Explorium vs Numverify vs Owler

Objective, side-by-side analysis of Explorium, Numverify, and Owler 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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Numverify

The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries

  • API
  • Free Trial
  • GDPR Compliance

Selected Customers

Huawei

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Owler

4.3

Crowdsourced competitive intelligence that keeps you informed about competitors, prospects, and market trends without manual research

  • API
  • Free Trial
  • GDPR Compliance
15M+
Companies

Selected Customers

Meltwater • Sales teams at SMBs and mid-market companies • PR and communications firms • Market research teams

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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

Numverify

  • Global Phone Validation

    Validate national and international phone numbers across 232 countries in real time, confirming whether a number is active, properly formatted, and reachable.

  • Carrier & Line Type Lookup

    Identify the mobile carrier or telecom provider associated with any phone number, and determine line type (mobile, landline, VoIP) to optimize SMS and voice delivery strategies.

  • Fraud Prevention & Data Quality

    Detect invalid or suspicious phone entries at registration or during CRM cleansing, reducing fraud vectors and improving the overall quality of customer contact data.

Signals powering these use cases

  • Supports 232 countries for international phone coverage
  • Real-time cross-check against international numbering plan databases
  • 256-bit HTTPS encryption on all API connections
  • 99.9% uptime SLA
  • Owned by APILayer, part of the Sinch group

Owler

  • Competitive Intelligence

    Track competitors' activities, funding events, product launches, and executive changes in real time. The Competitive Graph feature maps direct and indirect competitors to give a full picture of the competitive landscape.

  • Daily Sales Alerts

    Receive personalized Daily Snapshot emails summarizing news and signals for followed companies. Custom alerts ensure sales reps never miss a trigger event like a funding round or leadership change at a target account.

  • Private Company Research

    Access revenue estimates, headcount data, and firmographics for millions of private companies that are not covered by traditional data providers. Crowdsourced contributions from 5 million professionals fill data gaps on smaller, harder-to-research firms.

Signals powering these use cases

  • Funding rounds
  • Acquisitions
  • Executive changes
  • Revenue estimates
  • Company news
  • Competitor activity alerts

