Sweden has a mature fintech market supported by software engineering firms working across banking, payments, lending, investment technology, financial infrastructure, and AI. This list covers Stockholm-based development companies as well as technology partners with clear service coverage for Sweden or the wider European market. Readers can compare their fintech focus, engineering capabilities, financial-sector experience, and local presence.
1. Itexus
Itexus builds custom software for banks, fintech companies, investment firms, lenders, and other financial businesses. It builds digital banking platforms, payment and wallet apps, and lending software. It also delivers trading and wealth management products, KYC and fraud systems, and integrations with financial infrastructure.
The company also offers AI implementation, DevOps, QA, product engineering, and team augmentation. Itexus serves clients across Europe, North America, the UK, and MENA. Swedish fintech teams can work with it without needing a local Stockholm office.
Key Facts
- Best for: Custom fintech products and modernization of existing financial platforms
- Core services: Fintech software development, mobile and web development, AI implementation, QA, DevOps, staff augmentation
- Specialization: Digital banking, payments, lending, wealth management, trading, financial integrations
- Location: European service coverage, with European operations in Poland
Contact Information
- Website: itexus.com
- E-mail: moc.suxeti@ofni
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- LinkedIn: www.linkedin.com/company/itexus
- Instagram: www.instagram.com/itexus.soft
- Address: Twarda 14, 00-824 Warszawa, Poland
2. Beetroot
Beetroot has its headquarters in Stockholm and development teams in several European and international locations. In fintech, it builds digital banking and neobank products, payment apps, and digital wallets. It also works on lending and BNPL systems, credit scoring, investment platforms, and wealth management software.
The company handles open banking, payment, and KYC integrations. Beetroot can build a whole product or supply a dedicated engineering team. Swedish fintech businesses can add development capacity this way while keeping product management close to the local market.
Key Facts
- Best for: Swedish fintech teams using distributed development models
- Core services: Custom software development, fintech product engineering, dedicated teams, integrations
- Specialization: Banking, payments, wallets, lending, BNPL, investment technology
Contact Information
- Website: beetroot.co
- E-mail: es.toorteeb@olleh
- Facebook: www.facebook.com/beetroot.se
- LinkedIn: www.linkedin.com/company/beetroot-se
- Instagram: www.instagram.com/beetroot.se
- Address: Holländargatan 20, 111 60 Stockholm, Sweden
- Phone: +46 705 1 888 22
3. Knowit
Knowit offers software engineering, product development, and consulting across Sweden and the wider Nordic region. In banking, finance, and insurance, it builds digital services, integrations, payment flows, and customer onboarding. It also works on lending solutions and modernizes financial platforms.
Knowit partners with Mambu and Backbase on composable core banking and digital banking. Established financial organizations can get both application development and transformation support from its Swedish teams.
Key Facts
- Best for: Banks and larger financial organizations with multi-part transformation programs
- Core services: Software development, financial solutions, integration, cloud, digital transformation
- Industries: Banking, finance, insurance
- Location: Stockholm and other Swedish locations
Contact Information
- Website: www.knowit.eu
- E-mail: es.tiwonk@ofni
- Facebook: www.facebook.com/weareknowit
- LinkedIn: www.linkedin.com/company/knowit
- Instagram: www.instagram.com/weareknowit
- Address: Sveavägen 20, 111 57 Stockholm, Sweden
- Phone: +46 8 700 66 00
4. Geniusee
Geniusee builds custom fintech platforms for companies that need web, mobile, cloud, and integration skills. It has built banking apps, lending systems, electronic wallets, payment products, and AI-enabled fintech solutions.
The company covers product design, engineering, integration, and ongoing development. Swedish businesses get a local Nordic sales contact backed by a larger engineering team. Its AI skills also help when a product roadmap includes automation or data-driven features.
