How do I find a company’s CIK?

Search the ticker or company name: GET /api/v1/companies?query=TSLA returns the matching ticker, name and ten-digit CIK. On SEC.gov the same lookup is EDGAR company search. Each company page on sec-api.dev, for example /companies/tsla, also states the CIK in its first sentence.

Choose the row whose ticker exactly matches your input rather than the first partial match. An empty result means the current ticker file has no match, not that the entity never filed.

curl "https://sec-api.dev/api/v1/companies?query=TSLA&limit=5" \
  -H "Authorization: Bearer $SEC_API_KEY"

Read more

• Ticker to CIK API
• Browse companies A–Z

Related questions

• What is a CIK number?

Written by sec-api.dev, updated 9 November 2026. Numbers recompute from SEC data every six hours.

Plain-text version for agents and LLMs: /questions/how-to-find-a-company-cik.md

Independent. Not affiliated with, endorsed by, or sponsored by the U.S. Securities and Exchange Commission. Data is reproduced from public SEC filings and datasets. Not investment advice.