About 483 Signal

483 Signal is an FDA regulatory intelligence platform that aggregates, classifies, and connects public FDA enforcement data to help professionals understand compliance risk.

What We Do

We aggregate publicly available FDA Form 483, Warning Letter, and product recall, then structure that data into a searchable, classified database with company regulatory profiles.

Our platform provides:

  • GMP classification — Every document tagged by GMP issue category (data integrity, process validation, aseptic processing, etc.)
  • Regulatory timelines — Confidence-scored links between 483s, Warning Letters, and recalls for the same facility
  • Company profiles — Aggregated regulatory histories with GMP breakdown, timeline, and peer comparison
  • Facility classification — Documents tagged by facility type (pharmaceutical, biologics, device, CDMO, etc.)

Data Sources

All data on 483 Signal comes from publicly available FDA sources:

  • FDA Inspection Citations Database (Form 483 observations)
  • FDA Warning Letters (published on FDA.gov)
  • openFDA Enforcement Reports API (product recalls)
  • iRES (FDA Inspection & Registration data)

All classifications, risk estimates, and regulatory timeline links are generated algorithmically and may not capture the full compliance context.

Who This Is For

  • QA Managers — Track inspection trends, monitor supplier compliance, prepare for audits
  • Due Diligence Analysts — Assess regulatory risk for acquisitions and investments
  • Procurement Teams — Evaluate CDMO and supplier enforcement histories
  • Business Development — Identify companies that need compliance services

Independence

483 Signal has no consulting services, no vendor partnerships, and no financial interest in compliance software or training programs. Revenue comes from subscriptions and data services only.

Contact

For questions, data corrections, or partnership inquiries: contact@483signal.com

Disclaimer

483 Signal aggregates and classifies publicly available FDA enforcement data. Company profiles, classifications, and regulatory timeline links are generated algorithmically and do not constitute official FDA assessments. This platform does not provide legal or regulatory advice. Companies may have taken corrective actions not yet reflected in public records.