Thousands of variables, decades of interactions, shifting regulations – all managed simultaneously. Built for projects that must perform today and adapt tomorrow.
At sustaing, we refuse to accept sustainability as a buzzword. Most "green" solutions fail because they chase one target and ignore the clockwork system in its entirety. We exist to change that - to expose hidden trade-offs, align every objective, and prove that truly systemic sustainability is not only possible: it is the only way to build to enable a future!
We equip you to design products and buildings that meet every sustainability goal – fully, uncompromisingly. Climate impact, circularity, energy performance and life-cycle cost – balanced, optimised as one clockwork, so that every solution holds on every objective, and every trade-off has its number.
Our work grows out of more than 15 years of research at Europe's leading research institutions, collaboration with industry pioneers of sustainability in construction and manufacturing, and active involvement where tomorrow's standards are taking shape.
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Engineered for your project, ranked by performance – whether you bring a design to test or need one to start from.
Carbon, energy, circularity, cost and whatever your project adds – held on the same elements, in the same BIM-model, at the same time.
Any objective your project sets – comfort, daylight, a client KPI – joins the four and is optimised with them, not beside them
Real, granular life-cycle cost, and a monetary impact on every sustainability issue detected
Built where the coming standards are formed, not to the ones expiring
No result may drop below the threshold of any objective, whatever it wins elsewhere
The best end-of-life scenario generated for each material and product where it is built in
Carbon, energy, circularity and cost modelled as one coupled system, not four parallel calculations
More than 70% of built projects routinely underperform sustainability targets despite immense design efforts and investments, triggering regulatory penalties, media backlash and tenant exodus.
We identify which solutions will actually deliver measured performance - before you break ground and budgets.
“Sustainable” design decisions routinely create “maintenance disasters”, resource waste, and energy penalties that don't surface for years - long after contractors are gone and warranties expired.
We expose decade-ahead cost implications during design when fixes cost thousands, not millions.
The “tunnel vision” on one sustainability optimisation unknowingly destroys three others, requiring expensive emergency redesigns mid-project.
We map all interdependencies so every decision strengthens your entire system and fails none of your sustainability objectives.
Current tools force you to optimise carbon in one software, costs in another, circularity in the next and energy in yet another - then pray they don't contradict each other at construction.
We solve all objectives simultaneously within one integrated model that reflects real-world physics.
The systemic sustainability portfolio for your project and its digital twin - for all leading sustainability goals and all phases of the life cycle. Get intelligence and precise solutions which simultaneously satisfy all your targets and objectives and fail you in none
Optimisation technology for systemic sustainability: every objective modelled with its interdependencies, every solution generated in your digital model. Subscription or managed service.
Your BIM model with carbon, energy, circularity and cost for every material and product – as they perform in place, not on paper.
Sustainability strategy and concept for the systemic sustainability performance in your project, every objective and threshold fixed before design. Knowledge transfer that equips you to fly solo.
Your product simulated where it will be built in. Data that carries your sustainability performance into your customers’ projects.
- and accept nothing less than accountable solutions.
sustaing works inside your BIM model and your natural design process - evaluating every design decision as you make it, across climate impact, energy performance, circularity and life-cycle cost, together and in real time. It doesn't hand you a score; it shows you which options hold on every objective, which ones trade a gain here for a loss there, and what each one costs.
You keep the pen. You gain a building that performs on all counts, a client whose life-cycle costs drop by millions – and the numbers to prove both.
The design decisions of a few months will follow you for the next fifty years – in operating cost, in compliance, in asset value. With sustaing, those consequences come forward to the moment they can still be changed. Every sustainability issue in the design is detected and priced, so you see what a choice costs over the life of the building, not at handover. A digital twin that doesn't just record what the building is made of: it carries the data you will need to monitor, catch risks early and keep costs under control for the decades that follow. The result is a building that holds on every objective and prevents millions in life-cycle cost before construction starts - ready to operate, ready to report.
Your product is no longer judged by its data sheet. It is judged inside someone else's building - by what it does to the carbon, the circularity, the energy performance and the life-cycle cost of the whole. sustaing shows you how your materials and products perform in exactly that context: where they win a specification, where they lose it, and what to change in design, material or production to make them the choice that holds on every objective. Delivered as a BIM object, that knowledge enters every project together with your product - its performance, its best use, its contribution to the whole.
Which requirements are gaining ground, which specifications are becoming the norm, what a product has to deliver to be chosen next: sustaing brings that market intelligence into your product development - early enough to lead the market instead of reacting to it.
Achieved a 95% customer satisfaction rate across all solutions.
Delivered over €10 million in cost savings for clients through more than 25 000 optimisations.
An LCA tool tells you the carbon of the design you already have. Our technology goes beyond: it treats carbon, energy, circularity and life-cycle cost as one coupled system, engineers the solutions that hold on all of them, and puts a monetary impact on every issue it finds. Assessment – including carbon assessment - is one of its functions; it is not the point.
The recognition that sustainability is not a list of targets but an interdependent clockwork-like system: less carbon emissions, better energy efficiency, optimised circularity performance, lower life-cycle costs - all these objectives and more, they depend on each other, and a decision that improves one moves all the others. Most approaches optimise one target and discover the consequences elsewhere too late. Systemic sustainability models the dependencies first, then looks for the solutions that satisfy every objective at once – none may fall below its threshold, so no gain is bought with a hidden loss, and every trade-off has its number. The approach has its roots in decades of research that members of our team carried out at institutions such as RWTH Aachen, TU Delft and ETH Zürich; sustaing is the technology that brings it into practice.
The earlier, the more leverage: the biggest decisions on carbon, energy, circularity and cost are made before the first detailed drawing. But there is no wrong moment – a concept model, a design in development or a finished BIM model can all be assessed, and every stage gets solutions it can still act on in the later life-cycle phases of the building.
Both. In a new design, we work from the first concept onwards. In an existing building, the question is different and often harder: what to keep, what to take out, what to add. We answer it as one optimisation – every retained element, every removal and every addition assessed together on carbon, energy, circularity and cost – so the renovation lands on the combination that gives the building its best performance for the decades after, not just a better score than before.
Your Information model – either BIM or Product Information Model - and your project’s objectives – which ones lead, where the thresholds are. If those aren’t defined yet, that is the first thing we do together.
It stays yours. Your model, your products and your results serve your project and nothing else. Your project runs on independent infrastructure – outside the large commercial cloud and service providers, accessible to you and to us, and to no one else.
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