APH vs BX Comparison

Amphenol is a global supplier of connectors, sensors, and interconnect systems. It holds the second-largest connector market share globally and sells into the automotive, broadband, commercial air, industrial, IT and data communications, military, mobile devices, and mobile networks end markets. Amphenol is diversified geographically, with operations in 40 countries.

Blackstone is the world's largest alternative-asset manager with $1.304 trillion in total assets under management, including $937.6 billion in fee-earning assets under management, at the end of March 2026. The company operates with scale in each of its major product lines: private equity (27% of fee-earning AUM and 34% of base management fees), real estate/real assets (30% and 33%), credit and insurance (33% and 26%), and other alternatives (10% and 7%). While the firm primarily serves institutional investors (84% of AUM), it also caters to clients in the high-net-worth channel (16%). Blackstone operates through 25 offices in the Americas (8), Europe and the Middle East (9), and the Asia-Pacific region (8).