{"uid":"cap_rZOzdyOf4LgNJKXUcpMOd","slug":"eckari-uk-company-persons-with-significant-control-psc-lookup-8487a2dc","name":"Eckari UK Company Persons with Significant Control (PSC) Lookup","description":"An empty items list is never the same as \"no owner\": ownership_status and the filed PSC statements/exemptions explain why the register discloses none. Returns the persons with significant control (PSCs) for a UK company — the individuals, entities or legal persons that own or control it — each nature of control carrying the register code and its official text, with dates and public identification. The UK statutory beneficial-ownership (UBO) record. Use when: Who owns this UK company?","url":"https://api.eckari.com/v1/companies/uk/:companyNumber/owners?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object","required":["company_number"],"properties":{"company_number":{"type":"string","pattern":"^\\s*(?:[0-9]{1,8}|[A-Za-z][0-9]{7}|[A-Za-z]{2}[0-9]{6}|[A-Za-z]{2}[0-9]{5}[A-Za-z]|[A-Za-z]{2}[0-9]{4}[A-Za-z]{2})\\s*$","maxLength":10,"minLength":1,"description":"Companies House company number. Accepted shapes are the register's own — 1-8 digits (zero-padded to 8, e.g. 445790 → 00445790), one letter + 7 digits (R0000001), two letters + 6 digits (SC002180, NI000001, OC123456, OE000001), or the registered-society suffix forms (two letters + 5 digits + 1 letter; two letters + 4 digits + 2 letters). Case-insensitive; surrounding whitespace is ignored (which is why maxLength is 10); internal spaces and punctuation are not accepted. Any other value (for example PROBE) is rejected as INVALID_INPUT before payment and before any upstream call."}},"additionalProperties":false},"queryParams":{"type":"object","properties":{"limit":{"type":"integer","maximum":100,"minimum":1,"description":"Maximum PSCs to return per page (1-100). Default 10. Eckari reads up to three register pages of 100 entries to fill this after the ceased filter is applied; if the limit is still unmet, page.has_more is true and page.next_offset says where to resume."},"offset":{"type":"integer","maximum":10000,"minimum":0,"description":"Zero-based index into the register's own PSC list (not into the filtered result). Pass back page.next_offset from the previous response to page."},"include_ceased":{"type":"boolean","description":"Include PSCs whose control has ceased. Default false."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8UIDmsU5cmvX0-lPW_hNx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the registered persons with significant control (PSCs) — beneficial owners — of a UK company from the Companies House register, including nature of control, identification, and ownership status.","exampleAgentPrompt":"Who are the persons with significant control for UK company number 09876543? Show me up to 25 active PSCs with their nature of control and identification details.","exampleUseCases":[{"title":"KYC due diligence on a UK supplier","prompt":"I need to know who ultimately owns and controls UK company number 04153430 — can you pull the full list of persons with significant control from the Companies House register so I can complete our KYC checks?"},{"title":"Investigative research into shell company ownership","prompt":"Can you find all the beneficial owners on record for UK company 00445790, including any that have ceased control? I want to trace the full ownership history."},{"title":"Automated compliance screening for a contract","prompt":"Before we sign this contract, can you check who has significant control over the UK company with number 11234567 and tell me their nature of control so our compliance team can review it?"}],"resultDescription":"A paginated list of PSC records for the specified UK company, each including the person or entity name, nature(s) of control with register codes and official statutory text, start and (where applicable) cessation dates, public identification details, and the overall ownership_status field explaining why the register may disclose no entries (e.g. PSC statements or exemptions). Pagination metadata includes has_more and next_offset for subsequent pages.","failureModes":["Invalid or malformed company number (e.g. internal spaces or longer than 8 alphanumeric chars) returns INVALID_INPUT before any charge","Company not found on Companies House register returns a not-found error","Company exists but has no active PSCs and no exemptions — empty items list returned with ownership_status explaining why","Pagination offset exceeds available records — returns empty page with has_more false","Upstream Companies House API unavailable — returns a gateway or upstream error"],"whenToPreferThis":"Use this endpoint when you need the statutory UK beneficial ownership (UBO) record for a specific company — particularly for KYC, AML, due diligence, compliance screening, or investigative research. Prefer this over general web search when you need the official Companies House PSC register data including nature-of-control codes, statutory text, and ownership status explanations. It is the authoritative source for 'who controls this UK company' questions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T06:32:18.035Z","isFirstParty":false,"canonicalSlug":"eckari-uk-company-persons-with-significant-control-psc-lookup-8487a2dc"}