CompanyStack pricing: company hierarchy API
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- FreeFree$0.00 per 1,000
- £29 monthlyStarter$0.129 per 1,000
- £99 monthly, BusinessBusiness$0.044 per 1,000
- £288 yearlyStarter (yearly)$0.105 per 1,000
- £984 yearly, Business (yearly)Business (yearly)$0.036 per 1,000
- Contact us, EnterpriseEnterprise
GET / one of CompanyStack's 2 calls for this APIGET /Free$0.00 per 1,000company/ {number}/ group-structure GET /£99 monthly, Business$0.044 per 1,000intelligence/ group/ {number}
About this item
- Stored. You get hierarchies from CompanyStack's database. CompanyStack doesn't say how old the hierarchies are.
- 1 of the 3 fields on our checklist. Company.
- Nothing to pay. You get 1,000 requests a day. Calls stop once your requests run out.
- One call. You send
numbertoGET /. The call returns the company's parents and family tree.company/ {number}/ group-structure - Who can get it: with conditions. Keep data: no limit. Use data: with conditions.
CompanyStack: company hierarchy API alternatives
CompanyStack alternatives: other company hierarchy API providers by price
The table starts with CompanyStack's cheapest paid plan. Next come plans from other providers with the price per 1,000 companies closest to CompanyStack's. Each plan in the table gives stored data.
| CompanyStack, £984 yearly, Business (yearly), GET /company/{number}/group-structure | Firmainfo, contact us, Enterprise, GET /api/v1/companies/{company_id}/subsidiaries | DiscoLike, $15,350 yearly | Skrapp, $13,488 yearly, Enterprise 500K, POST /api/v3/companies/bulk-enrich | Canonical, top-up, Extra credits (Pro) | |
|---|---|---|---|---|---|
| $ per 1,000 companies | $0.036 | $0.505 | $1.20 | $4.496 | $8.00 |
| Completeness | 33% | 67% | 67% | 33% | 67% |
| Billing | yearly | contact | yearly | yearly | pay first |
| Pay | £984 | kr15,000 | $15,350 | $13,488 | any amount |
| Enough for | 100,000 calls a day | 3,000,000 calls a month | 1,066,000 results a month | 250,000 results a month | as many as you pay for |
| Freshness | stored | stored | stored | stored | stored |
| Who can get it | businesses, sole traders, charities, public bodies and other organisations, for use in their trade, business or profession (no consumers), aged 18 or over | anyone who applies for API access | anyone 18 or over with a business email address (Gmail, Yahoo and Outlook addresses are refused), for their internal business purpose, the only plan that lets you embed the data in a customer-facing product | anyone 18 or over | subscribers of the Pro plan |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Company
- Parent, not in the answer
- Family tree, not in the answer
| $ per 1,000 companies | $0.00 |
|---|---|
| Per | call |
| Billing | free |
| Aggregators | none |
|---|
| Also pays for | Filed accounts, year by year · Company health score · from the same budget: Search companies · Autocomplete company names · Get company by number · Newly incorporated companies · Search industries by keyword · Get all SIC codes with company counts · One area's business figures |
|---|
| Units cap | hard |
|---|
| $ per 1,000 calls that find nothing | $0.00 |
|---|
| Their pitch | Who controls a company and which companies it controls, from the Companies House register of persons with significant control (PSC), as a graph. |
|---|
| Freshness | stored |
|---|---|
| Countries | United Kingdom |
| Full family tree | no |
| Keep data | no limit |
| Use data | "17.2 While you have an account, we give you a non-exclusive, non-transferable licence to use the Service and its outputs (including API responses, exports and PDF reports) for your internal business purposes. You may keep outputs in your own business records, including after your account ends, and share them with your professional advisers, auditors and regulators." "17.3 You may include limited extracts of our outputs in your own products or publications, provided you credit "CompanyStack" and the original source (for example "Source: Companies House via CompanyStack"). You must not redistribute, resell or publish our data in bulk, or build a competing database from it, without our written agreement." "17.5 You must not present our outputs as a credit rating, as a credit reference about an individual, or as checked, verified, certified or endorsed by us or by Companies House beyond what their labels say." "14.4 If you share or publish our data as clauses 15B and 17 allow, you must keep the attribution statement each source's licence requires (for Companies House data: "Contains public sector information licensed under the Open Government Licence v3.0.") and must not suggest that Companies House or any other source endorses you, us or your use of the data." |
| Pay | £0 |
|---|---|
| You get | 1,000 requests a day |
| Enough for | 1,000 calls a day |
| Per day | 1,000 |
|---|---|
| Per second | 0.5 (30 a minute) |
| Batch | 1 |
| Answer | in the call |
|---|
| You send | number |
|---|---|
| Method | GET |
| Path | /company/{number}/group-structure |
| Plan | Free |
|---|---|
| Who can get it | businesses, sole traders, charities, public bodies and other organisations, for use in their trade, business or profession (no consumers), aged 18 or over |
The 79 fields the plan's answer can hold
title, company number, company name, root ID, level, has group, has chart, kind, as at, as shown, source, matching, bands note, completeness note, node ID, node type, node level, node root, node name, node company number, node link, node status, node status label, node born, node registered, node detail, node note, node stop, node other owners, node count, edge ID, edge from, edge to, edge kind, edge natures of control, edge natures text, edge label, edge notified on, edge in cycle, levels above, levels below, companies above, companies below, individuals, other owners, owners, former owners, stop node ID, stop name, stop code, stop text, cycles, notes, omitted former links, omitted unconfirmed links, truncated, company limit, text above, text below, text stops, text notes, layout width, layout height, layout boxes, layout links, narrow layout, former note, share register held, share register as at, share register label, share register note, attribution, notice, locked levels above, locked levels below, locked companies, locked message, upgrade message, upgrade URL