Spending power
TheGrid Corporate Spending Power index would rate purchasing capacity from registry, scale and activity signals.
Spending power
Key facts
Counted staff
245
self-reported 201–500 band
Founded
1955
71 years
Registry matches
3
ABR
Office countries
1
7 addresses
Funding rounds
None on record
Company type
Privately Held
self-reported
Legal entities
1 brand → 3 possible registrationsThese are name matches on ABR. 3 registrations share this brand's name; which one you contract with is a question for the register.
TONKIN CORPORATION PTY LTD
ABN72092933894
TONKIN GROUP PTY LTD
ABN79616691644
TONKIN PTY LTD
ABN28072875613
Legal entities
Show as table · Tonkin: 3 registry entities
| TONKIN CORPORATION PTY LTD | ABN 72092933894 |
|---|---|
| TONKIN GROUP PTY LTD | ABN 79616691644 |
| TONKIN PTY LTD | ABN 28072875613 |
| Confirmed matches | 0 of 3 |
A candidate is a name match on the registry, not a confirmed identity, and two candidates are ambiguity rather than a corporate structure.
Description
Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.
We design intelligent solutions for the buildings, environmental, land development, marine and riverine, transport, waste and water sectors. Our clients include commercial and residential developers, construction firms, municipal councils and government departments.
At Tonkin, we put a high value on curiosity and collaboration. We thrive on solving complex problems and finding creative and progressive ways to exceed the expectations of our clients.
We take our work seriously because we know the choices we make have long-term implications. We bring holistic thinking to the table, working for the benefit of the natural environment as well as the project at hand.
Many of the areas in which Tonkin operates are undergoing rapid growth. More than ever, being able to accurately predict future needs is a fundamental quality of good planning and design.
We have invested heavily in high calibre staff and industry-leading tools to give us the edge in shaping a sustainable future.
Tonkin plans and designs with a bigger picture in mind, always aiming to add unexpected value that benefits every stakeholder.
Specialties
- asset management
- consulting
- water
- urban development
- transport
- engineering
- structural engineering
- waste management
- environment
- civil engineering
- local government
All 13 specialties
- Urban Development
- Transport
- Local Government
- Water
- Mining & Resources
- Environment
- Waste Management
- Marine & Riverine
- engineering
- asset management
- consulting
- Civil Engineering
- Structural Engineering
Locations
Country footprint
Show as table · Offices in 1 country
| Countries | 1 |
|---|---|
| Primary country | AU |
All codes: AU
Addresses
- AULevel 2, 170 Frome Street; Adelaide, SA 5000Primary
- AU6 Kay Ave; Berri, SA 5343
- AU3-5 Helen Street; Mount Gambier, SA 5290
- AULevel 6, 135 Wickham Terrace; Spring Hill, QLD 4000
- AU97 Pine Ave; Mildura, VIC 3500
- AULevel 6, 1 James Place; North Sydney, NSW 2060
- AULevel 5, 26 Duporth Avenue; Maroochydore, Queensland 4558
Grid intelligence Members
Signals & hiring
Hiring, headcount and registry-change signals, streamed to members.
Latest signal
Hiring activity
Headcount trend
Financials
Registry-filed capital and financial indicators, standardised by TheGrid.
Paid-up capital
Fiscal period
Registered charges
Revenue
Profit / loss
People & contacts
4 employee profiles on record · names withheld.
Names and titles are intentionally absent from this page. The source relation carries no consent record across the privacy regimes this directory spans, so it is never requested and never stored. Search engines see exactly what you see here.
Counts only. No names are stored here, and none are served.
FAQ
Which legal entities operate under Tonkin?
Three Australian entities on the ABR. TONKIN CORPORATION PTY LTD (ABN 72 092 933 894), TONKIN GROUP PTY LTD (ABN 79 616 691 644) and TONKIN PTY LTD (ABN 28 072 875 613). All medium confidence.
How many people work at Tonkin?
The record holds 245 counted staff profiles at January 2026, inside the self-reported 201–500 band.
Where does Tonkin have offices?
Seven addresses on record, Australia only. Primary: Level 2, 170 Frome Street, Adelaide, SA 5000.
Has Tonkin raised funding?
None linked to this brand.
What does Tonkin list as its specialties?
13 tags on the brand's own list, among them asset management, consulting and water.
Which companies are listed alongside Tonkin?
78 profiles list Tonkin as a peer — 99th percentile in Civil Engineering. It lists ten peers of its own. TMK Consulting Engineers and WGA (Wallbridge Gilbert Aztec) list it back.