L'Air Liquide S.A. (AI.PA) Stock Analysis & Winston Score

L'Air Liquide is a French company that makes and delivers industrial gases — things like oxygen, hydrogen, nitrogen, and helium. These gases are sold to hospitals, factories, semiconductor makers, food producers, and energy companies. It is one of the largest industrial gas companies in the world, operating in over 70 countries. The company makes money by selling gases either through long-term supply contracts piped directly to large industrial customers, or through smaller cylinders and tanks delivered to businesses and healthcare facilities. This contract-heavy model creates sticky, recurring revenue and makes it hard for customers to switch suppliers — a strong competitive moat. Air Liquide is also investing heavily in clean hydrogen as a future energy source, which could be a significant growth driver, though the timeline and profitability of hydrogen infrastructure remain uncertain.