US business identity resolution

Turn messy vendor records into verified businesses.

Send a business name, address, or domain. Get the canonical legal entity, state registrations, public EIN evidence, confidence, and the sources behind every answer.

Request a free 100-row audit See the response

Pilot is free · Expected self-serve plans from $99/month

01 Source-level proof 02 Calibrated confidence 03 Safe “unresolved” results

POST /v1/resolve

// Input: "Acme Logistics", Austin TX
{
  "status": "resolved",
  "confidence": 0.97,
  "entity": {
    "legal_name": "ACME LOGISTICS LLC",
    "state": "TX",
    "standing": "active",
    "state_id": "080…",
    "public_ein_evidence": "available"
  },
  "evidence": [
    { "source": "TX SOS", "observed_at": "2026-08-27" }
  ]
}

Messy inputDBAs, abbreviations, typos, stale addresses

→

EntityAPINormalize, retrieve, resolve, explain

→

Clean outputCanonical IDs your systems can trust

The expensive part is ambiguity

Raw registry data is cheap.
Resolving the right company is not.

Fifty state databases can tell you what exists. They rarely tell you which record matches the vendor your customer actually typed.

Canonical resolution

Match legal names, DBAs, addresses, domains, and known IDs across fragmented public sources.

Explainable confidence

See why a match scored highly, which fields conflict, and when the safest answer is unresolved.

Evidence, not assertions

Every returned field includes its source, observation date, and verification type.

Changes over time

Monitor standing, legal names, addresses, agents, and filings without rebuilding state connectors.

Built around the workflow

Where bad entity data becomes expensive

Vendor onboarding

Confirm the business your customer intended before approval or payout.

Vendor-master cleanup

Deduplicate and enrich existing supplier records in a batch.

W-9 and 1099 readiness

Resolve names and public EIN evidence before regulated matching.

Portfolio monitoring

Know when a business changes standing, name, address, or agent.

Founding design partner program

Give us 100 records that waste your team’s time.

We’ll evaluate the workflow, resolve a representative sample with source evidence, and show where automation would reduce manual review.

No production integration required
No SSNs or personal taxpayer data
Five pilot teams; software companies prioritized

A good fit: You operate software that onboards, pays, verifies, or monitors US businesses—and process at least 100 records per month.

Straight answers

What this is—and is not

Is this an IRS TIN Matching service?

No. Public-data resolution and IRS TIN Matching are different verification types. EntityAPI will label them separately and will never imply an IRS match when only public evidence exists.

Are EINs available for every US business?

No. There is no universal public IRS EIN directory for ordinary for-profit companies. We return public EIN evidence where authoritative sources support it and explicitly abstain where they do not.

Why not query Secretary of State sites directly?

State registries are useful but fragmented, and they generally return state filing IDs rather than federal EINs. The product value is resolving the correct entity across sources and explaining the result.

Who is the pilot for?

Vertical SaaS, marketplaces, accounting/payroll software, AP automation, and other products that process recurring US business records.