In the wild.
70+ examples. One primitive. Across industries and data flows.
Polymonial does a lot. These use case examples show how — across the flows your business already runs (a CSV, an API, an EDI feed, a healthcare record exchange etc) and the problems it already faces (proving compliance, sharing data with partners, migrating off legacy crypto etc). Filter by your sector, the data flow you have today, the theme you care about, or the problem you’re trying to solve.
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EXA1
Finance
Tax Compliance
Prove your payroll meets every tax-authority rule — without sending a single employee record.
EXA3
Finance
Pay Gap Reporting
Prove your pay gap meets the threshold — without disclosing a single salary.
EXA6
Finance
Sanctions Screening
Screen your customers against sanctions lists — neither side sees the other's data.
EXA8
Finance
KYC Once, Reuse Many
Onboard once. Prove your identity to many institutions. Never re-upload a document.
EXA14
PublicSector
Sovereign AI Inference
Query foundation models hosted outside your jurisdiction without the prompt or response leaving home — Schrems II / FedRAMP High / DoD IL5 / EU AI Act Article 16 conformance via cryptography rather than via dedicated sovereign clouds.
EXA16
Universal
Private LLM Inference
Use the best LLM in the market — without exposing your prompts to the provider.
EXA20
Universal
Age Verification
Prove this user is over 18 — no name, no date of birth, no document upload.
EXA22
PublicSector
National ID Without Surveillance
A national identity scheme citizens trust — usable everywhere, observable nowhere.
EXA34
Finance
Crypto Tax
Report capital gains to your tax authority — without exposing your full wallet history.
EXA37
Universal
API Schema Wrapping
Wrap your existing OpenAPI in cryptographic policy enforcement — same callers, same endpoints, less leakage.
EXA38
Universal
Sealed File Drops
SFTP CSV file drops still leak plaintext PII daily — Polymonial seals them at the row level so the recipient queries instead of reads.
EXA40
Healthcare
FHIR Selective Disclosure
When healthcare systems exchange a Patient resource today, the receiver gets the full record — Polymonial wraps each FHIR field so they get only what their role requires.
EXA43
Universal
Privacy-Preserving Webhooks
SaaS webhooks deliver full event payloads to your endpoint — Polymonial wraps the payload so you unseal only the fields you actually need.
EXA47
Universal
Customer-to-Customer Sharing
Two of your SaaS customers want to share data — today's API integrations grant full read access. Polymonial gives field-level partnerships.
EXA48
Finance
Pension Contribution Privacy
Monthly payroll-to-pension files leak the salary book — Polymonial wraps each row so the provider verifies math without seeing salaries.
EXA50
Universal
Email Attachment Sealing
The biggest data leak in your organisation isn't a hacker — it's that email you sent yesterday with the customer spreadsheet attached.
EXA52
Universal
GDPR Subject Access Response
The Subject Access Request bundle that doesn't expose the subject — assemble from sealed slices, ship as a sealed package.
EXA54
Finance
Third-Party Data Feed Queries
Pay for the market-data, credit-reference, or weather feed without giving the vendor a free intelligence feed on your strategy.
EXA55
Universal
Customer Support Ticket Privacy
Customers paste credentials into support tickets — Polymonial detects and seals before tier-1 sees them.
EXA57
Universal
Mobile App Telemetry
Your app uploads everything the user touches — Polymonial seals events so the backend gets analytics, not behavioural fingerprints.
EXA60
Universal
HR Onboarding Fan-Out
One new-hire form fans out to 7 systems — Polymonial gives each system only the fields it needs.
EXA61
Universal
Cross-Border Data Transfer
Schrems II says assume hostile foreign surveillance — Polymonial says the surveiller finds nothing usable.
EXA65
Insurance
Insurance Claims
Settle a claim in the browser — without the policy, the diagnosis or the loss report ever leaving the claimant.
EXA66
Finance
Loan Decisioning
Prove you qualify for the loan — without handing the lender your entire financial life.
EXA70
Healthcare
Confidential Diagnostics
Run the diagnostic model in the browser — the patient scan never leaves the device.
EXA72
Telecoms
Proven Message Rail
Prove every message is authentic and unaltered — without the rail operator ever reading it.