Stockholm has a strong concentration of software companies working with banks, fintechs, payments, and financial infrastructure. The companies below cover custom banking software, digital banking apps, payment platforms, financial integrations, modernization, and related engineering services, with a focus on firms that have a Stockholm presence or clearly serve the local market.
1. Itexus
Itexus builds custom software for banks, fintech companies, investment firms, and other financial organizations. In banking, it delivers digital banking apps, onboarding and KYC, lending, payments, digital wallets, and card management. It also handles open banking, fraud monitoring, and core banking modernization. Itexus builds trading and wealth management platforms and offers legacy modernization, cloud engineering, QA, and ongoing maintenance. Headquartered in the United States with European development offices, it serves financial clients across Europe and other international markets.
Key Facts
- Best for: Custom banking and fintech platforms
- Core services: Banking software development, fintech development, mobile banking, payments, lending, digital wallets
- Specialization: Regulated financial systems and complex integrations
- Industries: Banking, fintech, investment, trading, insurance
- Notable strength: 300+ fintech projects delivered for 250+ clients in 23 countries
Contact Information
- Website: itexus.com
- Email: moc.suxeti@ofni
- Address: 8, The Green, STE road, Dover, DE 19901, USA
- LinkedIn: www.linkedin.com/company/itexus
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- Instagram: www.instagram.com/itexus.soft
2. Knowit
Knowit offers software development, consulting, cloud, data, and digital transformation to financial institutions. Its financial work spans banking and insurance, credit processing, payment flows, compliance, and digital banking platforms. Knowit partners with Mambu and Backbase and runs a dedicated unit, Knowit Financial Solutions. In Stockholm, the group includes Knowit Financial Solutions AB and several other technology companies.
Key Facts
- Best for: Banking transformation and financial platforms
- Core services: Digital banking, payment flows, integrations, data, cloud, consulting
- Specialization: Banking and insurance technology
- Industries: Banking, insurance, financial services
- Location: Stockholm, Sweden
- Notable strength: Dedicated financial solutions capabilities and banking platform partnerships
Contact Information
- Website: www.knowit.se
- Email: es.tiwonk@ofni
- Phone: +46 8 700 66 00
- Address: Sveavägen 20, 111 57 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/knowit
- Facebook: www.facebook.com/weareknowit
- Instagram: www.instagram.com/weareknowit
3. Netlight
Netlight has worked between banking and technology for years, serving banks, payment providers, pension funds, insurers, and fintech companies. Its financial services team covers banking, credit, wealth, payments, AML, KYC, and core banking migrations. Netlight also takes on large modernization projects and critical financial infrastructure, such as scaling and optimizing core banking systems. Its Stockholm office is on Regeringsgatan.
Key Facts
- Best for: Complex financial technology and modernization
- Core services: Software engineering, architecture, modernization, financial infrastructure
- Specialization: Banking, payments, core banking, AML and KYC
- Industries: Banking, fintech, insurance, pensions, payments
- Location: Stockholm, Sweden
- Notable strength: Experience with large-scale regulated financial environments
Contact Information
- Website: www.netlight.com
- Email: moc.thgilten@ofni
- Phone: +46 8 616 99 40
- Address: Regeringsgatan 25, 111 53 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/netlight-consulting
- Instagram: www.instagram.com/netlightconsulting
4. Framna
Framna builds digital products for financial services, with a strong track record in mobile banking and payments. For SEB, it has built native banking apps for private, corporate, and young customers over many years. For Swish, one of Sweden's major payment services, it worked on consumer and business payment experiences, support tools, and the wider digital platform. Framna runs a large Stockholm studio on Kungsgatan.
Key Facts
- Best for: Mobile banking and payment applications
- Core services: Digital product development, mobile apps, UX/UI, web platforms
- Specialization: Banking and payment experiences
- Industries: Banking, finance, insurance, payments
- Location: Stockholm, Sweden
- Notable strength: Long-term digital product work for SEB and Swish
Contact Information
- Website: framna.com
- Phone: +31 (0)20 354 0259
- Address: Kungsgatan 55, 111 22 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/framna
- Facebook: www.facebook.com/framnastudios
- Instagram: www.instagram.com/framnastudios
5. Sigma Software
Sigma Software builds custom software for banks and financial companies: digital banking apps, banking platforms, and integrations. It also offers testing and modernization. Its banking team works on digital transformation, cloud-native core banking, banking app development, and process digitalization. Sigma Software has a Stockholm office on Hornsgatan and serves banking and fintech clients in several markets.
