Donnerstag.ai Raises €4.3M Seed Funding to Automate Accounts Receivable With AI
Donnerstag.ai, a Frankfurt-based startup building an AI-powered platform for accounts receivable management, has raised €4.3 million in seed funding to scale its operations and further develop its technology across Europe. The round represents an early but significant step for the company as it targets inefficiencies in supplier invoicing, reconciliation, and payment visibility.
The seed round was led by Speedinvest, with participation from QED Investors, Crestone VC, and a group of European angel investors. The backing from both European and US-based funds highlights growing investor confidence in AI-driven financial operations software, particularly in areas that have historically relied on manual processes.
Founded in 2025 by Barbaros Özbugutu and Volkan Özkan, Donnerstag.ai was created to address a persistent problem faced by suppliers: limited transparency into what has been delivered, invoiced, disputed, and ultimately paid. In many organizations, finance teams rely on fragmented data spread across enterprise resource planning systems, logistics platforms, and banking tools. This fragmentation often leads to reconciliation errors, delayed payments, and lost revenue.
Donnerstag.ai’s platform uses artificial intelligence to automate and continuously reconcile large volumes of receivables data in real time. By consolidating information from multiple systems, the software identifies discrepancies, detects missing or inconsistent data, and flags issues before they escalate into payment delays or write-offs. The company says its system improves over time as it learns from historical transaction patterns, enabling increasingly accurate predictions and alerts.
The startup positions its product as a way for suppliers to regain control over their cash flow without increasing administrative workload. Instead of manually matching invoices, delivery confirmations, and bank statements, finance teams can rely on automated workflows that surface exceptions and provide a clear, up-to-date view of outstanding receivables. This approach is particularly relevant for companies operating in complex supply chains, where high transaction volumes and varying customer requirements can make reconciliation difficult.
The investment from Speedinvest reflects a broader trend among venture capital firms toward backing AI-first enterprise software that modernizes core business functions. Speedinvest has built a strong presence in fintech and enterprise technology, and its involvement provides Donnerstag.ai with both capital and strategic support as it expands beyond its initial customer base. The participation of QED Investors further underscores the relevance of the problem Donnerstag.ai is addressing, as QED has a long track record of investing in companies that reshape financial infrastructure.
Crestone VC’s involvement adds another layer of validation, given the firm’s focus on early-stage technology companies with the potential to define new categories. Together, the investor group brings experience across fintech, enterprise software, and go-to-market scaling, which could prove critical as Donnerstag.ai moves from early adoption to broader market penetration.
The company plans to use the new funding to expand across the DACH region, deepen integrations with ERP, logistics, and financial systems, and further strengthen its AI reconciliation engine. Donnerstag.ai also intends to grow its product and commercial teams to support onboarding of midsize and enterprise customers, as well as to refine features based on user feedback.
As businesses face increasing pressure to improve working capital management and reduce operational inefficiencies, solutions that bring automation and transparency to financial workflows are gaining traction. Donnerstag.ai’s focus on accounts receivable management places it at the intersection of fintech and enterprise software, a space that continues to attract attention as companies seek more accurate, real-time financial insights.
With fresh capital in place, Donnerstag.ai is positioned to advance its mission of transforming receivables management for suppliers. By replacing manual reconciliation with AI-driven automation, the company aims to help finance teams reduce errors, accelerate payments, and gain clearer visibility into their financial operations as they scale.
