Category
Enrichment - Talent API
Availability
HQ
New York, United States
Pricing
From $49/mo
Free tier
Yes
Best for
Also in
Capabilities
What is Core Signal?
Core Signal is an API-first B2B data provider that delivers company, employee, and job-posting data from public web sources at dataset scale. It is not a tool a recruiter logs into; it is the data layer teams build on when they need to power a custom enrichment pipeline, a signal-tracking workflow, or an AI sourcing agent with continuously refreshed profile and firmographic data. Note: Core Signal (coresignal.com) is a distinct company from CodeSignal, the technical assessment platform.
What are Core Signal's key features?
Company, employee, and job-posting data via API or bulk datasets: pull firmographics, headcount, career history, and live job postings as a base layer you integrate, priced for volume rather than per-record lookups.
Hundreds of fields per record for richer matching: org structure, headcount history, skills, and career trajectory (300+ employee fields, 500+ company fields per Core Signal) give a matching engine or candidate score more to work with than surface attributes.
Continuously refreshed from public sources: records update on an ongoing cycle, so the profiles and company data your pipeline pulls reflect current roles and hiring activity rather than a stale export.
Job-posting data for hiring-signal detection: track active postings across target companies to flag hiring windows for BD account targeting or new requisitions to source against.
Delivered how your stack needs it: REST APIs for Employee, Company, and Jobs data, plus bulk CSV/JSON exports and scheduled file delivery for pipelines that consume data in batches.
How do recruiting teams use Core Signal?
- An agency building a proprietary candidate and account database integrates Core Signal's API to bulk-enrich records with structured career history and firmographics at a scale a per-seat sourcing tool cannot match.
- A technical operator wires Core Signal into a Clay or n8n workflow as a continuous data source, feeding enrichment and signal logic rather than a UI anyone logs into.
- An in-house talent-intelligence team uses Core Signal's workforce data to track competitor hiring patterns and skill-demand shifts over time, informing sourcing strategy before a requisition opens.
- A build monitors job-change and job-posting signals from Core Signal's dataset to trigger BD outreach timing on accounts entering a hiring window.
Who is Core Signal best for?
- Engineering teams building an enrichment pipeline, sourcing tool, or signal workflow that needs high-volume API access to company and employee data as a base layer.
- Agencies or in-house teams running their own waterfall enrichment who want a broad depth provider behind a real-time primary source.
- Builds where historical career-path and headcount patterns matter as much as a current snapshot, since coverage runs back to 2016 per Core Signal.
What are Core Signal's pros and cons?
Pros
- Broad global coverage of company, employee, and job-posting data (890M+ employee profiles, 75M+ company records per Core Signal).
- Flexible delivery: REST API, bulk CSV/JSON, and scheduled file push to fit different pipeline shapes.
- Volume-oriented pricing with a free trial, so a build team can test coverage before committing.
- Sources only publicly available business data; GDPR and CCPA compliant per Core Signal's data-compliance page.
Cons
- Not a recruiter-facing UI; it is a data source that requires engineering effort to turn into a workflow.
- Search and Collect credits can consume quickly on large jobs, so per-record cost needs planning at volume.
- Data completeness and freshness vary by record and source.
What are people saying about Core Signal?
Coresignal is a B2B and workforce-data API and does not currently maintain an active G2 or Capterra product profile, so no aggregate score is shown. Independent reviews (e.g. on Datarade) are positive but few, reflecting its API-first, developer-focused user base.
Consolidated from verified web sources · Updated June 21, 2026
How does Core Signal compare to alternatives?
| Feature | Core Signal | CrustData | Fiber.ai |
|---|---|---|---|
| Category | Enrichment - Talent API | Enrichment - Talent API | Enrichment - Talent API |
| AI-first | |||
| API | |||
| MCP | |||
| GDPR | |||
| Best for | Agency, In-House | Agency, In-House | Agency, In-House |
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Frequently asked questions about Core Signal
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