AD vs IPGP Comparison

Array Digital Infrastructure, formerly US Cellular, sold its regional wireless operations serving about 4.4 million customers to T-Mobile in August 2025. The firm has agreed to sell most of its remaining spectrum licenses; however, it will still retain rights to C-band spectrum in several locations after these deals are closed. Array also owns a 5.5% stake in Verizon Wireless' Los Angeles operations, as well as other smaller wireless partnership interests in Oklahoma and upstate New York. The firm still operates a portfolio of about 4,400 wireless towers.

IPG Photonics Corp is a vertically integrated developer and manufacturer of high-performance fiber lasers, laser and non-laser systems, fiber amplifiers, diode lasers, and related optical components. Its products are used in diverse applications in the manufacturing, automotive, industrial, aerospace, semiconductor, and consumer end markets. The company sells its products globally to original equipment manufacturers (OEMs), system integrators, and end users. Additionally, it manufactures complementary products used with its lasers, including optical delivery cables, fiber couplers, beam switches, optical processing heads, in-line sensors, and chillers. Geographically, the company generates maximum revenue from North America, followed by China, Japan, Germany, and other markets.