Eide Bailly was formed in 1998 through the merger of Eide Helmeke & Co. and Charles Bailly & Co., both established accounting firms. The company traces its origins to Bishop Brissman & Co., founded in 1917, which became Cull Eide & Co. in 1944 before merging with Charles Bailly & Co. in 1998. Eide Bailly provides assurance, tax, financial advisory, and consulting services. The firm has expanded its service offerings to include audit, cybersecurity, wealth planning, and technology consulting. Eide Bailly serves various industries including healthcare, financial services, and manufacturing.