Alternatives to Tantum

ClearBank

🇬🇧 United Kingdom

ClearBank provides cloud-based clearing, accounts, and embedded banking infrastructure.

Founded 2015

Paynetics

🇧🇬 Bulgaria

Paynetics operates at the intersection of payment infrastructure and embedded finance, building the plumbing that lets fintechs and traditional companies accept, process, and manage payments without wrestling with legacy banking systems. The Bulgarian-founded company has positioned itself as a critical middleware layer—connecting merchants, fintech platforms, and financial institutions through a unified API. Rather than forcing clients into proprietary ecosystems, Paynetics emphasizes flexibility and interoperability, allowing partners to plug into multiple acquiring networks, payment gateways, and settlement rails from a single integration point. This approach has resonated particularly with regional players across Europe seeking alternatives to Western-dominated payment processors. The company's strength lies not in flashy consumer-facing products but in unglamorous, essential infrastructure: payment orchestration that routes transactions intelligently, card issuing APIs that power embedded finance plays, and acquiring services that work across markets where local nuance matters. For fintech founders building in Central and Eastern Europe or scaling across fragmented European payment corridors, Paynetics removes the friction of navigating dozens of local processors and compliance regimes. Its expansion into treasury and FX services suggests ambitions beyond pure payments—positioning itself as a platform for companies managing cross-border complexity. In an industry dominated by American giants and large European incumbents, Paynetics represents a rare example of a challenger emerging from the region's underestimated fintech ecosystem, proving that critical infrastructure doesn't always require Silicon Valley pedigree.

Founded 2013

Mangopay

🇱🇺 Luxembourg

Mangopay sits at the intersection of payments infrastructure and marketplace complexity. Rather than selling fintech features individually, the company tackles the full stack problem: how do you actually move money between dozens of parties—buyers, sellers, platforms, creators—when everyone needs different settlement rules and nobody trusts a stranger with their cash. Founded in 2011, Mangopay is a Brussels-based powerhouse that specializes in payout infrastructure for marketplaces, platforms, and creator economies. The platform handles the messy reality of modern commerce: a freelancer in Barcelona getting paid by a client in London, a marketplace taking commission, a payment processor taking a fee, and a tax authority wanting its cut—all simultaneously, all reconciled, all compliant. What sets Mangopay apart is its pragmatism. While most payment processors treat multi-party transactions as an edge case, Mangopay designed around it from the start. The company's white-label approach means you barely know it's there—you integrate their APIs, they handle the regulatory nightmare, and your users see your brand. That's the opposite of fintech theater. The European fintech world has fractured into specialists: payments here, compliance there, ledger systems somewhere else. Mangopay refuses that fragmentation. In a landscape where payment orchestration feels trendy and new, Mangopay has been solving it at scale for over a decade.

Founded 2011

Rapyd

🇬🇧 United Kingdom

Rapyd is a global fintech infrastructure company that lets businesses accept payments and move money across 170+ countries without needing local banking relationships. Rather than forcing companies to navigate fragmented payment ecosystems country by country, Rapyd abstracts away the complexity—providing a single API that connects to local payment methods, wallets, and bank accounts everywhere from Southeast Asia to Latin America. The platform handles the unglamorous but essential work: acquiring local licenses, managing compliance, and integrating with hyperlocal payment rails so a startup in Berlin can charge a customer in Lagos as easily as one in London. For merchants and platforms operating globally, this means ditching the spreadsheet of payment processors and compliance frameworks. Instead of cobbling together 15 different providers to cover emerging markets, they get one dashboard, one contract, one API. Rapyd has positioned itself as the plumbing for the next wave of global commerce—the infrastructure layer that makes it possible for any business to think globally from day one, not after they've scaled. In a fintech landscape dominated by Western-centric payment networks, Rapyd's bet on true geographic diversity and local payment methods feels like a deliberate counterweight, making it an essential piece of the infrastructure for companies serious about serving the rest of the world.

Founded 2018

Adyen

🇳🇱 Netherlands

Pieter van der Does and Arnout Schuijff had already built and sold one payments company when they sat down in 2006 to start again. The result was Adyen — the name literally means "start over" in Surinamese — and the premise was simple: instead of stitching together the same fragmented payment infrastructure everyone else was using, they would build the whole thing themselves from scratch. That decision, made in an Amsterdam office nearly two decades ago, is still the reason Adyen is different. Most payment companies are assemblers — they buy a gateway here, a processor there, bolt them together and hope for the best. Adyen owns its own technology stack end to end, which means a merchant integrating once gets access to card processing, local payment methods, point-of-sale terminals, and real-time settlement data through a single platform. No middle layers, no reconciliation headaches, no finger-pointing between vendors when something breaks. The client list tells you everything about where Adyen sits in the market. McDonald's, Spotify, Microsoft, LVMH, H&M — these are companies with serious payment volumes and zero appetite for systems that don't work. Adyen became the default choice for enterprises that had outgrown the limitations of traditional payment stacks and needed something that could handle global scale without buckling. Since going public on Euronext Amsterdam in 2018, Adyen has grown into one of Europe's most valuable technology companies, with around 4,300 employees across 23 countries and net revenue of just under €2 billion in 2024. It remains headquartered in Amsterdam and consistently profitable — a combination that's rarer in fintech than it should be. For businesses that treat payments as infrastructure rather than an afterthought, Adyen is the benchmark everything else gets measured against.

