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Donnerstag.ai secures €4.3 million in Seed funding to bolster its DACH presence, led by Speedinvest with participation from QED Investors and Crestone VC.

PRIVATENov 20, 2025

Amount Raised

€4.3 Million

Round Type

Seed

FrankfurtSoftwareFinanceFintech

Investors

Crestone VCQED InvestorsSpeedinvest

Description

Frankfurt-based Donnerstag.ai, an accounts receivable management platform, has raised €4.3 million in Seed funding. The investment aims to help the startup expand its operations across the DACH region. Speedinvest led the round, joined by QED Investors and Crestone VC. CEO Barbaros Özbugutu emphasizes the importance of transparency in supplier payments.

Quick answer

Donnerstag.ai raised €4.3 Million in a Seed round, dated November 20, 2025. Investors: Crestone VC, QED Investors and Speedinvest. Donnerstag.ai is based in Frankfurt, Hesse, Germany.

How much did Donnerstag.ai raise?
Donnerstag.ai raised €4.3 Million in a Seed round on November 20, 2025.
Who invested in Donnerstag.ai?
Crestone VC, QED Investors and Speedinvest are named as investors in this round.
What does Donnerstag.ai do?
Donnerstag.ai is a German startup focused on accounts receivable management for suppliers.
Where is Donnerstag.ai based and how big is it?
Donnerstag.ai is based in Frankfurt, Hesse, Germany.
Who are the decision-makers at Donnerstag.ai?
Fundz holds 1 contact at Donnerstag.ai. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Finance and Fintech around the same time

Companies in the same sectors as Donnerstag.ai that raised within 45 days of this round, from Fundz verified event records.

  • Architect raised $35M (Series A) on December 25, 2025.
  • Lumin Digital raised $25M on December 19, 2025.
  • Fundvis raised $2.5M (Pre-Seed) on December 17, 2025.
  • Flair Labs raised $4M (Seed) on December 17, 2025.
  • Digital Prime Technologies raised $5M on December 15, 2025.
  • OnCorps AI raised $55M on December 11, 2025.

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Company Information

Company

Donnerstag.ai

Location

Frankfurt, Hesse, Germany

About

Donnerstag.ai is a German startup focused on accounts receivable management for suppliers. The platform uses AI to enhance transparency and efficiency in financial transactions, aiming to reduce payment losses. Its technology connects various financial data sources and automates transaction reconciliation. Founded by industry veterans, Donnerstag.ai seeks to transform financial controls through intelligent automation.

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