Affiliate Companies

OYO affiliate companies all specialize in various aspects of geophysical engineering and subsurface exploration. It's likely that you could use complimentary products or services from each of our companies on one project!

OYO Corporation Head Office
2-6 Kudan-kita 4-chome, Chiyoda-ku, Tokyo 102-0073, Japan
T +81 3 3234.0811 F +81 3 3263.6854

OYO Instruments Business Headquarters
243 Miyukigaoka, Tsukuba Ibaraki 305-0841, Japan
T +81 298515078 F +81 298517290

Geophysical Survey Systems, Inc. (GSSI)
Ground Penetrating Radar Systems
12 Industrial Way, Salem NH 03079 U.S.A.
T: +1 603.893.1109 F: +1 603.889.3984

Kinemetrics, Inc.
Seismometers, Data acquisition systems, and Seismic Observation Systems
222 Vista Avenue, Pasadena CA 91107 U.S.A.
T: +1 626.795.2220 F: +1 626.795.0868

Robertson Geologging Limited (RG)
Borehole Logging Systems
Deganwy, Conwy, LL31 9PX, U.K.
T: +44 149.258.2323 F: +44 149.258.2322

IRIS Instruments, Sas. (Affiliate)
Resistivity Measurement System
1 avenue Buffon BP 16007-45060 Orleans Cedex 2, France
T: +33 238638100 | F: +33 238638182