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Secretary of State Business Search

Business Entity Search and KYB Verification

Access Secretary of State records, from registrations and documents to filings, in a single platform. Verify businesses, check ownership, and stay compliant with trusted business data.

< 3s

API Response Time

10,000+

Businesses Verified

50

States Database Coverage

Don’t settle for SOS Data alone

Go deeper than basic Secretary of State records with EIN verification, UBO checks, entity verification, watchlist screenings, bankruptcies, UCC filings, and more — all in one unified KYB workflow with Signzy

Entity Verification

Entity Verification

Ensure your business partners are legitimate, reducing fraud risk

Watchlists Screenings

Watchlists Screenings

Prevent financial crimes by validation with reliable global sources

Real-time Updates

Real-time Updates

Stay informed with real-time compliance status updates

Business Website Verification

Business Website Verification

Verify your partners' websites to confirm authenticity

Social Presence

Social Presence

Gauge a business's credibility through its social media presence

Liens and UCC Filing

Liens and UCC Filing

Identify any existing secured debts or asset claims

Bankruptcies

Bankruptcies

Check for bankruptcies to assess financial stability

Address Classification

Address Classification

Classify business addresses to confirm operational legitimacy

Explore Signzy’s KYB Suite

Verify EINs, UBOs, and SOS registry data with Signzy

Explore the end-to-end verification stack trust by 1,000 businesses.

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