Supplier · Construction, Consultancy & Legal, Arts & Culture

Diadem DDM

Last winOct 2025Nothing won in the last 12 monthsValue won per quarter, last three years

Contracts on record8$7.5M in total

Running now0Contracts still running

Next contract endingSept 2027$770K · Director of National Parks

Biggest buyerServices Australia66% of their value

6contractssince 2005

$6.7Mwon in totallatest Sept 2025

$525Ktypical contractmost $60K to $909K

$525Klast 12 months

0active now

Biggest buyerServices Australia1 contract · $5M · 75% of value

What they do

Diadem DDM supplies signage, wayfinding and interpretation systems, including manufacture, installation and project management.

Who buys from them

Services Australia is the largest buyer at $5M, followed by Major Projects Victoria and Director of National Parks. It has 6 buyers.

Built from awarded contracts on record

What they win

How much they win each year, the size of a typical contract, and every contract on record.

Contract history

Provision of a Comprehensive Signage, Interpretation and Wayfinding Manual and System across Kakadu National ParkConsultancy & Legal$525K23/09/2025 Development of Integrated Signage, Interpretation and Wayfinding System for Kakadu National ParkArts & Culture$770K23/09/2025 Signage Supply for Melbourne Park Redevelopment Stage 2Construction$909K04/06/2016 Signage Location and Wayfinding Study for Digital ProjectConsultancy & Legal$46K01/11/2013 Signage Supply for Services Australia BuildingsConstruction$5M15/05/2012 Refurbishment of Navy Values Signage for Department of DefenceDefense & Aerospace$17K29/03/2010 Provision of Project Management and Superintendent Services for Outer Eastern SmartBusTransport & Logistics$60K01/03/2006 Manufacture, Installation, and Decommissioning of Four LOOK TowersConstruction$190K31/10/2005

Who they win it from

Their biggest government buyers and how much of their work each one is.

Coming up

Contracts that end soon and may go back out to tender.

Contracts ending in the next three years1 contract · $770K

The next one ends September 2027 at Director of National Parks.

Recompete radar

1 expiring in 12mo

Contracts nearing the end of their term. Some may go back out to tender when they expire.

Development of Integrated Signage, Interpretation and Wayfinding System for Kakadu National Park

Expires in 10mo$770K

Director of National Parks

About them

Company details, where they work and the names they trade under.

Also traded asDIADEM DDM, Diadem DDM Pty Ltd, DIADEM DDM PTY LTD

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Open tenders that match their work

Trail Signs Manufacture, Delivery and Installation — Telegraph Station & Redbank Gorge, Alice Springs RegionCloses 26 NovInfrastructure Roadside Advertising Opportunities 2026 – Department of Transport and Main RoadsCloses 31 DecMiscellaneous FY27 Road Linemarking Works — Barwon Southwest Region (Regional Package)Closes 25 NovInfrastructure Main Switchboard Replacement – Museum and Art Gallery of the Northern Territory, DarwinCloses 9 DecConstruction Repairs and Maintenance of Fire Detection Systems in NT Government Assets — Darwin & East Arnhem (36-month contract)Closes 3 DecPublic Safety & Security Housing Design, Drafting and Professional Services Panel — All of NT (36-Month Contract)Closes 23 NovConsultancy & Legal Darwin (Top End East) — General Building Repairs and Maintenance for Government Assets (36 months)Closes 24 NovConstruction Drainage, Pavement and Signage Works – Macquarie Street (Windsor), Old Northern Road (Glenorie) & Galston Road Pedestrian Refuge ProjectCloses 7 DecInfrastructure Architectural Design Services for 19-Unit Development at Lot 724 Dowding Way, Port HedlandCloses 20 NovConstruction Billboard Advertising Rights – South Australian Rail Corridors, Infrastructure and Road ReservesCloses 26 NovMiscellaneous Traffic Management Services Across Northern Territory — 36-Month ContractCloses 26 NovTransport & Logistics Design, Manufacture and Installation of Prototype Testing Display – Public Transport AuthorityCloses 25 NovTransport & Logistics

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