How Do You Find the EIN for a Business?

Find the EIN for a business by searching the Employer Identification Number Database. Hosted on, the database contains over eight million EIN numbers for various businesses, as provided by the Internal Revenue Service.

An EIN is available for proprietorships, LLCs, sole proprietorships, estates and trusts. An email and a password are required to access the EIN database, and subscription plans are available for corporations and other clients who need access to the list of unique numbers. The search function on uses a ZIP code, company name, state or industry code to accurately identify the EIN of the business in question.