Slim is a widower and has six children: Carlos, Marco Antonio"), Patricio"), Soumaya, Vanessa and Johanna. Three of them (Carlos, Marco Antonio and Patricio) manage their father's businesses. His wife, Soumaya Domit, died on March 7, 1999.[16]​.

According to a financial analysis by the Internet portal "Sentido Común", published on January 6, 2010, Carlos Slim's fortune increased by 15.5 billion dollars to 74.5 billion, 26.3% more than the previous year.[17]​.

During 2008, Carlos Slim was the second richest man in the world, after Bill Gates.[18][19] However, the same Forbes magazine article[20]​ says that "Slim's fortune is in controversy, since he has managed to amass it in a country where the per capita income is 10,300 dollars per year (USD) and also 46.2 percent of the population[21]​ lives in poverty in 2015.[22]​.

This is how in this period various investments and acquisitions were made, among which Cigatam" (Philip Morris México), manufacturer of Marlboro cigarettes, stands out. This acquisition turned out to be the first and most important, given the cash flow it had and which allowed the group to have sufficient liquidity to take advantage of the opportunities that were occurring, thus expanding the purchase of important companies, including: Hulera El Centenario), Bimex, Hoteles Calinda") and Reynolds Aluminio"). Then he bought the share package of Seguros de México"), and thus would form what is today Grupo Financiero Inbursa, made up of the Casa de Bolsa Inversora Bursátil, Seguros de México and Fianzas La Guardiana"). It also bought: Artes Gráficas Unidas"), Fábricas de Papel Loreto y Peña Pobre"), as well as most of Sanborns and its subsidiary Denny's. It also acquired the company Minera FRISCO") and Empresas Nacobre"), as well as the tire companies Euzkadi&action=edit&redlink=1 "Euzkadi (company) (not yet written)") and General Tire.

In 1990 he acquired Telmex, along with France Telecom of France and SBC Telecomunicaciones" of the United States, the only company that provided fixed telephone services in Mexico (which was administered by the State until that time). Carlos Slim Helú bought Telmex during the privatizations of then President Carlos Salinas de Gortari. The sale was carried out through a public auction on December 9, 1990. One of the determining requirements was that the majority ownership remained in Mexican hands, and that is why, among the groups with Mexican share control, the largest was the one headed by Grupo Carso, whose majority partner is Carlos Slim. After the privatization of Telmex, some people commented that Slim bought under the price of the company was approximately 8.5 billion dollars; Slim and investors paid approximately 1.7 billion dollars, because they only bought 20 percent of Telmex.

It is also the owner of América Móvil, which is a very good example of value creation by a company, since, after having had 35,000 cellular customers when it was privatized (1990), América Móvil went on to have more than 170 million cellular subscribers in Latin America in 2008. Today, América Móvil is the fourth world operator with 170 million subscribers in Mexico and Latin America, only surpassed by China Mobile, Vodafone and China Telecom.

On March 12, 2007, the newspaper El Universal "El Universal (México)") published that «the Organization for Economic Cooperation and Development (OECD) confirmed today that telephone rates in Mexico continue to be among the highest of the thirty countries that make up that international organization. Furthermore, he maintained that in the country competition in the sector is 'insufficient' because Telefonos de México (Telmex), in fixed telephony, and Telcel, in mobile telephony, both owned by the Mexican Carlos Slim, maintain clearly dominant positions.

He carries out philanthropic work, either personally or through his multiple companies such as the Telmex Foundation"); the Soumaya Museum, owned by his wife Soumaya Domit de Slim (who died in 1999); the rescue of the Historic Center of Mexico City (historic center of the Federal District) and recently at the Alas Foundation"). Although in the case of the rescue of the Historic Center of Mexico City, according to some authors, it could be considered a gentrification process by Slim.[24]​.

In 2015 he was ranked number 15 of the most powerful people in the world according to Forbes magazine.[25] He was also considered the second richest man in the world; However, at the end of the year he had a drop of 22%, becoming the millionaire with the most losses in 2015.[26]​.

In 2017 he remained in the number 1 position in the ranking of the 100 most important businessmen in Mexico, published by Expansión Magazine.[27]​.

