Carlos Slim Helú is a Mexican business oligarch, investor and philanthropist. From 2010 to 2013, Slim was ranked as the richest person in the world by Forbes business magazine. He derived his fortune from his extensive holdings in a considerable number of Mexican companies through his conglomerate, Grupo Carso. As of July 2025, the Bloomberg Billionaires Index ranked him as the 18th-richest person in the world, with a net worth of US$99.1 billion, making him the richest person in Latin America.
Slim's corporate conglomerate spans numerous industries across the Mexican economy, including education, health care, industrial manufacturing, transportation, real estate, mass media, mining, energy, entertainment, technology, retail, sports and financial services. However, the core of his fortune derives from telecommunications, where he owns América Móvil (with operations throughout Latin America) and the Mexican carrier Telcel and Internet service provider Telmex, a state-run-gone-private company which maintained a virtual monopoly for many years after Slim's acquisition. He accounts for 40 per cent of the listings on the Mexican Stock Exchange.