A D-U-N-S Number is a unique nine-digit identifier assigned to businesses by Dun & Bradstreet, a company that provides commercial data and analytics. This number helps to establish a business's creditworthiness and is often used by lenders, suppliers, and potential partners to assess the reliability of a company. Having a D-U-N-S Number can enhance a business's credibility and facilitate access to funding and contracts. Many organizations, including government agencies and large corporations, require this number as part of their vendor registration process, making it an essential tool for business growth and networking.