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Welcome to the Nassau County Vendor Portal. The Vendor Portal is Nassau County’s home page for organizations doing business with the County. The below links offer information to prospective and current vendors regarding the County’s procurement processes and offerings, as well as access to secure online vendor services including registering as a Nassau County vendor, viewing and participating in open solicitations, and submitting disclosure forms and other required documents.
Create or maintain vendor and principal accounts, submit vendor disclosures and documents, and submit vendor claims
View the County’s procurement policy, related presentations, and a glossary of procurement terms
View open solicitations and select commodity codes to receive email notifications of new solicitations
View links to the Office of Minority Affairs, Veterans Service Agency, and related departments of interest to the vendor community
View Nassau County blanket purchase contracts