
Verified email, mobile number, LinkedIn URL, job title, full name
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Firmographics, technographics, intent, predictive scores, contact data
Email (verified), mobile number, LinkedIn profile URL, company firmographics (50+ data points)
Intent data
Event signals
Company events (20+ types), people events (5+ types), funding rounds, acquisitions, hiring surges
Web visits, content consumption, ad engagement, CRM activity
-
Technographics
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
AI-powered account and contact matching with predictive confidence scoring
92% match rate on enrichment API; 98% claimed email accuracy for verified results
Confidence scoring
Validation methodology
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
15+ online sources cross-verified monthly; AI-based deduplication
5-step proprietary verification: MX record check, SMTP ping, catch-all detection, syntax validation, domain validation
Deduplication logic
Advanced ML-based deduplication across 50+ data providers
AI-based entity resolution across company and contact records
Platform handles deduplication in bulk upload workflows
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
Real-time enrichment API; specific QPS not publicly disclosed
Millisecond latency
CRM integrations
Custom plan — CRM integrations available
Salesforce, HubSpot, Microsoft Dynamics
HubSpot (native), Salesforce (native), Clay (native)
Data warehouse support
Custom plan — warehouse ingestion available
Available via data exports and integrations
-
Bulk data delivery
Claude Connector
ChatGPT App
Custom MCP
Claude Plugin
ChatGPT Plugin
OpenClaw Plugin
Skills
16
4
-
GDPR compliance
CCPA support
-
SOC 2
-
ISO certifications
ISO 27001
ISO/IEC 27001:2022, ISO/IEC 42001:2023
-
SLA uptime
Up to 99.999% uptime SLA
Not publicly disclosed
99.99% uptime
Pricing model
Usage-based API credits with custom enterprise plans
Modular subscription
Credit-based (pay only for valid results)
Credit system
Credit-based; 100 credits on free trial; self-serve and custom plans scale with volume
50 credits/month on free plan; paid credit packages negotiated per contract
1 credit per valid email found; CATCH_ALL and not-found are free
Tier structure
Free trial, Self-serve, Custom Enterprise
Free + custom enterprise modules (no named paid tiers as of 2025)
Free → Starter ($39) → Growth tiers → Custom enterprise
Free trial details
30-day free trial with 100 credits; covers API and MCP access
Permanent free plan with 50 credits/month; no time-limited free trial
Free plan with 75 credits/month — no time limit
Budget commitment options
Custom enterprise plans with volume negotiation
Annual minimum; multi-year discounts available
Month-to-month subscription; no annual lock-in
Custom plans available
Bulk deals support
Resell rights
-
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

Pricing Dimension
Explorium
6sense
Prospeo
Pricing Model
Usage-based with custom enterprise plans
Modular subscription; base Sales Intelligence license plus configurable add-on modules
Monthly credit-based subscription
Commitment Structure
One-time or custom; no mandatory annual lock-in on self-serve
Annual contracts required; multi-year agreements common for enterprise
Month-to-month; no annual commitment required
Payment Recurrence
One-time or custom
Annual
Monthly
Free Trial
30-day free trial with 100 credits; no credit card required
Free plan available with 50 credits/month; no time-limited trial
Free plan with 75 credits/month
Enterprise Customization
Yes — custom plans include CRM integrations, warehouse ingestion, resell rights, and dedicated support
Fully custom — seat count, data volume, module selection, and advertising budget all negotiated
Custom pricing available for high-volume needs
Onboarding Model
Self-serve for API and MCP; dedicated onboarding for enterprise custom plans
Guided onboarding with professional services; fees range from $10,000 to $50,000+
Self-serve; no onboarding required

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

Digital Sales Representative, Enterprise Technology

"I like how it helps us identify high-intent accounts and aids in prioritizing and routing. What I like most is how naturally it fits into Salesforce — it becomes part of our daily workflow rather than a separate tool."
Verified User for 6sense
V

Verified G2 Reviewer

Head of Sales Development, B2B SaaS

"The accuracy of valid emails and the LinkedIn enrichment profile you can use inside Clay is excellent. It's become a core part of our outbound stack — clean data, easy to use, and the API is rock solid."
Verified User for Prospeo

Frequently Asked Questions

Is 6sense better than Prospeo?

It depends on your use case. 6sense The agent-powered Revenue Intelligence platform that uncovers and converts dark pipeline Prospeo Fast, accurate email and mobile finder with best-in-class LinkedIn Sales Navigator integration and a pay-only-for-valid-results credit model

What is the difference between 6sense and Prospeo?

See the feature-by-feature comparison above. In short: 6sense focuses on The agent-powered Revenue Intelligence platform that uncovers and converts dark pipeline while Prospeo focuses on Fast, accurate email and mobile finder with best-in-class LinkedIn Sales Navigator integration and a pay-only-for-valid-results credit model.

How much does 6sense cost compared to Prospeo?

6sense pricing model: Modular subscription with add-on credits. Prospeo pricing model: Credit-based subscription.

Is 6sense or Prospeo 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 6sense?

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 6sense The agent-powered Revenue Intelligence platform that uncovers and converts dark pipeline

What is the difference between Explorium and 6sense?

