Alternative Vendors: This tab lists top wireless banking providers. Note: This list may not be all-inclusive, and is just a starting point for your search and selection. Threshold Analysis: A typical analysis to determine that wireless banking providers require maximum level of due diligence scutiny. One analysis should apply to all alternative providers. Vendor Due Diligence Checklist: This is the questionnaire you should send to all alternative providers to be used as a basis for your interview to determine risk associated with each alternative provider.