Key Facts
- Best for: Fintech products combining application development with AI or cloud engineering
- Core services: Software engineering, web and mobile development, integrations, AI, digital transformation
- Specialization: Banking, e-wallets, lending, fintech applications
Contact Information
- Website: geniusee.com
- E-mail: moc.eesuineg@ofni
- Facebook: www.facebook.com/geniuseesoftware
- LinkedIn: www.linkedin.com/company/geniusee
- Instagram: www.instagram.com/geniusee_software
- Address: Epicenter, Malmskillnadsgatan 44a, 111 57 Stockholm, Sweden
- Phone: +46 72 837 63 91
5. Netlight
Netlight does a lot of work for financial-services firms in banking, credit, payments, and wealth management. It also covers AML, KYC, and the modernization of financial platforms. Its consultants focus on software engineering and technology transformation, and they handle complex architecture, core migrations, regulatory processes, and customer-facing services.
Netlight reports clients among banks, insurers, pension organizations, payment providers, and fintech startups.
Key Facts
- Best for: Complex financial technology programs requiring senior engineering consultants
- Core services: Software engineering, digital transformation, architecture, technology consulting
- Specialization: Banking, credit, payments, wealth, AML, KYC
Contact Information
- Website: www.netlight.com
- E-mail: moc.thgilten@selas
- LinkedIn: www.linkedin.com/company/netlight-consulting
- Instagram: www.instagram.com/netlightconsulting
- Address: Regeringsgatan 25, 111 53 Stockholm, Sweden
- Phone: +46 8 616 99 40
6. 4IRE
4IRE has a sales office in Stockholm and focuses its development work on financial technology. It builds digital banking and neobank products, payment software, investment and trading systems, and financial ERP. It also delivers KYC and AML features, stablecoin technology, and SEPA and SWIFT integrations.
The company also builds blockchain and AI-based infrastructure. That gives it a deeper fintech profile than a general software agency. It fits projects with financial transactions, regulated workflows, or blockchain parts.
Key Facts
- Best for: Fintech products involving payments, banking infrastructure, blockchain, or trading
- Core services: Financial software development, web and mobile engineering, blockchain, AI, integrations
- Specialization: Neobanks, payments, investment technology, KYC/AML, stablecoins
Contact Information
- Website: 4irelabs.com
- E-mail: moc.sbaleri4@ph
- Twitter: x.com/4irelabs
- LinkedIn: www.linkedin.com/company/4ire
- Instagram: www.instagram.com/4irelabs
- Address: Hovslagargatan 5, 111 48 Stockholm, Sweden
- Phone: +351 966 223 759
7. Tieto
Tieto offers technology consulting and software development, and runs a dedicated banking technology business, Tieto Banktech. Its financial software covers payments, cards, lending and finance, and savings and wealth. It also offers financial crime prevention and modular banking platforms.
Tieto works widely across Nordic and European banking. It suits large infrastructure and modernization programs better than a simple consumer app. Banks can also draw on its cloud, data, AI, and software engineering services in transformation projects.
Key Facts
- Best for: Banks modernizing core technology and financial infrastructure
- Core services: Banking software, software development, cloud, data and AI, technology consulting
- Financial services unit: Tieto Banktech
- Specialization: Payments, cards, lending, wealth, financial crime prevention
Contact Information
- Website: www.tieto.com
- E-mail: moc.oteit@ofni
- LinkedIn: www.linkedin.com/company/tieto
- Instagram: www.instagram.com/tietoglobal
- Address: Gustav III:s Boulevard 130, SE-16903 Solna, Sweden
- Phone: +46104810000
8. Softhouse
Softhouse is a Swedish software consultancy with offices across the country and hands-on experience in finance. It works with banks, insurers, and fintech companies on software development, API integration, cloud, and DevOps. It also covers data analytics, cybersecurity, and regulatory requirements. Its teams take a product from exploration and design through development, deployment, and maintenance.
Softhouse has grown its banking and insurance expertise through acquisitions. It keeps long-term relationships with fintech customers, including Fortnox.
