# Firmainfo, free, 14-day free trial, GET /api/v1/companies/{company_id}/subsidiaries: Company hierarchy API

> Rapporterade dotterbolag, ägarandelar och senaste rapporteringsår.

Firmainfo's company hierarchy API on its 14-day free trial plan. It costs $0.00 per 1,000 companies. Firmainfo's docs list 2 of the 3 fields on our checklist: Company, Family tree.
We haven't run Firmainfo through [our company hierarchy API benchmark](https://datacircle.dev/best-company-hierarchy-api.txt) yet.
This plan is free. We rank 96 plans for company hierarchy APIs by price. Half the plans cost $14.458 per 1,000 companies or less. [See how many company hierarchy API plans are free.](https://datacircle.dev/best-company-hierarchy-api.txt)
[DanskCVRAPI's DKK 599 (about $90) 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 (about $90) 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/firmainfo/free-14-day-free-trial-get-api-v1-companies-company-id-subsidiaries
- [Company hierarchy API: the 5 best providers compared](https://datacircle.dev/best-company-hierarchy-api.txt)
- Get it: https://www.firmainfo.se/developers/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- Request: `GET https://firmainfo.se/api/v1/companies/{company_id}/subsidiaries`
- API key: with the plan, on https://www.firmainfo.se/developers/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- Its API docs: https://www.firmainfo.se/docs/api/dotterbolag/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- Sold by: Firmainfo (https://firmainfo.se?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing)
- Checked: 2026-11-07

## In the answer

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

## Price

- $ per 1,000 companies: $0.00
- Per: call
- Billing: free

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Rapporterade dotterbolag, ägarandelar och senaste rapporteringsår.

## Data

- Freshness: stored
- Countries: Sweden
- Full family tree: no
- Keep data: no API terms
- Use data: Kompletta snapshots, massuttag och vidareförsäljning ingår inte i standardplanerna och kräver separat Enterprise-avtal.

## Plan

- Pay: kr0
- You get: 5,000 credits
- Enough for: 5,000 calls, once
- Expires: 14 days

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: company_id
- Method: GET
- Path: /api/v1/companies/{company_id}/subsidiaries

## About the plan

- Plan: 14-day free trial
- Who can get it: anyone who applies for API access

## The 10 fields the plan's answer can hold

company ID, company name, registration number, coverage basis, coverage complete, subsidiaries, relationship, capital share, reported fiscal year end, possibly stale

## Firmainfo's plans (5)

- [Firmainfo, free, 14-day free trial, GET /api/v1/companies/{company_id}/subsidiaries](https://datacircle.dev/company-hierarchy-apis/firmainfo/free-14-day-free-trial-get-api-v1-companies-company-id-subsidiaries/llms.txt): $0.00 per 1,000, 67% complete, stored
- [Firmainfo, kr499 monthly, Builder, GET /api/v1/companies/{company_id}/subsidiaries](https://datacircle.dev/company-hierarchy-apis/firmainfo/kr499-monthly-builder-get-api-v1-companies-company-id-subsidiaries/llms.txt): $1.008 per 1,000, 67% complete, stored
- [Firmainfo, kr1,990 monthly, Growth, GET /api/v1/companies/{company_id}/subsidiaries](https://datacircle.dev/company-hierarchy-apis/firmainfo/kr1990-monthly-growth-get-api-v1-companies-company-id-subsidiaries/llms.txt): $0.804 per 1,000, 67% complete, stored
- [Firmainfo, kr5,990 monthly, Scale, GET /api/v1/companies/{company_id}/subsidiaries](https://datacircle.dev/company-hierarchy-apis/firmainfo/kr5990-monthly-scale-get-api-v1-companies-company-id-subsidiaries/llms.txt): $0.605 per 1,000, 67% complete, stored
- [Firmainfo, contact us, Enterprise, GET /api/v1/companies/{company_id}/subsidiaries](https://datacircle.dev/company-hierarchy-apis/firmainfo/contact-us-enterprise-get-api-v1-companies-company-id-subsidiaries/llms.txt): $0.505 per 1,000, 67% complete, stored

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

- `GET /api/v1/companies/{company_id}/group`: [Firmainfo, free, 14-day free trial, GET /api/v1/companies/{company_id}/group](https://datacircle.dev/company-hierarchy-apis/firmainfo/free-14-day-free-trial-get-api-v1-companies-company-id-group/llms.txt)
- `GET /api/v1/companies/{company_id}/subsidiaries`: [Firmainfo, free, 14-day free trial, GET /api/v1/companies/{company_id}/subsidiaries](https://datacircle.dev/company-hierarchy-apis/firmainfo/free-14-day-free-trial-get-api-v1-companies-company-id-subsidiaries/llms.txt)

## Firmainfo's APIs (3)

- [Firmainfo: company discovery API pricing, 5 plans](https://datacircle.dev/company-discovery-apis/firmainfo/free/llms.txt)
- [Firmainfo: company enrichment API pricing, 5 plans](https://datacircle.dev/company-enrichment-apis/firmainfo/free/llms.txt)
- [Firmainfo: company hierarchy API pricing, 5 plans, GET /api/v1/companies/{company_id}/subsidiaries](https://datacircle.dev/company-hierarchy-apis/firmainfo/free-14-day-free-trial-get-api-v1-companies-company-id-subsidiaries/llms.txt)

## Firmainfo: company hierarchy API alternatives

- [DiscoLike, $15,350 yearly](https://datacircle.dev/company-hierarchy-apis/discolike/15350-yearly/llms.txt): $1.20 per 1,000, 67% complete, stored
- [Skrapp, $13,488 yearly, Enterprise 500K, POST /api/v3/companies/bulk-enrich](https://datacircle.dev/company-hierarchy-apis/skrapp/13488-yearly-enterprise-500k-post-api-v3-companies-bulk-enrich/llms.txt): $4.496 per 1,000, 33% complete, stored
- [Canonical, top-up, Extra credits (Pro)](https://datacircle.dev/company-hierarchy-apis/canonical/top-up-extra-credits-pro/llms.txt): $8.00 per 1,000, 67% complete, stored
- [SavvyIQ, top-up from $5](https://datacircle.dev/company-hierarchy-apis/savvyiq/top-up-from-5/llms.txt): $200.00 per 1,000, 100% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-07.

- https://firmainfo.se/api/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://www.firmainfo.se/developers/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://www.firmainfo.se/docs/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://www.firmainfo.se/docs/api/dotterbolag/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://www.firmainfo.se/docs/autentisering/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing
- https://www.firmainfo.se/en/docs/api/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-hierarchy-api-pricing