Duna, a business identity verification startup founded by Stripe alumni, just closed a €30 million Series A led by Alphabet's growth fund CapitalG, making it the best-funded European company in the so-called Stripe mafia. The round drew backing from an unusual coalition of payment rivals - current Stripe COO Michael Coogan and Adyen executives Mariëtte Swart and Ethan Tandowsky both joined as angel investors. The Germany and Netherlands-based startup is betting it can build what amounts to a digital passport system for businesses, letting companies reuse verified identity data across platforms like a B2B version of one-click checkout.
The Stripe founder factory just minted another well-funded graduate. Duna, a business identity verification startup created by former Stripe employees Duco Van Lanschot and David Schreiber, pulled in a €30 million Series A led by CapitalG - the same Alphabet growth fund that co-led Stripe's Series D back in 2016.
What makes this round remarkable isn't just the size. It's who's backing it. Current Stripe COO Michael Coogan joined as an angel, along with former Stripe CTO David Singleton and ex-COO Claire Hughes Johnson. Even Adyen - Stripe's fiercest rival in payment processing - got involved, with CRCO Mariëtte Swart and CFO Ethan Tandowsky writing checks. When competitors invest in the same startup, something interesting is happening.
The pitch is deceptively simple: fix the nightmare of business onboarding. Anyone who's tried to open a corporate bank account or get approved for B2B services knows the drill - mountains of paperwork, ID verification requests, compliance checks that drag on for weeks. Duna helps fintech companies like Plaid streamline this process, cutting down the churn that typically kills 30-40% of business sign-ups before they complete verification.
But Van Lanschot isn't building just another KYB (Know Your Business) vendor to compete with existing players like Jumio and Veriff. The real vision is a reusable identity network. "What we want to build over time is a global trust infrastructure where we provide a digital passport for every business," Van Lanschot told TechCrunch. "You can reuse your file from onboarding on Moss to onboard with Plaid, or you can reuse it to open up a bank account."
Think of it as one-click checkout for enterprises - verify your business identity once, then breeze through onboarding across dozens of platforms. It's ambitious enough that CapitalG general partner Alex Nichols compared it to rebuilding Visa from scratch. "I would say the common thing I look for in my investments are some sort of network effects, or more formal scale advantage," Nichols told TechCrunch. "I also love it when founders have an earned insight about a problem they may not have known about otherwise, and this is a very good example of that."
The investor validation runs deeper than the cap table suggests. Neither Stripe nor Adyen sees Duna as a competitive threat, despite both companies handling business verification internally. Van Lanschot's bet is that the product requires too much customization - "such fine-grained controls that change on a company-by-company basis" - for payment giants to spin it out as a standalone offering. Their tacit endorsement through angel investments backs up that theory.
Duna raised a €10.7 million seed round from Index Ventures in May 2025, and Index doubled down in this Series A alongside Puzzle Ventures. The startup operates out of Germany and the Netherlands, targeting the long tail of fintech companies that lack the resources to build sophisticated onboarding systems in-house.
The network effects won't materialize overnight, so Duna is taking a pragmatic approach. Instead of waiting for universal adoption, the team is targeting what they call "patches of networks" - small clusters where identity reuse delivers immediate value. Manufacturing companies with overlapping customers, investment firms with shared LPs, businesses operating in the same small European markets. In these tight ecosystems, the ability to verify once and reuse across three or four platforms becomes valuable today, not five years from now.
The market opportunity is substantial. Van Lanschot points to the Netherlands, where the four largest banks employ 14,000 compliance workers - half focused exclusively on business verification. Duna won't replace those jobs immediately, but AI-powered automation can chip away at costs while building toward the larger network vision. It's a dual revenue model: sell efficiency gains now, build network effects for later.
What sets Duna apart from existing KYB vendors, according to CapitalG's Nichols, is the decision to generate original verification data rather than aggregating existing sources. Legacy data providers often work with incomplete or outdated information. Duna is building its own dataset from the ground up, which takes longer but creates a more defensible moat.
The Stripe connection runs through everything. Anthropic and OpenAI may be fierce rivals in AI, but their presidents Daniela Amodei and Gregory Brockman both came from Stripe. The payments company has become one of tech's most prolific founder factories, spinning out dozens of startups across fintech, infrastructure, and beyond. With this €30 million round, Duna just became the best-capitalized European member of that alumni network.
If Duna succeeds in building the rails for business identity verification, the end game could mirror Stripe Link - the consumer product that remembers payment details across merchant sites. One-click business onboarding at scale would be transformative for B2B software adoption rates, potentially unlocking billions in value currently lost to onboarding friction. Once again, the Stripe DNA shows through.
Duna's €30 million Series A validates a contrarian bet: that business identity verification is complex enough to remain independent from payment giants, yet valuable enough to attract their backing. The startup is playing a long game, selling immediate efficiency gains while quietly assembling the pieces for a reusable identity network that could reshape B2B onboarding. With Stripe and Adyen executives personally invested, CapitalG leading the round, and a proven team of fintech operators at the helm, Duna has the runway and credibility to find out if businesses will embrace a shared verification layer. If they succeed, the payoff could be as fundamental as one-click checkout was for e-commerce - but this time, for the entire B2B software ecosystem.
