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Builtwins 1A
Equity
€153,750
total amount raised in round
154%
9 days
remaining
- Eligible for a tax reduction
A €12B opportunity, made urgent by regulation
Market sizing
- TAM — €12B (global): the addressable market for Building Energy Management Systems (incl. intelligent HVAC energy optimisation) across non-residential buildings. (source: average of various reports: Global Market Insights & Strategic Market Research)
- SAM — €450M (Western Europe): non-residential buildings above 5,000 m², where MPC's savings comfortably justify the fee.
- SOM — €15M (Belgium & Netherlands, 3–5 year horizon): our launchpad market, where we already operate and hold a channel.
Regulation is the tailwind
The opportunity is not only large — it is becoming non-optional. Three converging EU frameworks turn HVAC efficiency from discretionary spend into compliance:
- EPBD (Energy Performance of Buildings Directive) — tightening minimum performance standards and pushing building automation and control upgrades.
- CSRD — forcing companies to measure and report energy and emissions, creating demand for the verifiable savings data Builtwins produces.
- EU Taxonomy — tying capital and asset value to demonstrable environmental performance.
Builtwins sits exactly where these mandates land: it delivers the savings and the auditable evidence of them.
Who buys, and why
Our target is non-residential buildings above 5,000 m² — offices, healthcare, education, retail and public-sector estates. The buyer is the owner, operator or facility-management function carrying both the energy bill and, increasingly, the reporting obligation.
The competition is a habit, not a company
Builtwins' real competitor is the status quo: most buildings still run on rule-based controls — the existing Building Management System (BMS) — that keep the building running but never optimise it. We don't replace that system; we sit on top of it. With no hardware to swap out, Builtwins plugs into the existing BMS and takes over the optimisation the building was never doing, turning a passive control system into an actively managed one.
A handful of direct software competitors exist, but they are overwhelmingly data-driven “black boxes” that have to learn each building from months of historical data. Builtwins is physics-based: it models the building itself, so it works accurately from day one, stays accurate as the building changes, and can explain every decision it makes. Data is still used, but only to complement the physics and the available building documentation. That physics foundation, built on 13+ years of research at KU Leuven, is also what makes Builtwins genuinely hard to copy. Furthermore, the digital twin allows additional services like excitation tests to be offered.
Go to market
- Phase 1 — Belgium & Netherlands (now): prove and scale in the home market, both direct and through the Sweco channel.
- Phase 2 — Western Europe: extend into the broader SAM, leaning on direct sales but also channel partnerships to scale delivery capacity. Also extend the value proposition of the product to address building maintenance needs & the needs for large building portfolio owners.
TAX SHELTER 45%
Investments in this company benefit from a 45% personal income tax reduction. Read more…A remaining amount of €346,250 is available for the Tax Shelter benefit.
Raise summary
| Crowd investments | €153,750 |
| Committed by others | €0 |
| Amount raised | €153,750 |
| Minimum round | €200,000 |
| Maximum round | €1,200,000 |
| Shares in the company (total round) | 21.818% |
| Pre-money valuation | €4,300,000 |
| Post-money valuation min. | €4,500,000 |
| Post-money valuation max. | €5,500,000 |