Registrum pricing: company hierarchy API
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GET / v1/ company/ {company_ number}/ psc/ chain Registrum's only call for this API- Business verification API
- People search API
- Company enrichment API
POST /v1/ enrich - Company enrichment API
GET /v1/ company/ {company_ number} - Company enrichment API
POST /v1/ batch - Company enrichment API
GET /v1/ company/ {company_ number}/ bundle - Company hierarchy API
About this item
- Freshness. We don't know how fresh this plan's data is.
- 2 of the 3 key fields we check. Company, Parent.
- A monthly subscription. You pay £49 a month for 4,000 credits, enough for 4,000 calls. Calls stop once your credits run out.
- One call. You send
company_tonumber GET /. You can also sendv1/ company/ {company_ number}/ psc/ chain max_. The call returns the company's parents.depth - Anyone can get it. Keep data: no limit. Use data: with conditions.
Registrum: company hierarchy API alternatives
Registrum alternatives: other company hierarchy API providers by price
We list other providers' plans closest to this plan in price per 1,000 companies.
| This planRegistrum, £49 monthly | Firmbase, €35 monthly | Skrapp, $349 monthly, Enterprise 50K, GET /api/v3/companies/enrich | Katalis, £299 monthly | Apollo, $588 yearly, Basic, GET /organizations/enrich | |
|---|---|---|---|---|---|
| $ per 1,000 companies | $16.335 | $13.129 | $13.96 | $16.002 | $19.60 |
| Completeness | 67% | 33% | 33% | 67% | 100% |
| Billing | monthly | monthly | monthly | monthly | yearly |
| Pay | £49 | €35 | $349 | £299 | $588 |
| Enough for | 4,000 calls a month | 100 calls a day | 25,000 calls a month | 25,000 calls a month | 30,000 calls a year |
| Freshness | unknown | 24 hours | stored | unknown | 1 month |
| Who can get it | anyone | anyone, a payment card is entered at the start of the 7-day trial | anyone 18 or over | anyone with a verified email address and one further proof of being a real person: a verified mobile number or, where it can't text you, a bank-checked card (nothing charged) | business use only, not as a consumer, users of legal age |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-06.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Company
- Parent
- Family tree, not in the answer
| $ per 1,000 companies | $16.335 |
|---|---|
| Per | call |
| Billing | monthly |
| $ a month | $65.34 |
| Aggregators | none |
|---|
| Also pays for | Create a webhook subscription: 25 companies watched · from the same budget: Search for companies by name · Get enriched company profile · Whole company page in one request · Get company directors with their other appointments · Map connected companies via shared directors · Get structured financial data from filed accounts · Get persons with significant control · Bulk enrich up to 50 companies in one request · Submit a batch of up to 500 companies for async enrichment · Get ECCTA identity verification compliance snapshot · Get a full Know Your Business (KYB) report |
|---|
| Units cap | hard |
|---|
| Their pitch | Resolve the PSC ownership chain for a company, traversing corporate entity PSCs recursively. |
|---|
| Countries | United Kingdom |
|---|---|
| Full family tree | no |
| Keep data | no limit |
| Use data | You may use the API for any lawful purpose. You may not: attempt to circumvent rate limits, resell raw API responses without transformation, use the service to build a competing API product, or use the data in a way that violates the Open Government Licence v3.0. |
| Pay | £49 |
|---|---|
| You get | 4,000 credits a month |
| Enough for | 4,000 calls a month |
| Per day | 400 |
|---|---|
| Per second | 1.67 |
| Batch | 1 |
| Answer | in the call |
|---|
| You send | company_number. Optional: max_depth |
|---|---|
| Method | GET |
| Path | /v1/company/{company_number}/psc/chain |
| Plan | Pro |
|---|---|
| Who can get it | anyone |
The 28 fields the plan's answer can hold
company number, company name, owner type, owner name, owner company number, nature of control, nature of control decoded, notified on, nationality, country of residence, identity verified, identity verified on, identity verification status, identity verification deadline, registry number, registry name, registered at Companies House, country registered, legal authority, legal form, place registered, registration number, chain end reason, owners of owner, depth used, companies resolved, unresolved branches, max depth reached