Weinhold Peter
Weir William L.
Weise Jon
Weiss Thomas R.
Weiss William R.
Welch Robert B.
Wellner Friedrich
Wells Arthur D.
Wells Leigh D.
WellSonic LC
Wen Weijia
Wendel Richard C.
Wendt Sit GmbH
Wennerstrom Karl Filip
Werblud Marc S.
West Philip J.
Westaflex Tubes Flexiveis, Ltda.
Westech Geophysical, Inc.
Westermark Robert Victor
Western Geophysical Co.