Xavier Niel Net Worth 2026

In 1987, after dropping out of college at the age of 19, Niel founded his first company, which operated services on Minitel, the French videotex network that predated the World Wide Web. The company specialized in adult chat services. To operate legally, Niel acquired publishing licenses, a regulatory framework originally intended for newspapers and magazines, and used them to become a registered Minitel service provider. He has said that the business made him a millionaire, in today's euros and dollars, by the age of 24.^[11][12]

During the same period, Niel and businessman Fernand Develter invested in a number of Paris-based peep-show establishments. Some of these businesses later became the subject of criminal investigations, and certain managers were convicted on charges related to procuring. According to press reports, the investigations concerned activities involving direct physical contact between clients and sex workers. These proceedings did not target Niel personally, although his investments in the sector attracted media attention.^[13]

As a teenager, Niel hacked Canal+ television decoders. After being identified by police, he was summoned to the French Ministry of the Interior rather than prosecuted. According to the investigative biography Xavier Niel: La voie du pirate, officers from the Direction de la surveillance du territoire, France's domestic intelligence agency at the time, offered him a choice between criminal prosecution and cooperation. He chose the latter and spent several months working with the agency, helping monitor Soviet activity on French telecommunications networks.^[14][15]

During the same period, Niel gained access to the Radiocom 2000 mobile telephone network, then used by French government officials, and obtained the phone numbers assigned to 84 official vehicles, including one used by President François Mitterrand. Le Monde reported the incident at the time, identifying the hacker only as a 20-year-old computer specialist. Niel later confirmed publicly that he was responsible.^[16]

After his early activities in the Minitel sector, Xavier Niel became involved in the emerging internet industry. In 1995, he invested in Worldnet, one of France’s first consumer internet service providers. The company was sold in 2000 for approximately €40 million, shortly before the collapse of the dot-com bubble^[17].

In 1999, Niel founded the telecommunications group Iliad and launched Free, an internet service provider. In 2002, Free introduced a broadband offer priced at €29.99 per month and launched the Freebox, combining internet access, television and telephone services in a single package^[18].

In 2012, Iliad entered the French mobile market with the launch of Free Mobile. Its flagship plan, which included unlimited calls, unlimited text messages and mobile data for €19.99 per month, was priced significantly below comparable offers from the three incumbent operators. The launch intensified competition in the French mobile market and was followed by substantial price reductions across the sector^[19].

From the late 2010s onwards, Niel expanded his telecommunications interests outside France. In 2018, Iliad Italia launched operations in Italy with a mobile plan priced at €5.99 per month^[20]. In 2020, the group acquired the Polish operator Play, one of the country’s largest mobile operators^[21].

Through his investment vehicle NJJ, Niel also acquired or invested in telecommunications operators in Monaco (Monaco Telecom)^[22], Switzerland (Salt)^[23], Ireland (eir)^[24], Cyprus (Epic Cyprus)^[25], Malta (Epic Malta)^[26] and Ukraine (Lifecell)^[27]. In 2023, NJJ became the largest shareholder of Millicom (42% stake), a telecommunications group operating on 12 markets in Latin America^[28]. Niel subsequently made two unsuccessful attempts to acquire the company outright^[29].

In 2026, Xavier Niel became Vodafone’s largest shareholder after acquiring Etisalat’s 16.2% stake for approximately $6 billion through his family investment vehicle Vega^[30].

Since 2020, Niel has been acquiring shares in the real estate company Unibail-Rodamco-Westfield, as of 2024 he was owning 25% of the shares of the company.^[31] Unibail-Rodamco-Westfield has an international presence in Europe (France, Spain, UK, Germany) and in the United States in California (Westfield Topanga, Westfield Century City).

In late 2010, along with Pierre Bergé and Matthieu Pigasse, Niel acquired a controlling stake in Groupe Le Monde which edits the daily newspaper Le Monde but also magazines such as l’Obs, Courrier International and Télérama.^[32] In February 2020, Niel acquired through his personal holding 100% of Groupe Nice-Matin, which edits the newspapers Nice-Matin, Var-Matin and Monaco-Matin. The group also own an 11% stake in La Provence.^[33][34] In March 2020, he acquired France-Antilles, a daily newspaper in the French West Indies.^[35] In June 2020, Niel acquired Paris-Turf which is France's first horseracing newspaper.^[36]

In March 2010, Niel cofounded with Jeremie Berrebi Kima Ventures,^[37] a fund dedicated to invest in 50 to 100 startups a year everywhere in the world. Kima Ventures already invested in 330 companies from February 2010 to August 2014 in 32 countries. Business Insider described Niel and Jeremie Berrebi as almost certainly the most active angel investors in the world.^[38] Since 2015, Jean de La Rochebrochard is the Managing Partner of the fund.^[39][40]

In 2013, Niel created a school named 42, which is a free technical school with no teachers, no books, no tuition for 1000 people every year.^[41] As of 2021, 33 campuses have been opened in the world.^[42]

In June 2017, Niel welcomed the French President Emmanuel Macron for the inauguration of Station F, a business incubator for startups located in Paris, known as the largest in the world.^[43]

In April 2023, Niel was part of an investor group that announced that it had bought the Swiss asset manager GAM.^[44]

In October 2023, Niel together with Rodolphe Saadé, Eric Schmidt, and other investors announced a €200 million investment in artificial intelligence which includes "the purchase of a supercomputer and the creation of a dedicated research laboratory," later named Kyutai.^[45][46] Prior to that, he was a seed investor in Mistral AI.^[47]

In 2015, Niel cofounded Mediawan, an international production and distribution group, together with Matthieu Pigasse and Pierre-Antoine Capton.^[48]

In 2016, Niel founded Art 42, a street-art gallery self-described as an "anti-museum" inside the Paris campus of 42.^[49][50]

Niel joined the board of US investment firm Kohlberg Kravis Roberts in March 2018 and the board of TikTok's parent company, ByteDance, in September 2024.^[51][52]

His book "Une Sacrée Envie de Foutre le Bordel" ("An Urge to Make a Mess"), co-written by former Paris deputy mayor Jean-Louis Missika [fr] was published in 2024 by Groupe Flammarion.^[53][54]