17 Best SME Banking Software Development Companies (2026)

Lengreo combines custom software and web application development with product planning, UX/UI design, quality assurance, and digital growth services. Its finance-focused work includes web platforms, customer interfaces, and integrations for fintech businesses. This range is relevant to SME banking initiatives that need accessible online journeys alongside technical delivery, such as customer portals, service applications, or digital onboarding interfaces.

The company also brings SEO, lead generation, and conversion expertise into wider digital projects. That combination is useful for banking technology businesses developing both a financial product and the web presence needed to explain it to small and midsize business customers. Its published work spans custom business platforms and operational applications.

Key Facts

• Lo mejor para: Finance and fintech teams combining custom web products with customer acquisition needs
• Servicios principales: SME banking software development, custom software development, web applications, UX/UI, business analysis, QA
• Project focus: Customer portals, business platforms, integrations and digital experiences
• Locations: Amsterdam, Netherlands and Kyiv, Ukraine

Información de contacto

• Sitio web: Lengreo.com
• Teléfono: +31 686 147 566
• Correo electrónico: [email protected]
• LinkedIn: Lengreo
• Instagram: @lengreo

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HyperL1ne es un socio integral de desarrollo que combina el análisis empresarial, la experiencia técnica y un enfoque sencillo para ayudar a las empresas a crear productos digitales que aporten un valor real. En lugar de centrarse únicamente en el desarrollo, su equipo comienza por comprender los objetivos empresariales, asegurándose de que cada decisión contribuya a resultados cuantificables y al éxito a largo plazo.

Gracias a una colaboración transparente y a un equipo de especialistas con amplia experiencia, HyperL1ne acompaña a las empresas a lo largo de todo el ciclo de vida del producto, desde la validación de ideas y la definición de requisitos hasta el desarrollo, la optimización y el soporte continuo.

Dependiendo de la fase en la que se encuentre una empresa, HyperL1ne ofrece conocimientos especializados a medida para ayudarla a avanzar. Ya se trate de una startup que está lanzando un nuevo producto, de una empresa consolidada que perfecciona una solución existente o de una empresa en crecimiento que busca optimizar sus procesos y expandirse de manera eficiente, su equipo se adapta a los retos específicos de cada etapa.

• Entre sus servicios principales se incluyen:
• Descubrimiento y validación de productos
• Análisis empresarial
• Asesoramiento técnico
• Diseño UX/UI
• Desarrollo web
• Desarrollo de aplicaciones móviles
• Desarrollo de software personalizado
• Desarrollo del comercio electrónico
• Desarrollo de aplicaciones web progresivas (PWA)
• Control de calidad (QC)
• Asistencia continua en el desarrollo y optimización

Información de contacto:

• Sitio web: hyperl1ne.com
• Correo electrónico: [email protected]

Sollarix is a full-cycle digital agency that brings strategy, development, and marketing together under one roof to help businesses build digital products that grow. Instead of treating design, development, and SEO as separate projects handled by scattered vendors, their team works within a single connected system – so every website, app, or platform is built with performance, visibility, and long-term growth in mind from day one.

With over 15 years of experience and 100+ SEO projects delivered across 11+ industries, Sollarix guides companies through every stage of their digital journey – from product discovery and business analysis to development, launch, and continuous optimization. Their process follows three clear phases: Discover, Build, and Grow.

Sollarix works with startups launching their first product, SMEs modernizing outdated platforms, and established businesses looking to scale. Their team has hands-on experience with B2B companies, e-commerce brands, and SaaS products, as well as fintech, healthcare, education, logistics, and legal businesses.

• Entre sus servicios principales se incluyen:
• Descubrimiento de productos y análisis empresarial
• Asesoramiento técnico
• Diseño UX/UI
• Desarrollo web
• Desarrollo de aplicaciones móviles
• Desarrollo de software personalizado
• Desarrollo del comercio electrónico
• Desarrollo de aplicaciones web progresivas (PWA)
• AI Tools & Automation
• CRM & Internal Tools
• SEO, AI SEO & GEO
• Quality Assurance (QA) & Ongoing Support

Información de contacto:

• Sitio web: sollarix.net

OSKI Solutions builds custom financial software for banking, payments, lending, insurance, and wealth management. Its offering includes application development, financial integrations, software modernization, and ongoing technical support. The company also delivers managed IT and infrastructure services for businesses that depend on custom applications, databases, and cloud platforms.

For an SME banking product, this combination is valuable where a business-facing portal or financial workflow must connect to existing accounting, payment, and loan management tools. OSKI’s services support both the development of tailored finance applications and the operational maintenance needed once those applications are in daily use.

