$20m · Seed · Software · Madrid, Spain
Causa Prima, a Madrid-headquartered developer of an agent-to-agent network for B2B finance, has raised a $20 million seed round led by Base10 Partners. QED Investors and FJ Labs joined the round, while Creandum, Kfund and Borusan Ventures reinvested. Wilson Sonsini, which advised the company, said the financing brings total funding to $30 million.
The round follows a $10 million pre-seed announced in June. Europa Press reported that the new capital will support further product development and US expansion, including a planned New York office.
The product targets the gap between two finance systems
Accounts-payable software usually helps a buyer process an invoice, while accounts-receivable software helps a supplier collect it. Disputes, missing information and payment-term negotiations happen between those systems, often through email and manual follow-up. Causa Prima puts agents on both sides of the transaction so they can reconcile invoices, resolve disputes and negotiate early-payment terms on a shared network.
That two-sided design creates a different commercial mechanism from selling another internal finance tool. Reporting on the round says Causa Prima earns a share when its agents successfully negotiate early payment. The product therefore has to create measurable working-capital value for both participants, not simply automate messages. Faster settlement can free supplier cash and give buyers access to discounts, but the system must preserve authority, auditability and agreed limits when software is negotiating money.
The company says more than 3,000 active accounts use the network and that it is onboarding larger enterprise customers. Those are company-reported adoption figures, and the next test is whether usage deepens across connected buyers and suppliers rather than remaining a collection of one-sided deployments.
US expansion tests whether the network can travel
Causa Prima was founded in 2026 by Maex Ament, Henrik Gebbing and Philip Stanislaus, with teams in Madrid and Munich. Opening in New York can bring the company closer to a large B2B payments market, but distribution will depend on integrations and trust on both sides of each transaction. The unusually quick step from pre-seed to seed gives the team more capacity; it does not remove the hard work of making cross-company automation repeatable.
