Explorium vs Ocean.io vs Prospeo

Objective, side-by-side analysis of Explorium, Ocean.io, 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

Ocean.io

3.4

The AI lookalike engine that turns your best customers into your best leads

  • API
  • Free Trial
  • GDPR Compliance

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

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

Ocean.io

  • AI Lookalike Prospecting

    Ocean.io's core ML and NLP model analyzes how companies describe themselves on their websites to understand what they actually do — then finds companies with the same characteristics. By connecting your CRM, the algorithm builds a statistical profile of your best customers and returns lookalike prospects ranked by similarity, dramatically improving targeting precision over keyword or SIC-code approaches.

  • Buying Committee Discovery

    Beyond account-level targeting, Ocean.io surfaces the full buying committee within each target company using its 250M+ contact database. Users can filter by seniority, department, and role to identify every relevant decision-maker and influencer, enabling multi-threaded outreach strategies across accounts.

  • ICP List Building & ABM

    Marketing teams use Ocean.io to build highly targeted account lists for ABM campaigns by combining lookalike scoring with 200+ filters — technology stack, company size, geography, and contact seniority. CRM integrations with HubSpot, Salesforce, and Pipedrive sync target accounts directly into existing workflows without manual exports.

Signals powering these use cases

  • Lookalike company match score
  • ICP fit indicators
  • Technology stack filters
  • Contact seniority level
  • Company size and growth

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

Ocean.io Snapshot

  • Company coverage 2.3
  • Signals depth 2.5

Prospeo Snapshot

Detailed Feature Comparison

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

Feature Comparison
Explorium
Ocean.io
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
Available on Professional and custom plans
Full enrichment API with JSON responses and 99.99% uptime SLA
SLA
Up to 99.999% uptime; rate limit 200 requests/min per key
-
99.99% uptime
Compliance
GDPR, SOC 2, CCPA, ISO 27001
GDPR and CCPA compliant
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
35M+ global company profiles
Global LinkedIn coverage with 7-day refresh
CRM Integration
Available on custom enterprise plans
HubSpot, Salesforce, Pipedrive native integrations
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 app, API, CRM integrations
Web dashboard, Chrome extension, CSV bulk upload, API
Natural language search
Workflow automation
Automation integrations
n8n, Claude, custom webhook integrations
LinkedIn
Zapier, Instantly, Clay
Company coverage
150M+ company profiles
35M+ company profiles
-
People coverage
800M+ people profiles (767M+ verified contacts)
250M+ LinkedIn-sourced contact profiles
-
Geographic coverage
150+ countries
Global; US and EU focus
Global, with strongest coverage for profiles on LinkedIn
Data sources type
50+ data providers; proprietary ML enrichment; real-time web signals
Proprietary AI model trained on web content; LinkedIn-sourced contact data; 25+ data scientists maintaining dataset
Proprietary database + LinkedIn enrichment + real-time verification
Global schema consistency
Unified schema across 4,000+ data points globally; consistent API response structure
Normalized across company and contact records
Consistent email + firmographic schema globally
Refresh frequency
Daily for high-velocity signals; weekly for semi-dynamic attributes; monthly/quarterly for stable firmographics
Continuously updated by 25+ data scientists
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, technology stack (200+ filters), ICP fit scoring
Company name, domain, industry, headcount, location
Prospect enrichments
Job title, seniority, verified email, phone, LinkedIn URL, job history, people events
Contact emails, job titles, department, seniority; 99% email success rate claimed
Verified email, mobile number, LinkedIn URL, job title, full name
Enrichment categories
Firmographics, technographics, intent, funding, events, contact, website signals, lookalikes
Company lookalike scores, contact information, technology stack, company size, industry niche
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
-
-
Technographics
Hiring and growth signals
Matching precision
98% company accuracy; 95% people accuracy
ML + NLP analysis of company website language to determine business category and lookalike fit
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
Multi-source verification; 98% CRM match rate; 99% email success rate claimed
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
CRM sync deduplicates against existing accounts
Platform handles deduplication in bulk upload workflows
API availability
QPS performance
Up to 100 QPS; 200 requests/min per API key
-
Millisecond latency
CRM integrations
Custom plan — CRM integrations available
HubSpot, Salesforce, Pipedrive
HubSpot (native), Salesforce (native), Clay (native)
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
-
99.99% uptime
Pricing model
Usage-based API credits with custom enterprise plans
Tiered annual 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
-
1 credit per valid email found; CATCH_ALL and not-found are free
Tier structure
Free trial, Self-serve, Custom Enterprise
Trial (free), Premium ($79/mo), Professional ($129/mo), Custom
Free → Starter ($39) → Growth tiers → Custom enterprise
Free trial details
30-day free trial with 100 credits; covers API and MCP access
14-day free trial with access to core features
Free plan with 75 credits/month — no time limit
Budget commitment options
Custom enterprise plans with volume negotiation
Annual or monthly
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
Ocean.io
Prospeo
Pricing Model
Usage-based with custom enterprise plans
Tiered annual subscription
Monthly credit-based subscription
Commitment Structure
One-time or custom; no mandatory annual lock-in on self-serve
Annual commitment typical; trial available
Month-to-month; no annual commitment required
Payment Recurrence
One-time or custom
Annual (monthly available)
Monthly
Free Trial
30-day free trial with 100 credits; no credit card required
14-day free trial
Free plan with 75 credits/month
Enterprise Customization
Yes — custom plans include CRM integrations, warehouse ingestion, resell rights, and dedicated support
Custom pricing for larger teams and API access
Custom pricing available for high-volume needs
Onboarding Model
Self-serve for API and MCP; dedicated onboarding for enterprise custom plans
Self-serve trial; sales-assisted for enterprise; reported low ease-of-setup score on G2 (5.8)
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

