In our 24-criterion evaluation of industrial internet of things (IIoT) software platform providers, we identified the 14 most significant — ABB, Amazon Web Services (AWS), Bosch, C3.ai, GE Digital, Hitachi, IBM, Microsoft, Oracle, PTC, Samsung SDS, SAP, Siemens, and Software AG — and researched, analyzed, and scored them. This report shows how each provider measures up and helps infrastructure and operations (I&O) professionals select the right ones for their needs.