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

Numverify Snapshot

  • Signals depth 2.9
  • Freshness 5.0

Owler Snapshot

  • Company coverage 1.2
  • Signals depth 3.4
  • Freshness 1.5

Detailed Feature Comparison

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

Feature Comparison
Explorium
Numverify
Owler
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 REST JSON API with API key authentication
Available on paid plans
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
99.9% uptime
-
Compliance
GDPR, SOC 2, CCPA, ISO 27001
GDPR-compliant; data processed under Austrian data protection law
GDPR-aware as a Meltwater product
Custom Entities
-
-
Real-time Lookups
Global Coverage
150M+ companies and 800M+ contacts across 150+ countries
232 countries
15M+ companies globally
CRM Integration
Available on custom enterprise plans
-
Salesforce on Enterprise tier
Platform interface
REST JSON API, MCP server (AgentSource MCP), batch support up to 100 entities, webhooks, sync and async modes
API only; no standalone UI for prospecting
Web app + daily email digest + Chrome extension
Natural language search
Workflow automation
Automation integrations
n8n, Claude, custom webhook integrations
Compatible with any HTTP-capable automation tool (Zapier, Make, etc.) via REST API
Zapier, Slack
Company coverage
150M+ company profiles
-
15M+ company profiles (private and public)
People coverage
800M+ people profiles (767M+ verified contacts)
-
Executive profiles included within company records
Geographic coverage
150+ countries
232 countries worldwide
Global, with strongest coverage in US and English-speaking markets
Data sources type
50+ data providers; proprietary ML enrichment; real-time web signals
International numbering plan databases, carrier registry data
Crowdsourced community contributions + algorithmic estimates + public news sources
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
Standardized JSON response schema across all countries
Moderate — crowdsourced data quality varies by region
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Real-time on-demand lookups
Daily news refresh; community data updated on contribution
Business enrichments
Company size, revenue, industry, tech stack, funding stage, headcount trends, competitive landscape, website traffic
-
Revenue estimates, funding rounds, M&A, headcount, industry classification
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Phone number validity, carrier, line type, location
Executive names and titles; limited contact details
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Phone number validation, carrier data, line type, geographic location
Revenue estimates, employee count, funding history, acquisitions, CEO approval ratings, news
Intent data
Event signals
Company events (20+ types), people events (5+ types), funding rounds, acquisitions, hiring surges
-
Funding events, acquisitions, leadership changes, product launches, layoffs
Technographics
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
Phone number format and carrier registry matching
Moderate — crowdsourced estimates can have significant variance for private companies
Confidence scoring
Validation methodology
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
Cross-check against latest international numbering plan databases
Crowdsourced community verification + algorithmic cross-referencing
Deduplication logic
Advanced ML-based deduplication across 50+ data providers
-
Platform-managed deduplication of company profiles
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
-
-
CRM integrations
Custom plan — CRM integrations available
-
Salesforce (via Owler Max/Enterprise)
Data warehouse support
Custom plan — warehouse ingestion available
-
-
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
99.9% uptime
-
Pricing model
Usage-based API credits with custom enterprise plans
Tiered subscription by monthly API call volume
Per-user subscription tiers
Credit system
Credit-based; 100 credits on free trial; self-serve and custom plans scale with volume
No credit system; plans are billed by monthly API request quota
No credit-based model; flat subscription
Tier structure
Free trial, Self-serve, Custom Enterprise
Free (100 calls), Basic ($14.99/mo, 5K calls), Professional ($59.99/mo, 50K calls), Business ($129.99/mo, 250K calls), Volume (custom)
Community → Pro → Max → Enterprise
Free trial details
30-day free trial with 100 credits; covers API and MCP access
Permanent free plan with 100 monthly API calls, no time limit
Free Community tier — basic company profiles and news alerts
Budget commitment options
Custom enterprise plans with volume negotiation
Monthly or annual billing; up to 15% savings on annual
Annual billing with discounted rate
Custom plans available
Bulk deals support
Resell rights
-
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

Pricing Dimension
Explorium
Numverify
Owler
Pricing Model
Usage-based with custom enterprise plans
Tiered subscription by monthly API call volume
Per-user subscription
Commitment Structure
One-time or custom; no mandatory annual lock-in on self-serve
Month-to-month or annual (up to 15% discount)
Annual commitment for paid tiers; month-to-month available
Payment Recurrence
One-time or custom
Monthly or Annual
Annual (monthly also available at higher rate)
Free Trial
30-day free trial with 100 credits; no credit card required
Permanent free tier — 100 requests/month, no credit card required
Free Community tier with limited features
Enterprise Customization
Yes — custom plans include CRM integrations, warehouse ingestion, resell rights, and dedicated support
Volume plan available with custom request limits
Yes — Enterprise (Owler Max) plan with custom pricing
Onboarding Model
Self-serve for API and MCP; dedicated onboarding for enterprise custom plans
Self-serve; sign up and receive API key immediately
Self-serve for Community and Pro; guided onboarding 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 Reviewer

Backend Engineer

"Numverify is straightforward to integrate and does exactly what it promises. The carrier and line type data has been essential for our SMS campaign routing, and coverage across 232 countries means we rarely hit gaps in our global user base."
Verified User for Numverify
V

Verified G2 Reviewer

Sales Manager, Mid-Market B2B Company

"Custom alerts ensure we never miss critical updates, dramatically improving our competitive intelligence efforts. News is wrapped up into one email — way easier to digest than individual alerts."
Verified User for Owler

Frequently Asked Questions

Is Numverify better than Owler?

It depends on your use case. Numverify The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries Owler Crowdsourced competitive intelligence that keeps you informed about competitors, prospects, and market trends without manual research

What is the difference between Numverify and Owler?

See the feature-by-feature comparison above. In short: Numverify focuses on The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries while Owler focuses on Crowdsourced competitive intelligence that keeps you informed about competitors, prospects, and market trends without manual research.

