  | Accounting & Finance | This category is for formal solicitations for the Accounting or Finance Department |
| | Administration | This category is for formal solicitations for the Administration Department |
| | Airport | This category is for formal solicitations for the Airport. |
| | All County Departments | This category is for solicitations that will benefit the entire County, and are not specified to just one or two departments. An example may be Office Supplies. |
| | Convention and Visitor Bureau | This category is for formal solicitations for the Convention and Visitor Bureau. Examples of solicitations for this group would include Community Promotions, and Advertising. |
| | County Clerk | This category is for formal solicitations for the County Clerk Office. |
| | County Parks | This category is for formal solicitations for County Parks. |
| | Courts and Public Safety | This category is for formal solicitations that would include the purchase of items for the Courts, Public Safety Officers, and Justice System. |
| | Equalization | This category is for formal solicitations for Equalization Department. |
| | Facilities Management | This category is for formal solicitations for Facilities Management. |
| | Health Services | This category is for formal solicitations for all Health Care Services to the Public. This includes solicitations for the Public Health Department and HealthWest (Community Mental Health Center). |
| | Healthwest | |
| | Human Resources | This category is for formal solicitations for Human Resources and Employee Benefits. |
| | Information Technology | This category is for formal solicitations for the Information Technology or Information Systems Department |
| | MATS | This category is for formal solicitations for Muskegon Area Transit, or Public Transportation (busses). |
| | Office Services | This category is for formal solicitations for the Office Services Department. Examples of a solicitation may include: Printing Services. |
| | Public Works | This category is for formal solicitations for the Department of Public Works. |
| | Purchasing | |
| | Register of Deeds | This category is for formal solicitations for Register of Deeds. |
| | Resource Recovery Center | This category is for formal solicitations for the Resource Recovery Center. Formerly known as: Waste Water Management. |
| | Solid Waste | This category is for formal solicitations for Solid Waste. |
| | Treasurer | This category is for formal solicitations for Treasurer. |