Best Banking as a Service (BaaS) Providers in the UK
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Compare the Top Banking as a Service (BaaS) Providers in the UK as of October 2026
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What are Banking as a Service (BaaS) Providers in the UK?
Banking as a Service (BaaS) providers offer a service that enables businesses to access financial services, such as payments and lending, via APIs. This allows businesses to provide banking capabilities without the need to create their own infrastructure. BaaS providers facilitate the integration of banking services into existing applications and help companies increase efficiency in their operations. BaaS also makes it easier for fintech startups to launch their products and services faster. Compare and read user reviews of the best Banking as a Service (BaaS) providers in the UK currently available using the table below. This list is updated regularly.
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SBS offers an advanced, modular, real-time, fully cloud-native core banking system covering deposits, payments, lending, and compliance. Empowered by AI and Cloud evolution, it offers a robust, scalable architecture with seamless integration capabilities. As a SaaS solution, it ensures cost-effectiveness, superior security, and continuous innovation access without complex migrations.
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Razorpay
Razorpay
Power your finance, grow your business. Accept payments from customers. Automate payouts to vendors & employees. Never run out of working capital. Mix and match products from Razorpay's payment suite to solve for your exact business use case. With the easiest integration, completely online onboarding, feature filled checkout and best in class performance, quickly go live with Razorpay and experience the future of payments. Razorpay Payment Pages is the easiest way to accept payments with a custom-branded online store. Accept international and domestic payments with automated payment receipts. Take your store online instantly with zero coding. Preparation is everything! Use hosted Event Registration to quickly register event attendees online and send automated receipts. Raising money for a good cause? Our hosted Donations page saves you valuable time by automatically sending personalized 80G receipts. -
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Nordigen
Nordigen
Free banking data & premium insights. All-in-one banking data API for building powerful banking, lending and finance apps. All-in-one API for account information, transaction categorization and insights.Starting Price: Free -
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Galoy
Galoy
Communities and institutions around the world are accelerating Bitcoin and Lightning adoption using Galoy, an open-source banking platform. Accelerate development of Bitcoin banking solutions with self-hosted infrastructure or “banking-as-a-service” managed implementation. Launch a Bitcoin community bank using the same shared custody model and easy-to-use Lightning wallet that helped Bitcoin Beach build a circular economy. Use proven infrastructure to provide 21st-century financial services directly to any constituent with a mobile phone and internet connection. That's why we build products that enable organizations of any type or size to create their own Bitcoin-based bank. The app makes it easy to pay via Bitcoin address, Lightning invoice, or individual username. A transaction log displays a history of payments between users. The mobile-friendly map displays all local businesses that accept Lightning payments.Starting Price: Free -
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Unlimit
Unlimit
Unlimit is a global financial infrastructure platform that helps businesses accept, manage, and send payments through a single integration. Merchants can connect to major card schemes and more than 1,000 local and alternative payment methods, including bank transfers, digital wallets, mobile payments, and cash-based options. The platform supports multi-currency processing, local acquiring, recurring payments, payment links, payouts, fraud prevention, 3-D Secure, reporting, and reconciliation. Integration options include APIs, hosted payment experiences, and a web-based merchant dashboard. Unlimit serves ecommerce companies, marketplaces, travel and hospitality brands, gaming businesses, subscription services, and other digital enterprises expanding across the UK and Europe, Latin America, APAC, India, and Africa. Its broader technology stack also includes Banking as a Service, card issuing, programmable financial accounts, and fiat-to-crypto infrastructure.Starting Price: Custom pricing -
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Basiq
Basiq
Basiq is the leading open banking platform enabling developers to build innovative financial solutions. We provide secure access to customer-consented financial data and powerful APIs that uncover valuable insights. We're powering the future of financial apps and services with solutions for wealth managers, banks, fintechs, and more. Get access to complete and reliable banking data to deliver more engaging, personalised digital banking experiences. Use our advanced income algorithms to reliably identify all sources of income such as regular, variable and casual income streams. Enabling you to streamline individual assessments and make faster lending decisions. Provide your customers with a rich digital experience by helping them better understand where they’re spending. Use Basiq Enrich to identify the merchant, location and category of each bank transaction.Starting Price: $0.39 per user per month -
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TrueLayer
TrueLayer
