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Bridgeworks - as updates land
Bridgeworks
Demo
Civil Construction
TMR
TfNSW

Every demo needs a fake company. Ours is Bridgeworks.

Contoso taught software how to show a real product without a real customer. Bridgeworks is Demiton's Contoso: a fictional civil contractor that works real TMR and TfNSW contracts, so we can show the five diseases catching without pointing at anyone's books.

4 min read
Bridgeworks, the demo company, on a TMR contract and a TfNSW contract.

The debt we owe a company that was never incorporated

Before Bridgeworks, there was Contoso.

Contoso Ltd. is the most famous company in software, and it does not exist. It has never shipped a product, paid an employee, or filed a tax return, and it has nonetheless been the tenant in nearly every Microsoft demonstration for thirty years. When a tutorial wants to show you an Exchange rule, the mailbox belongs to someone at Contoso. When a sample database needs an invoice, Contoso issued it. When Microsoft wants to prove a feature works, they prove it on Contoso's data, because Contoso's data can be wrong in public in a way a real customer's data never can.

That is the trick, and it is a good one. A real customer's numbers are private and embarrassing. A fake company's numbers can be as realistic as you like, and nobody gets hurt. Contoso is how a real product is shown honestly, and it is the reason the entire software industry owes a small, unpayable debt to a firm that was never incorporated.

Bridgeworks is Demiton's Contoso.

What Bridgeworks is

A fictional civil contractor, built to be unremarkable. It started with one excavator and a ute, which is how half the civil firms in this country started. It now runs about 180 people, owns its plant, and works in two states for the two principals that matter to us: Transport and Main Roads in Queensland, and Transport for NSW.

It is a self-perform contractor. It does the work with its own crews and its own plant, because that is where the five diseases Demiton catches actually live: in the dirt, the concrete and the machines, not in a schedule of subbies. Four service lines it self-performs: bulk earthworks and pavement, drainage and culverts, civil concrete structures, and soft-ground treatment.

The stack is real. Assignar runs the field, Business Central runs the ledger, Employment Hero runs payroll, Navman runs the telematics, Hilti tracks the tools, SharePoint holds the documents, and Claude asks questions over it all.

The numbers are invented. That is the whole point. The numbers are invented so the product can be shown on them, instead of on yours.

The two jobs it is shown on

Both are real, and both are in progress as this is written.

In Queensland, Bridgeworks holds a package on the Coomera Connector, stage one. That is TMR's $3.4 billion motorway between Loganholme and Nerang. The business case said $2.1 billion. The public record says a bridge was found with cracks of 0.1 to 0.3 of a millimetre before it opened, and that a completion date of 2027 became "certainly by 2032". Bridgeworks' package is the dirt and the drainage, not the headlines, which is exactly where a time bar and a failed compaction result live.

In New South Wales, Bridgeworks holds a package on the Coffs Harbour Bypass, the Pacific Highway's new path around Coffs Harbour. It self-performs the earthworks and soft-ground treatment, the drainage, and the approach works to one of the bridges. The public record there is a working record: monthly acoustic reports, extended hours, a Christmas shutdown, and ground that is softer than the boreholes said.

The projects are real and cited. The company working them is the fiction.

Why this matters

The five diseases are private when they happen to a real customer. Nobody wants their rework on the internet, and we would never put it there. They are public when they happen to a fictional one. So every demo, every film, every short and every story runs on Bridgeworks, on real contracts, with real obligations, and invented numbers.

The honest sentence is: demo company, real product. Bridgeworks is the company. The register, the clauses and the protections are the product, and they are not fictional at all.


Bridgeworks is not a real company, and the Coomera Connector and the Coffs Harbour Bypass are not its projects. The projects are real and cited; Bridgeworks is the fiction laid over their public record, so the product can be shown without exposing anyone's books.

Frequently asked questions

Is Bridgeworks a real company?
No. Bridgeworks Group is a fictional civil contractor, invented to be unremarkable. Its people, plant, margins and internal numbers are made up. What is real are the contracts it is shown working on, and the obligations those contracts carry, which are read clause by clause from the register.
Why show the product on a fake company?
For the same reason Microsoft has shown its product on Contoso for thirty years. A real customer's numbers are private, and a real customer's problems are not ours to publish. A fictional company's numbers can be as realistic as we like, and the product can be shown working, or failing, without pointing at anyone's books.
Which projects is Bridgeworks shown on?
Two real, in-progress jobs. In Queensland, a package on the Coomera Connector, Transport and Main Roads' $3.4 billion stage one. In New South Wales, a package on the Coffs Harbour Bypass, Transport for NSW. The projects are real and cited. The company working them is the fiction.
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