Definition:"Controlling interest" is a noun that refers to owning more than 50% of a company's voting shares. This means that the person or group with the controlling interest has the power to make important decisions about how the company runs, such as who to hire, what products to make, and how to spend money.
"Pull the strings": This idiom means to control or influence something or someone behind the scenes.
"Call the shots": This phrase means to be in charge or to make the important decisions.