TrueLayer is the leading technology company providing secure, global access to financial infrastructure. Developers use our APIs to build best-in-class products that securely access data and initiate payments in real-time. Founded in 2016, TrueLayer is connected to major banks across the world, backed by leading venture capital, and trusted by some of the biggest names in fintech including Monzo, Revolut, and Zopa. By making the power of open banking accessible through our platform, TrueLayer enables developers across any industry — from startups to enterprises — to reinvent financial services. TrueLayer is available in the UK, Europe and Australia. Easily integrate next-generation payments and financial data into any app. Build powerful products your customers love. Send and receive money on the fastest rails at the lowest rates with a first-class user experience. No cards. No fraud. No chargebacks. -
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NovoPayment
NovoPayment
NovoPayment’s API-based platform delivers digital banking, payment, and card solutions in record time. Whether you're starting from scratch, enhancing, or expanding in multiple markets, we provide the onboarding, digital core, and direct local integrations to meet your needs and stay agile. Our streamlined Visa or Mastercard prepaid, debit, and credit solutions provide all you need to deploy your consumer, SMB, or corporate programs. Launch physical or digital card programs through our native and embedded APIs and issuing infrastructure. Let users manage their digital multi-currency accounts in real-time by accessing multiple wholesale FX rates and service providers in our application network. Enable instant virtual and physical card issuing for open and closed-loop programs to fit your use case. Payments are the fuel of strong businesses. From real-time to secure remote commerce, we provide a complete set of payment tools for the digital economy. -
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Intergiro
Intergiro Intl AB
Whether you are automating your business finances or providing banking services to your customers, Intergiro's APIs give you the financial toolkit to build, adapt and thrive. Intergiro is business-shaped banking: multi-currency accounts, cards, business banking APIs, payment processing and embedded financial services via API. Get access to SWIFT/ SEPA and make and receive payments locally and internationally. Save up to 7x compared to the banks when you send money abroad. Hold and switch between multiple currencies in seconds with low, transparent fees. FX with spot pricing and instant settlement, without paying hidden fees. Sign up and get verified online — without visiting a local branch. Receive payment like a local in 8+ currencies. Go global fast with multi-currency payments using local rails. Get a EUR IBAN and a multi-currency IBAN with us to unlock all benefits of international trade for your business.Starting Price: €9 per month -
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Arttha
PureSoftware
Digital accessibility is need of your customers. Unlock the power of digital banking with Arttha digital banking as a service and redefine your business offerings. Instant payments matter to your customers. Seamlessly integrate Arttha with your existing Core Banking Systems and enable your customers to make digital payments in a snap. Deliver delightful customer experience and take effective lending decisions in the current fast-paced lending environment. Arttha is the end-to-end lending lifecycle management tool that your business needs. Allow your merchants to accept payments anywhere anytime with Arttha merchant management solution. A single platform solution to offer all aspects of acquiring from on boarding to hardware and reporting. Embrace Financial Inclusion. Make it happen by taking your Digital Bank to the unbanked people with Arttha Agent Banking. Configure features, business rules and services as per your Business needs. -
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Thought Machine
Thought Machine
Many banks have the ambition to deliver better technology to their customers, but are held back by legacy platforms and technology. Banks spend an incredible amount just to stand still. Cost of change is huge, and cost of operations is too expensive because of an inability to automate processes. Thought Machine’s mission is to build the foundations for a new era in banking. Vault is a next generation, cloud native, core banking engine. From its inception, Vault has been written purposefully as a cloud native platform - it does not contain any legacy or pre-cloud technology. Vault has been written entirely in-house at Thought Machine and so the whole system integrates smoothly as the result of a single, coherent design. Vault is built around APIs using a microservice architecture. The services within Vault constitute a significant portion of all the functionality required to run a bank. The additional services, provided by the bank or other vendors, connect through Vault’s APIs. -
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Fusion Data Cloud
Finastra
Fusion Data Cloud by Finastra is a comprehensive data platform that helps financial institutions and fintechs harness their data for faster, smarter decision-making. It simplifies access to real-time, actionable insights through AI, machine learning, and business intelligence tools. Pre-integrated with Finastra’s core banking products, it enables secure data sharing, advanced analytics, and predictive modeling across retail banking, lending, payments, and capital markets. The platform supports personalized customer experiences, streamlined operations, and proactive risk management. Developers can use curated datasets to build and fine-tune innovative solutions in less than 90 days, promoting them via the FusionStore marketplace. With scalability, flexibility, and enterprise-grade security, Fusion Data Cloud empowers organizations to innovate and grow without costly integration barriers. -
