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 develops custom software for banks, fintech companies, investment firms, and other financial organizations. Its banking work covers digital banking applications, onboarding and KYC, lending, payments, digital wallets, card management, open banking, fraud monitoring, and core banking modernization. The company also develops trading and wealth management platforms and supports legacy modernization, cloud engineering, QA, and ongoing maintenance. Itexus is headquartered in the United States and has European development offices, while serving financial organizations 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 combines software development, consulting, cloud, data, and digital transformation services for financial institutions. Its financial solutions work includes banking and insurance, credit processing, payment flows, compliance, and digital banking platforms. Knowit also works with Mambu and Backbase and has a dedicated Knowit Financial Solutions business. Its Stockholm operation includes Knowit Financial Solutions AB and several other technology companies within the group.
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 long worked at the intersection of banking and technology, supporting banks, payment providers, pension funds, insurers, and fintech companies. Its financial services practice covers banking, credit, wealth, payments, AML, KYC, and core banking migrations. The company also works on large-scale modernization and critical financial infrastructure, including projects involving the scaling and optimization of core banking systems. Netlight maintains a Stockholm office 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 develops digital products for financial services, with particularly strong evidence in mobile banking and payments. Its long-running work with SEB has included native banking apps for private, corporate, and young customers. Framna has also worked with Swish on consumer and business payment experiences, support tools, and the wider digital platform behind one of Sweden's major payment services. The company operates 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 provides custom software development for financial companies and banks, including digital banking applications, banking platforms, testing, modernization, and integrations. Its banking practice covers digital transformation, cloud-native core banking, banking app development, and process digitalization. Sigma Software has a dedicated Stockholm office at Hornsgatan and works with banking and fintech clients across multiple 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 develops software and digital solutions for the financial sector, working with banks, fintech startups, insurance companies, and other financial organizations. Its services include software development, data analysis, cloud solutions, digital transformation, API integrations, and process automation. Softhouse has a Stockholm office on Tegnérgatan and operates 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 works with financial infrastructure, developing systems for data management, integration, security, and regulated financial operations. Its finance practice addresses legacy modernization, growing data volumes, cybersecurity, automation, and digital financial services. HiQ has a Stockholm office at Katarinavägen and maintains a broader Swedish office network.
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 provides software development and technology consulting, with a Stockholm location at Epicenter. Its financial-sector work includes software for banks and financial service providers, digital experience platforms, integration systems, and corporate banking. The company 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 combines custom software development with financial-sector technology services, including fintech solutions, automation, security, and AI. Its Swedish operation is based in Stockholm, and the company has delivered engineering teams for Stockholm-based financial software businesses such as PE Accounting. Euvic's financial services work covers modernization and technology development for organizations operating in finance and insurance.
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 provides custom fintech software development for products such as digital banking platforms, payment systems, lending and BNPL tools, investment applications, fraud detection, and compliance workflows. It also works with open banking APIs, KYC/AML providers, payment services, and legacy banking systems. Beetroot's Stockholm office is located 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 provides custom development and modernization services for finance and insurance organizations. Its financial practice covers secure, audit-ready systems, banking-focused software, compliance modules, trading platforms, financial APIs, and legacy modernization. Shinetech also maintains a Stockholm office on Gustavslundsvägen, giving the company a direct 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 works with financial institutions on digital transformation, customer experience, data, and technology. Its financial services practice addresses the needs of banks and other large financial organizations undergoing changes in regulation, customer behavior, and digital competition. Valtech maintains a Stockholm office on Hantverkargatan and operates 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-based software development company with a dedicated fintech practice. Its services include end-to-end software development, web and mobile development, DevOps, product development, and dedicated engineering teams. The company lists fintech and lending among its industries and has worked with financial companies including 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 develops custom fintech and banking software for financial businesses and startups. Its services include digital banking applications, payment and wallet solutions, lending platforms, trading applications, personal finance tools, mobile development, QA, and post-release support. Exoft also has experience modernizing core banking platforms used by 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 develops financial software for banks and fintech companies, covering mobile banking, digital wallets, payments, open banking, lending, credit systems, investment platforms, and trading solutions. Its portfolio includes work for European banks and investment companies, including a modernized investment banking platform for Mangold. Tallium also maintains a Stockholm regional office and works with Swedish financial technology 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.