At the end of 2019, Slim's fortune used to place him in the sixth or seventh place among the richest men in the world, but in March 2020, due to different economic factors (including the exchange rate, several failed projects and COVID-19), he dropped to twelfth place. 2025, Carlos Slim, according to Forbes, has a fortune of 99.7 billion dollars, which places him as the nineteenth richest man in the world.[2]​.

Plaza Carso consists of offices of Carlos Slim's companies, a theater, shops and restaurants such as Sanborns, Telcel, and one of the most important Saks Fifth Avenue. Located in Mexico City, in Colonia Granada, next to the exclusive Plaza Antara. Since 2011, the Soumaya Museum has been open in Plaza Carso, where works of art and sculptures acquired by Slim are displayed for free.[30]​.

The first stage of Plaza Mariana was inaugurated near the Basilica of Guadalupe, which includes a museum, evangelization center, columbarium to deposit urns with ashes of the deceased, health center, market and parking. The construction of Plaza Mariana is being donated by Grupo Carso.[31][32]​.

Grupo Carso also built, in cooperation with Grupo Arco") (a group of Yucatecan businessmen "Yucatán (state)"), a shopping center in Villahermosa "Villahermosa (Tabasco)"), Tabasco "Tabasco (state)"), which is called Plaza Altabrisa.

In Bogotá Colombia, they are building the Plaza Claro business complex, which consists of offices, a shopping center, with VIP movie theaters (the only one of its kind in Colombia), and in its future phase housing, thus becoming the most modern business complex in South America, although according to some Colombian media without complying with legal permits.[33]​.

The businessman Slim Helú has been subject for decades to criticism of his monopolistic practices and exploitation of large public bidding projects.[34]​[35]​ The beginning of the magnate's empire can be traced to the acquisition and privatization of the then parastatal company Telefonos de México (Telmex), which the then president Carlos Salinas de Gortari sold to Carlos Slim, as part of the policies implemented by said government.[36]​[37]​[38]​.

The Mexican businessman Carlos Slim described the winners of the 2024 Nobel Prize in Economics as “imbeciles”, after they criticized the way in which the Mexican businessman forged his fortune.[39] According to his book "Why Countries Fail", the winners of the Nobel Prize in Economics accused Slim of engaging in "buddy capitalism", in addition to the fact that he did not become a billionaire by launching innovative projects, but by stock market businesses and by buying and updating companies that were not profitable.[39]​.

The businessman is also a supporter and sponsor of the Catholic organization the Legionaries of Christ. Slim maintained a very good relationship with the priest Marcial Maciel and his businesses, one of the most infamous and recognizable pedophiles within the Catholic hierarchy.[40][41]​.

Carlos Slim has also been accused of the accident involving the collapse of line 12 of the Mexico City metro in May 2021.[42]​ With 27 dead and 80 injured, the accident is positioned as the most tragic in the history of the Mexico City metro system. The evidence of various expert reports showed that the accident was caused by the deficient and negligent construction of the elevated section, by the company Carso Infraestructura y Construction (CICSA),[43]​[44]​[45]​ belonging to the civil engineer Carlos Slim. Various media have accused the city government as well as the president of Mexico of protecting the magnate during the aftermath,[44]​[46]​[47]​ even obstructing the investigations of the Norwegian consulting firm DNV, which was commissioned and then removed by the city government to carry out independent expert reports.[48]​ In an extralegal pact with President Andrés Manuel López Obrador, businessman Slim promised to pay for the repairs of the work and compensate the relatives of the victims in exchange for obtaining their silence in court.[49]​[47][50]​.

Meanwhile, the same subsidiary construction company of Grupo Carso is part of the public contracts for the construction of the controversial Mayan Train, one of the flagship projects of the government of Andrés Manuel López Obrador.[51]​.

Through

Carlos Slim and his family have a majority shareholding in América Móvil, Grupo Carso and Grupo Financiero Inbursa. These three are the most important companies in the businessman's portfolio, due to their high market capitalization. However, the Slim family also has significant ownership interests in other companies, including:.

