Bidding Opportunities

Vendors doing business with Nassau County, including all those responding to DPW solicitations, must register with the County. The Nassau County Bid Solicitation Boards are open to all registered vendors. Vendors that have not registered are able to view open solicitation opportunities, but they are not able to download solicitation documents or submit bids or proposals.

To complete the registration process, please click on the New Vendor registration link:

If you are already registered, you can access the Solicitation Board here:  To access Bid Contract solicitations and Request for Proposal documents to download and view for free, click on the “Vendor Portal” link. 

Note that for Bid Contracts, in order to submit a bid, you must purchase a bid package from the Department of Public Works Permit Office directly. Do not use documents acquired on this website to submit your bid. They will not be accepted. They are strictly for informational purposes only. Please follow the instructions on the Notices to Bidders provided for each bid contract.