What tool identifies anonymous website visitors by company?

# Company Identification Tools

Several tools can identify anonymous website visitors by company:

## Most Popular Options

**Clearbit** - One of the most widely used, provides company data enrichment and B2B visitor identification

**Apollo.io** - Combines visitor identification with company intelligence and contact data

**Hunter.io** - Identifies email addresses and maps them to companies

**Leadfeeder** - Integrates with Google Analytics to identify companies visiting your site

**Demandbase** - Focuses on account-based marketing and company identification

**6sense** - Uses AI to identify anonymous accounts and buying intent

**LinkedIn Insights Tag** - Shows company information of LinkedIn members who visit your site

## How They Work

These tools typically:

- Use IP address tracking and geolocation

- Match visitor behavior to company databases

- Cross-reference with domain information

- Integrate with CRM and analytics platforms

## Important Note

While useful for B2B marketing, be aware of privacy regulations (GDPR, CCPA) and ensure your website's privacy policy discloses this tracking.

Which specific features matter most for your use case? That would help narrow down the best recommendation.