Slim is a widower and has six children: Carlos, Marco Antonio"), Patricio"), Soumaya, Vanessa and Johanna. Three of them (Carlos, Marco Antonio and Patricio) manage their father's businesses. His wife, Soumaya Domit, died on March 7, 1999.[16]​.

According to a financial analysis by the Internet portal "Sentido Común", published on January 6, 2010, Carlos Slim's fortune increased by 15.5 billion dollars to 74.5 billion, 26.3% more than the previous year.[17]​.

During 2008, Carlos Slim was the second richest man in the world, after Bill Gates.[18][19] However, the same Forbes magazine article[20]​ says that "Slim's fortune is in controversy, since he has managed to amass it in a country where the per capita income is 10,300 dollars per year (USD) and also 46.2 percent of the population[21]​ lives in poverty in 2015.[22]​.

This is how in this period various investments and acquisitions were made, among which Cigatam" (Philip Morris México), manufacturer of Marlboro cigarettes, stands out. This acquisition turned out to be the first and most important, given the cash flow it had and which allowed the group to have sufficient liquidity to take advantage of the opportunities that were occurring, thus expanding the purchase of important companies, including: Hulera El Centenario), Bimex, Hoteles Calinda") and Reynolds Aluminio"). Then he bought the share package of Seguros de México"), and thus would form what is today Grupo Financiero Inbursa, made up of the Casa de Bolsa Inversora Bursátil, Seguros de México and Fianzas La Guardiana"). It also bought: Artes Gráficas Unidas"), Fábricas de Papel Loreto y Peña Pobre"), as well as most of Sanborns and its subsidiary Denny's. It also acquired the company Minera FRISCO") and Empresas Nacobre"), as well as the tire companies Euzkadi&action=edit&redlink=1 "Euzkadi (company) (not yet written)") and General Tire.

In 1990 he acquired Telmex, along with France Telecom of France and SBC Telecomunicaciones" of the United States, the only company that provided fixed telephone services in Mexico (which was administered by the State until that time). Carlos Slim Helú bought Telmex during the privatizations of then President Carlos Salinas de Gortari. The sale was carried out through a public auction on December 9, 1990. One of the determining requirements was that the majority ownership remained in Mexican hands, and that is why, among the groups with Mexican share control, the largest was the one headed by Grupo Carso, whose majority partner is Carlos Slim. After the privatization of Telmex, some people commented that Slim bought under the price of the company was approximately 8.5 billion dollars; Slim and investors paid approximately 1.7 billion dollars, because they only bought 20 percent of Telmex.

It is also the owner of América Móvil, which is a very good example of value creation by a company, since, after having had 35,000 cellular customers when it was privatized (1990), América Móvil went on to have more than 170 million cellular subscribers in Latin America in 2008. Today, América Móvil is the fourth world operator with 170 million subscribers in Mexico and Latin America, only surpassed by China Mobile, Vodafone and China Telecom.

On March 12, 2007, the newspaper El Universal "El Universal (México)") published that «the Organization for Economic Cooperation and Development (OECD) confirmed today that telephone rates in Mexico continue to be among the highest of the thirty countries that make up that international organization. Furthermore, he maintained that in the country competition in the sector is 'insufficient' because Telefonos de México (Telmex), in fixed telephony, and Telcel, in mobile telephony, both owned by the Mexican Carlos Slim, maintain clearly dominant positions.

He carries out philanthropic work, either personally or through his multiple companies such as the Telmex Foundation"); the Soumaya Museum, owned by his wife Soumaya Domit de Slim (who died in 1999); the rescue of the Historic Center of Mexico City (historic center of the Federal District) and recently at the Alas Foundation"). Although in the case of the rescue of the Historic Center of Mexico City, according to some authors, it could be considered a gentrification process by Slim.[24]​.

In 2015 he was ranked number 15 of the most powerful people in the world according to Forbes magazine.[25] He was also considered the second richest man in the world; However, at the end of the year he had a drop of 22%, becoming the millionaire with the most losses in 2015.[26]​.

In 2017 he remained in the number 1 position in the ranking of the 100 most important businessmen in Mexico, published by Expansión Magazine.[27]​.

