APO vs PH Comparison

Apollo is one of the world's largest alternative asset managers, with $908.4 billion in total assets under management, or AUM, including $685.0 billion in fee-earning assets, at the end of September 2025. The company has two core operating segments: asset management and retirement services. Apollo operates with scale in each of its major product lines-private equity (with $125.6 billion in total AUM and $71.7 billion in fee-earning AUM), real estate/real assets ($59.6 billion/$27.1 billion), and private credit ($723.2 billion/$586.2 billion). Apollo has a distribution profile that is likely not too far off from the industry averages-with 84% of its assets held by institutional investors and 16% by high-net-worth clients.

Parker Hannifin started out in 1917 as Parker Appliance, selling pneumatic brakes. Through the acquisition of branded components, the firm has expanded into aerospace engines, agricultural and construction machinery, freight and passenger vehicles, and industrial automation equipment. Within these larger systems, Parker sells a wide array of small, critical pieces such as hydraulic, electromechanical, climate control, and filtration components. Many of its products are designed to work together, resulting in a high rate of cross-selling.