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AmpliTech Group Inc designs, develops, engineers, and assembles micro-wave component-based amplifiers that meet individual customer specifications. It operates in two segments: the manufacturing and engineering segment. The products of the company consist of RF amplifiers & related subsystems, operating at multiple frequencies from 50kHz to 44GHz, including Low Noise Amplifiers, Medium Power Amplifiers, cryogenic amplifiers, and custom assemblies. The company also offers non-recurring engineering services on a project-by-project basis, for a predetermined fixed contractual amount, or on a time-plus-material basis. It also operates as a manufacturer, & distributor of cryogenic microwave amplifiers, RF designs, & applications for Wireless Networks & the future of Wireless Communication.

Apple is among the largest companies in the world, with a broad portfolio of hardware and software products targeted at consumers and businesses. Apple's iPhone accounts for the majority of the firm's sales, and Apple's other products, such as the Mac, iPad, and Watch, are designed around the iPhone as the focal point of an expansive software ecosystem. Apple has progressively worked to add new applications, such as streaming video, subscription bundles, and augmented reality. The firm designs its own software and semiconductors and works with subcontractors such as Foxconn and TSMC to build its products and chips. Slightly less than half of Apple's sales come directly through its flagship stores, with the majority coming indirectly through partnerships and distribution.