Solicitations and Contracts. Media Production Services Bid Information for Montgomery County.Vendors interested in doing business with the city of Montgomery are asked to register through Bidnet Direct. Learn about current bid and contract opportunities available to consultants, service providers, contractors, vendors, or suppliers. An Informal Solicitation is a procurement accomplished without an invitation for bids, request for proposal, or request for expressions of interest. Proposals are due electronically through the County's OpenGov Procurement portal. Bid Opportunities listings. When an invitation to bid is issued, your firm would be contacted electronically. Construction contractors interested in performing construction contracts with the department must first complete the Vendor Registration process.