Juan Calle Restrepo

Empresas Públicas de Medellín ESP is a holding company which operates as a municipal-order decentralized company. The firm provides residential public utilities of aqueduct, sewage, power and combustible gas distribution. It also provides the domiciliary public utilities of cleaning, waste treatment and utilization, as well as the complementary activities. The company was founded on August 6, 1955 and is headquartered in Medellin, Colombia.

ISAGEN SA ESP engages in the generation, sale, and commercialization of electricity. Its projects include San Carlos hydroelectric, Sogamoso, Miel I, Jaguas Rio Amoya, Calderas and Termocentro thermal power plant. The company was founded on April 4, 1995 and is headquartered in Medellín, Colombia.

UNE EPM Telecomunicaciones SA engages in the provision of telecommunication services. It specializes in fixed and mobile telephony, internet, data, and television services. The firm also offers IT outsourcing, data center and cloud, as well as connectivity, unified communications, and modernization services. The company was founded on June 23, 2006 and is headquartered in Medellin, Colombia.

CFA Society Toronto supports the professional and business development of charterholders. It provides member services including educational programs, sponsored events, employment postings, and networking opportunities. The company was founded in 1936 and is headquartered in Toronto, Canada.

Summit Materials LLC manufactures construction materials. It uses its materials internally to produce ready-mixed concrete and asphalt paving mix. The firm operates through the following segments: West, East, and Cement. The company was founded by Thomas W. Hill in 2009 and is headquartered in Denver, CO.

Tecnología Intercontinental SA de CV is a private company based in Mexico City, Mexico that was acquired by Empresas Públicas de Medellín ESP on September 23, 2013 for $113 million. The Mexican company provides reliable and feasible comprehensive solutions for water treatment to its customers, with national and international service and support. The company's services cover the entire water cycle, from potable water treatment to wastewater treatment. The company is ultimately controlled by the Government of Colombia.