About SFGEO
SFGEO is a Sydney-based boutique geotechnical consultancy offering practical, independent advice across residential, commercial, industrial, and infrastructure projects. After hearing the same frustrations from clients time and again, we founded SFGEO to offer something better, a responsive, independent service focused on clarity, speed, and real solutions.
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Our clients work directly with experienced professionals who understand both the technical detail and the realities on site. From soil investigations and site classifications to foundation design advice and construction-phase support, we provide tailored guidance you can rely on, when and where you need it. As a truly independent consultancy, we’re not tied to in-house testing labs or commercial incentives.
Our focus is clear, sound advice, fast turnaround, and cost-effective outcomes that support your project at every stage. We meet all industry and regulatory standards for geotechnical services in New South Wales and take pride in delivering dependable, client-focused support from soil to structure.
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Why choose SFGEO?
Local — Sydney-based, family-owned consultancy
Experienced — Residential, commercial, and infrastructure expertise
Independent — No external ties or internal labs, just honest, conflict-free advice
Responsive — Clear communication and same-day mobilisation when needed
Value — Premium service without inflated fees
Compliant — Fully insured, code-compliant, and professionally accredited
Planning to build your dream home or managing a project? Click here to get in touch and see how SFGEO can help.​​​
Australian Geomechanics Society
Engineer Australia
Fully Insured – PI & PL
SFGEO Team
Alli Atmar - Principal Consultant
As the founder and principal consultant at SFGEO, bringing over 15 years of construction industry experience in different capacities such as structural engineering and geotechnical consulting. His background spans residential, commercial, infrastructure, and government projects, with hands-on experience in fundamental design, drilling, analysis, and project delivery. This breadth allows him to bridge technical precision with practical, on-site understanding, a combination highly valued by clients.
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SFGEO was established in response to a clear gap in the market, the need for responsive, honest, and solutions-focused geotechnical advice. After consistently receiving positive feedback from clients and observing how larger firms often lacked clarity, urgency, or personal engagement, Alli set out to build a consultancy grounded in local insight, direct communication, and practical outcomes. Born and raised in Sydney, he takes pride in working closely with clients to help lay a solid foundation for every project.
Project Experience
While SFGEO is a newly established practice, our experience comes from years of delivering geotechnical services under respected engineering and environmental firms. Below are just a few examples of the types of projects we’ve been involved in:
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Private clients and owner-builders
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Residential and commercial builders
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Civil earthworks and subcontractor teams
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Government entities, councils, and authorities (including Sydney Water)​
We also complete hundreds of site classifications each year across Greater Sydney — helping projects get off the ground quickly and confidently.
The Yards - Kemps Creek, NSW
Canterbury Aquatic and Leisure Centre, NSW
Sydney Gateway, NSW
M12 and M7–M12 Link, NSW
Mulgoa Road Upgrade, NSW
Macintyre Wind Farm, QLD
Western Sydney Airport, NSW
