Schlumberger NV, doing business as SLB, also known as Schlumberger Limited, is a global technology company. As of 2022, it is both the world's largest oilfield services company and the world's leader in digital solutions for subsurface and surface engineering. Schlumberger is incorporated in Willemstad, Curaçao, Netherlands Antilles. and trades on the New York Stock Exchange, Euronext Paris, the London Stock Exchange and SIX Swiss Exchange. Its principal executive offices are located in Houston, Texas. In 2022, the Forbes Global 2000 ranked SLB the 349th largest company in the world. Wikipedia