Schlumberger Limited is now the world's largest oilfield services company. Schlumberger employs approximately 123,000 people representing more than 140 nationalities working in more than 85 countries. Its principal offices are in Houston, Paris, and the Hague.
1926 Schlumberger was founded by French brothers Conrad and Marcel Schlumberger as the Société de Prospection électrique.
In the UK
1962 Bought Daystrom including Heathkit
1975 Bought Solartron Electronic Group
1983 Opened the Cambridge Reseach Centre and renamed in 2012 as the Schlumberger Gould Research Center
1993 Sold Solarton to a management buyout