If the business is a publicly traded company, employer identification numbers may be found online on that company's website for investor relations, the Houston Chronicle reports. Companies must list their EINs on the first page of filing documents with the U.S. Securities and Exchange Commission.
The U.S. Securities and Exchange Commission has online databases where EINs can be located, the Houston Chronicle notes.
EINs are identification numbers provided to taxpayers who employ employees and withhold taxes, according to the IRS. Some trusts and estates also need EINs. Taxpayers who misplace their EIN can contact the IRS to retrieve their numbers.