Gentles William M.
Gentry Glenn A.
Gentry J. Michael
Geo Drilling Fluids
Geo Seitz GmbH und Co.
Geo-Form, Inc.
Geo. W. Bollman & Co., Inc.
Geochto Ltd.
Geoffroy David P.
George Albert E.
George Albert L.
George Kenneth P.
Georges Moatti
Georgiades Jerzy
Geoscience Support Services Inc.
Geostock S.A.R.L. and ESYS S.A.
Geotech Development Corporation
Geppert Carl F.
Geppert Helmut Gunther-Heinz
Geppert Theodore R.