Applicable only to the United States entities, an Employer Identification Number or EIN is the corporate/organizational equivalent to a Social Security number. EIN’s are issued to anyone, including individuals.
For more information see: https://en.wikipedia.org/wiki/Employer_Identification_Number
Short for “Basic Registry of Identified Global Entities” — a BRIDGE ID is a unique identifying number assigned to philanthropic organizations, non-governmental organizations, programs, projects, and even schools and churches, across the globe.
For more information see: http://bridge-registry.org