Beneficial Ownership Verification API — honest about what counts as UBO

Beneficial ownership means who actually owns or controls a company, not who is listed as a director. Prometiam's Risk API returns real beneficial-ownership data for exactly one country: the United Kingdom, through the Persons with Significant Control (PSC) register, returned with the company profile and searchable by name. For Spain, France and Norway the same endpoints return officers and directors — a real signal, but not beneficial ownership. Ireland and Poland are company-level, with no officer or PSC data at all.

The pattern

GET /people/search?country=GB&name= finds candidate PSC and officer records by name. GET /companies/{id}?country=GB returns the full profile with every officer and PSC appointment in its contacts array. For an entity that holds a Legal Entity Identifier, GET /lei/search and GET /lei/{lei}/relationships add the GLEIF Level-2 direct and ultimate parent — a reported corporate-group link, not an ownership percentage. POST /sanctions/screen (beta) then screens every name collected — PSCs, officers, and the LEI parent — in one batch call.

What this API does not hold

Spain's Registro Central de Titularidades Reales, France's Registre des bénéficiaires effectifs, Ireland's RBO, Poland's CRBR, and Norway's register of beneficial owners are not queryable through this API, at any tier. Teams combine what the API does return — identity, status, officers, UK PSC, LEI parents, and sanctions screening — with those official registers or a document request. AMLR (Regulation (EU) 2024/1624, from 10 July 2027) sets the beneficial-ownership bar at 25% of ownership or voting rights, 15% in higher-risk sectors; this page is not legal advice.

Company profile and LEI calls run on every tier including Free. Full production access to /people/search needs the Starter tier; full /sanctions/screen access needs the Professional tier.

Read more · Get a free API key

Frequently asked questions

Does Prometiam have a beneficial-ownership register?
Only for the United Kingdom. The Persons with Significant Control (PSC) register is returned with the company profile (GET /companies/{id}?country=GB) and searchable by name (GET /people/search?country=GB). Spain, France and Norway return officers and directors through the same endpoints — a real signal, but not beneficial ownership. Ireland and Poland are company-level, with no officer or PSC data.
How do I check beneficial ownership for a Spanish, French, Irish, Polish or Norwegian company?
Combine what the API returns — identity, status, officers where available, LEI parents, and sanctions screening on the names you collect — with the country's own register or a document request: Spain's Registro Central de Titularidades Reales, France's Registre des bénéficiaires effectifs, Ireland's RBO, Poland's CRBR, or Norway's register of beneficial owners. None of these five registers is queryable through this API.
What does the GLEIF LEI parent chain add?
For an entity that holds a Legal Entity Identifier and has reported the relationship to GLEIF, GET /lei/{lei}/relationships returns its direct and ultimate parent and up to 15 direct children. That is a reported corporate-group link, not an ownership percentage or a natural-person beneficial owner, and many entities report no relationship at all.
What beneficial-ownership threshold does AMLR use?
Regulation (EU) 2024/1624 (AMLR), which applies across the EU from 10 July 2027, sets the beneficial-ownership bar at 25% of ownership, voting rights or other interest, with the Commission able to lower it to 15% in higher-risk sectors. See the AMLR compliance timeline. This is not legal advice.
What does a UK beneficial-ownership check cost?
Company profile and LEI lookups run on every tier including Free. /people/search needs the people scope from Starter (€9.99/month); full /sanctions/screen access needs the sanctions scope from Professional (€29.99/month), which also includes export-control screening. A Free key trials /people/search 25 times a month; the batch sanctions call needs Professional outright.