DiFacto is an AI-powered SaaS startup based in Aarhus at Incuba, automating invoice auditing for companies with complex supplier and rebate agreements — starting with the Danish construction industry. The problem: Construction companies operate under intricate price agreements with major suppliers like STARK, XL-Byg, and others. These agreements contain volume discounts, seasonal rebates, and project-based pricing. In practice, invoices frequently deviate from the agreed terms — but checking them manually is time-consuming, expensive, and requires specialist knowledge that most SMEs simply don't have. Our own pilot data shows that around 10% of all invoices contain errors or rebate breaches, putting 1–1.5% of total procurement volume at risk. Why we built it: We spent 14 months manually analysing hundreds of real price agreements and invoice structures from Denmark's largest building suppliers. That deep understanding became the foundation for a platform that does in 30 seconds what a trained analyst would take hours to do. Our core engine reads invoices via OCR, converts them to structured data, and cross-references them algorithmically against the client's price agreements — flagging every discrepancy automatically. Why now: We have a working MVP, real pilot customers, and a clear path to a commercially scalable product. We're a small team of three co-founders building something technically complex in a space with almost no direct competition. This means an intern won't just watch from the sidelines — you'll work directly on live problems, contribute to a microservice-based backend architecture, and learn how to build AI-driven data pipelines in a real startup environment at Incuba, Aarhus.