Data Sources | Prosigna
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Data sources

Where Prosigna gets its data

Every signal in Prosigna originates from a public or licensed source. This page lists each source category, what we use it for, and how often we monitor it.

UK statutory registers

Companies House
Updated daily
The UK's official register of companies. We monitor director appointments and resignations, persons with significant control (PSC) filings, statutory dividend declarations, profit and net asset threshold events, and charge satisfactions.
HM Land Registry
Updated monthly
The official register of property ownership in England and Wales. We use Land Registry data to identify high-value property transactions that may indicate liquidity events.
The London Gazette
Updated daily
The UK's official public record. We monitor it for corporate notices, insolvency events, and other formal announcements relevant to wealth events.
Probate Registry
Updated weekly
Public records of probate grants. We use probate data to identify executors and beneficiaries of significant estates.

US regulatory filings

SEC EDGAR
Updated daily
The US Securities and Exchange Commission's electronic filing system. We monitor Form 4 (insider transactions), Schedule 13D and 13G (beneficial ownership), Form 3 (initial ownership), S-1 (IPO registration), and DEF 14A (proxy executive compensation).

Proprietary analysis

In addition to direct ingestion of public registers, we conduct our own structured analysis of fund lifecycle behaviour, sector M&A activity, and private equity manager behaviour. This analysis is derived from a combination of public filings and licensed industry datasets, and is used to identify anticipated wealth events — situations where the conditions for a future liquidity event are present and statistically likely.

Contact enrichment

Where we surface a named individual, we may enrich the brief with business-context contact information (work email, work phone, LinkedIn URL) using third-party enrichment services. These services themselves rely on publicly available business information.

We do not source personal (non-work) contact details, government identifiers, or any special category data.

Press and publicly available web content

Where relevant, we incorporate context from press articles and public web content — but only as additional context for an event we have already identified through one of the structured sources above. We do not generate prospect briefs from press content alone.

What we don't use

  • Scraped data from closed platforms
  • Purchased consumer marketing lists
  • Data of unknown provenance
  • Special category data under GDPR Article 9
Want more detail?

Compliance officers and DPOs evaluating Prosigna can request our full data source map, including pipeline frequencies, retention windows, and enrichment provider list, under NDA.

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