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
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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.
The unified B2B data API and MCP suite — 150M+ companies, 800M+ contacts, 4,000+ data points, and native AI agent integration in one platform
The agent-powered Revenue Intelligence platform that uncovers and converts dark pipeline
The prospecting platform built for modern sales reps — LinkedIn-native data capture, AI email writing, and champion tracking in one workflow
Compare the core applications and workflows each provider specializes in.
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.
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.
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.
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.
Coordinate personalized marketing and sales motions across channels — advertising, email, web personalization, and CRM workflows — triggered by AI-detected buying signals.
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.
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.
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.
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.
Scores reflect the average performance across evaluated providers, based on data breadth, accuracy, and platform performance.
Side-by-side analysis of Explorium, 6sense, and LeadIQ across data coverage, platform capabilities, and technical specifications.
Compare pricing models, flexibility, and commitment structure.
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."
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."
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."
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
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.
6sense pricing model: Modular subscription with add-on credits. LeadIQ pricing model: Per-user subscription with monthly credit allocations.
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.
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
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.
Explorium pricing model: Usage-based with custom plans. 6sense pricing model: Modular subscription with add-on credits.
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.
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
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.
Explorium pricing model: Usage-based with custom plans. LeadIQ pricing model: Per-user subscription with monthly credit allocations.
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.
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.
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.
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.
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.
High-velocity signals (intent, events, hiring) refresh daily. Semi-dynamic attributes refresh weekly. Stable firmographic fields refresh monthly or quarterly.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.