Adyen announced a strategic partnership with Danish fintech unicorn Flatpay on September 23, 2026, positioning itself as the financial infrastructure backbone for Flatpay's hyper-growth across seven European markets [1][1]. The deal lets Flatpay scale its transparent flat-rate model without building localized back-office infrastructure from scratch, directly addressing the integration and time-to-value priorities that 55.2% and 55.1% of enterprise software decision-makers, respectively, cite as top budget drivers [2][2]. Looking ahead, access to Adyen's Embedded Finance suite sets both companies up to capture share in an enterprise software market projected to grow from $379B in 2025 to $762B by 2031 at a 12.2% CAGR [3].
What is Covered in this Article
- Adyen-Flatpay partnership structure and scope [1][1]
- Flatpay's SMB growth profile and unicorn status [1][1]
- Integration and time-to-value as enterprise software purchase drivers [2][2][4][4]
- Embedded Finance suite as a future product expansion path [1]
- Enterprise software market growth outlook [3]
The News: Adyen announced a strategic partnership with Flatpay on September 23, 2026, to serve as the Danish fintech's financial infrastructure partner [1]. Under the agreement, Adyen provides local acquiring capabilities, international licensing, and deep local card scheme integrations across Flatpay's seven active European markets: Denmark, Germany, Finland, the UK, France, the Netherlands, and Italy [1][1]. Flatpay, founded in 2022, serves over 100,000 SMB merchants and is growing by thousands month-over-month [1][1]. The company achieved unicorn status in 2025 at a €1.5B valuation, making it the fastest Danish company ever to reach that milestone [1]. Adyen's unified global architecture allows Flatpay to enter new markets without building localized financial back-office infrastructure from scratch, while improving authorization rates and reliability in active regions [1]. Future optionality includes integration of Adyen's Embedded Finance suite, covering instant settlement, cash advances, business accounts, and card issuing [1].
Adyen Bets on SMB Embedded Finance With Flatpay Partnership
Analyst Take: This partnership is a textbook example of infrastructure-as-a-scale-enabler: Flatpay retains its hyper-local merchant relationships while Adyen absorbs the complexity of cross-border licensing, acquiring, and scheme integrations [1][1]. The arrangement lets Flatpay punch well above its four-year operational history without the capital drag of building country-by-country financial back-offices. For Adyen, it adds a fast-growing SMB distribution channel that broadens its reach beyond the enterprise logos it is best known for.
Integration Capability Remains the Decisive Purchase Signal
Enterprise software decision-makers consistently rank integration at the top of their priority lists. In Futurum's 1H 2026 survey, improved integration capabilities ranked as a top budget confidence driver at 55.2% (n=830) [2]. That figure was even stronger in the prior 2H 2025 survey, where improved integration capabilities reached 72.4% (n=865) [4]. Adyen's single global platform directly answers this demand: Flatpay gains one integration point that handles local card scheme nuances, authorization optimization, and regulatory licensing across multiple jurisdictions simultaneously [1]. For a company scaling from seven markets to an undefined broader European footprint, the alternative, building and maintaining separate local infrastructure stacks, would consume engineering resources and slow market entry materially. The structural demand for interoperability makes Adyen's unified architecture a durable competitive asset, not just a near-term convenience.
Speed to Value Validates the Infrastructure-as-a-Service Model
Time to value is equally load-bearing in enterprise software decisions. Faster time to value realization was cited by 55.1% of decision-makers in the 1H 2026 survey (n=830) [2], and by 60.3% in the 2H 2025 survey (n=865) [4]. Both readings confirm a consistent, structural preference for solutions that compress the gap between deployment and measurable return. Flatpay's ability to enter a new European market by using Adyen's existing local acquiring relationships and licensing rather than pursuing its own regulatory approvals from scratch is a direct expression of this principle [1]. The partnership structure allows Flatpay to maintain hyper-local merchant relationships while backing them with enterprise-grade technology. That combination accelerates go-to-market timelines without sacrificing the customer intimacy that differentiates Flatpay's flat-rate, no-hidden-fees model [1].
Embedded Finance Suite Opens a Second Growth Vector
The near-term acquiring partnership is only part of the story. Flatpay's roadmap includes integration of Adyen's Embedded Finance suite, which covers instant settlement, cash advances, business accounts, and card issuing [1]. With over 100,000 merchants and month-over-month growth in the thousands [1], Flatpay has the merchant density to make embedded financial products economically meaningful at scale. This trajectory aligns with the enterprise software market's projected expansion from $379B in 2025 to $762B by 2031, a 12.2% base CAGR [3]. As demand for unified, platform-based financial ecosystems accelerates within that growth envelope, both Adyen and Flatpay are positioning to evolve from payments infrastructure into broader SMB financial ecosystem partners. The embedded finance optionality embedded in this deal is arguably its most strategically significant clause.
What to Watch
- New market entry pace: how many additional European markets Flatpay activates using Adyen's infrastructure in Q4 2026 and Q1 2027 [1][1]
- Embedded Finance adoption timeline: when Flatpay formally launches instant settlement, cash advances, or card issuing products on top of Adyen's suite [1]
- SMB merchant growth rate: whether Flatpay's month-over-month merchant additions accelerate following the partnership announcement [1]
- Competitive response: how rival SMB payment platforms reprice or repackage their own infrastructure offerings over the next two quarters
Sources
1. Adyen Partners with Flatpay to Power SMB Expansion …, Adyen, September 2026
2. 2H 2026 Enterprise Applications Decision Maker Survey Report, Futurum Research, August 2026
3. 2H 2026 Enterprise Applications Market Sizing & Five-Year Forecast, Futurum Research, August 2026
4. 1H 2026 Enterprise Software Decision Maker Survey Report, Futurum Research, February 2026
Disclosure: Futurum is a research and advisory firm that engages or has engaged in research, analysis, and advisory services with many technology companies, including those mentioned in this article. The author does not hold any equity positions with any company mentioned in this article.
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