At the end of 2019, Slim's fortune used to place him in the sixth or seventh place among the richest men in the world, but in March 2020, due to different economic factors (including the exchange rate, several failed projects and COVID-19), he dropped to twelfth place. 2025, Carlos Slim, according to Forbes, has a fortune of 99.7 billion dollars, which places him as the nineteenth richest man in the world.[2]​.

Plaza Carso consists of offices of Carlos Slim's companies, a theater, shops and restaurants such as Sanborns, Telcel, and one of the most important Saks Fifth Avenue. Located in Mexico City, in Colonia Granada, next to the exclusive Plaza Antara. Since 2011, the Soumaya Museum has been open in Plaza Carso, where works of art and sculptures acquired by Slim are displayed for free.[30]​.

The first stage of Plaza Mariana was inaugurated near the Basilica of Guadalupe, which includes a museum, evangelization center, columbarium to deposit urns with ashes of the deceased, health center, market and parking. The construction of Plaza Mariana is being donated by Grupo Carso.[31][32]​.

Grupo Carso also built, in cooperation with Grupo Arco") (a group of Yucatecan businessmen "Yucatán (state)"), a shopping center in Villahermosa "Villahermosa (Tabasco)"), Tabasco "Tabasco (state)"), which is called Plaza Altabrisa.

In Bogotá Colombia, they are building the Plaza Claro business complex, which consists of offices, a shopping center, with VIP movie theaters (the only one of its kind in Colombia), and in its future phase housing, thus becoming the most modern business complex in South America, although according to some Colombian media without complying with legal permits.[33]​.

The businessman Slim Helú has been subject for decades to criticism of his monopolistic practices and exploitation of large public bidding projects.[34]​[35]​ The beginning of the magnate's empire can be traced to the acquisition and privatization of the then parastatal company Telefonos de México (Telmex), which the then president Carlos Salinas de Gortari sold to Carlos Slim, as part of the policies implemented by said government.[36]​[37]​[38]​.

The Mexican businessman Carlos Slim described the winners of the 2024 Nobel Prize in Economics as “imbeciles”, after they criticized the way in which the Mexican businessman forged his fortune.[39] According to his book "Why Countries Fail", the winners of the Nobel Prize in Economics accused Slim of engaging in "buddy capitalism", in addition to the fact that he did not become a billionaire by launching innovative projects, but by stock market businesses and by buying and updating companies that were not profitable.[39]​.

The businessman is also a supporter and sponsor of the Catholic organization the Legionaries of Christ. Slim maintained a very good relationship with the priest Marcial Maciel and his businesses, one of the most infamous and recognizable pedophiles within the Catholic hierarchy.[40][41]​.

Carlos Slim has also been accused of the accident involving the collapse of line 12 of the Mexico City metro in May 2021.[42]​ With 27 dead and 80 injured, the accident is positioned as the most tragic in the history of the Mexico City metro system. The evidence of various expert reports showed that the accident was caused by the deficient and negligent construction of the elevated section, by the company Carso Infraestructura y Construction (CICSA),[43]​[44]​[45]​ belonging to the civil engineer Carlos Slim. Various media have accused the city government as well as the president of Mexico of protecting the magnate during the aftermath,[44]​[46]​[47]​ even obstructing the investigations of the Norwegian consulting firm DNV, which was commissioned and then removed by the city government to carry out independent expert reports.[48]​ In an extralegal pact with President Andrés Manuel López Obrador, businessman Slim promised to pay for the repairs of the work and compensate the relatives of the victims in exchange for obtaining their silence in court.[49]​[47][50]​.

Meanwhile, the same subsidiary construction company of Grupo Carso is part of the public contracts for the construction of the controversial Mayan Train, one of the flagship projects of the government of Andrés Manuel López Obrador.[51]​.

Through

Carlos Slim and his family have a majority shareholding in América Móvil, Grupo Carso and Grupo Financiero Inbursa. These three are the most important companies in the businessman's portfolio, due to their high market capitalization. However, the Slim family also has significant ownership interests in other companies, including:.