Insights

Sustainability Focus Tonkin emphasizes holistic planning with long-term environmental benefits and sustainable outcomes, presenting an opportunity to offer integrated green infrastructure, climate resilience, biodiversity, and asset lifecycle services to private developers and public sector clients.

Growth and Expansion The firm operates across diverse sectors and has grown through acquisitions and expanded footprints, signaling opportunities to upsell multidisciplinary design, project delivery, and regional engineering services to municipal councils, state departments, and construction firms.

Digital Tools Adoption of Autodesk Construction Cloud, Revisto, Microsoft Azure and other modern tech suggests a readiness for collaboration-heavy projects; propose value in advanced BIM coordination, digital twins, project controls, and cloud-based analytics to improve efficiency and reduce risk.

Public Sector Engagement Clients include municipal councils and government departments, indicating a fertile market for regulatory-compliant, environmental impact assessments, water resources, and transport infrastructure projects requiring strong governance and stakeholder engagement.

Awards and Leadership History of industry accolades and leadership hires signals credibility; leverage this to position complementary consultancy services, risk management, and competitive differentiation for large-scale urban development, water, and sustainability programs.

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Tonkin Tech Stack

Tonkin uses 8 technology products and services including Veeam, Microsoft 365, SendGrid, and more. Explore Tonkin's tech stack below.

Media & News

Tonkin's Email Address Formats

Tonkin uses at least 3 email formats:
Tonkin Email FormatsExamplePercentage
First.Last@tonkin.com.auJohn.Doe@tonkin.com.au
92%
Last@tonkin.com.auDoe@tonkin.com.au
7%
F.Last@tonkin.com.auJ.Doe@tonkin.com.au
1%

Frequently Asked Questions

What is Tonkin's phone number?

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You can contact Tonkin's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Tonkin's stock symbol?

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Tonkin is a publicly traded company; the company's stock symbol is 8326.HK.

What is Tonkin's official website and social media links?

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Tonkin's official website is tonkin.com.au and has social profiles on LinkedIn.

How much revenue does Tonkin generate?

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As of August 2026, Tonkin's annual revenue is estimated to be $50M - $100M.

What is Tonkin's SIC code and NAICS code?

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Tonkin's SIC code is 7299 - Miscellaneous Personal Services, Not Elsewhere Classified and NAICS code is 237 - Heavy and Civil Engineering Construction.

How many employees does Tonkin have currently?

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As of August 2026, Tonkin has approximately 251 employees across 4 continents, including Oceania, Asia and Europe. Key team members include Chief Executive Officer: G. D., Chief Financial Officer: B. M. and Owner: B. T. Explore Tonkin's employee directory with LeadIQ.

What industry does Tonkin belong to?

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Tonkin operates in the Civil Engineering industry.

What technology does Tonkin use?

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Tonkin's tech stack includes Veeam, Microsoft 365, SendGrid, Cisco, Cisco Meraki, Notion, Microsoft Azure and Microsoft Teams.

What is Tonkin's email format?

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Tonkin's email format typically follows the pattern of First.Last@tonkin.com.au. Find more Tonkin email formats with LeadIQ.

When was Tonkin founded?

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Tonkin was founded in 1955.
Tonkin logo

Tonkin

Civil EngineeringSouth Australia, Australia201-500 Employees

Tonkin is a civil engineering and environmental consultancy based in Adelaide, South Australia, that provides services to both private and public sector clients. The firm delivers engineering and advisory solutions across buildings, environmental management, land development, marine and riverine work, transport, waste and water projects. Its client base includes commercial and residential developers, construction firms, municipal councils and government departments.

The company emphasizes curiosity and collaboration, aiming to solve complex problems with thoughtful, sustainable approaches that consider long-term environmental implications and shared stakeholder benefits. It notes that many of its markets are growing rapidly, highlighting the need to accurately forecast future needs in planning and design. Tonkin positions itself as a mid-sized practice that invests in qualified staff and advanced tools to add value beyond the immediate project. In 2018, the firm expanded its national footprint with the acquisition of Sydney's TLB Engineers.

Section iconCompany Overview

Phone number
SIC Code
7299 - Miscellaneous Personal Services, Not Elsewhere Classified
Stock Symbol
8326.HK
NAICS Code
237 - Heavy and Civil Engineering Construction
Founded
1955
Employees
201-500

Section iconFunding & Financials

  • $50M - $100M

    Tonkin's revenue is estimated to be in the range of $50M - $100M

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