Investopedia

Employer Identification Number (EIN): Who Needs It and How to Get It

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Michael Rosenston is a fact-checker and researcher with expertise in business, finance, and ...
Business News Daily

What’s the Difference Between a Tax ID Number and a Corporate Number?

Tax identification numbers (TINs) and corporate numbers are similar concepts with some important distinctions. A tax ID number is used to identify different kinds of taxpayers while a corporate number ...
Ars Technica

Database Design. What would you use as a secondary identifier, alpha, or numeric....

I have a primary 5 digit numeric identifier for a database "00000", which will give me up to 99,999 entries. Enough I think for my purposes. I could probably have gotten away with a 4 digit, but I ...
Investopedia

What Is a CUSIP Number, and How Do I Find a Stock or Bond CUSIP?

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...