Account Executive, B2B SaaS

"The best thing I like about Ocean.io is that it generates leads which are similar to our current customers. So we can find customers which we know they need us and can directly target them."
Verified User for Ocean.io
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 Ocean.io better than Prospeo?

It depends on your use case. Ocean.io The AI lookalike engine that turns your best customers into your best leads 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 Ocean.io and Prospeo?

See the feature-by-feature comparison above. In short: Ocean.io focuses on The AI lookalike engine that turns your best customers into your best leads 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 Ocean.io cost compared to Prospeo?

Ocean.io pricing model: Tiered annual subscription. Prospeo pricing model: Credit-based subscription.

Is Ocean.io 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 Ocean.io?

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 Ocean.io The AI lookalike engine that turns your best customers into your best leads

What is the difference between Explorium and Ocean.io?

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 Ocean.io focuses on The AI lookalike engine that turns your best customers into your best leads.

How much does Explorium cost compared to Ocean.io?

Explorium pricing model: Usage-based with custom plans. Ocean.io pricing model: Tiered annual subscription.

Is Explorium or Ocean.io 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.

How does Ocean.io's lookalike search differ from filtering by industry or SIC code?

Traditional filters like SIC codes and NAICS classifications are broad, standardized buckets that often group very different businesses together. Ocean.io's NLP model reads each company's own website language to understand what it actually does — its niche, market, and offering — and groups companies based on semantic similarity. This means two companies in the same SIC code might score very differently if one targets SMBs and the other targets enterprise, and a niche software company in a generic 'IT Services' bucket will be matched accurately to true peers.

What does Ocean.io's '98% CRM match rate' actually mean?

Ocean.io claims that 98% of the company profiles it returns can be matched to existing CRM records when syncing, indicating high data quality and clean company identification. This is relevant for deduplication — when you push a list of lookalike companies into HubSpot or Salesforce, 98% will correctly map to an existing or new account without manual intervention. It also reflects the consistency of company naming and domain standardization across the platform.

Can Ocean.io surface contacts beyond LinkedIn profiles?

Ocean.io's contact database is primarily sourced from LinkedIn with 250M+ profiles. The platform provides email addresses with a claimed 99% success rate and allows filtering by seniority, department, and job function to build a full buying committee view. Ocean.io does not aggregate contacts from as many data sources as dedicated enrichment tools like Apollo or ZoomInfo, but the quality is maintained by 25+ in-house data scientists.

Is Ocean.io suitable for companies with no existing customer data to train the lookalike model?

The lookalike model works best when seeded with real customer data from a CRM, but Ocean.io also allows users to manually input seed companies or define ICP criteria without a CRM connection. If you have fewer than 10 customers, the model's accuracy will be lower because it has less signal to work from. In those cases, using a manually curated seed list of known-good ICP companies (even from public sources) is a reasonable alternative to get started.

How does Ocean.io handle GDPR compliance for European contact data?

Ocean.io is both US and EU-GDPR compliant. The platform sources contact data through legitimate interest and public professional profiles, and applies data minimization principles to limit what is stored. The team includes compliance processes for data subject requests and does not store or expose personal data that was not provided through a compliant source. For teams in regulated European industries, Ocean.io's compliance posture is a meaningful differentiator over US-only tools.

Does Ocean.io have a Claude Code Skill or Claude Plugin?

Ocean.io 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 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.