Find information about contracting with Hennepin County, including processes, forms, and diversity rules for goods and biddable services. Hennepin County uses electronic signature functionality on contracts.Vendors interested in doing business with the State of Minnesota must register through the state's Supplier Portal. Here's where you can get started. Each invitiation to bid is posted on our website and can be found under the section titled "Current Solicitations". Protective and vendor payments are alternatives to issuing benefits directly to clients. Hennepin Healthcare has several areas of contracting. Each area has a unique process for submitting proposals or bids, and other procedures for contracting. 26 City of Milwaukee. (2016). Hennepin Healthcare has several areas of contracting.