How much does Numverify cost compared to Owler?

Numverify pricing model: Usage-based subscription (monthly API requests). Owler pricing model: Subscription (per user, annual billing).

Is Numverify or Owler 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 Numverify?

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 Numverify The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries

What is the difference between Explorium and Numverify?

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 Numverify focuses on The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries.

How much does Explorium cost compared to Numverify?

Explorium pricing model: Usage-based with custom plans. Numverify pricing model: Usage-based subscription (monthly API requests).

Is Explorium or Numverify 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 Owler?

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 Owler Crowdsourced competitive intelligence that keeps you informed about competitors, prospects, and market trends without manual research

What is the difference between Explorium and Owler?

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 Owler focuses on Crowdsourced competitive intelligence that keeps you informed about competitors, prospects, and market trends without manual research.

How much does Explorium cost compared to Owler?

Explorium pricing model: Usage-based with custom plans. Owler pricing model: Subscription (per user, annual billing).

Is Explorium or Owler 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 Numverify validate whether a phone number is currently active?

No. Numverify validates that a number is properly formatted and registered to a carrier according to international numbering plan databases, but it does not perform real-time network pings to confirm whether the line is currently active or in service.

What countries does Numverify support?

Numverify supports phone number validation and carrier lookup for 232 countries, covering mobile, landline, VoIP, and business number types.

Is there a free tier available?

Yes. Numverify offers a permanent free plan with 100 monthly API requests, no time limit, and no credit card required — making it easy to test the API before committing to a paid plan.

Is Numverify GDPR compliant?

Yes. Data processing is conducted in compliance with the GDPR and the Austrian Data Protection Act. All API connections use 256-bit HTTPS encryption.

Who owns and operates Numverify?

Numverify is a product built and maintained by APILayer, an Austrian technology company headquartered in Vienna. APILayer is part of the Sinch group.

Does Numverify have a Claude Code Skill or Claude Plugin?

Numverify 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 accurate are Owler's revenue and employee estimates for private companies?

Owler's revenue estimates are crowdsourced and algorithmically derived, which means accuracy varies significantly. For well-known companies with active community contributors, estimates are reasonably close. For smaller or niche private companies, the figures can be off by a large margin. Owler itself notes that data is 'crowdsourced and algorithmic' and recommends treating estimates as directional rather than definitive. Users doing due diligence on financials should cross-reference with other sources.

How does Owler's Competitive Graph work and how is it built?

The Competitive Graph is built by Owler's community — users nominate competitors for companies they know, and these relationships are aggregated into a graph data structure. When you follow a company, Owler surfaces not just its direct competitors but also secondary and tertiary competitors based on community-reported overlaps. This creates a broader landscape view than manually curating a competitor list would provide.

What changed when Meltwater acquired Owler in 2021?

Meltwater acquired Owler for approximately $24.5 million in June 2021. Post-acquisition, Owler has been positioned as a complementary product within the Meltwater ecosystem, which also includes media monitoring and social listening tools. The Owler platform has continued to operate as a standalone product under the 'Owler — A Meltwater Offering' brand, with Meltwater customers able to access combined media and competitive intelligence capabilities.

Does Owler provide contact-level data like emails or phone numbers?

Owler is primarily a company-level intelligence platform. It surfaces executive names and titles within company profiles but does not provide verified email addresses or phone numbers in the way that dedicated sales intelligence platforms like ZoomInfo or Apollo do. For contact enrichment, users typically need to combine Owler's company signals with a separate contact data provider.

How does Owler compare to Crunchbase for private company research?

Owler and Crunchbase serve overlapping but different needs. Crunchbase is stronger for structured funding data, startup ecosystem coverage, and investor relationships. Owler's strengths are its larger community, daily news monitoring, competitive graph, and coverage of smaller private companies that don't have formal funding histories. Owler is better for ongoing sales intelligence and monitoring; Crunchbase is better for one-time startup and funding research.

Does Owler have a Claude Code Skill or Claude Plugin?

Owler 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.