A railroad track running through a narrow pass between rocky hills under a cloudy sky.

Who We Are

Practical insight. Proven expertise. Personal service.

At Stratum Consulting Engineers, we deliver more than reports - we deliver confidence. As a Newcastle-based geotechnical and environmental consultancy, we help clients make smart, safe, and sustainable decisions from the ground up.

Our strength lies in deep technical experience, genuine collaboration, and a commitment to integrity through every layer of our work.

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Construction site near the beach with dirt mounds, heavy machinery, and a train track, under a clear blue sky with sunlight.

Engineers with depth - and a human approach.

Stratum was founded on the belief that strong foundations start with trust. Our team of geotechnical specialists and chartered engineers brings decades of experience across civil, commercial, infrastructure, and residential projects throughout the Hunter and beyond.

We combine technical precision with real-world understanding - the kind that only comes from time on-site, solving complex challenges alongside our clients. That means when you work with Stratum, you get engineers who are practical, responsive, and invested in getting the best result for your project.

What sets Stratum apart.

We’re not just consultants - we’re collaborators. Our clients rely on us because we move fast, communicate clearly, and always keep their goals front of mind.

At the core of Stratum’s approach are four guiding principles:

Integrity

We do what we say we’ll do, every time.

Critical Thinking

We challenge assumptions to uncover smarter, more efficient solutions.

Adaptability

Every site is unique; our approach flexes with it.

Client Advocacy

We represent your interests first - not just compliance.

Built on experience. Driven by integrity.

Stratum is led by three directors with a shared vision: to deliver geotechnical solutions that are practical, personal, and built on trust.

Each brings decades of hands-on experience and a reputation for reliability, technical depth, and straight-talking advice.

  • Image of George, director

    George Ashworth

    Director | Principal Geotechnical Engineer

  • Black and white photo of a young man with short, styled hair, smiling slightly, wearing a dark shirt, with a brick wall in the background.

    Kostandreas Sykiotis

    Director | Principal Geotechnical Engineer

  • Portrait of a smiling man with dark hair and beard, wearing a suit and white shirt, in black and white.

    Zac Othman

    Director | Principal Geotechnical Engineer