PSC API UK

Retrieve UK persons with significant control for verification and monitoring workflows

Use Entylink to pull UK PSC data, inspect natures of control, and monitor ownership-related changes in Companies House-backed workflows for KYB, compliance, and fraud operations.

Get API access Read the PSC docs

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Key metrics

Surface

PSC records

Companies House-backed control data

Workflow

Verify and monitor

Useful beyond point-in-time checks

Audience

KYB, fraud, compliance

Operational ownership review

Who this is for

Built for engineering and operational teams

Compliance analysts and engineers building ownership checksFraud teams reviewing control signals during onboardingProduct teams that need PSC data available in application workflows

◈Inspect active PSCs alongside company and officer data during review

◈Track ownership-related changes after approval

◈Map PSC records into business verification and KYB workflows

What you get

What the API gives you

Structured PSC records in a single API call

Each PSC record includes name, kind, notified date, and natures of control — including percentage ownership and voting rights bands. Retrieve all active PSCs for a company with one authenticated GET request.

The first question in most UK KYB workflows

PSC data identifies who holds 25% or more ownership or voting rights, or who otherwise exercises significant control. That question sits at the centre of regulated onboarding, enhanced due diligence, and fraud review decisions.

UK register coverage — not a global UBO graph

Entylink returns PSC data exactly as registered at Companies House for UK-incorporated entities. It does not provide multi-jurisdiction UBO resolution or cross-border ownership chain analysis.

Implementation

A working example in minutes

Real endpoints, real request shapes — copy into your project and be live in minutes.

PSC payloadGET /v1/company/{number}/psc

API example

{
  "items": [
    {
      "name": "Mr Nikolay Storonsky",
      "kind": "individual-person-with-significant-control",
      "natures_of_control": [
        "ownership-of-shares-25-to-50-percent"
      ]
    }
  ]
}

PSC data is most useful when it is consumed alongside company, officer, and filing context.

Why teams switch

Why teams choose Entylink

They need PSC data in the same API workflow as companies, officers, and filings.

They want a developer-friendly way to use control data inside products.

They need monitoring support after the first ownership review.

FAQ

Frequently asked questions

Is PSC data the same as a full ultimate beneficial ownership graph?

No. This page is about UK PSC data and beneficial ownership-adjacent control information from the register. That is valuable, but it should be described precisely.

What are natures of control in a PSC record?

Natures of control describe how a PSC holds influence — through share ownership bands (25–50%, 50–75%, 75–100%), voting rights bands, or rights to appoint or remove directors. The Companies House register uses standardised categories for all of these.

Can PSC data be monitored over time?

Yes. That is part of the value proposition. Initial verification is useful, but ongoing awareness of change is often what makes the workflow operationally meaningful.

Where to go next

Business verification API UK →Company monitoring API →Onboarding lookup tutorial →API docs →

Get started

UK business verification.
Without the build time.

Self-serve access. Public pricing. Make your first API call in minutes.

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