Explorium vs 6sense vs LeadIQ

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

6sense

4.3

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

  • API
  • GDPR Compliance

LeadIQ

4.2

The prospecting platform built for modern sales reps — LinkedIn-native data capture, AI email writing, and champion tracking in one workflow

  • API
  • Free Trial
  • GDPR Compliance

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

LeadIQ

  • One-Click LinkedIn Prospecting

    The LeadIQ Chrome extension sits on top of LinkedIn and LinkedIn Sales Navigator, letting reps capture verified email addresses and phone numbers with a single click and sync them directly to Salesforce, HubSpot, Outreach, or Salesloft. Users report saving 10–15 hours per BDR per month previously spent on manual data entry.

  • Champion Tracking

    LeadIQ monitors contacts who have previously engaged with or purchased from your team, alerting reps when they change companies. Each alert includes the new employer, role, and updated contact details, along with a suggested outreach angle — turning job changes into a warm pipeline source without any manual research.

  • AI-Powered Email Personalization

    Scribe, LeadIQ's built-in AI email writer, generates personalized outbound emails based on the prospect's LinkedIn profile, company news, and job title. It reduces time-per-email for reps doing high-volume outreach and integrates directly into Outreach and Salesloft sequences.

Signals powering these use cases

  • Champion Tracking — real-time alerts when buyers change companies
  • Job change detection with new employer, role, and updated contact details
  • AI Scribe — personalized email generation based on prospect profile
  • Multi-source email enrichment querying 9 data providers for higher accuracy
  • One-click LinkedIn capture with immediate CRM sync

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

LeadIQ Snapshot

  • Signals depth 1.8
  • Freshness 2.7

Detailed Feature Comparison

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

Feature Comparison
Explorium
6sense
LeadIQ
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 API; Salesforce Managed Package for native CRM enrichment
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
Not publicly specified
-
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 and CCPA compliant; SOC 2 certified
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; strongest in North America and EMEA
CRM Integration
Available on custom enterprise plans
Salesforce, HubSpot, Microsoft Dynamics
Salesforce, HubSpot, Pipedrive; Outreach, Salesloft, Groove by Clari
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 app, Chrome extension (LinkedIn-native), API
Natural language search
-
Workflow automation
Automation integrations
n8n, Claude, custom webhook integrations
Outreach, Salesloft, Marketo
Outreach, Salesloft, Groove by Clari, Zapier, Workato, Clay
Company coverage
150M+ company profiles
75M+ company profiles
-
People coverage
800M+ people profiles (767M+ verified contacts)
481M+ buyer profiles
Multi-source enrichment querying 9 data providers; stated 85% global mobile match rate
Geographic coverage
150+ countries
200+ countries
Global coverage; strong in North America and EMEA
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
Multi-provider aggregation (9 sources); real-time LinkedIn profile verification; proprietary data layer
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
Unified platform schema across all geographies
Consistent output: verified email, phone, job title, company, LinkedIn profile
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Monthly data verification; intent signals processed continuously
Real-time verification at point of capture via Chrome extension; job change alerts updated continuously
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, LinkedIn company page
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Contact-level emails, phone numbers, roles, seniority, engagement history
Verified work email, mobile phone, direct dial, job title, LinkedIn profile, job change signals
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Firmographics, technographics, intent, predictive scores, contact data
Email enrichment, phone enrichment, champion tracking, AI email generation, account prospecting
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
Champion Tracking: job change alerts with new employer, role, and contact details
Technographics
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
AI-powered account and contact matching with predictive confidence scoring
85% stated global mobile match rate; email accuracy varies by industry and company size
Confidence scoring
Validation methodology
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
15+ online sources cross-verified monthly; AI-based deduplication
Multi-source aggregation across 9 providers with confidence scoring; real-time LinkedIn profile check at capture
Deduplication logic
Advanced ML-based deduplication across 50+ data providers
AI-based entity resolution across company and contact records
CRM duplicate checking before sync to prevent duplicate record creation in Salesforce and HubSpot
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
Real-time enrichment API; specific QPS not publicly disclosed
-
CRM integrations
Custom plan — CRM integrations available
Salesforce, HubSpot, Microsoft Dynamics
Salesforce, HubSpot, Pipedrive
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
-
Pricing model
Usage-based API credits with custom enterprise plans
Modular subscription
Per-user subscription
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
Universal credits: 1 credit = 1 verified email; 10 credits = 1 phone number; credits do not roll over (expire monthly or annually)
Tier structure
Free trial, Self-serve, Custom Enterprise
Free + custom enterprise modules (no named paid tiers as of 2025)
Free, Essential ($39/user/mo annual), Pro ($79/user/mo annual), Enterprise (custom)
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
Permanent free plan: 50 verified emails, 5 mobile numbers, 40 Scribe AI emails, 10 tracked accounts per month
Budget commitment options
Custom enterprise plans with volume negotiation
Annual minimum; multi-year discounts available
Monthly or annual billing; per-user pricing scales linearly with team size
Custom plans available
Bulk deals support
Resell rights
-
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

