About Us
We are a passionate and professional team with experience delivering metro, regional, mining and transport infrastructure projects.
Our Story
Decades Of Experience In Western Australia
We have a combined 50 years of experience in the delivery of over 20 major infrastructure projects throughout Western Australia.
Who We are

Derek Di Giulio
Director
Derek is the owner of A-Grade Earthworks and has successfully developed the company from a family-owned plant and labour hire company to a respected civil contractor.
Derek has an intimate understanding of the capabilities of all plant and equipment and strives to ensure client satisfaction is always front of mind. Derek is an expert plant operator and has unrivalled self-perform experience across all aspects of civil construction.
Derek’s role is to ensure that industry best practices and methodologies are deployed, as well as ensuring that plant, equipment, and personnel of the highest calibre are made available to our projects.

Gary Murphy
Director
Gary Murphy is a degree-qualified project management specialist with over 15 years’ relevant industry experience. Gary has project managed numerous Western Australian projects including the Ashton Avenue Bridge and Williams Bridge replacements for Main Roads Western Australia.
Gary is an expert in the implementation, management and continuous improvement of business management systems and processes.
He is a proven expert in all aspects of project delivery and ensures that all projects are executed to the highest standard.
Our Vision
To execute all business activity in a controlled and systematic manner with a relentless commitment to client satisfaction, business growth and operational excellence.
WE ARE PASSIONATE
Our Values
People & Family
We look after each other as one team with dedication, accountability, compassion, and hard work.
Social Responsibility
We believe in being good citizens. We strive to improve outcomes for the individuals, communities, and the places we interact with.
Honesty
We always operate with
transparency, integrity.
We say what we mean and
mean what we say.
Delivery Certainty
We operate in a systematic manner that offers control, security and predictability in operational outcomes.
Collaboration
We believe that the best outcomes are co-created and truly believe in the power of working together.
Safety Excellence
Safety of the community, our team and colleagues is at the forefront of every decision we make.
Acknowledgement
Samphire acknowledges Traditional Owners of Country throughout Australia and recognises the continuing connection to lands, waters and communities. We pay our respect to Aboriginal and Torres Strait Islander cultures; and to Elders past and present
