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TrustVerify logoTrustVerify

Identity and business verification for UK marketplaces. ID document and selfie checks, UK company and director checks, and a recorded decision on every check.

020 4542 7323

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  • Identity (IDV/KYC)
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  • Seller verification (KYS)
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  • Escrow (secure transactions)

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© 2026 Magnificentech Solutions Ltd (Company No. 16321180), trading as TrustVerify. Registered in England & Wales. All rights reserved. · trustverify.co.uk

TrustVerify, Willow Farm, Choppington, Northumberland NE62 5EU · 020 4542 7323

Solution

Seller verification (KYS) for UK marketplaces

Seller verification, or Know Your Seller (KYS), means checking that a seller is a genuine individual or a registered business before they can list or get paid. TrustVerify combines identity checks, UK company checks and AML screening so your team can approve, refuse or review each seller with a clear record of why.

Book a callSee plans

What seller verification covers

  • ✓ Individual sellers: ID document and selfie checks, and we cover liveness checks. Proof-of-address documents are collected for your team to review.
  • ✓ Business sellers: a built-in Companies House registry check for UK companies, plus PSC/UBO and LEI checks.
  • ✓ Screening: sanctions, PEP and adverse media checks, with re-screening after onboarding.
  • ✓ Decisions: a review queue with case escalation and review alerts, plus a trust score.

Why marketplaces check sellers

Fake or risky sellers cost buyers money and cost platforms trust. Checking at sign-up stops many problems before the first listing, and re-screening picks up changes later.

How it works

  1. The seller signs up and gives their details.
  2. TrustVerify runs the checks that fit the seller type.
  3. Clear results come back straight away; anything that needs a person goes to review.
  4. Every decision is recorded.

For higher-value trades

If buyers and sellers trade high-value items, we offer escrow through Escrow.com, available on request.

Integrations

Connect through the REST API and webhooks, a WooCommerce plugin downloaded from the Integrations page in your dashboard, or a Shopify app.

Frequently asked questions

What is KYS?

Know Your Seller: checking a seller's identity, business and risk before they trade on your platform.

Do I need KYC or KYB for sellers?

KYC for individuals, KYB for businesses. Many marketplaces need both. Business checks cover UK companies.

Can sellers be re-checked later?

Yes. Ongoing monitoring re-screens sellers against sanctions, PEP and adverse media.

Do you check proof of address?

We collect proof-of-address documents so your team can review them.

How do I get started?

Book a call and we will walk through your seller flow.

Related

How to choose KYC softwareKYC software UKKYBUK registry checksAML screeningOngoing monitoringReview queues and trust scoreEscrow for high-value tradesIntegrationsMarketplaces