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Diffbot

Knowledge graph and web extraction APIs

Diffbot builds a knowledge graph of web entities and sells APIs that extract structured data from web pages. Its Knowledge Graph covers organizations, people and articles.

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Apollo.io

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B2B contact and company database with outreach tools

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Clay

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Enrichment workspace that joins many data providers

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Cognism

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B2B data focused on mobile numbers and Europe

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Coresignal

People & company data

Company, employee and job data from public sources

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Crunchbase

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Database of companies, funding and investors

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Lusha

People & company data

Contact and company data with a browser extension

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