Key Facts

• Lo mejor para: Finance software projects needing development plus technical operations
• Servicios principales: Custom financial software, application integration, managed IT, ongoing support
• Industries: Banking, payments, lending, insurance and wealth management

Información de contacto

• Página web: oski.site
• Correo electrónico: [email protected]
• LinkedIn: www.linkedin.com/company/oski-solutions

Itexus develops software for banks, credit unions, lenders, and fintech businesses, with dedicated capabilities in digital banking and financial infrastructure. Its banking practice covers online and mobile applications, account opening, KYC and KYB onboarding, payment processing, loan origination, fraud monitoring, and integration with core banking systems. Those components are central to business banking experiences where a company must manage accounts, payments, permissions, and credit products.

The company also works on legacy modernization and financial API integration. Its published financial projects include credit union onboarding and a digital wallet ecosystem, providing concrete examples of transaction-heavy and regulated software delivery.

Key Facts

• Lo mejor para: Banks and fintechs developing integrated banking channels
• Servicios principales: Banking software, mobile banking, lending systems, payment platforms, core integration
• Especialización: Regulated financial products, KYC/KYB and legacy modernization

Información de contacto

• Sitio web: itexus.com
• Correo electrónico: [email protected]
• Facebook: www.facebook.com/itexus
• Twitter: x.com/ItexusSoft
• LinkedIn: www.linkedin.com/company/itexus
• Instagram: www.instagram.com/itexus.soft
• Address: 8, The Green, STE R, Dover, DE 19901 

SDK.finance offers a financial technology platform built around accounts, transaction processing, wallets, payments, and API-based integration. Its product approach gives financial businesses a starting infrastructure rather than requiring every ledger and payment component to be written independently. The platform supports digital banking, payment service provider applications, e-money products, and other embedded-finance use cases.

Businesses can evaluate its cloud model or source-code licensing approach depending on the level of deployment control and customization they require. For an SME banking product, the relevance lies in connecting configurable account and transaction services to custom business-facing interfaces and operational workflows.

Key Facts

• Lo mejor para: Financial product teams seeking a customizable banking and payments foundation
• Core solutions: Ledger infrastructure, digital banking, wallets, payments, APIs
• Delivery model: Platform licensing and cloud-based deployment
• Project focus: Banks, EMIs, payment providers and fintech products

Información de contacto

• Sitio web: sdk.finance
• Facebook: www.facebook.com/sdkfinance
• Twitter: x.com/sdkfinance
• LinkedIn: www.linkedin.com/company/sdk.finance
• Address: Didžioji g. 14-1 str., Vilnius, Lithuania 
• Phone: +370 5 214 0682 

Gilzor builds and modernizes web and mobile products for financial technology companies. Its fintech engineering services address transaction-heavy applications, architecture stability, customer-facing workflows, and integrations behind financial platforms. The company explicitly covers verification, transfers, withdrawals, and related financial processes, making its work relevant to business banking experiences that depend on correct account and payment behavior.

Its approach includes business analysis, design, engineering, testing, and ongoing product support. For SME-focused digital banking teams, Gilzor offers a way to develop or extend a tailored application while keeping transaction handling, release quality, and maintainability central to the work.

Key Facts

• Lo mejor para: Fintech teams developing and modernizing financial web and mobile products
• Servicios principales: Custom fintech development, web and mobile engineering, QA, product support
• Especialización: Financial workflows, integrations and transaction-heavy applications

Información de contacto

• Página web: www.gilzor.com
• Correo electrónico: [email protected]
• LinkedIn: www.linkedin.com/company/gilzor-softwaredevelopment
• Dirección: Polonia, Varsovia, Oficina 58, calle Adama Mickiewicza, 37, 01-625

10Clouds works with banks, insurers, and fintech companies on financial software and AI-enabled operational systems. Its financial services offering covers payment and wallet workflows, lending, underwriting, identity checks, financial onboarding, and process automation. More recent work emphasizes assisted decision-making, document processing, and controlled AI workflows for banking operations.

Published financial work includes an AI-supported credit assessment process and development for payment and financial application clients. Institutions improving SME lending can use these capabilities in credit analysis, application handling, or merchant onboarding, particularly when the implementation needs to integrate with existing processes and keep human review in place.

Key Facts

• Lo mejor para: Banking and fintech teams modernizing lending and operational workflows
• Servicios principales: Fintech development, AI automation, financial process engineering, integrations
• Especialización: Credit processes, payments, onboarding and regulated AI workflows
• Ubicación: Varsovia, Polonia

Información de contacto

• Sitio web: 10clouds.com
• Email: [email protected]
• Facebook: www.facebook.com/10Clouds
• Twitter: x.com/10clouds
• LinkedIn: www.linkedin.com/company/10clouds-com
• Instagram: www.instagram.com/10clouds
• Dirección: Chmielna 73, 00-801 Varsovia, Polonia
• Tel: +48 573 173 773

net-devs develops enterprise and fintech software with an emphasis on reliability, auditability, and controlled system changes. Its financial engineering work includes secure backend services, front-end applications, cloud infrastructure, modernization, and QA. Payment and transaction systems receive particular attention to recoverability, encryption, access management, and failure handling.

