1. Tesla: Known for its electric vehicles, Tesla has also made significant strides in solar energy and energy storage with products like the Powerwall. 2. Ørsted: This Danish company transitioned from fossil fuels to become a global leader in offshore wind energy, showcasing a successful pivot towards sustainability. 3. M-KOPA: A pioneer in off-grid solar power in Africa, M-KOPA provides affordable solar solutions to households that lack access to reliable electricity.