Allegheny County is soliciting Proposals for IT and Professional Services to support the work of DHS in the service areas listed below. Name of RFP: Database Design (Web-based) and Information Technology Services.Steps in the grant-seeking process. How to draft a proposal. The Allegheny County Sewer Authority (ALCOSAN) is seeking proposals, through this. Agreement: A contract negotiated between Allegheny County and the Successful Proposer to provide the Contract Services. Partner4Work is seeking proposals for design build technology services to support relocation of PA CareerLink® Allegheny.