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Comparison

SIE Data vs Clearbit

Clearbit (now part of HubSpot) is the gold standard for firmographic enrichment and IP reveal. SIE Data goes further — delivering intent signals from government filings alongside verified contacts, so you find buyers before they visit your website.

Feature
Clearbit
SIE Data
Primary use case
Firmographic enrichment
Intent signals + verified contacts
Data source
Web scraping, APIs, public data
Federal registries (NPI, FINRA, FMCSA)
Starting price
Free tier (limited) / $99+/mo
$0 (free pilot)
IP-to-company reveal
Yes — core feature
Yes — B2B visitor identification
Intent signals
No (enrichment only)
Surge detection + buying readiness
Auto-buy rules
No
Yes — automated lead delivery
HubSpot integration
Native (acquired by HubSpot)
API + CSV export
Compliance
Basic GDPR
FCRA firewall + TCF + DROP + provenance
Government data
No
NPI, FINRA, FMCSA, state boards
Real-time enrichment API
Yes — fast lookup
Yes — multi-source pipeline
Lead scoring
Fit scoring
Intent + fit + timing scoring
Regulated industry data
Generic firmographics
Industry-specific signals
Intent Type
Inferred from content consumption
Declared intent from actions + consent-verified behavioral data
Built-in Outbound
None — export to external tools
Email, SMS, voice, auto-dialer — 33 channels built in
Consumer Signals
B2B only
167 B2B + 131 consumer — declared intent from both

A note on honesty

Clearbit is excellent for enriching known contacts and identifying anonymous website visitors. The HubSpot integration is seamless if you are already in that ecosystem. SIE Data solves a different problem — finding new buyers through government filing signals before they visit your website.

Who SIE Data is best for

Teams that need intent signals, not just firmographic enrichment of known contacts

Sales teams in regulated industries that need government-verified data

Companies that want to discover new buyers, not just enrich existing leads

Organizations that need compliance-grade provenance beyond basic GDPR

Teams that outgrew enrichment and need a full signal-to-close pipeline

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