National
To commemorate our 70th anniversary, Tonkin hosted staff, clients and business partners for a celebratory event at Adelaide Oval.
With special guest speaker, the Hon. Tom Koutsantonis MP, Minister for Infrastructure and Transport, and Minister for Energy and Mining; the event hosted over 250 guests to signify the milestone anniversary.
Reflecting on the rich history of Tonkin, CEO, Gerry Doyle, who has been part of the team for more than 25 years, reflects on the values that have underpinned Tonkin since its founding in 1955.
“Tonkin has always been about our people – hiring great team members, giving them the freedom and support to thrive, and in a workplace where they feel truly supported and welcomed,” says Gerry. “This foundation has allowed us to continually deliver exceptional work for our clients; many of whom, like our very first client 70 years ago, remains with us today.”
“As the company has grown over the last several decades, so has our service offerings, our capabilities and capacity, however, the heart of the business remains unchanged. Our core values, our dedication to quality projects, and commitment to our team, remains unchanged since our founding in 1955,” Gerry adds.
“As the company has grown over the last several decades, so has our service offerings, our capabilities and capacity, however, the heart of the business remains unchanged. Our core values, our dedication to quality projects, and commitment to our team, remains unchanged since our founding in 1955,” Gerry adds.

“I’m incredible proud of the people that work here, of the work we do, and of the culture that we’ve created. This is what sets us apart, and has been a key factor in the rich history and the continued successes of our business.”
Tonkin’s milestone anniversary would be amiss without the dedication and passion of hundreds of past and present staff members. We express our sincere gratitude and thanks to our people, as we look forward to our future filled with growth, innovations and new challenges.
Tonkin’s milestone anniversary would be amiss without the dedication and passion of hundreds of past and present staff members. We express our sincere gratitude and thanks to our people, as we look forward to our future filled with growth, innovations and new challenges.

Since humble beginnings in 1955 as a home-based business in Woodville, this year, Tonkin celebrates 70 years of growth and success.
Over the past seven decades, Tonkin has embarked on a sustained growth journey, forming a national team of 250 people, delivering engineering, environmental and consultancy services around the country.
Over the past seven decades, Tonkin has embarked on a sustained growth journey, forming a national team of 250 people, delivering engineering, environmental and consultancy services around the country.
Guiding our success over the last 70 years, has been Tonkin’s most important asset – our people. Their commitment has not only sustained our growth, but has also enabled us to expand and diversify our service areas and service offerings to meet the evolving needs of our clients.
In recent times, Tonkin has been involved in a variety of landmark projects, supporting communities in metropolitan and regional Australia, spanning across eight offices nation-wide.
We are continually learning, diversifying and taking on new challenges as we provide our clients with imaginative and dependable solutions. As we look to the future, we continue to plan and design with a broader picture in mind, always aiming to add unexpected value that benefits for every client and community member.







