German fintech startup Donnerstag.ai has raised fresh funding to modernize how suppliers track and recover their receivables in an increasingly complex B2B payment landscape. The Frankfurt based company has secured a €4.3 million seed round to scale its AI driven accounts receivable platform across the DACH region. By embedding artificial intelligence directly into ERP and finance workflows, Donnerstag.ai aims to give suppliers real time visibility on what has been delivered, invoiced, and paid, and to prevent revenue leakage that often goes unnoticed.
Seed Round and Investor Backing
The €4.3 million seed round is led by Speedinvest, a prominent early stage investor in European fintech and software. QED Investors, Crestone Venture Capital, and several well known business angels such as Stefan Kalteis, Johann “Hansi” Hansmann, Florian Gschwandtner, and Alexander Kudlich also joined the round. This combination of institutional funds and seasoned operators brings not only capital but also deep expertise in payments, SaaS scaling, and financial infrastructure, which Donnerstag.ai plans to leverage as it accelerates growth.
Product Focus on Supplier Receivables
Donnerstag.ai is building an accounts receivable management platform designed specifically for suppliers that operate in complex value chains and high volume transaction environments. The software connects ERP data, service recording information, invoicing systems, and banking feeds into a unified layer that reconciles transactions line by line and in real time. The company positions its product as a way for suppliers to replace fragmented manual checks with a continuous, intelligent control layer that protects margins and reduces disputes.
AI Driven Reconciliation and Workflow Automation
At the core of Donnerstag.ai’s platform is an AI engine that analyzes large volumes of transactional data to detect missing, duplicate, or inconsistent line items before they result in write offs or delayed payments. The system learns from each customer’s historical patterns, which allows it to refine anomaly detection, prediction of missing items, and prioritization of issues over time. Alongside analytics, the platform automates recurring processes such as open item management, bank matching, and credit reconciliation, freeing finance teams to focus on strategic decisions rather than routine data matching.
Market Context and European Momentum
The company’s seed round lands in a year that has seen growing investor interest in accounts receivable and working capital automation across Europe. Recent transactions involving players such as Mimo, Tapline, and Factris, which operate in adjacent areas like B2B payments, receivables pre financing, and invoice factoring, highlight how automation of cash flow processes is becoming a strategic priority for businesses and financiers. Donnerstag.ai differentiates itself by concentrating on the supplier side with deep ERP integration, positioning its platform as complementary to financing and factoring offerings rather than a direct competitor.
Founding Team and Strategic Vision
Donnerstag.ai was founded in 2025 by fintech veterans Barbaros Özbugutu and Volkan Özkan, who bring extensive experience from scaling European financial technology companies. Özbugutu previously served as Country Manager Germany at Klarna and co founded the Turkish payment service provider iyzico, which was acquired by Prosus owned Naspers in 2019 in one of Turkey’s landmark fintech exits. Together with CTO Eugenio Marchiori and the wider team, the founders believe that the next wave of fintech winners will emerge inside the ERP and finance stack, where AI can directly reshape operational cores rather than sit at the edge.
With its €4.3 million seed round and support from high profile fintech investors, Donnerstag.ai is positioning itself as a specialist in AI powered receivables management for suppliers. By combining real time data integration, machine learning based anomaly detection, and end to end workflow automation, the company aims to help businesses regain control over cash flow and reduce hidden revenue losses. If it delivers on its roadmap across the DACH region and beyond, Donnerstag.ai could become a key infrastructure player in Europe’s evolving B2B payments and working capital ecosystem.