Pomegra
Vienna-based Reebuild has closed a €3M seed round led by Fortino Ventures to automate invoice checking and cost control for contractors and property developers.
Key Takeaways
- Reebuild raised a €3M seed round on October 13, 2026, led by Ghent-based Fortino Ventures.
- Rise PropTech, CuriosityVC and existing backer Hansmann Family Office also joined; the valuation is undisclosed.
- The platform serves 120+ companies on 8,200+ sites and has processed invoices worth €530M+.
Lead
Reebuild, a Vienna startup building back-office software for the construction and real estate sectors, raised €3M in seed funding on October 13, 2026. Fortino Ventures, a Ghent-based venture firm that backs B2B AI and software companies in Europe, led the round. Rise PropTech and CuriosityVC joined as investors, and the Hansmann Family Office, an existing backer, took part again. The company did not disclose a valuation.
The money will fund expansion beyond Austria and Germany, new automation modules and hiring at the Vienna headquarters.
What Does Reebuild Actually Do?
Reebuild sells an AI-native platform that reads incoming commercial documents line by line, including PDFs, photos, scans and e-invoices, and converts them into structured data. It then runs invoice review, cost management and material tracking on that data. The target user is the commercial back office of a contractor or developer, where paper-heavy workflows still dominate.
It competes with the ERP and accounting tools that construction firms already use. Those tools typically store the data but leave the reading and matching to staff. Reebuild positions itself as a layer that removes that manual step rather than replacing the accounting system.
How Large Is the Business Today?
Reebuild reports more than 120 customers across more than 8,200 construction sites and projects. It says it has processed invoices worth over €530M and more than 345,000 documents. Named customers include Pittel+Brausewetter, 3SI Immogroup, Rödl & Herdegen and Kratzert Group.
The company states that invoice processing time falls from more than 20 minutes to about three minutes. It also says approval cycles shrink from five days to roughly 1.5 days, and it cites potential procurement cost reductions of up to 20%. These are company figures and have not been independently verified. The team numbers about 25 people in Vienna.
Who Is Behind It?
Alexander Kornell founded Reebuild in 2022 and serves as CEO. Matteo Cimadom is chief revenue officer, Luca Papay is chief technology officer, and Nicolaus Lederer is chief operating officer. Co-founder Paul Lind left in May 2026 for CesiumAstro.
Earlier funding came from Austrian promotional agencies aws and FFG, plus business angel Hansi Hansmann through his family office. A seed round of €3M is therefore the first sizeable institutional cheque for a company that already has paying customers in two countries.
"We build reebuild together with our customers, extremely close to the day-to-day reality on site," Kornell said. He has also argued that software construction companies still use has barely evolved in decades.
Why Does a €3M Seed Matter in Construction Software?
The round matters because it signals investor interest in a narrow, unglamorous use case: financial workflows rather than design or site robotics. Back-office automation has a direct, measurable payback. Hours saved per invoice are easier to prove than productivity gains on a building site.
The caveat is the product's depth. Document extraction is a crowded field, and general-purpose AI models keep lowering the cost of reading invoices. Reebuild's defensibility depends on domain-specific matching, such as tying invoices to contracts, delivery notes and project budgets. Its data from 8,200+ projects is the asset most likely to support that.
The scale of the round is also modest. Three million euros buys perhaps two years of runway for a 25-person team, which means the next raise will depend on proving revenue growth outside the German-speaking market.
What Comes Next for Reebuild?
Reebuild plans to enter additional European markets beyond Austria and Germany, with German expansion named as the main priority. Hiring is planned through 2027. The company also intends to add modules covering project calculation, on-site documentation and accounting, which would move it from invoice control toward the "operating system" framing in its pitch.
That widening raises execution risk. Each new module brings it into contact with entrenched vendors and with customers whose workflows differ by country, tax regime and building standard. A Series A would likely hinge on whether the extra modules lift revenue per customer without lengthening sales cycles.
Outlook
Reebuild enters its next phase with €3M, a customer base of 120+ firms and an invoice volume above €530M, but no disclosed valuation or revenue figure. The test over the next 12 to 18 months is whether its automation claims hold up in Germany and new markets, and whether the move beyond invoices gains traction with contractors.
