Geosite Pty Ltd
What they do
Geosite Pty Ltd supplies geotechnical and tunnelling management, advisory and engineering services for transport infrastructure projects, including rail links, level crossing removals and stadium works.
Who buys from them
Its largest buyer is Public Transport Authority with 10 contracts worth $8M. It has 6 buyers in total, including Department of Finance, Department of Treasury, Department of Planning and East Perth Redevelopment Authority 1.
Contract size
Contracts typically range from $121K to $506K, with a median of $200K. Its largest are geotechnical and tunnelling management for Forrestfield Airport Link at $4M and geotechnical management for Perth City Link Rail Project at $2M, both from Public Transport Authority.
Recent activity
In the last 12 months there were 2 contracts worth $671K. 2 contracts are active now, with 1 ending within 12 months: technical geotechnical construction support for Perth Park at $165K from Public Transport Authority, ending Dec 2026.
What they win
How much they win each year, the size of a typical contract, and every contract on record.
Contract history
Who they win it from
Their biggest government buyers and how much of their work each one is.
Most of their work comes from one buyer: Public Transport Authority, 88% of value.
Coming up
Contracts that end soon and may go back out to tender.
The next one ends December 2026 at Public Transport Authority.
Recompete radar
1 expiring in 12moContracts nearing the end of their term. Some may go back out to tender when they expire.
About them
Company details, where they work and the names they trade under.
Also traded asGeosite, Geosite Pty Ltd
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