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Operating for over a decade with clients all around the world.

We mean business. 


Shown is modelling from a single line of dipole-dipole IP (400m TX and 200m RX). The data is measured time domain IP data (TX Frequency ~ 1/20th Hz).


GRS has worked alongside some of the biggest players in the industry, names of the like of Rio Tinto, BHP and Newcrest.

Whether it’s an industry  goliath or a small start-up, GRS is always willing to put our best foot forward and work tirelessly with our clients.  

Terry Ritchie - Director

Terry is a senior geophysicist and one of the leading coal geophysicists in the country. Terry ‘s input into establishing seismic as a cost-effective planning tool with the Queensland Bowen Basin coal industry has been significant. He provides mines with advice, recommendations and strategies for engaging geophysical solutions to mine technical issues with a focus on reducing operational risk. 

Peter Rowston - Principal Geophysicist

B. App. Sc. (First Class Hons), ASEG Peter has over twenty years of experience in mineral and oil exploration on five continents. He was involved in designing and developing the MIMDAS system and is proficient in the usage of all geophysical techniques likely to be used in base-metal exploration.He is primarily an electrical methods specialist, specifically in the usage of Induced Polarisation, Electromagnetics and Magnetotellurics.

Jonathan Turley - Senior geophysicist

Director B. App. Sc. (First Class Hons), ASEG Terry Ritchie feels that writing a short biography about himself is uneccessary, and hence, will have his name attached to this shameless filler until he notices what has happened. Or indeed, he won’t notice, and the filler will remain; a small speck on the canvas of what is otherwise a quality outfit whose attention to detail is usually unrivalled.

Uthai Inthisaen -geophysicist

Senior Geophysicist B. Sc. (Geophysics) Uthai has extensive experience in all areas of electrical geophysics. In various operating and supervising geophysicist roles he has contributed to multiple projects across North Asia (China, Mongolia), South East Asia (Thailand, Vietnam, Cambodia, Philippines) and Australia.

What our cUSTOMERS say

“You guys are so great at what you do. I definitely will recommend your awesome services to everyone.”

Jane Smith | Director, Big Company

“Dude, your services are awesome. With your help my business is now on the right track. Thank you! I am now your customer for life. ”

John | CEO, D Company


Unit 1, 80 Ebbern Street, Darra, QLD 4076

PO Box 3371, Darra, QLD 4076

+61 (0)7 3279 0111


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