Those concerns matter for SME banking products that combine business accounts, payment permissions, statements, and integrations with external providers. The company also uses AI-assisted engineering within human review and delivery controls, offering additional development capacity while keeping financial system behavior testable and maintainable.

Key Facts

• Lo mejor para: Financial systems requiring audited workflows and dependable integrations
• Servicios principales: Fintech engineering, backend and frontend development, cloud, QA, modernization
• Especialización: Transaction reliability, data security and compliance-aware development
• Ubicación: Varsovia, Polonia

Información de contacto

• Página web: net-devs.com
• Correo electrónico: [email protected]
• LinkedIn: www.linkedin.com/company/net-devs
• Dirección: Obrzeżna 1D, 02-691 Varsovia, Polonia

Velmie provides modular banking technology for financial institutions, neobanks, payment providers, and digital asset businesses. Its offering combines digital banking platform components, white-label applications, API middleware, and systems integration. The model is relevant when a banking provider wants customer-facing functionality without designing every operational component from the beginning.

For SME banking, a modular approach can support the rollout of business accounts, payments, service journeys, and administrative tools in stages. Velmie’s integration and product-delivery services also help connect banking channels to third-party financial infrastructure and existing back-office systems.

Key Facts

• Lo mejor para: Institutions launching modular digital banking products
• Core solutions: Digital banking platform, white-label apps, API middleware, integration
• Especialización: Banking channels, payments and platform customization

Información de contacto

• Website: www.velmie.com
• LinkedIn: www.linkedin.com/company/velmie
• Twitter: x.com/VelmieHQ
• Address: 447 Broadway 2nd FL 10013 New York

Mobian Studio engineers fintech platforms spanning lending, mobile wallets, payment experiences, corporate finance, and back-office applications. Its industry portfolio includes credit scoring, loan origination, NFC payments, and multi-tenant corporate expense platforms with physical and virtual cards. These examples connect directly to business-oriented financial software rather than general-purpose mobile development alone.

One published project, Girls First Finance, involved building a lending and education platform with credit scoring and budgeting capabilities. Mobian also offers dedicated development teams, staff augmentation, and turnkey delivery. That flexibility supports fintech businesses looking to add specific SME-facing modules or develop a new financial product through launch and ongoing support.

Key Facts

• Lo mejor para: Fintech products combining lending, cards, mobile payments and finance administration
• Servicios principales: Custom fintech software, mobile apps, dedicated teams, outsourcing
• Project types: Credit scoring, wallets, corporate expenses, back-office tools

Información de contacto

• Página web: mobian.studio
• Correo electrónico: [email protected]
• LinkedIn: www.linkedin.com/company/mobian-studio
• Address: Masina tn 22, Kesklinna linnaosa, Tallinn 10113, Estonia

Andersen develops banking and financial software across digital channels, core system integrations, payments, lending, and operational automation. The company’s banking practice includes mobile banking, banking CRM, credit evaluation, document processing, and security-focused modernization. Its wider financial offering explicitly addresses startups, SMEs, and medium-sized financial organizations alongside established institutions.

Relevant project work includes digital banking platforms, clearing system modernization, and payment services. Andersen also describes an SME banking ecosystem within its digital banking capabilities. This makes the company particularly pertinent to financial organizations extending business-account features or coordinating multiple products through secure APIs and customer-facing applications.

Key Facts

• Lo mejor para: Banks and financial businesses building integrated SME banking services
• Servicios principales: Digital banking, payments, loan systems, integrations, mobile engineering
• Especialización: Banking transformation, financial APIs and SME banking ecosystems

Información de contacto

• Sitio web: andersenlab.com
• Correo electrónico: [email protected]
• Facebook: www.facebook.com/AndersenSoftwareDev
• Twitter: x.com/AndersenLabs
• LinkedIn: www.linkedin.com/company/andersen-softwaredev
• Dirección: Calle Rosa-Bavarese, 3, Múnich, 80639, Alemania
• Teléfono: +49 22 198 253 169

SoftPro develops custom web, cloud, and business applications using .NET, C#, React, Microsoft Azure, and related technologies. Its services cover full-stack development, modernization, cloud migration, and system integration. It works with startups, SMEs, and enterprise teams, including financial technology buyers seeking custom application delivery.

Within SME banking initiatives, these capabilities are useful for web portals, internal workflow tools, integration layers, and cloud-hosted financial applications. SoftPro’s published portfolio includes enterprise portals, finance-related CRM functionality, and SaaS data integration work. Its engineering emphasis is on shaping software around operational requirements and maintaining the system after deployment.