Key Facts
- Best for: Swedish financial businesses needing long-term software engineering support
- Core services: Custom software development, cloud, APIs, DevOps, data analytics, security
- Industries: Banking, insurance, fintech
- Location: Multiple offices across Sweden
Contact Information
- Website: www.softhouse.se
- E-mail: es.esuohtfos@olleh
- LinkedIn: www.linkedin.com/company/softhouse
- Instagram: www.instagram.com/lifeatsofthouse
- Address: Carlsgatan 12 A, Floor 5B, 211 20 Malmo
- Phone: +46 40 664 39 00
9. Sigma Software
Sigma Software has a Stockholm office and dedicated digital banking and fintech engineering services. It builds digital banking platforms, cloud-native banking systems, lending technology, and neobank products. It also works on RegTech and software for each step of the financial customer journey.
The company offers custom development, testing, integration, and ongoing support. Swedish clients get a local contact in Stockholm, while larger engineering teams take on big product builds or modernization work.
Key Facts
- Best for: Digital banking platforms and larger fintech engineering programs
- Core services: Custom software development, digital banking, testing, integration, support
- Specialization: Banking, lending, neobanks, RegTech
Contact Information
- Website: sigma.software
- E-mail: erawtfos.amgis@ofni
- Facebook: www.facebook.com/SIGMASOFTWAREGROUP
- LinkedIn: www.linkedin.com/company/sigma-software-page
- Instagram: www.instagram.com/sigma_software
- Address: Hornsgatan 1, 118 46 Stockholm, Sweden
- Phone: +46 70 600 42 49
10. Pearl Fintech
Pearl Fintech works only on IT for banking and finance, not on finance as one sector among many. It develops systems and implements and adapts international banking systems. It also works on core banking, payment-system integration, and internet banking.
The company works with SAP-based core banking and provides technology services to Swedish banks. Its central Stockholm office and narrow focus suit banks dealing with banking platforms, integrations, and long-term system development.
Key Facts
- Best for: Banking system development and core banking projects
- Core services: System development, banking-system implementation, integration, internet banking
- Specialization: Banking and finance
Contact Information
- Website: pearlfintech.se
- E-mail: es.puorglraep@hcetniflraep
- Address: Luntmakargatan 46, 5th floor, 111 37 Stockholm, Sweden
- Phone: +46 (0)8 440 36 70
11. Consid
Consid has a large Swedish presence and is growing its work with banks and other financial firms. For this sector it offers software development, data and analytics, cybersecurity, and AI. It also covers digital customer experience and business transformation.
Consid has maintained and developed in-house IT systems for Sveriges Riksbank, and built new ones. Its Stockholm office offers system development, architecture, QA, data services, and project management. Financial firms can get several disciplines from one Swedish consultancy.
Key Facts
- Best for: Swedish financial institutions with broad IT transformation requirements
- Core services: Software development, data and analytics, cybersecurity, AI, QA, IT architecture
- Industries: Banking and financial services, among other sectors
- Location: Stockholm and multiple Swedish offices
Contact Information
- Website: www.consid.com
- E-mail: es.disnoc@ofni
- Facebook: www.facebook.com/consid.se
- LinkedIn: www.linkedin.com/company/consid-ab
- Instagram: www.instagram.com/consid_ab
- Address: Kungsgatan 2, 111 43 Stockholm, Sweden
- Phone: +4636-120210
12. HiQ
HiQ has run software engineering teams in Stockholm for many years and knows transaction-heavy financial services. Together with Bankgirot, it developed the IT solution behind Swish, one of Sweden's most widely used mobile payment services.
Its Stockholm teams cover system development, full-stack engineering, testing, UX, AI, and DevOps, including banking assignments. HiQ can build both customer-facing financial products and the systems that run behind them.
