The Nassau County Bid Solicitation Boards are open to all registered vendors. Vendors that have not registered are able to view open solicitation opportunities.Nassau County Procurement and Contracts Management Department (PCM) functions as the central hub for purchasing and contracts management activities. Bidders must submit with the Bid Proposal evidence of capabilities to complete the Scope of Services. Welcome to the Online Vendor Bid Site for suppliers and bidders interested in bidding opportunities for the commodities services and technology contracts.