Key Facts

• Lo mejor para: SME-focused financial teams requiring .NET and cloud application engineering
• Servicios principales: Custom development, web applications, cloud migration, integration
• Technologies: .NET, C#, React, Azure, AWS
• Ubicación: Varsovia, Polonia

Información de contacto

• Página web: soft-pro.pl
• Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciolka St. 401

Miquido builds mobile products and applies AI to business software, with a specific portfolio in financial technology. Its work for Nextbank includes a white-label mobile banking product intended for banking institutions and an AI-powered credit scoring engine. These projects offer concrete experience in reusable banking apps and the lending capabilities behind them.

The mobile banking engagement covered accessible, maintainable Android functionality, while the credit scoring project connects machine learning to loan decision processes. For banks serving SME customers, the combination is pertinent to mobile account access, borrower assessment, and business-friendly digital banking interfaces.

Key Facts

• Lo mejor para: Banking providers developing white-label mobile experiences and credit technology
• Servicios principales: Mobile app development, product design, AI engineering, backend development
• Selected banking work: Nextbank mobile banking and credit scoring
• Ubicación: Krakow, Poland

Información de contacto

• Sitio web: www.miquido.com
• Correo electrónico: [email protected]
• Facebook: www.facebook.com/miquido
• Twitter: x.com/miquido
• LinkedIn: www.linkedin.com/company/miquido
• Instagram: www.instagram.com/miquido
• Address: Zabłocie 43a, 30-701 Kraków, Poland
• Teléfono: +48 536 083 559

A-listware provides custom software engineering and dedicated technical teams across industries that include banking, payments, lending, insurance, and investment. Its capabilities span backend and frontend development, mobile apps, cloud engineering, data, DevOps, QA, and cybersecurity. Financial organizations can engage specialists to extend an existing product team or assign a defined application project.

This model is relevant to SME banking modernization where requirements may already be owned by an internal banking team but delivery capacity needs to expand. Projects such as customer portals, service integrations, mobile features, and migration work benefit from combining application development with testing and infrastructure support.

Key Facts

• Lo mejor para: Finance businesses expanding software delivery capacity
• Servicios principales: Custom software, dedicated teams, mobile apps, QA, cloud and DevOps
• Industries: Banking, payments, lending, insurance and investment

Información de contacto

• Página web: a-listware.com
• Correo electrónico: [email protected]
• Facebook: www.facebook.com/alistware
• LinkedIn: www.linkedin.com/company/a-listware
• Dirección: St. Leonards-On-Sea, TN37 7TA, Reino Unido
• Teléfono: +44 (0)142 439 01 40

ScienceSoft develops financial software for banks, lenders, payment businesses, insurers, and investment firms. Its services include banking applications, payment gateways, loan management, business automation, financial data platforms, and system modernization. The company combines software engineering with security and compliance consulting, which is particularly useful for financial institutions handling sensitive transactions and customer records.

Published lending work includes a loan management system for Atlas Credit. ScienceSoft also offers both custom-built systems and implementation using established platforms when that better matches scope or budget. SME banking teams evaluating credit operations, finance servicing tools, or integration-heavy portals may find that range helpful.

Key Facts

• Lo mejor para: Financial institutions building banking and lending systems with compliance needs
• Servicios principales: Banking apps, payment software, lending platforms, financial automation
• Especialización: BFSI engineering, security and regulatory considerations

Información de contacto

• Sitio web: www.scnsoft.com
• Email: [email protected]
• Teléfono: +371 66 011 905
• Address: Terbatas iela 14-3 Riga, LV-1011
• LinkedIn: www.linkedin.com/company/sciencesoft
• Facebook: www.facebook.com/sciencesoft.solutions
• Twitter: x.com/ScienceSoft

21century.tech is an AI-native software studio delivering custom applications through a senior-led engineering model. Its work covers MVPs, full-stack features, third-party integrations, legacy refactoring, testing, documentation, and production deployment. Engineers use AI assistance for implementation tasks while retaining human ownership of architecture and code review.

This approach can serve fintech startups and SME banking product teams developing defined web modules, operational tools, or integration features. The studio’s remote-first delivery model and short implementation cycles are suited to scoped product work where the buyer needs senior engineering input, visible iterations, and deployment-ready software.

Key Facts

• Lo mejor para: Fintech product teams developing scoped applications and integrations
• Servicios principales: Full-stack development, MVPs, refactoring, QA and deployment
• Delivery approach: Senior engineering with AI-assisted implementation and human review
• Ubicación: Miami, USA; remote-first

Información de contacto

• Página web: 21century.tech
• Email: [email protected]