Subsidiaries API reference | SecFeed for developers

Endpoints

/v1/subsidiaries

GEThttps://secfeedapi.com/v1/subsidiaries

Subsidiaries and jurisdictions from Exhibit 21.

Parameter	Type	Description	Example
`ticker`	string	Company ticker. Use either ticker or cik.	`AAPL`
`cik`	string	Company CIK. Takes precedence over ticker.	`320193`
`accessionNo`	string	A specific annual report. Defaults to the latest 10-K, 20-F or 40-F.	`0000320193-25-000079`

Many companies list only significant subsidiaries, so the list is what the company chose to disclose.

Request examples

Every response below is real output from the API, trimmed to the first records.

Apple's subsidiaries

Name and jurisdiction for each subsidiary in Exhibit 21.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=AAPL"

import os, requests

r = requests.get(
    "https://secfeedapi.com/v1/subsidiaries",
    params={'ticker': 'AAPL'},
    headers={"Authorization": f"Bearer {os.environ['SECFEED_KEY']}"},
    timeout=60,
)
r.raise_for_status()
print(r.json())

{
  "cik": 320193,
  "accessionNo": "0000320193-25-000079",
  "exhibit": "https://www.sec.gov/Archives/edgar/data/320193/000032019325000079/a10-kexhibit21109272025.htm",
  "subsidiaries": [
    {
      "name": "Apple Asia Limited",
      "jurisdiction": "Hong Kong"
    },
    {
      "name": "Apple Asia LLC",
      "jurisdiction": "Delaware, U.S."
    }
  ]
}

Microsoft by CIK

exhibit links the source document.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?cik=789019"

import os, requests

r = requests.get(
    "https://secfeedapi.com/v1/subsidiaries",
    params={'cik': '789019'},
    headers={"Authorization": f"Bearer {os.environ['SECFEED_KEY']}"},
    timeout=60,
)
r.raise_for_status()
print(r.json())

{
  "cik": 789019,
  "accessionNo": "0001193125-26-323660",
  "exhibit": "https://www.sec.gov/Archives/edgar/data/789019/000119312526323660/msft-ex21.htm",
  "subsidiaries": [
    {
      "name": "Microsoft Ireland Research Unlimited Company",
      "jurisdiction": "Ireland"
    },
    {
      "name": "Microsoft Global Finance Unlimited Company",
      "jurisdiction": "Ireland"
    }
  ]
}

Coca-Cola

Group by jurisdiction to see where a company operates.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=KO"

import os, requests

r = requests.get(
    "https://secfeedapi.com/v1/subsidiaries",
    params={'ticker': 'KO'},
    headers={"Authorization": f"Bearer {os.environ['SECFEED_KEY']}"},
    timeout=60,
)
r.raise_for_status()
print(r.json())

{
  "cik": 21344,
  "accessionNo": "0001628280-26-010047",
  "exhibit": "https://www.sec.gov/Archives/edgar/data/21344/000162828026010047/a20251231exhibit211.htm",
  "subsidiaries": [
    {
      "name": "The Coca-Cola Company",
      "jurisdiction": "Delaware"
    },
    {
      "name": "Atlantic Industries",
      "jurisdiction": "Cayman Islands"
    }
  ]
}

Response fields

Field	Type	Meaning
`cik`	integer	Company CIK.
`accessionNo`	string	Annual report the exhibit belongs to.
`exhibit`	string	URL of the Exhibit 21 document.
`subsidiaries[]`	array	One object per subsidiary, in filing order.
`subsidiaries[].name`	string	Subsidiary name as written.
`subsidiaries[].jurisdiction`	string	State or country of organization, null when the exhibit does not say.

How to

How do I count subsidiaries by country?

Group subsidiaries by jurisdiction.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=MSFT"

How do I use an older annual report?

Pass that report's accessionNo.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=AAPL&accessionNo=0000320193-25-000079"

How do I find the annual report accession numbers?

Search 10-K filings with the Filing Query API.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/filings?query=ticker:AAPL%20AND%20formType:%2210-K%22&size=5"

How do I see the exhibit as filed?

Open the exhibit URL or convert it with the PDF Generator.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=KO"

How do I compare two years?

Call once per accessionNo and diff the names.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=AAPL"

Does it work for foreign filers?

Yes, for 20-F and 40-F filers that attach an Exhibit 21 or 8.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=JNJ"

What if the company has no Exhibit 21?

You get a 400 saying no Exhibit 21 in this filing. Large filers such as Pfizer attach one, so the example returns the list.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?ticker=PFE"

Can I use a CIK with leading zeros?

Yes, leading zeros are ignored.

curl -H "Authorization: Bearer $SECFEED_KEY" \
  "https://secfeedapi.com/v1/subsidiaries?cik=0000320193"

Errors

400 no Exhibit 21 in this filing.
400 when the ticker cannot be resolved.

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