Founded 2006

Klarna

🇸🇪 Sweden

Three Stockholm School of Economics students pitched an idea at a university entrepreneurship competition in 2005: let shoppers receive goods before they pay, and put the credit risk on the merchant side. The pitch finished last. They built it anyway. Sebastian Siemiatkowski, Niklas Adalberth, and Victor Jacobsson launched what was originally called Kreditor, later renamed Klarna, and spent the next two decades turning that rejected idea into one of Europe's most recognised fintech brands. The core insight held up: millions of people would rather split a purchase into three instalments than reach for a credit card, and merchants would pay for the privilege of offering that option because it reduces cart abandonment and increases average order values. Klarna grew from a Swedish checkout button into something considerably more complex. It now holds a banking licence in Sweden, offers savings accounts, issues its own card, and operates across more than 45 markets with around 93 million active consumers and 675,000 merchant partners at the end of 2024. The US, which Klarna entered in 2015, has become its largest market by revenue, a fact the company underlined by listing on the New York Stock Exchange in September 2025 under the ticker KLAR, raising $1.37 billion at IPO. The financial trajectory has been bumpy. Klarna reported net income of $21 million in 2024, a return to profitability after a bruising 2022 that included an 85% valuation cut and significant layoffs that reduced headcount from over 7,000 to around 3,400. What survived the restructuring was a leaner company with $2.81 billion in revenue and a clearer strategic direction: AI. Klarna's partnership with OpenAI produced a customer service assistant it claims handles the equivalent of 700 full-time agents, and generative AI now manages roughly two-thirds of customer chats. The honest assessment of where Klarna sits today: it's no longer purely a BNPL provider and it's not quite a bank. It's somewhere in between, a consumer finance platform that knows more about your shopping behaviour than your bank does, and is betting that's worth a lot.

Founded 2005

Tink

🇸🇪 Sweden

Daniel Kjellén and Fredrik Hedberg didn't set out to build infrastructure. Tink started in Stockholm in 2012 as a consumer personal finance app — an attempt to give Swedish bank customers a cleaner view of their money across multiple accounts. It was a reasonable idea that ran into an unreasonable obstacle: getting reliable, consistent data out of European banks was extraordinarily hard. The technical problem turned out to be more interesting than the consumer product. In 2018 they pivoted, shifted focus entirely to the B2B layer, and started selling the very infrastructure they'd been forced to build for themselves. That pivot proved prescient. The EU's PSD2 directive, which came into full effect in 2019, legally required banks to open their data to authorised third parties — creating the regulatory foundation that open banking platforms needed to operate at scale. Tink had spent years building exactly those bank connections. When the regulation arrived, the company was ready. The platform Kjellén and Hedberg built connects to more than 3,400 banks and financial institutions across Europe, reaching over 250 million bank customers. Through a single API integration, banks, fintechs, and merchants can access aggregated account data, initiate payments directly from customer bank accounts, verify account ownership, and enrich transaction data — without maintaining their own connections to hundreds of separate banking systems with different technical standards and update schedules. Clients include Klarna, PayPal, NatWest, ABN AMRO, and BNP Paribas Fortis. In March 2022, Visa completed the acquisition of Tink for €1.8 billion — one of the largest European fintech acquisitions of that year, and a clear signal of how seriously the global payments industry had come to take open banking infrastructure. Visa's strategic rationale was straightforward: it had failed to acquire Plaid, the US equivalent, after an antitrust challenge, and needed a European open banking capability. Tink gave it 500 employees, 18 European markets, and relationships with over 300 banks and fintechs built over a decade. The founders stayed on as CEO and CTO through the transition, continuing to run Tink as a standalone Visa subsidiary from Stockholm. Both departed in 2025 — Kjellén and Hedberg announced they were building Freda, a new AI-driven legal and compliance technology startup, with the pair describing Tink as "now in better hands than ever." Francois Tornier, Visa's VP of Open Banking, took over as CEO. The product roadmap has continued under Visa ownership, including a 2024 expansion of Tink's open banking platform into the US market.