Pricing Dimension
Explorium
6sense
LeadIQ
Pricing Model
Usage-based with custom enterprise plans
Modular subscription; base Sales Intelligence license plus configurable add-on modules
Per-user subscription with monthly credit allocations
Commitment Structure
One-time or custom; no mandatory annual lock-in on self-serve
Annual contracts required; multi-year agreements common for enterprise
Monthly or annual; annual pricing provides meaningful discount (~15–20%)
Payment Recurrence
One-time or custom
Annual
Monthly or Annual
Free Trial
30-day free trial with 100 credits; no credit card required
Free plan available with 50 credits/month; no time-limited trial
Permanent free plan: 50 verified emails + 5 mobile numbers/month + 40 AI-generated Scribe emails + 10 tracked accounts
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; dedicated account management; custom integrations; typically $15,000–$30,000/year for mid-size orgs
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 for Essential and Pro; dedicated onboarding and CSM for Enterprise

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

Senior Account Executive, Mid-Market SaaS Company

"I like how I am able to export contacts directly into Outreach sequences from LeadIQ without having any manual actions to perform in Salesforce. The direct integration to Groove has been a game changer for our org. The job change tracking is incredibly valuable — I've closed deals with former champions who moved to new companies and remembered us."
Verified User for LeadIQ

Frequently Asked Questions

Is 6sense better than LeadIQ?

It depends on your use case. 6sense The agent-powered Revenue Intelligence platform that uncovers and converts dark pipeline LeadIQ The prospecting platform built for modern sales reps — LinkedIn-native data capture, AI email writing, and champion tracking in one workflow

What is the difference between 6sense and LeadIQ?

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 LeadIQ focuses on The prospecting platform built for modern sales reps — LinkedIn-native data capture, AI email writing, and champion tracking in one workflow.

How much does 6sense cost compared to LeadIQ?

6sense pricing model: Modular subscription with add-on credits. LeadIQ pricing model: Per-user subscription with monthly credit allocations.

Is 6sense or LeadIQ 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 LeadIQ?

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 LeadIQ The prospecting platform built for modern sales reps — LinkedIn-native data capture, AI email writing, and champion tracking in one workflow

What is the difference between Explorium and LeadIQ?

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 LeadIQ focuses on The prospecting platform built for modern sales reps — LinkedIn-native data capture, AI email writing, and champion tracking in one workflow.

How much does Explorium cost compared to LeadIQ?

Explorium pricing model: Usage-based with custom plans. LeadIQ pricing model: Per-user subscription with monthly credit allocations.

Is Explorium or LeadIQ 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 LeadIQ's Champion Tracking work, and what triggers an alert?

Champion Tracking monitors contacts you designate — typically buyers who have engaged with or purchased from your team — and checks for employment changes on an ongoing basis. When LeadIQ detects that a tracked contact has moved to a new company, it sends an alert with their new employer name, job title, updated email address, and a suggested outreach angle. The feature is designed to capture the window when a champion has just joined a new company and is in active buying mode — typically the first 90 days in a new role.

Why do users report poor phone number quality from LeadIQ?

Phone number accuracy is LeadIQ's most frequently cited weakness on G2. The issues typically fall into three categories: outdated numbers that haven't been refreshed since a contact changed roles, personal cell numbers rather than direct business lines, and numbers that connect to the wrong person entirely. LeadIQ states an 85% global mobile match rate, but user experiences vary significantly by industry, company size, and geography. Phone data tends to be more reliable for larger companies in North America and less reliable for SMBs, international markets, and niche verticals.

What is LeadIQ Scribe and how does it differ from other AI email tools?

Scribe is LeadIQ's built-in AI email writer that generates personalized cold email drafts at the point of prospect capture. Unlike standalone AI writing tools, Scribe uses the prospect's LinkedIn profile, recent company news, job title, and company context that LeadIQ has already surfaced — so the personalization is grounded in live prospect data rather than generic prompts. It is integrated directly into Outreach and Salesloft workflows, allowing reps to go from LinkedIn profile to personalized email draft in a single workflow without switching tools.

Do LeadIQ credits roll over if I don't use them all in a month?

No. On monthly billing plans, unused credits expire at the end of each calendar month. On annual plans, unused credits expire at the end of the subscription year. This is a meaningful cost consideration for teams with inconsistent outreach cadences — if your team runs a large prospecting push in Q1 and slows down in Q2, the credits from slow months are forfeited. Teams that anticipate usage variability should factor this into plan selection or consider negotiating a custom arrangement at Enterprise tier.

How does LeadIQ handle data accuracy when querying multiple providers?

LeadIQ queries up to 9 third-party data providers simultaneously when capturing a contact and uses a confidence scoring system to surface the highest-probability email address. When multiple providers agree on the same email, the confidence score is higher; when results conflict, the score is lower and LeadIQ flags the result for the user. This multi-source approach increases the likelihood of finding a valid email compared to single-source tools, but it also means that the accuracy ceiling is bounded by the quality of the underlying provider network — which varies by geography and industry.

Does LeadIQ have a Claude Code Skill or Claude Plugin?

Not officially — LeadIQ 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.