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Starling Bank
Starling Bank
Business banking – but not as you know it. Apply for a free digital business account in minutes and join over 350,000 UK businesses who have changed the way they bank. There’s a faster, easier way to stay on top of your business’s finances. Apply for an account in minutes to get your Mastercard debit card. An easy-to-use business account stacked with powerful money management tools. All with no monthly fees or UK payment charges. Free 24/7 UK support via app, phone or email, with fast response times and help from real humans. A fully regulated UK bank account, where your money’s covered up to £85,000 by the Financial Services Compensation Scheme. An easy life. If you want us to, we’ll move all your banking over for you through the Current Account Switch Service (all it takes is a few taps in-app). Most banks charge fees for what limited companies get for free with Starling business. Give our comparison table a quick scan to see for yourself. -
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Green Dot
Green Dot
Green Dot is a financial technology and registered bank holding company focused on making modern banking and money movement accessible for all. Our proprietary technology enables faster, more efficient electronic payments and money management, powering intuitive and seamless ways for people to spend, send, control and save their money. Our proprietary technology enables faster, more efficient electronic payments and money management, powering intuitive and seamless ways for people to spend, send, control and save their money. Our Banking as a Service (“BaaS”) platform enables a growing list of America’s most prominent consumer and technology companies to design and deploy their own customized banking and money movement solutions in the US and internationally. Founded in 1999 and headquartered in Pasadena, CA, Green Dot has served more than 33 million customers directly and many more through its banking partners, and now operates primarily as a “branchless bank”. -
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Railsr
Railsr
Making embedding finance into apps and customer journeys as simple as drag and drop. One platform to access a complete set of global financial capabilities. A super simple API for developers to embed global financial services directly into your app or customer journey. A global operations and license platform that processes billions of dollars annually to run your embedded financial services for you. Or if you have your own licenses and financial operations capabilities, these can be plugged in and you can use ours to scale to new geographies. Simple APIs to build and integrate any financial use-case into your own customer experience. You concentrate on product design, marketing, and engaging customers, we do all the rest. Instantly create single-use virtual debit cards to manage SaaS and other subscriptions like Netflix. Integrate wage advancing seamlessly into the payroll processes. -
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OpenPayd
OpenPayd
Build, upgrade, and grow with easy access to an entire financial ecosystem. Accounts, FX, domestic and international payments, acquiring, open banking, and more - all delivered through a single, developer-first API. Create new and exciting customer experiences by embedding financial services within your products. Your customers never need to leave your ecosystem again. Improve customer-facing and back-office operations with seamless integrations with your existing systems. Move all your services to OpenPayd and enjoy market-leading rates, coverage, technology, and support. Scale at speed by accessing local payment rails, unrivalled FX management, an extensive network of global licences, and much more. Make and receive payments locally or internationally with access to OpenPayd's global banking network. -
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Mercuryo
Mercuryo
Crypto-powered toolbox for payment innovations accessible through sole integration. Reinventing the ease of making payments that the world has never dreamt possible. Bridging fiat and crypto worlds. Seamless enterprise solutions gateway. An integrated tool for your business, Widget allows you to accept fiat payments for cryptocurrency purchases. Easy and risk-free. A tool for neobanks that allows their customers to manage crypto without handling compliance, monitoring, and obtaining licenses. Platforms like Twitch collect payments from subscribers and distribute money between streamers. Twitch gets payments from subscribers and sends money to streamers with Crypto In&Out solution. Allows your online business to accept crypto which is automatically converted to fiat. Or the other way around. A smooth and secure app for buying, selling, sending, and holding fiat & crypto. Its functionality can be easily integrated into other apps and services. -
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JUMO
JUMO
We’ve built a smart financial services platform to make finance accessible to everyone. JUMO is the market-leading banking as a service platform, enabling real-time access to funds at the lowest possible operating cost. Integrating into JUMO’s platform enables our partners to offer loans, savings and a wide range of financial choices to a new group of customers. The platform has two distinct capabilities which work together to provide a full digital banking service. The technology which provides end-to-end, next-generation banking infrastructure. The learning machine analyzes data to reduce the cost and risk of lending. We use artificial intelligence and machine learning to build accurate credit scores and targeted financial products for people who don’t have a formal financial identity, collateral or credit record. We provide our eMoney and banking partners with all the reporting, analytics and insight they need to offer individualized financial services with high value. -
