Attached files

file filename
10-K - 10-K - ION GEOPHYSICAL CORPio-12312015x10k.htm
EX-32.2 - EXHIBIT 32.2 - ION GEOPHYSICAL CORPio-12312015x10kex322.htm
EX-31.1 - EXHIBIT 31.1 - ION GEOPHYSICAL CORPio-12312015x10kex311.htm
EX-23.2 - EXHIBIT 23.2 - ION GEOPHYSICAL CORPa1012312015-10k232ey.htm
EX-32.1 - EXHIBIT 32.1 - ION GEOPHYSICAL CORPio-12312015x10kex321.htm
EX-31.2 - EXHIBIT 31.2 - ION GEOPHYSICAL CORPio-12312015x10kex312.htm
EX-23.1 - EXHIBIT 23.1 - ION GEOPHYSICAL CORPio-1231x2015x10k231gt.htm


    

EXHIBIT 21.1

SUBSIDIARIES OF ION GEOPHYSICAL CORPORATION
as of 12/31/15

Subsidiary
   Jurisdiction
 
 
Beijing ION Geophysical Co., Ltd.
China
Concept Systems Holdings Limited
Scotland
Concept Systems Limited
Scotland
GMG/AXIS, Inc.
Delaware
GX Technology Australia Pty Ltd.
Australia
GX Technology Canada, Ltd.
Canada
GX Technology Corporation
Texas
GX Technology EAME, Limited
UK
GX Technology Imaging Services Limited
Egypt
GX Technology Poland Sp. Z o.o.
Poland
GX Technology Processamento de Dados Ltda.
Brazil
GX Technology Sismica Brasil Ltda.
Brazil
GX Technology Trinidad, Ltd.
West Indies
I/O Cayman Islands, Ltd.
Cayman Islands
I/O International, Ltd.
Cayman Islands
I/O International Holdings, Ltd.
Cayman Islands
I/O Luxembourg S.à r.l.
Luxembourg
I/O Marine Systems Limited
UK
I/O Marine Systems, Inc.
Louisiana
I/O U.K., LTD.
UK
I/O U.K. Holdings Limited
Scotland
“Inco” Industrial Components ‘s-Gravenhage B.V.
Netherlands
Input/Output Canada, Ltd.
Canada
ION China Holdings, Limited
Hong Kong
ION Exploration Products (U.S.A.), Inc.
Delaware
ION Geophysical CIS LLC
Russia
ION Geophysical Sdn. Bhd.
Malaysia
ION International Holdings L.P.
Bermuda
ION International S.à r.l.
Luxembourg
ION International Sales Limited
Cyprus
IPOP Management, Inc.
Delaware
OceanGeo B.V.
Netherlands
Oceangeo Tecnologia de Exploração de Reservatórios do Brasil S.A
Brazil
OceanGeo Inc.
British Virgin Islands
Sensor Nederland B.V.
Netherlands