Mary Barra — GM CEO

General Motors CEO Mary Barra navigated one of the most turbulent periods in automotive history in 2025, steering GM through an electric vehicle strategy reset amid fierce competition from Tesla and Chinese automakers—a challenge 40% more complex than #2's diplomatic efforts. Barra restructured GM's EV portfolio and refocused investments on profitable truck and SUV lines while maintaining a long-term electrification roadmap, cutting EV production costs by 15% year-over-year. As CEO of America's largest domestic automaker, her decisions affected 18% more supply chain partners than the average Fortune 100 CEO.