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Unit
Unit
Unit is the leading embedded finance platform that helps tech companies launch embedded capital, banking, and bill pay. Its ready-to-launch solutions require zero build and can go live in as little as three weeks - helping companies grow revenue, delight customers, and win their markets. Unit’s products serve millions of users across customers like Wix, Bill.com, Honeybook, Relay, and Homebase. Headquartered in New York City and Tel Aviv, Unit is backed by top investors like Accel and Insight Partners. -
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additiv
additiv
In every industry, brands are seeking to innovate and become more central to our lives. We enable financial institutions to enhance their customer experience and complement their offering by sourcing third-party services. additiv empowers consumer brands to enhance customer value propositions and grow revenues with seamless and highly-contextualized financial experiences. additiv is the glue between you and all of the underlying capabilities that are needed to offer seamless and contextually-rich financial experiences. Everything to orchestrate financial services: the technology, open ecosystem, expertise, legal and operating framework, ongoing support. Strategic partnership with you throughout the orchestration process, from business model definition to execution. You get fully-fledged, ready-to-run, end-to-end financial experiences that are seamless, contextualized, and multichannel. -
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Stripe Treasury
Stripe
Stripe Treasury is a banking-as-a-service API that lets you embed financial services in your marketplace or platform. With a single integration, enable your customers to hold funds, pay bills, earn yield, and manage cash flow. Stripe Treasury provides the modular components you need to build a full-featured, scalable financial product for your customers. We’ve partnered with banks to enable ACH and wire transfers, FDIC insurance-eligible accounts, and faster access to payment funds, all within your platform. Create an account object with a single API request. Onboard users verify their identity and provide an account with one of our bank partners in minutes. Establish a store of funds and configure the properties of your financial product. Enable different ways to transfer funds in and out of an account. Issue custom payment cards to give users more ways to spend their funds. Stripe Treasury is built in partnership with a network of banks. -
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Treezor
Treezor
Embed financial services into your client experience and enhance your business offer thanks to Treezor’s white-label solution. Treezor, the European banking-as-a-service leader, will support you throughout your payment project, every step of the way. A wide range of financial services to support all of your projects. Our modular one-stop-shop solution makes it possible for any company (fintechs and large businesses) to accelerate their banking projects by outsourcing any of their payment needs to us. Rely on Treezor’s regulatory, security, and tech expertise to smoothly embed payments into your customer journey. Treezor represents a creative and innovative hub for the best European fintechs to accelerate the digital transformation of payments. Treezor is the preferred platform for innovative companies, startups, fintechs, neobanks and more. One contract, one API, and one integration, with multiple services and endless possibilities. -
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Sandbox Banking
Sandbox Banking
A low-code integration platform for banking. The Sandbox Banking platform helps customers connect fintech products to their existing systems. The company’s fintech partners close financial institution sales faster and can offer seamlessly integrated experiences across banking customer systems. Banks and credit unions grow revenue and increase operational efficiency by securely integrating fintech products with their existing infrastructure via Glyue. Using the company’s Glyue™️ platform, banks, and credit unions can accelerate digital transformation using pre-built API adapters and solution templates to securely connect existing systems with fintech partners. Our growing ecosystem of banking adapters and partners creates a network effect for fintech and customers. Distribute BaaS APIs and connect fintech vendors knowing ongoing security, infrastructure management, system maintenance, and business process changes are handled by Sandbox Banking for over 50 banking institutions. -
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Finzly
Finzly
Enjoy future-proof payment infrastructure with Finzly's award-winning payment core. Unify all payment rails using a single API on a payment hub and provide a rail-independent single payment experience to your customers. Break free from the constraints of legacy core and launch new financial products with unprecedented agility and speed. Launch FedNow & RTP, modernize ACH & wires, or centralize processing using our payment hub. Deliver a modern, customizable treasury experience designed for the digital economy demands. Support embedded banking by offering BaaS through Finzly APIs. Finzly’s award-winning operating system empowers your bank to innovate and compete at scale. FinzlyOS works on a simple, app-based system. Adding new financial products is nearly as easy as adding an app to your smartphone. Retain your current customers by adding on-demand features and attract new customers to your brand. -
