Slovenia’s DDD Invoices secures €1.31 million to tackle fragmented global e-invoicing compliance

DDD Invoices, a Ljubljana-based company building API-driven infrastructure for global e-invoicing compliance, has closed a €1.31 million Seed round supported by Fil Rouge Capital, 500 Global, and experienced operators from the ERP and e‑invoicing ecosystem. 

The company plans to use this funding to expand country coverage, streamline integrations and deployment, and grow the team across product, engineering, and go-to-market.

“Modern software companies cannot afford to be slowed down by local compliance complexity. Compliance is already not the most exciting part of building a company, but now it is becoming increasingly more complex due to governments tightening the regulations and companies scaling globally from the get-go. We’re building the infrastructure to take that off their plate,” said Denis Vehovec Pondelak, CEO and co-founder of DDD Invoices.

Founded in 2023, DDD Invoices provides a unified API that connects business and financial SaaS platforms to tax portals worldwide to ensure that every invoice transmitted is compliant with local CTC (Continuous-Transactions-Control), e‑invoicing, and fiscalisation requirements automatically.

According to the Slovenian startup, invoicing was once a straightforward process between two businesses. However, in many countries, invoices now need to go through government tax portals or networks like Peppol and undergo real-time validation before they are legally recognised and delivered to the recipient.

It states that each country defines its own formats, validation rules, and submission logic. For software vendors serving customers across multiple markets and for fast-growing companies operating through multiple entities, this results in a fragmented, costly system of country-by-country integrations. 

DDD Invoices claims to abstract this complexity through a unified API for issuing, receiving, and archiving tax‑compliant e‑invoices, offering an “all‑encompassing” solution for modern scaling.

Companies submit standardised invoice data, which DDD Invoices converts into local formats. It then validates the data against current rules, routes it to the appropriate tax system, and provides status updates back to the original application. 

For companies using platforms such as Stripe, Bitrix, Shopify, and Chargebee, DDD Invoices states that it offers native integrations. For unstructured files such as PDFs, the company uses AI‑based document processing to extract and structure invoice data. 

Roger Blott, partner at Fil Rouge Capital, said, “Fully compliant e-invoicing is a necessity in commerce today, and DDD is at the centre of providing this essential service to its customers. Globally, these services are in their infancy, but in a short time, they will become ubiquitous, and DDD has a second-to-none solution. We are looking forward to participating in DDD’s successful and exciting growth story.”

Today, DDD Invoices supports software companies such as Access Group, Zenoti, Logitude, and WheelSys in various global markets.

The company is also supported by angel investors and advisors with long‑standing experience in e‑invoicing, ERP, and Peppol‑based infrastructure. They include Bengt Nilsson (founder of IFS, former CEO of Pagero), Hans Berg (co‑founder of Tickstar and CEO of Arratech), Oscar Wegland (former CMO at Pagero, co‑founder and CMO of Docupath), Alexander Jansson (former Head of partnerships at Pagero, COO at Docupath), and Carl Julius Nilsson (former CCO at Pagero, CEO of Docupath).

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