Two site managers with hard hats and hi-vis vests reviewing data on several monitors
For construction companies

BETTER RESULTS ON SITE THROUGH 4D SIMULATION

Better planning means spotting project risks sooner. Realistic simulation of complex construction projects identifies and clears those risks before the first excavator moves, for sharper pricing at tender stage and the confidence to act throughout execution.

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Trusted by leading contractors and public clients
Status quo

WHERE IT BREAKS DOWN TODAY

Work preparation

  • Risk management decides who wins the bid.

    How well your bid is priced depends on how well you assess project risks. If that assessment is weak, so is the bid, and the contract goes to a competitor.

  • Incomplete drawings force you into assumptions.

    Missing capacity in-house, complex dependencies spotted late, time pressure: what goes out is half-finished, instead of making the most of your chance to win.

  • 2D drawings leave room for interpretation.

    Commercial managers, lawyers and the client’s management read the same documents differently. The result: different expectations instead of one shared picture of the bid.

Execution on site

  • Control runs on manual work.

    Fragmented, static information is reconciled by hand at great effort: time that is then missing for actively steering the project.

  • The unforeseen gets expensive.

    Contractual penalties and claims hit the result directly and reach beyond the single project into your reputation in the market.

  • Decisions between options lack a basis.

    When several options are on the table during construction, there is often no basis for identifying the better one quickly and confidently.

The solution

REALISTIC 4D SIMULATION MAKES COMPLEX CONSTRUCTION PROCESSES VISIBLE

With dProB you run the entire construction process through before it happens on site, for sharper bids and confident execution.

Iterative development: to a validated solution, together

From rough to detailed, with everyone on board: instead of weighing up individual proposals with no certainty, the basis for the decision is built jointly, including for the level that is not deep enough in the detail to judge it alone.

A digital twin of the site: no surprises

The entire construction process is played through as a digital replica. The result: high planning certainty, lower project risks, better work preparation and a better margin through sharper pricing and fewer contractual penalties.

Seeing is believing: transparency that convinces

A visualized construction process creates buy-in with every stakeholder, with no room for interpretation. When everyone sees the same thing, there is nothing left to argue about.

Digital control room: steering dynamically in a dynamic world

The target-actual comparison runs live: deviations become visible immediately, alternatives can be played through and assessed straight away. Instead of clinging to the original plan, you steer in real time.

Make better decisions, based on experience and data.

Lean & takt

Your takt plan says who works where and when. It does not say whether it adds up.

Takt planning and lean construction bring structure, reliability and team discipline to the site. We build on that. What takt planning and lean cannot do is capture realistically how processes, resources, logistics and building states actually interlock. That is exactly where simulation comes in: it calculates the takt through before it becomes binding in the weekly plan. Your lean organization gains a better basis and better results, not a new method.

“With the simulation we were able to bring every stakeholder on board and point out conflicts before ground was even broken.”
References

THE FRONT-RUNNERS OF THE INDUSTRY ALREADY SIMULATE

From a bridge replacement under a tight track possession to a major tunnel project: these construction companies calculated their construction process in advance and gained an edge from it.

Simulation model of the Else railway bridge with the existing structure, cranes and site setup
DB InfraGO · Bridge replacement

What happens when there is not a minute of slack?

How construction process simulation secured the 55-hour track possession at the Else railway bridge.

Deep Dive →
Simulation view of the Loeringhoff bridge on the heavy-load transporter
Johann BUNTE Bauunternehmung

Will the bridge even fit through the site?

Simulation proved the logistics plan would work, despite severely limited space on site.

Deep Dive →
Rendering: tunnel portal with trains entering© 2025 ÖBB-Infrastruktur AG
Tunneling & infrastructure

Schedule saved, site coordinated from the home office

A digital control room and simulation secure delivery of a major tunnel project.

Deep Dive →
Data sovereignty

YOUR DATA STAYS YOUR DATA

Your schedules, cost bases and construction methods are your competitive edge. That is why they stay with you: dProB runs locally on your computers, you only use the cloud if you want to, and your project data does not train any AI.

Runs locally on your computers

dProB is designed as a locally installed application. Project data is not transferred to the internet automatically; only the login runs online.

Cloud only if you want it

Projects only reach dProB Viewer or dProB Cloud if you deliberately upload them. BII GmbH's servers are located in Germany, and private hosting is available on request.

No AI training on your data

simbox, too, processes your documents on servers operated by BII GmbH itself, using a self-hosted AI. Customer data is not used for training.

All answers on data protection and data sovereignty

Let us talk about your results on site

Your direct contact
Marlon Gilfert
COO & Head of Process Engineering
Portrait of Marlon Gilfert

Let us talk about how we can help you improve your results on site.

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