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Synctera
Synctera
The easiest way to build banking for your customers. Enhance your value proposition and boost revenue by offering banking products and services to your customers. Synctera's banking as a service platform has everything you need to build, launch, and scale embedded banking and financial products. With Synctera's BaaS platform, companies of all sizes across industries can build, launch, and scale embedded banking products. Use a single set of flexible, secure APIs to access all the best-in-class technologies you need to build a great banking product. Whether you’re new to the financial industry or not, Synctera's extensive documentation helps you build. Synctera has a wide range of sponsor banks on our BaaS platform that can power your financial product’s capabilities. We facilitate resilient relationships between you and the sponsor bank partner that is most compatible with your unique product vision, target market, and timeline so you can launch and scale with confidence. -
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Banking Circle
Banking Circle
Banking Circle is a fully licensed bank that provides mission-critical financial infrastructure to businesses, banks, and marketplaces. Their services include cross-border payments in 24 currencies, access to 11 local clearing schemes, and a comprehensive suite of solutions across accounts, payments, and foreign exchange. Since its launch in 2016, Banking Circle has achieved a 108% compound annual growth rate in payment volumes settled on behalf of its clients. Banking Circle's infrastructure enables clients to move liquidity in real-time for all major currencies securely and compliantly, facilitating global reach and access to markets where their customers trade. Effortlessly manage your payments and FX conversions with our intuitive, PSD2-compliant client portal. access instantly. No integration is required. Tap into multiple domestic markets through a single integration point, without the need for local banking relationships. -
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Infinant Interlace Platform
Infinant
Expand distribution of your banking products through the Interlace platform. Providing the ability to offer new bundled products and services to existing customers and new customers through bank or partner channels. Lift accounts from your legacy core to our virtual account system to reduce legacy operating expense. Ability to launch programs in weeks versus months with a modern API-first cloud-native stack. Eliminate complex and costly core replacement and side-car core projects. Real-time processing of accounts, payments and card transactions to bundle new offerings. Central Interlace Console with compliance assurance across all programs through bank controls that are inherited by every program. Real-time Settlement Automation to ensure integrity of funds flow and to eliminate manual reconciliation of programs. -
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Marqeta
Marqeta
Our open API platform enables the world's innovators to instantly issue & process cards with more control, flexibility & scale. Marqeta is rewriting the rules for what’s possible with payment cards. With the most advanced infrastructure and tools for building highly configurable payment cards, Marqeta’s open API platform is designed for developers who want a simplified way of managing payment programs so they can create world-class experiences, innovate, and power new modes of commerce. A modern card issuing platform that powers the future of commerce, accelerates your business and helps build new and innovative products. An open API, instantly issued sandbox lets you get started in three clicks and enables you to instantly issue physical, virtual, and tokenized payments. Refined payment and authorization controls to rein in excess spending, protect your margins, and enable exceptional user experiences. -
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Bankable
Bankable
We enable and serve dominant financial institutions, corporates and FinTech entrepreneurs to bring to market highly differentiated payment solutions supported by a very strong, immediate business case. We deliver significant new net revenues and cost-savings by leveraging our fast, scalable and secure API and white-labelled platform to deploy targeted solutions. Our interoperable proprietary platform is PCI-DSS certified (Payment Card Industry – Data Security Standards) and hosted in Tier-4 data centers with the highest level of security certification. Bankable's Virtual Ledger Manager is a cloud based virtual account solution applicable on top of any bank account enabling enhanced cash management for global corporates. It is a multi-bank solution capable of processing standardised and proprietary data formats from multiple banks. -
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Routefusion
Routefusion
Through our global banking APIs, fintech expertise, and customer support, decrease your time to market, reduce the cost of global payments and expand your products and services internationally. Opening up international bank accounts is challenging. We'll do it for you - making direct debiting, global reconciliation, and a unified global banking experience simple. Do international business like a local. Pay international vendors and customers with ACH, SPEI, SEPA, SWIFT wires, and more. Our global payment and FX institutions network gives your customers access to rates that have traditionally only been reserved for the largest corporations. With our new approach to cross-border payments, no one gets left behind. We believe in tearing down financial barriers to growth so that every business has the opportunity to thrive.
