# FactSet, contact us, Personalized proposal, GET /factset-entity/v1/ultimate-entity-structures: Company hierarchy API

> Identify full ultimate entity structures including ultimate parents, subordinates, and active and inactive entities.

FactSet's company hierarchy API on its Personalized proposal plan. It returns 1 of the 3 key fields we check: Parent.
We haven't run FactSet through [our company hierarchy API benchmark](https://datacircle.dev/best-company-hierarchy-api.txt) yet.
FactSet gives this plan's price on request. We rank 50 plans for company hierarchy APIs by price. Half the plans cost $25.375 per 1,000 companies or less.
[DanskCVRAPI's DKK 599 monthly plan](https://datacircle.dev/company-hierarchy-apis/danskcvrapi/dkk-599-monthly/llms.txt) is the cheapest paid plan per 1,000 companies: $0.045. DanskCVRAPI's plan covers companies in Denmark only.
[GlobalEntity API's €59 monthly plan](https://datacircle.dev/company-hierarchy-apis/globalentity-api/59-monthly/llms.txt) covers any number of companies in 54 countries only. GlobalEntity API's €59 monthly plan costs less up front than DanskCVRAPI's DKK 599 monthly plan.
[DiscoLike](https://datacircle.dev/company-hierarchy-apis/discolike/99-monthly/llms.txt), [Bigdata.com](https://datacircle.dev/company-hierarchy-apis/bigdata-com/50-monthly/llms.txt) and [Magellan Data](https://datacircle.dev/company-hierarchy-apis/magellan-data/375-pack-25000-credits-post-v1-corporate-families/llms.txt) are the best company hierarchy API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-hierarchy-apis/factset/contact-us-personalized-proposal-get-factset-entity-v1-ultimate-entity-structures
- [Company hierarchy API: 5 providers compared](https://datacircle.dev/best-company-hierarchy-api.txt)
- Get it: https://www.factset.com/factset-pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- Request: `GET https://api.factset.com/content/factset-entity/v1/ultimate-entity-structures`
- API key: with the plan, on https://www.factset.com/factset-pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- Its API docs: https://github.com/FactSet/enterprise-sdk/blob/main/code/python/FactSetEntity/v1/docs/EntityStructureApi.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing#get_ultimate_entity_structure
- Sold by: FactSet (https://www.factset.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 33%
- Parent: ✓

## Price

- Billing: contact

## Aggregators

- Aggregators: none

## In their words

- Their pitch: Identify full ultimate entity structures including ultimate parents, subordinates, and active and inactive entities.

## Data

- Full family tree: yes
- Keep data: no API terms
- Use data: no API terms

## Rate limit

- Per second: 10
- Batch: 100

## Speed

- Answer: in the call

## The call

- You send: ids. Optional: level, active
- Method: GET
- Path: /factset-entity/v1/ultimate-entity-structures

## About the plan

- Plan: Personalized proposal
- Who can get it: clients whose FactSet account team authorizes them for the API, after a personalized proposal from its sales team

## The 8 fields the plan's answer can hold

request ID, FactSet ID, FactSet entity ID, ultimate parent ID, parent entity ID, level, inactive flag, description

## FactSet's plans (1)

- [FactSet, contact us, Personalized proposal, GET /factset-entity/v1/ultimate-entity-structures](https://datacircle.dev/company-hierarchy-apis/factset/contact-us-personalized-proposal-get-factset-entity-v1-ultimate-entity-structures/llms.txt): 33% complete

## FactSet's calls for this API (2)

- `GET /factset-entity/v1/entity-structures`: [FactSet, contact us, Personalized proposal, GET /factset-entity/v1/entity-structures](https://datacircle.dev/company-hierarchy-apis/factset/contact-us-personalized-proposal-get-factset-entity-v1-entity-structures/llms.txt)
- `GET /factset-entity/v1/ultimate-entity-structures`: [FactSet, contact us, Personalized proposal, GET /factset-entity/v1/ultimate-entity-structures](https://datacircle.dev/company-hierarchy-apis/factset/contact-us-personalized-proposal-get-factset-entity-v1-ultimate-entity-structures/llms.txt)

## FactSet's APIs (4)

- [FactSet: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/factset/contact-us/llms.txt)
- [FactSet: people search API pricing, 1 plan, GET /factset-people/v1/company-people](https://datacircle.dev/people-search-apis/factset/contact-us-personalized-proposal-get-factset-people-v1-company-people/llms.txt)
- [FactSet: people search API pricing, 1 plan, GET /factset-people/v1/company-positions](https://datacircle.dev/people-search-apis/factset/contact-us-personalized-proposal-get-factset-people-v1-company-positions/llms.txt)
- [FactSet: company hierarchy API pricing, 1 plan, GET /factset-entity/v1/ultimate-entity-structures](https://datacircle.dev/company-hierarchy-apis/factset/contact-us-personalized-proposal-get-factset-entity-v1-ultimate-entity-structures/llms.txt)
- [FactSet: people enrichment API pricing, 1 plan, GET /factset-people/v1/jobs](https://datacircle.dev/person-enrichment-apis/factset/contact-us-personalized-proposal-get-factset-people-v1-jobs/llms.txt)
- [FactSet: people enrichment API pricing, 1 plan, GET /factset-people/v1/profiles](https://datacircle.dev/person-enrichment-apis/factset/contact-us-personalized-proposal-get-factset-people-v1-profiles/llms.txt)

## FactSet: company hierarchy API alternatives

- [Infocredit Group, contact us, API4ALL access, GET /a4a/3.0/api/report/structure/code/{code}](https://datacircle.dev/company-hierarchy-apis/infocredit-group/contact-us-api4all-access-get-a4a-3-0-api-report-structure-code-code/llms.txt): 33% complete, stored
- [Kontur.Focus, contact us, Legal entity links (Связи юридического лица), GET /api3/beneficialOwners](https://datacircle.dev/company-hierarchy-apis/kontur-focus/contact-us-legal-entity-links-get-api3-beneficialowners/llms.txt): 33% complete
- [Opendatabot, contact us](https://datacircle.dev/company-hierarchy-apis/opendatabot/contact-us/llms.txt): 33% complete, live
- [Proff, contact us, Proff Premium API, GET /api/companies/register/corporateStructures/{country}](https://datacircle.dev/company-hierarchy-apis/proff/contact-us-proff-premium-api-get-api-companies-register-corporatestructures-country/llms.txt): 33% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://developer.factset.com/api-catalog?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://developer.factset.com/api-catalog/factset-entity-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://developer.factset.com/api-catalog/factset-people-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://raw.githubusercontent.com/factset/enterprise-sdk/main/code/python/FactSetEntity/v1/docs/EntityStructureApi.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://raw.githubusercontent.com/factset/enterprise-sdk/main/code/python/FactSetEntity/v1/docs/UtlimateEntityStructure.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://www.factset.com/factset-pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://www.factset.com/legal?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing