NJJ is a French holding company controlled by

Xavier Niel Xavier Niel (; born 25 August 1967) is a French billionaire businessman. He is involved in the telecommunications and technology industry and is the founder and majority shareholder of the French Internet service provider and mobile operator Il ...

that owns numerous companies. The company's main activities are in

telecommunications Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of ...

, real estate and the press, notably through its stakes in Salt Mobile, Eir,

Unibail-Rodamco-Westfield Unibail-Rodamco-Westfield SE (previously Unibail-Rodamco SE) is a European multinational commercial real estate company headquartered in Paris, France, and is the owner and operator of Westfield shopping centres in the northern hemisphere. It ...

and Nice-Matin. The holding company, which takes its name from “Niel John Jules”, the two given names of Xavier Niel's sons, has numerous subsidiaries - at least 25 at one time.

Holdings

* Monaco Telecom in Monaco, Cyprus and Malta (55%), acquired in 2014 *

Salt In common usage, salt is a mineral composed primarily of sodium chloride (NaCl). When used in food, especially in granulated form, it is more formally called table salt. In the form of a natural crystalline mineral, salt is also known as r ...

in Switzerland (100%), acquired in 2014 * Eir in Ireland (32.9%), acquired in 2017.

Iliad The ''Iliad'' (; , ; ) is one of two major Ancient Greek epic poems attributed to Homer. It is one of the oldest extant works of literature still widely read by modern audiences. As with the ''Odyssey'', the poem is divided into 24 books and ...

, another

company, has held an additional 31.6% since 2017 * Yas Senegal (40%), acquired in 2018 and sold in 2023 to Axian Telecom *

Millicom Millicom International Cellular SA is a Luxembourgish fixed line and mobile telecommunications services provider operating in Latin America operating under the Tigo brand. Its main shareholder is Xavier Niel, a French billionaire who owns 40% of ...

in Latin America (40%), partially acquired in 2022 and additional shares in 2023 and 2024 *

Proximus Proximus (formerly known as Belgacom Mobile) is the largest of Belgium's three mobile telecommunications companies and is a part of Proximus Group (previously Belgacom Group). It competes with Orange Belgium and Base. History Proximus was f ...

in Belgium (6%), acquired in 2023 * Datagroup-Volia-Lifecell in Ukraine (85%), acquired in 2024 *

(25.5%), acquired in 2020 *

Groupe Le Monde (previously known as ) or ''Société éditrice du Monde'' is a French mass media company that publishes newspaper. Their headquarters are located in Paris, France. History Before the end of the year 2006, the group La Vie-Le Monde, majority ...

, partially acquired in 2010 then additional shares in 2023

References

Holding companies {{French-company-stub