A lberto Alcocer, along with his cousin Alberto Cortina, is one of Spain's most famous and, at times, controversial financiers. The two are collectively known as "Los Albertos." Their business careers took off after they both married daughters of Esther and Alicia Koplowitz's father, who founded the construction company Fomento de Construcciones y Contratas (FCC). The cousins took control of FCC and transformed it into a major player in the Spanish construction industry.

In the 1980s and 90s, Los Albertos became symbols of Spain's booming financial culture, diversifying their interests into banking, energy, and real estate through their holding company, Alcor. They eventually lost control of FCC after their divorces from the Koplowitz sisters. However, they remained formidable investors, continuing to manage a significant portfolio of assets. Today, their main investment vehicle is Alantra, a global investment banking and asset management firm. They also hold a significant stake in the energy company Ence. Their careers have been marked by bold corporate raids, high-profile deals, and significant influence in the Spanish business elite.