AnswerPool

SIC Constituents API: SIC industry code in, the registrants filing under it out (CIK + name + — free lookup

SIC industry code in, the registrants filing under it out (CIK + name + ticker). Turns an industry into a company list in one call instead of paging EDGAR's company search. Free, no key.

Free — no key, no signup, rate-limited to 60 calls per minute per client.

How do you call it?

GET /v1/sec/companies-by-sic — product id sec_companies_by_sic. Over MCP, call answerpool_get with product_id=sec_companies_by_sic.

curl "https://answerpool.io/v1/sec/companies-by-sic?sic=7372"

Live call: https://answerpool.io/v1/sec/companies-by-sic?sic=7372 · JSON sample: /v1/samples/sec_companies_by_sic

What does the answer look like?

A representative response, the same static sample served at /v1/samples/sec_companies_by_sic.

as_of2026-09-03T14:00:00Z
sic7372
count1
noteRegistrants filing 10-K under this SIC code, per EDGAR company search. Names and tickers are filled from the SEC ticker file, so unlisted filers show cik only.
disclaimerDerived from public SEC EDGAR filings; not investment advice.
refresh_after2026-09-17T11:15:00.000Z

companies

ciknameticker
0000789019MICROSOFT CORPMSFT
The same sample as raw JSON
{
 "as_of": "2026-09-03T14:00:00Z",
 "sic": 7372,
 "count": 1,
 "companies": [
  {
   "cik": "0000789019",
   "name": "MICROSOFT CORP",
   "ticker": "MSFT"
  }
 ],
 "note": "Registrants filing 10-K under this SIC code, per EDGAR company search. Names and tickers are filled from the SEC ticker file, so unlisted filers show cik only.",
 "disclaimer": "Derived from public SEC EDGAR filings; not investment advice.",
 "refresh_after": "2026-09-17T11:15:00.000Z"
}

How fresh is it, and where does the data come from?

The fastest source behind this answer can change every 15 minutes, so every response carries a refresh_after timestamp — right now it would be 2026-09-17T11:15:00.000Z. Schedule the next call on that value rather than on a guess.

Method version 0.1.0 · serving cache 1 day · every response carries a result_id you can resolve at /v1/provenance.

When should you use it?

You have a SIC code (or got one from /v1/sec/sic) and need its companies.

What you skip building

When should you not use it?

Quantitative comparables — /v1/peers/similar ranks by XBRL similarity.

Where else can you find this?