The 2017 COMSOL Conference, held in seven locations across the globe, brought together thousands of engineers, researchers, and designers worldwide. Attendees connected and exchanged best practices in mathematical modeling and multiphysics simulation. Keynote presentations were delivered by industry leaders such as Amgen, W. L. Gore and Associates, and STMicroelectronics. Attendees also got a behind the scenes look at how these organizations develop their designs. Many talks shared how to capitalize on the power of multiphysics modeling by expanding its reach through custom simulation apps.