Founded 2012

Payhip

🇬🇧 United Kingdom

Payhip lets creators and small businesses sell directly to their audience without the usual gatekeeping. It's a all-in-one commerce platform that handles digital products, physical goods, subscriptions, and memberships—essentially a Shopify alternative built for creators who want simplicity and fair pricing. The platform lives in that sweet spot between marketplace and self-hosted store. You upload your product, set your price, share a link, and start selling. No approval process, no middleman deciding what you can or can't do. Payhip takes a percentage of each sale rather than charging upfront fees, which resonates with bootstrapped creators and solopreneurs who don't have predictable revenue yet. What sets Payhip apart is its lightness. While traditional payment processors demand integration work and setup headaches, Payhip is deliberately frictionless—you can be live within minutes. It also gives sellers control over their own affiliate networks and customer relationships, something most platforms charge extra for or restrict. In the crowded world of creator monetization tools, Payhip occupies the pragmatic middle: more powerful than a simple payment link, simpler than a full ecommerce platform, and designed specifically for people who want to sell without becoming a software engineer. It's quietly influential in how independent creators think about direct sales.

Founded 2010

Omnius

🇩🇪 Germany

Omnius is a European fintech infrastructure player that builds the plumbing for digital finance. Rather than launching consumer apps or chasing trends, the company focuses on giving financial institutions and fintech operators the core technology to move faster. The platform handles payment processing, account management, and the underlying APIs that let banks and non-banks operate at scale without reinventing the wheel. What distinguishes Omnius in a crowded infrastructure market is its pragmatic approach to complexity. European banks still manage legacy core systems alongside new digital channels—a messy, expensive reality most fintech companies ignore. Omnius doesn't fight that; it sits in the middle, connecting old and new, and abstracts the chaos away from the business logic above it. The company targets institutions that need to modernize faster than their technology stacks allow. That includes challenger banks that need banking-as-a-service foundations, traditional banks building new digital channels, and fintech companies that want to scale without owning every layer. It's unsexy infrastructure work—the kind that doesn't generate headlines but quietly powers the financial services layer that consumers interact with. In the European fintech stack, Omnius occupies a critical but overlooked position: the vendor that lets faster companies stay fast, and slower ones move at all.

Swan

🇫🇷 France

Swan is reshaping how European businesses handle payments by offering a modern, developer-friendly infrastructure layer that sits between companies and the complexity of traditional banking rails. Rather than forcing startups and established firms to navigate fragmented payment ecosystems, Swan bundles together payment processing, banking APIs, and compliance tooling into a single, coherent platform. The company targets mid-market and enterprise customers—think e-commerce platforms, SaaS businesses, and financial services—who need to embed payments into their core operations without hiring a dedicated payments team. Swan's core strength lies in its ability to strip away legacy banking friction: it handles card processing, instant payments, payouts, and cross-border transfers through a unified API, while managing the regulatory headaches that usually consume engineering bandwidth. In a European landscape crowded with payment gateways and banking APIs, Swan distinguishes itself through developer experience and architectural clarity. Where competitors often bolt together disparate services, Swan presents a genuinely integrated stack—one codebase, one dashboard, one billing model. The company serves as both a payments operator and a bridge to traditional banking, making it particularly valuable for businesses scaling beyond their first million transactions. Swan represents a broader maturation in European fintech infrastructure: the shift from "we'll process your payments" to "we'll become your payments backbone," enabling a generation of companies to focus on their core product rather than payment plumbing.

Founded 2019

Sesamm

🇫🇷 France

Sesamm is a European fintech platform that makes cross-border payments and international transfers seamless for individuals and businesses. Rather than wrestling with traditional banks' outdated correspondent networks, Sesamm connects users directly to liquidity providers and local payment rails across Europe and beyond, stripping away the friction that typically defines moving money across borders. The platform handles currency conversion, compliance, and settlement in the background while letting you send money in minutes rather than days. It's built for a generation that expects financial services to work as smoothly as messaging apps, but with the regulatory rigor that serious money movement demands. Unlike legacy remittance services or traditional banks charging double-digit percentage fees, Sesamm prices itself competitively and strips away opaque markups. The company positions itself as the bridge between a fragmented European payment landscape and modern expectations around speed and transparency. Sesamm represents the broader shift toward infrastructure-first fintech: instead of chasing consumer hype, it's quietly making the plumbing work better. In an EU pushing for faster, cheaper cross-border payments through initiatives like SEPA Instant, Sesamm is building the kind of platform that benefits from regulatory tailwinds while solving a genuinely frustrating problem.

Mokka

🇷🇴 Romania

Mokka is a Romanian fintech platform built for the modern seller. Rather than forcing merchants into the rigid infrastructure of traditional payment processors, Mokka gives them a unified dashboard to manage payments, invoicing, and business basics from one place. The platform handles card payments, digital wallets, and local payment methods—all wired into a clean, merchant-friendly interface that feels less like enterprise software and more like something designed for actual humans. For Romanian SMEs and freelancers tired of juggling multiple logins and opaque fee structures, Mokka offers transparency and control that legacy banking and payment gateways simply don't provide. It's part merchant acquirer, part business backbone—a practical response to how payment infrastructure in Central & Eastern Europe still lags behind Western standards. Mokka sits at the intersection of embedded finance and merchant enablement, serving businesses that want payment functionality without the complexity.

Founded 2020