Yes, registering for the DUNS number is free of charge. Dun & Bradstreet offers additional products and services, which they may suggest that you purchase, however, you do not need to do so for Grants.gov.
Why does my organization have to provide a DUNS number?
The Office of Management and Budget (OMB) has determined that there is a need for improved statistical reporting of federal grants. OMB has adopted the use of the DUNS number as a way to identify organizations that receive grant awards and to track how grants money is dispersed.
How can I check if my organization already has a DUNS Number?
If you are not sure if your organization already has a DUNS number, first consult your organization's business office, chief financial officer, grant administrator or authorizing official.
What information will I need to obtain a DUNS number?
You will need the following information to request a DUNS number:
Organization name
Organization address
Local telephone number
Name of CEO/Organization owner
Legal structure of the organization
Year the organization started
Primary line of business
Total number of employees