GBG Group has been delivering geophysical consultations, services and investigations since 1982. Initially established in Cambridge, UK, the company has since expanded to Sydney, Melbourne and Perth in Australia, and to L.A. and New York in the USA.

We operate within three main industries:

Geotechnical Engineering

Detailed mapping for construction, land development and risk assessments are essential for the engineering designs of tailings dams, residential developments, road design and other types of construction. Our projects even extend to marine environments. Defining the geotechnical parameters prior to construction or locating areas of soil deconsolidation is a service that we have been increasingly providing over recent years.

Environmental Engineering

The natural environment and proposed developments are assessments that need to be undertaken for the safety of the environment and its inhabitants. From risk assessments of old or decommissioned areas to the mapping of tree roots, the techniques that we employ can assess the extent of potential leakages from landfills to locating mine shafts and workings.

Non-Destructive Investigations

While invasive techniques are typically used to assess the internal condition of structures, NDT investigations are growing to be part and parcel with the maintenance of an engineered structure. NDT methods can be carried out on a wide range of building materials including concrete, masonry, timber and asphalt.

To add value to any project we take on, we bring quality, integrity and adaptability to our work to ensure that the client gets the most out of the geophysical services we offer. We have spanned our services from a single pre-stressing strand in a concrete slab to mine-scale exploration geophysics.


GBG Australia originally began as a joint venture with CMPS&F and GHD before becoming a standalone company in 2003.

Over the next 15 years, GBG Australia grew to became the largest geophysical consultancy on the East Coast of Australia.

They have employed engineers and geophysicists of extensive experience, and have provided advanced tailored investigation solutions for geotechnical and environmental investigations and non-destructive investigations of structures for a wide variety of clients from all industries.

GBG Australia has now expanded into the GBG Group with an office in Perth since 2008 and experience across the world, especially in the Asia-Pacific Region.


Scott Anderson - Director

Joining McMullen Nolan Group in 1990 as a graduate surveyor before rising to leadership roles within the company's Surveying Operations and Land Development divisions, Scott was appointed to the Board of McMullen Nolan Group in 2002.

Since then, Scott has acted as one of MNG's leading administrators, focusing on office based management roles concerning staff and high-end project management.

Scott is currently Chief Executive Officer / Managing Director of McMullen Nolan Group.

Simon Williams - Director

BSc. Geology / Geophysics, with over twenty years professional experience in geophysical consultancy. Simon is responsible for the management of Australian based operations of GB Geotechnics Group of companies including GBGMAPS.

His role with GBGMAPS includes providing expert advice and quality assurance, as well as assisting with tender writing and projects when required.

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