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 6sense focuses on The agent-powered Revenue Intelligence platform that uncovers and converts dark pipeline.

How much does Explorium cost compared to 6sense?

Explorium pricing model: Usage-based with custom plans. 6sense pricing model: Modular subscription with add-on credits.

Is Explorium or 6sense 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 Prospeo?

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 Prospeo Fast, accurate email and mobile finder with best-in-class LinkedIn Sales Navigator integration and a pay-only-for-valid-results credit model

What is the difference between Explorium and Prospeo?

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 Prospeo focuses on Fast, accurate email and mobile finder with best-in-class LinkedIn Sales Navigator integration and a pay-only-for-valid-results credit model.

How much does Explorium cost compared to Prospeo?

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

Is Explorium or Prospeo 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.

What makes 6sense's intent data different from other providers?

6sense claims nearly 10x the intent coverage of competing providers, tracking over 16,000 B2B intent topics across 4.9 million unique domains via billions of monthly interactions. Unlike point-in-time snapshots, 6sense aggregates signals continuously from search, trade publications, forums, and communities, then uses BERT-based machine learning to understand the meaning behind content consumption — not just keyword matching.

Does 6sense offer a free plan or free trial?

6sense offers a permanent free plan that provides 50 credits per month, giving individual users access to basic Sales Intelligence features including company and contact lookups across 200+ countries. There is no time-limited free trial for paid tiers — access to predictive AI, intent data, and advertising modules requires a paid contract.

How does 6sense pricing work in 2026?

In 2025, 6sense eliminated named pricing tiers and moved to a modular structure. Buyers configure a base Sales Intelligence license and add modules such as Predictive AI, Data Credits, AI Email, and Advertising. All paid contracts are custom-quoted via sales, with mid-market teams typically paying $40,000–$55,000/year (median ~$55,211 per Vendr data) and enterprise deals exceeding $100,000–$200,000/year. Annual contracts are required with no monthly billing option.

What security and compliance certifications does 6sense hold?

6sense holds SOC 2 Type 2 certification covering all five AICPA Trust Services Criteria (Security, Privacy, Availability, Confidentiality, and Processing Integrity), ISO/IEC 27001:2022 for information security management, ISO/IEC 42001:2023 for AI governance, and annual TRUSTe GDPR and CCPA validations. The platform complies with GDPR, CCPA/CPRA, and the UK-US and Swiss-US Data Privacy Framework.

Which CRMs and sales tools does 6sense integrate with natively?

6sense natively integrates with Salesforce, HubSpot, and Microsoft Dynamics for CRM synchronization, and with Outreach and Salesloft for sales engagement. Notably, Pipedrive and Zapier are not supported natively. The platform also offers a full API for real-time enrichment and custom integrations into internal systems.

How many company and contact profiles does 6sense cover globally?

6sense provides access to 75M+ company profiles and 481M+ buyer profiles spanning 200+ countries. Data is verified through 15+ online sources and updated monthly, with intent signals processed on a continuous basis.

Does 6sense have a Claude Code Skill or Claude Plugin?

Not officially — 6sense 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 does Prospeo's credit system work for CATCH_ALL emails?

Prospeo only charges credits when it returns a VALID verified email address — one that has passed all 5 steps of its verification process and is confirmed deliverable. CATCH_ALL emails (domains that accept all incoming mail, making deliverability uncertain) and contacts where no email is found are returned without consuming any credits. This means your per-valid-email cost is predictable and you are not paying for results that would bounce.

Why does Prospeo's bulk match rate sometimes appear lower than the claimed 92%?

The 92% match rate refers to the enrichment API when queried with a full name and verified company domain. In large bulk Sales Navigator exports, the match rate can drop significantly (sometimes to 15-20%) because the input data quality is lower — incorrect company names, job title changes, or people who have since left LinkedIn. The headline accuracy figure of 98% applies to emails that are returned as VALID, not to the share of a list that can be found at all.

How does Prospeo integrate with Clay?

Prospeo has a native Clay integration that makes it one of the preferred email enrichment sources within Clay workflows. Clay users can add a Prospeo enrichment step in any table to find and verify email addresses using Prospeo's API credits. This is particularly popular because Clay users can run Prospeo alongside other enrichment waterfalls (e.g., Apollo, Hunter) to maximize match rates while controlling cost.

What makes Prospeo's 7-day data refresh different from other email finders?

Most email finder databases are refreshed on a monthly or quarterly basis. Prospeo's 7-day refresh cycle means contact email validity is rechecked weekly, which reduces the likelihood that an email that was valid last month has since bounced due to the person changing jobs or the company updating its email infrastructure. This translates to better deliverability rates on outbound campaigns built from Prospeo data.

Does Prospeo support mobile phone number finding, or only emails?

Yes — Prospeo includes a Mobile Finder feature that surfaces B2B mobile phone numbers for prospects in addition to email addresses. Mobile number coverage is more limited than email coverage (as is true across the industry), but Prospeo describes its phone data as 'exclusive B2B phone data' that is separate from its email verification pipeline. Mobile lookups are available as part of the same credit-based pricing model.

Does Prospeo have a Claude Code Skill or Claude Plugin?

Prospeo 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.