Marsh & McLennan Companies, Inc. (NYSE:MRSH), the world’s largest insurance brokerage and risk management firm, is planning to boost productivity through the use of artificial intelligence (AI) and to centralize its technology and operations to drive efficiency and achieve significant cost savings. The company’s management is implementing a unified rebranding initiative, which includes a cost-cutting plan. Oakmark U.S. Concentrated Strategy mentioned Marsh & McLennan in its second-quarter 2026 investor letter, noting that the company holds a leading position in an oligopolistic market and is expected to further strengthen its performance through these operational improvements.