EDGAR Search: CIK Lookup
The Central Index Key (CIK) is used on the SEC's computer systems to identify corporations and individual people who have filed disclosure with the SEC. You can use the CIK to search for company or fund filings on EDGAR.
To find a CIK for a company, fund, or individual available on the website EDGAR database, type in as much of the company name as you know. For example: "Bank of" would find both "Bank of New York" and "Bank of Boston."
You may also search www.edgarcompany.sec.gov for a company, fund, or individual CIK.