Explorium vs Grata vs Numverify

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

4.8

The leading AI-native private market intelligence platform for dealmakers

  • API
  • Free Trial
  • GDPR Compliance
21M+
Companies
150+
Data Points

Selected Customers

Copley Equity Partners • Normandy

View Provider

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

View Provider

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

Grata

  • AI-Powered Deal Sourcing

    Search 21M+ private companies using natural language and advanced filters to identify founder-owned, bootstrapped, and non-sponsored businesses that match investment criteria.

  • CRM Pipeline Management

    Sync deal pipelines with Salesforce, HubSpot, DealCloud, Affinity, and Altvia via two-way integration to track targets and manage relationships from discovery to close.

  • Market Mapping & Screening

    Map entire industries, identify comp sets, and screen companies at scale using proprietary financials, headcount data, and growth signals unavailable in public databases.

Signals powering these use cases

  • Private company financials
  • Headcount estimates
  • Growth indicators
  • Transaction history
  • Conference attendance

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

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

Grata Snapshot

  • Company coverage 1.3
  • Signals depth 2.6

Numverify Snapshot

  • Signals depth 2.9
  • Freshness 5.0

Detailed Feature Comparison

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

Feature Comparison
Explorium
Grata
Numverify
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
Credit-based API with 150 data points across 12M+ private companies
Full REST JSON API with API key authentication
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
-
99.9% uptime
Compliance
GDPR, SOC 2, CCPA, ISO 27001
SOC 2 certified, GDPR compliant, enterprise-grade encryption
GDPR-compliant; data processed under Austrian data protection law
Custom Entities
-
-
Real-time Lookups
Global Coverage
150M+ companies and 800M+ contacts across 150+ countries
US, UK, France, Germany, Australia
232 countries
CRM Integration
Available on custom enterprise plans
Salesforce, HubSpot, DealCloud, Affinity, Altvia, Investorflow (two-way sync)
-
Platform interface
REST JSON API, MCP server (AgentSource MCP), batch support up to 100 entities, webhooks, sync and async modes
Web app + API
API only; no standalone UI for prospecting
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
Company coverage
150M+ company profiles
21M+ private companies
-
People coverage
800M+ people profiles (767M+ verified contacts)
-
-
Geographic coverage
150+ countries
US, UK, France, Germany, Australia
232 countries worldwide
Data sources type
50+ data providers; proprietary ML enrichment; real-time web signals
AI extraction, ML models, proprietary research, data science
International numbering plan databases, carrier registry data
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
-
Standardized JSON response schema across all countries
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
-
Real-time on-demand lookups
Business enrichments
Company size, revenue, industry, tech stack, funding stage, headcount trends, competitive landscape, website traffic
Revenue estimates, employee count, funding, industry, location, transaction history
-
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Executive contacts, conference attendance
Phone number validity, carrier, line type, location
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Financials, headcount, transactions, growth signals, conference data
Phone number validation, carrier data, line type, geographic location
Intent data
Event signals
Company events (20+ types), people events (5+ types), funding rounds, acquisitions, hiring surges
Conference attendance via Autopilot feature
-
Technographics
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
-
Phone number format and carrier registry matching
Confidence scoring
Validation methodology
Advanced ML-based deduplication; 98%+ company accuracy; 95% people accuracy
AI extraction + proprietary research achieving 99% accuracy claim
Cross-check against latest international numbering plan databases
Deduplication logic
Advanced ML-based deduplication across 50+ data providers
-
-
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
-
-
CRM integrations
Custom plan — CRM integrations available
Salesforce, HubSpot, DealCloud, Affinity, Altvia, Investorflow
-
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
Annual subscription (Light, Essential, Pro)
Tiered subscription by monthly API call volume
Credit system
Credit-based; 100 credits on free trial; self-serve and custom plans scale with volume
Credit-based API access
No credit system; plans are billed by monthly API request quota
Tier structure
Free trial, Self-serve, Custom Enterprise
Light, Essential, Pro
Free (100 calls), Basic ($14.99/mo, 5K calls), Professional ($59.99/mo, 50K calls), Business ($129.99/mo, 250K calls), Volume (custom)
Free trial details
30-day free trial with 100 credits; covers API and MCP access
Free trial available
Permanent free plan with 100 monthly API calls, no time limit
Budget commitment options
Custom enterprise plans with volume negotiation
Annual
Monthly or annual billing; up to 15% savings on annual
Custom plans available
Bulk deals support
Resell rights
-
-
-

Pricing

Compare pricing models, flexibility, and commitment structure.

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

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

Private Equity Analyst

"Using Grata, I can accomplish 8-10 hours of work in 1-2 hours. I use Grata to build target lists for buyside private equity searches — it is the most comprehensive tool I have found for this use case."
Verified User for Grata
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

Frequently Asked Questions

Is Grata better than Numverify?

It depends on your use case. Grata The leading AI-native private market intelligence platform for dealmakers Numverify The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries

What is the difference between Grata and Numverify?

See the feature-by-feature comparison above. In short: Grata focuses on The leading AI-native private market intelligence platform for dealmakers while Numverify focuses on The simplest, most reliable API for international phone number validation and carrier lookup across 232 countries.

How much does Grata cost compared to Numverify?

Grata pricing model: Subscription (annual). Numverify pricing model: Usage-based subscription (monthly API requests).

Is Grata 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 Grata?

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 Grata The leading AI-native private market intelligence platform for dealmakers

What is the difference between Explorium and Grata?

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 Grata focuses on The leading AI-native private market intelligence platform for dealmakers.

How much does Explorium cost compared to Grata?

Explorium pricing model: Usage-based with custom plans. Grata pricing model: Subscription (annual).

Is Explorium or Grata 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.

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.

How does Grata find private companies that aren't on other databases?

Grata uses a combination of AI extraction, machine learning models, proprietary research, and data science to index 21M+ private companies — including founder-owned, bootstrapped, and non-sponsored businesses that don't appear in traditional databases like PitchBook or Crunchbase.

What CRM systems does Grata integrate with?

Grata offers two-way sync with Salesforce, HubSpot, DealCloud, Affinity, Altvia, and Investorflow, allowing teams to push and pull company data and pipeline status without leaving their existing workflow tools.

Is Grata's data accurate enough for investment decisions?

Grata claims 99% data accuracy, achieved through its proprietary AI extraction and validation methodology. The platform includes private company financials, headcount estimates, and growth indicators specifically designed for investment-grade due diligence.

Does Grata have an API for programmatic access?

Yes. Grata offers a credit-based API providing access to 150+ data points across 12M+ private companies, suitable for building proprietary sourcing systems or enriching existing datasets.

Is Grata still independent after the Datasite acquisition?

Grata was acquired by Datasite in June 2025 and now operates as a business unit within Datasite. The platform continues to operate and develop independently under the Grata brand.

Does Grata have a Claude Code Skill or Claude Plugin?

Not officially — Grata 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.

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.