# The Data City, contact us: Cached company hierarchy API

> Group structure (parent / subsidiary rows) for a company.

The Data City's cached company hierarchy API on its API access plan. It returns 2 of the 3 key fields we check: Parent, Family tree.
The cheapest of the 13 plans we rank by price is [Bigdata.com, $50 monthly](https://datacircle.dev/cached-company-hierarchy-apis/bigdata-com/50-monthly/llms.txt), at $5.50 per 1,000.

- This page: https://datacircle.dev/cached-company-hierarchy-apis/the-data-city/contact-us
- Get it: https://thedatacity.com/pricing
- Its API docs: https://docs.thedatacity.com/api-reference/companies/get-company-group-structure
- Sold by: The Data City (https://thedatacity.com)
- Checked: 2026-10-25

## In the answer

- Completeness: 67%
- Parent: ✓
- Family tree: ✓

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Group structure (parent / subsidiary rows) for a company.

## Data

- Freshness: 1 month
- Keep data: no API terms
- Use data: no API terms

## Rate limit

- Per second: 3.33
- Batch: 1

## The call

- You send: companyNumber
- Method: GET
- Path: /v2/companies/{companyNumber}/group-structure

## About the plan

- Plan: API access
- Who can get it: an organisation that emails support@thedatacity.com its name, the email of the person who will hold the key and what it will use the API for

## The 15 fields the plan's answer can hold

can be consolidated, consolidated accounts company name, consolidated accounts company number, is likely distinct brand, is sub group, is subsidiary company website inherited from group structure, parent company name, parent company number, subsidiary company level, subsidiary company name, subsidiary company number, subsidiary company website, type of accounts, ultimate parent company name, ultimate parent company number

## The Data City's plans (1)

- [The Data City, contact us](https://datacircle.dev/cached-company-hierarchy-apis/the-data-city/contact-us/llms.txt): 67% complete, 1 month

## The Data City's calls for this API (1)

- `GET /v2/companies/{companyNumber}/group-structure`: [The Data City, contact us](https://datacircle.dev/cached-company-hierarchy-apis/the-data-city/contact-us/llms.txt)

## The Data City's APIs (7)

- [The Data City: similar companies API pricing, 2 plans](https://datacircle.dev/similar-company-apis/the-data-city/free/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, POST /v1/fr/companies](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-post-v1-fr-companies/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, POST /v1/de/companies](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-post-v1-de-companies/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, POST /v1/ie/companies](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-post-v1-ie-companies/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, POST /v1/us/companies](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-post-v1-us-companies/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, GET /v1/fr/search](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-get-v1-fr-search/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, GET /v1/de/search](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-get-v1-de-search/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, GET /v1/ie/search](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-get-v1-ie-search/llms.txt)
- [The Data City: company discovery API pricing, 1 plan, GET /v1/us/search](https://datacircle.dev/company-discovery-apis/the-data-city/contact-us-beta-api-key-get-v1-us-search/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, GET /v1/fr/companies/{companyNumber}](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-get-v1-fr-companies-companynumber/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, GET /v1/de/companies/{companyNumber}](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-get-v1-de-companies-companynumber/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, GET /v1/ie/companies/{companyNumber}](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-get-v1-ie-companies-companynumber/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, GET /v1/us/companies/{companyNumber}](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-get-v1-us-companies-companynumber/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, POST /v1/fr/companies/batch](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-post-v1-fr-companies-batch/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, POST /v1/de/companies/batch](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-post-v1-de-companies-batch/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, POST /v1/ie/companies/batch](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-post-v1-ie-companies-batch/llms.txt)
- [The Data City: company enrichment API pricing, 1 plan, POST /v1/us/companies/batch](https://datacircle.dev/company-enrichment-apis/the-data-city/contact-us-beta-api-key-post-v1-us-companies-batch/llms.txt)
- [The Data City: company hierarchy API pricing, 1 plan, GET /v1/de/companies/{companyNumber}/group](https://datacircle.dev/company-hierarchy-apis/the-data-city/contact-us-beta-api-key-get-v1-de-companies-companynumber-group/llms.txt)
- [The Data City: company hierarchy API pricing, 1 plan, GET /v1/ie/companies/{companyNumber}/group](https://datacircle.dev/company-hierarchy-apis/the-data-city/contact-us-beta-api-key-get-v1-ie-companies-companynumber-group/llms.txt)
- [The Data City: company hierarchy API pricing, 1 plan, GET /v1/us/companies/{companyNumber}/group](https://datacircle.dev/company-hierarchy-apis/the-data-city/contact-us-beta-api-key-get-v1-us-companies-companynumber-group/llms.txt)
- [The Data City: cached company enrichment API pricing, 1 plan, GET /v2/companies/{companyNumber}](https://datacircle.dev/cached-company-enrichment-apis/the-data-city/contact-us-api-access-get-v2-companies-companynumber/llms.txt)
- [The Data City: cached company enrichment API pricing, 1 plan, POST /v2/companies/batch](https://datacircle.dev/cached-company-enrichment-apis/the-data-city/contact-us-api-access-post-v2-companies-batch/llms.txt)
- [The Data City: cached company enrichment API pricing, 1 plan, POST /v2/companies/by-website/batch](https://datacircle.dev/cached-company-enrichment-apis/the-data-city/contact-us-api-access-post-v2-companies-by-website-batch/llms.txt)
- [The Data City: cached company enrichment API pricing, 1 plan, GET /v2/companies/by-website](https://datacircle.dev/cached-company-enrichment-apis/the-data-city/contact-us-api-access-get-v2-companies-by-website/llms.txt)
- [The Data City: cached company enrichment API pricing, 1 plan, POST /v2/companies/by-website](https://datacircle.dev/cached-company-enrichment-apis/the-data-city/contact-us-api-access-post-v2-companies-by-website/llms.txt)
- [The Data City: cached company hierarchy API pricing, 1 plan](https://datacircle.dev/cached-company-hierarchy-apis/the-data-city/contact-us/llms.txt)
- [The Data City: cached company discovery API pricing, 1 plan](https://datacircle.dev/cached-company-discovery-apis/the-data-city/contact-us/llms.txt)

## The Data City: cached company hierarchy API alternatives

- [CompanyData.com, contact us](https://datacircle.dev/cached-company-hierarchy-apis/companydata-com/contact-us/llms.txt): 100% complete, 1 month
- [Apollo, contact us, Custom, POST /organizations/bulk_enrich](https://datacircle.dev/cached-company-hierarchy-apis/apollo/contact-us-custom-post-organizations-bulk-enrich/llms.txt): 67% complete, 1 month

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-10-25.

- https://docs.thedatacity.com/api-reference/companies/get-company-group-structure.md
- https://docs.thedatacity.com/api-reference/guides/authentication.md
- https://docs.thedatacity.com/api-reference/guides/rate-limits.md
- https://docs.thedatacity.com/global-api/index.md
- https://docs.thedatacity.com/instant-classification/guides/rate-limits.md
- https://docs.thedatacity.com/our-data/third-party-data/group-structure-data.md
- https://thedatacity.com/api-access
- https://thedatacity.com/pricing
- https://thedatacity.com/terms-and-conditions