Key Facts
- Best for: Payment, banking, and transaction-oriented software projects
- Core services: System development, full-stack development, testing, UX, AI, DevOps
- Relevant experience: Development of technology supporting Swish
Contact Information
- Website: hiq.se
- E-mail: es.qih@mlohkcots.ofni
- Facebook: www.facebook.com/HiQSverige
- LinkedIn: www.linkedin.com/company/hiq
- Instagram: www.instagram.com/hiqsweden
- Address: Katarinavägen 15, 116 45 Stockholm, Sweden
- Phone: +46 (0)8 588 900 00
13. Develit
Develit builds custom software from its Stockholm office and lists fintech among its industries. It builds enterprise and web software, mobile apps, and API integrations. It also works on blockchain, AI, QA, cloud infrastructure, and cybersecurity.
The company covers the whole development cycle, from consulting and architecture to development, testing, deployment, and maintenance. Fintech projects that need several engineering skills, but not a banking-only vendor, can find that useful.
Key Facts
- Best for: Custom fintech applications requiring broad engineering capabilities
- Core services: Custom software, mobile apps, web development, integrations, AI, blockchain, testing
- Industry expertise: Fintech
Contact Information
- Website: develit.se
- E-mail: es.tileved@selas
- Facebook: www.facebook.com/Develit
- LinkedIn: www.linkedin.com/company/develit
- Instagram: www.instagram.com/develit.se
- Address: Lindhagensgatan 76, 112 18 Stockholm, Sweden
- Phone: 08-128 608 19
14. Code Horizon
Code Horizon is a Stockholm software company that works in finance and several other tech-focused industries. It builds custom applications and web platforms. It also provides cloud development, DevOps, infrastructure, architecture planning, and technical support from concept to deployment.
Finance is one of the sectors Code Horizon names directly. It fits smaller financial software projects where custom code, cloud architecture, and deployment support need to stay closely linked.
Key Facts
- Best for: Focused finance software projects and custom platforms
- Core services: Custom software development, cloud solutions, DevOps, infrastructure, web development
- Industry expertise: Finance
Contact Information
- Website: www.codehorizon.se
- E-mail: es.nozirohedoc@ofni
- Phone: +46 72 373 73 55
15. B3 Consulting Group
B3 Consulting Group is a Swedish technology and management consultancy with a financial-services arm, B3 Financial Consulting. It helps banks, insurers, and asset managers with digital transformation, system implementation, and architecture. It also runs business-critical IT and regulatory change. Its financial work covers ISO 20022, T2S, PEGA, SimCorp, and Lumera.
Through its business units, B3 also offers system development, mobile apps, cloud, data engineering, AI, testing, and architecture. It is based in Stockholm with consultants across Sweden. Financial firms that need both software engineering and banking know-how can get both here.
Key Facts
- Best for: Banking and financial-sector transformation projects
- Core services: Software development, system architecture, cloud, data, AI, testing, digital transformation
- Specialization: Banking, finance, insurance, asset management, regulatory transformation
Contact Information
- Website: b3.se
- E-mail: es.3b@ofni
- Facebook: www.facebook.com/B3consulting.est2003
- LinkedIn: www.linkedin.com/company/b3it
- Instagram: www.instagram.com/b3_consulting
- Address: Wallingatan 2, 111 60 Stockholm, Sweden
- Phone: +46 8 410 143 40
Conclusion
Sweden offers a strong mix of local software consultancies, fintech specialists, and international development partners with experience in banking, payments, lending, wealth management, financial infrastructure, AI, and digital transformation. The right choice depends on the project scope: established banks may need large-scale modernization and integration expertise, while fintech startups often benefit more from product-focused teams that can handle strategy, UX, engineering, compliance-sensitive workflows, and ongoing development within one engagement.
For companies looking for a partner with a dedicated fintech focus, Itexus stands out for its experience across digital banking, payment systems, lending platforms, investment and wealth management software, financial integrations, and AI-enabled solutions. Its ability to combine product engineering with QA, DevOps, data, and AI services makes it suitable for both new fintech products and modernization of existing financial platforms.