It's a $2 trillion (nearly €1.8 trillion) riddle. Since April 23, Marguerite Bérard, 47, former head of the bank BNP Paribas's branch network, has been leading the Dutch bank ABN Amro. What is the common thread between this institution and the 30 groups we're about to list?

Let's begin with six iconic American brands: Estée Lauder, Ralph Lauren, Tory Burch, Michael Kors, Neutrogena and the department store chain Bloomingdale's. Add seven pharmaceutical champions: AstraZeneca, UCB, LEO Pharma, Takeda, Moderna, Kenvue and Incyte. Continue with the German Nivea-Beiersdorf, Swiss Nestlé, Italian insurer Generali, Belgian military and industrial equipment manufacturer John Cockerill, Swiss temporary work agency Adecco, British retail companies Kingfisher and JD Sports, Finnish elevator and escalator company Kone and the Dutch company ASML, without which no European electronic microchips would ever be printed. Let's also mention two well-known tech companies: Expedia, which runs online travel agencies (including Hotels.com and Vrbo), and Instacart, the leading grocery delivery service in the United States. Finally, several "unicorns" (start-ups valued at over 1 billion dollars or euros): Datadog, Snowflake, F5, Front, Upgrade, Hugging Face, Deel and more.

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