France’s CAC 40—the benchmark index for the biggest companies listed in Paris—still carries the aura of national champions. But the ownership behind many of those household names is shifting: founding families are holding smaller stakes, while international investment funds, mostly American, are taking up more space on shareholder registers.
The question of “who owns France’s largest companies” sounds straightforward. Inside the CAC 40, it’s increasingly complicated. As companies restructure, go public, or change governance, family shareholders have gradually lost ground, and the index’s makeup has tilted toward firms with more widely dispersed ownership—an open door for large asset managers.
That trend is reinforced by the way the CAC 40 itself changes over time. In December 2024, certification and inspection group Bureau Veritas joined the index after a decision by Euronext’s index committee, landing alongside companies with very different capital structures.
Bureau Veritas joined the CAC 40 in December 2024
Bureau Veritas’ entry became effective on December 20, 2024 [2]. The company—listed in Paris under the symbol BVI—now appears in several benchmarks: the CAC 40, CAC 40 ESG and SBF 120, as well as the CAC SBT 1.5°.
The index inclusion has run alongside a strategy the company has branded “LEAP 28,” which the article describes as focused on sustainability and organic growth.
Another recent move among major Paris-listed names: Groupe ADP, the operator of Paris-area airports, was added to the CAC Next 20 and the CAC 40 ESG on September 12, 2024 [4]. The step positions the company ahead of a possible future entry into the CAC 40 itself.
The group operates under an economic regulatory framework, with the next version expected in 2027.
ENGIE posted €73.8 billion in 2024 revenue
Among the CAC 40’s long-standing heavyweights, energy group ENGIE remains one of the largest. The company reported 2024 revenue of €73.8 billion (about $79.7 billion) [5] and appears in major global market indexes including the CAC 40, Euronext 100, FTSE Euro 100 and MSCI Europe.
ENGIE is also included in non-financial indexes, reflecting what the article describes as a dual market pressure: financial performance alongside ESG criteria.
The ownership question remains central. The French state is still a reference shareholder in several CAC 40 flagships, including ENGIE. But the underlying decade-long direction, the article says, is a gradual dilution of family or public blocks in favor of Anglo-Saxon asset managers.
Legrand illustrates the other end of the spectrum. The electrical equipment group—described as the only CAC 40 company headquartered in Nouvelle-Aquitaine in southwestern France [1]—employs 37,000 people worldwide and remains controlled by stable shareholders.
More broadly, the CAC 40’s selection rules—based on free-float market capitalization and trading volumes—mechanically favor companies with the most dispersed ownership, making them easier for funds to buy. Over time, that logic reduces the role of tightly concentrated control structures.
