Cafarelli Bill
Cameron Neil W.
Carlson David Helmer
Carnaggio Frank S.
Carroll Paul Ellington
Carvill Charles V.
CGG Marine
Chambers Ronald E.
Chambers Ronald Edward
Chang Win
Charvoz David C.
Christensen Elmo W.
Christie Philip A. F.
Cole Jimmy R.
Cole, Jr. Jim R.
Compagnie General de Geophysique
Concept Systems Limited
Concord Technologies Inc.
Concord Technologies L.L.P.
Concord Technologies, L.P.