Coresignal

Coresignal is a public web data provider offering real-time, multi-source data on companies, employees, and job postings, powering decision-making for over 700 global organizations. Founded in 2016, the platform delivers ethically collected, AI-ready data through flexible APIs and bulk datasets, covering 75M+ company records, 859M+ employee profiles, and 448M+ job postings. Coresignal is a founding member of the Ethical Web Data Collection Initiative (EWDCI) and is fully GDPR and CCPA compliant. Its self-service dashboard lets users explore, query, and download data without talking to sales.

• Company Data — Access 75M+ AI-enriched company profiles with 500+ data fields including firmographics, funding, technographics, and web traffic; sign up and query via the Company API or download as a flat file.
• Employee Data — Retrieve 859M+ professional profiles covering work experience, education, skills, and salary projections; use the Employee API to filter and collect records in real time.
• Job Postings Data — Search 448M+ deduplicated active and historical job listings with 85+ fields; use the Jobs API to identify hiring trends, expansion signals, and candidate demand.
• Multi-Source Data — Get cleaned, deduplicated, and enriched records aggregated from 15+ web sources for a complete entity view; ideal for powering AI products and advanced analytics.
• Historical Headcount API — Request and retrieve historical headcount changes for specific companies, enabling workforce trend analysis and investment due diligence.
• AI-Powered B2B List Builder — Use natural language prompts in the self-service dashboard to generate, enrich, and export structured B2B lists of up to 10,000 records in JSONL format.
• Flexible Delivery — Receive data via direct download, cloud upload, or API in JSON, JSONL, CSV, or Parquet formats; daily, weekly, or monthly delivery schedules available.
• Elasticsearch Query DSL — Build precise, complex search queries using Elasticsearch syntax directly in the self-service platform or via API.
• Webhooks — Available on Premium plans, Employee API webhooks enable proactive, event-driven data delivery for real-time pipeline updates.
• Data Transparency & Compliance — All data is collected from publicly available sources; opt-out mechanisms, GDPR/CCPA alignment, and EWDCI certification ensure responsible data practices.