Velseis Pty. Ltd. has an extensive client list which includes the following companies:
AGL Petroleum
Allied Indo Coal
Amoco Petroleum
Anglo Coal Australia Pty. Ltd.
Bass Petroleum
BHP Australia Coal (now BHP Billiton)
BHP Minerals
BHPAC
BMA Coal (BHPB Mitsubishi Alliance)
British Petroleum Company
Carnarvon Petroleum
Coal Operations Australia Ltd.
Chevron (now Chevron Texaco)
Conoco Exploration
CRA
Curragh Coal
Drayton Coal Australia Pty. Ltd.
Dyad Petroleum
DIA Consultants Co. Ltd.>
Electricity Generating Authority of Thailand
Esso (now Exxon Mobil)
German Creek Coal
Golder Associates
Grasstree Development Ltd.
Gutteridge Haskin & Davey
Ingwe Coal Corporation
Japex Geoscience Institute Inc.
Japan Technical cooperation Centre for Coal Resource Development
Kembla Coal & Coke
Kinhill Engineers (now Brown & Root)
Lasmo Oil Australia Limited
MacArthur Coal
Magellan Petroleum
MIM Exploration
MIM Petroleum (now Santos Asia Pacific)
Minyango Resources NL
Mitsubishi Gas Chemical Resources Australia
Mobil Oil Australia
Moranbah North Coal
Mosaic Oil Limited
North Goonyella Coal Ltd.
Oaky Creek Coal Ltd.
Powercoal Pty. Ltd.
Santos Asia Pacific
Southland Colliery
Newlands Coal Ltd.
Oil Company of Australia
Portman Mining
PPK Consultants
PT Adaro Indonesia
PT Jorong Barutama Greston
PT Nusantara Thai Mining Services
Santos Limited
Savage Resources
Shell Coal Australia (now Anglo Coal Australia)
Shell Minerals
Thiess Contractors
Trans Natal
Western Mining Corporation
Victoria Petroleum