SignalOther/ 30 July 2026/ 1 min read
The Persons of Significant Control (PSC) register at Companies House discloses the ultimate beneficial owners of UK limited companies. For B2B sales targeting UK private companies, a PSC check is a 30-second sanity check that surfaces ownership concentration, recent ownership changes, and corporate-group structure. Most UK SaaS sales teams don't run it; the ones that do catch deal-blocking signals weeks before they would have surfaced via procurement.
The Persons of Significant Control (PSC) register at Companies House discloses the ultimate beneficial owners of UK limited companies, introduced under the Companies Act 2006 (PSC requirements added 2016, expanded 2024-2026). Any person controlling 25 percent or more of shares, voting rights, or appointment-of-directors must be disclosed.
For B2B sales targeting UK private companies, a PSC check is a 30-second sanity check that surfaces three structural signals:
Ownership concentration. A single PSC controlling 75 percent or more typically indicates founder-led decision-making or PE-owned structure. Buying-centre dynamics differ materially in each case; knowing which is which shapes early discovery.
Recent ownership changes. PSC changes within the last 12 months often signal recent acquisition, succession, or restructuring. Each signals different deal dynamics: acquired company in integration phase rarely makes new vendor commitments; recently-restructured company may have budget freezes or accelerations.
Corporate-group structure. PSCs that are themselves limited companies (rather than individuals) reveal corporate-group structure. Selling into a subsidiary of a larger group often means contracts run through group procurement; the discovery question 'how do you procure relative to your parent' becomes important.
The check costs nothing (free Companies House search) and takes 30 seconds. Most UK SaaS sales teams don't run it; the ones that do catch deal-blocking signals weeks before they would have surfaced via the buyer's procurement team.
For sales operations leaders evaluating prospecting tooling, the PSC integration is increasingly available as a standard data field through Cognism, ZoomInfo, and Apollo. Where it isn't surfaced automatically, the manual check on top-tier prospects is a high-leverage discipline.
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