Graham Peter Mayhew

Part of TGS ASA, Spectrum Geo Ltd. is a British company that provides data processing, multi-client and offshore acquisition services. The company is based in London, UK and was founded in 1986.

Spectrum Energy & Information Technology Ltd. provides seismic data processing and electronic data management services. It also provides non-exclusive surveys, 2D and 3D seismic data processing and electronic data management services for oil and gas exploration companies. The company was founded in 1985 and is headquartered in London, the United Kingdom.