Key Facts
- Best for: Digital banking transformation
- Core services: Banking software, fintech apps, cloud, integrations, testing
- Specialization: Digital banking and core banking modernization
- Industries: Banking, fintech, financial services
- Location: Stockholm, Sweden
- Notable strength: 20 years of banking and fintech domain experience
Contact Information
- Website: sigma.software
- Email: erawtfos.amgis@ofni
- Phone: +46 70 600 42 49
- Address: Hornsgatan 1, 118 46, Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/sigma-software-page
- Facebook: www.facebook.com/SIGMASOFTWAREGROUP
- Instagram: www.instagram.com/sigma_software
6. Softhouse
Softhouse builds software and digital solutions for banks, fintech startups, insurers, and other financial organizations. It offers software development, data analysis, cloud solutions, and digital transformation. It also handles API integrations and process automation. Softhouse has a Stockholm office on Tegnérgatan and works across Sweden.
Key Facts
- Best for: Custom financial software and digital transformation
- Core services: Software development, cloud, data analytics, API integration
- Specialization: Digital solutions for financial organizations
- Industries: Banking, fintech, insurance
- Location: Stockholm, Sweden
- Notable strength: Financial-sector work combined with broader Swedish software engineering capabilities
Contact Information
- Website: www.softhouse.se
- Phone: +46 8 410 929 50
- Email: es.esuohtfos@olleh
- Address: Tegnérgatan 37, 111 61 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/softhouse
- Facebook: www.facebook.com/softhouseconsulting
- Instagram: www.instagram.com/lifeatsofthouse
7. HiQ
HiQ builds financial infrastructure: systems for data management, integration, security, and regulated financial operations. Its finance team tackles legacy modernization, growing data volumes, cybersecurity, automation, and digital financial services. HiQ has a Stockholm office on Katarinavägen and a wider network of Swedish offices.
Key Facts
- Best for: Financial infrastructure and modernization
- Core services: Software development, data management, integration, digitalization
- Specialization: Secure financial infrastructure
- Industries: Finance, banking, financial services
- Location: Stockholm, Sweden
- Notable strength: Focus on high-performing systems handling financial data and integrations
Contact Information
- Website: hiq.se
- Email: es.qih@mlohkcots.ofni
- Phone: +46 8 588 900 00
- Address: Katarinavägen 15, 11645 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/hiq
- Facebook: www.facebook.com/HiQSverige
- Instagram: www.instagram.com/hiqsweden
8. Future Processing
Future Processing offers software development and technology consulting from its Stockholm location at Epicenter. For banks and financial service providers, it builds software, digital experience platforms, integration systems, and corporate banking tools. It has also delivered security and authentication software for financial transactions.
Key Facts
- Best for: Banking platforms and financial integrations
- Core services: Custom software development, modernization, integration, consulting
- Specialization: Enterprise software and financial technology
- Industries: Banking, financial services, fintech
- Location: Stockholm, Sweden
- Notable strength: Software engineering for banking security and digital transformation
Contact Information
- Website: www.future-processing.com
- Email: moc.gnissecorp-erutuf@es.selas
- Phone: +46 76 858 22 64
- Address: Epicenter, Malmskillnadsgatan 44a, 111 57 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/future-processing
- Facebook: www.facebook.com/FutureProcessing
- Instagram: www.instagram.com/futureprocessing
9. Euvic
Euvic pairs custom software development with technology services for the financial sector, including fintech solutions, automation, security, and AI. Its Swedish team is based in Stockholm. It has supplied engineering teams to Stockholm financial software companies such as PE Accounting. In finance and insurance, Euvic modernizes systems and develops new technology.
Key Facts
- Best for: Financial software development and engineering teams
- Core services: Custom software, IT development, automation, AI
- Specialization: Fintech and financial technology
- Industries: Finance, insurance, fintech
- Location: Stockholm, Sweden
- Notable strength: Local Swedish delivery combined with access to Euvic's wider engineering organization
Contact Information
- Website: www.euvic.com
- Email: es.civue@ofni
- Phone: +46 8 522 119 70
- Address: Sveavägen 31, 111 34 Stockholm, Sverige, Sweden
- LinkedIn: www.linkedin.com/company/euvic
- Facebook: www.facebook.com/grupaEUVIC
10. Beetroot
Beetroot builds custom fintech software, from digital banking platforms and payment systems to lending and BNPL tools. It also delivers investment apps, fraud detection, and compliance workflows. Its engineers work with open banking APIs, KYC/AML providers, payment services, and legacy banking systems. Beetroot's Stockholm office is on Holländargatan.
Key Facts
- Best for: Fintech product development and dedicated teams
- Core services: Banking software, payments, lending, mobile and web development
- Specialization: Custom fintech platforms
- Industries: Fintech, banking, lending, payments
- Location: Stockholm, Sweden
- Notable strength: Coverage from MVP development through scaling and integration
Contact Information
- Website: beetroot.co
- Email: es.toorteeb@olleh
- Phone: +46 705 1 888 22
- Address: Holländargatan 20, 111 60 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/beetroot-se
- Facebook: www.facebook.com/beetroot.se
- Instagram: www.instagram.com/beetroot.se
11. Shinetech Software
Shinetech Software builds and modernizes software for finance and insurance organizations. It delivers secure, audit-ready systems, banking software, compliance modules, and trading platforms. It also builds financial APIs and modernizes legacy systems. Shinetech has a Stockholm office on Gustavslundsvägen, so it has a local presence.
Key Facts
- Best for: Financial system modernization and dedicated engineering
- Core services: Custom software, modernization, integrations, QA
- Specialization: Mission-critical financial systems
- Industries: Banking, finance, insurance, fintech
- Location: Stockholm, Sweden
- Notable strength: Experience with banking compliance and trading technology
Contact Information
- Website: www.shinetechsoftware.com
- Email: moc.erawtfoshcetenihs@unselas
- Phone: +46 73 808 98 99
- Address: Gustavslundsvägen 12, 167 51 Stockholm, Sweden
12. Valtech
Valtech helps financial institutions with digital transformation, customer experience, data, and technology. Its financial services team works with banks and other large financial organizations facing changes in regulation, customer behavior, and digital competition. Valtech has a Stockholm office on Hantverkargatan and works across Sweden.
Key Facts
- Best for: Digital transformation for financial institutions
- Core services: Digital transformation, software, data, customer experience
- Specialization: Financial services technology
- Industries: Banking, financial services, insurance
- Location: Stockholm, Sweden
- Notable strength: Work with large financial institutions on digital products and transformation
Contact Information
- Website: www.valtech.com
- Email: moc.hcetlav@jeh
- Phone: +46 8 562 233 00
- Address: Kungliga Myntet, Hantverkargatan 5, 112 21 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/valtech
- Instagram: www.instagram.com/valtech_global
13. Codepole
Codepole is a Stockholm software development company with a dedicated fintech practice. It offers full-cycle software development, web and mobile development, DevOps, product development, and dedicated engineering teams. Fintech and lending are among its industries, and its financial clients include Deutsche Bank. Its headquarters are on Upplandsgatan in Stockholm.
Key Facts
- Best for: Dedicated development teams for fintech
- Core services: Web, mobile, DevOps, product development, team extension
- Specialization: Fintech and lending
- Industries: Fintech, lending, gaming, medtech, ecommerce
- Location: Stockholm, Sweden
- Notable strength: Stockholm-based delivery with a dedicated engineering center in Warsaw
Contact Information
- Website: www.codepole.com
- Email: moc.elopedoc@pilihp
- Phone: +46 108 887 275
- Address: Upplandsgatan 54D 113 28 Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/codepole
14. Exoft
Exoft builds custom fintech and banking software for financial businesses and startups. It delivers digital banking apps, payment and wallet solutions, lending platforms, trading apps, and personal finance tools. It also offers mobile development, QA, and post-release support. Exoft has modernized core banking platforms for SME banks, digital banks, and electronic money institutions. Its Swedish office is in Stockholm.
Key Facts
- Best for: Custom banking applications and fintech platforms
- Core services: Digital banking, payments, lending, trading, QA
- Specialization: Financial software and banking modernization
- Industries: Banking, fintech, insurance, financial services
- Location: Stockholm, Sweden
- Notable strength: Recent core banking modernization and API-driven banking platform work
Contact Information
- Website: www.exoft.net
- Phone: +38 063 963 1064
- Email: ten.tfoxe@sutcatnoc
- Address: Hammarby kaj, 10D, Stockholm, Sweden
- LinkedIn: www.linkedin.com/company/exoft
- Facebook: www.facebook.com/exoft
- Twitter: x.com/ExoftSoftware
15. Tallium
Tallium builds financial software for banks and fintech companies, including mobile banking, digital wallets, payments, and open banking. It also covers lending, credit systems, investment platforms, and trading solutions. Its clients include European banks and investment companies; for Mangold, it modernized an investment banking platform. Tallium has a Stockholm regional office and works with Swedish fintech companies.
Key Facts
- Best for: Fintech products and banking applications
- Core services: Financial software, mobile banking, payments, lending, investment platforms
- Specialization: Fintech product engineering
- Industries: Banking, fintech, investment, financial services
- Location: Stockholm, Sweden
- Notable strength: Experience with banking systems, investment platforms, and regulated fintech products
Contact Information
- Website: tallium.com
- Phone: +14038799495
- Email: moc.muillat@ofni
- Address: Artillerigatan 42, Stockholm, 114 45, Sweden
- LinkedIn: www.linkedin.com/company/tallium
- Facebook: www.facebook.com/talliuminc
Conclusion
Stockholm offers a strong selection of banking software development companies with different technical and industry strengths. Some focus on digital banking and payment applications, while others are better suited to core banking modernization, financial infrastructure, integrations, or broader digital transformation.
The right partner depends on the scope of the project, required financial expertise, integration needs, security requirements, and delivery model. Comparing these factors alongside each company's relevant banking experience can help financial organizations select a development partner that fits their technology roadmap and business requirements.