Nairobi has one of Africa's most active financial technology markets, and its software ecosystem reflects that. The companies below cover custom fintech product development, digital banking, mobile money integrations, lending platforms, core banking systems, payments, and financial infrastructure. The selection follows the requested company-listicle structure and verification approach.
1. Itexus
Itexus builds custom software for banks, fintech companies, brokers, investment firms, and other financial services organizations. Its projects cover digital banking, payments, lending, trading, and wealth management. It also builds financial analytics, KYC and KYB workflows, and core banking modernization.
Itexus is a good fit when a project goes beyond a simple consumer app. It has built digital wallets, brokerage platforms, investment technology, automated onboarding systems, and financial data products. It also offers fintech engineering teams, product discovery, UI/UX, DevOps, AI implementation, and QA, and it modernizes existing financial platforms. Itexus works internationally and has no Nairobi office, so it suits Nairobi companies that are comfortable with a distributed development partner.
Key Facts
- Best for: Complex fintech products and regulated financial platforms
- Core services: Fintech software development, custom fintech development, fintech apps, product discovery, UI/UX, DevOps, QA, staff augmentation
- Specialization: Banking, payments, lending, trading, wealth management
- Project types: Digital banking, wallets, brokerage platforms, onboarding, financial analytics, platform modernization
- Delivery model: International software development partner
Contact Information
- Website: itexus.com
- Email: moc.suxeti@ofni
- Address: Twarda 14, 00-824 Warszawa, Poland
- LinkedIn: www.linkedin.com/company/itexus
- Facebook: www.facebook.com/itexus
- Twitter: x.com/ItexusSoft
- Instagram: www.instagram.com/itexus.soft
2. Craft Silicon
Craft Silicon is a financial technology software company headquartered in Nairobi, with a long focus on banks and financial institutions. Its products cover core banking, microfinance, digital channels, switching, and electronic payments. It also offers mobile financial services, investment management, and other financial infrastructure.
Unlike a general software studio that takes the odd fintech project, Craft Silicon works mainly in the BFSI sector. Its Nairobi teams handle software development, implementation, QA, support, report development, and research. It suits banks, microfinance institutions, and other established financial organizations that need configurable platforms, not just a standalone mobile or web app.
Key Facts
- Best for: Banks, microfinance institutions, and larger financial organizations
- Core services: Financial software development, implementation, support, QA
- Specialization: Core banking, microfinance, payments, digital channels
- Headquarters: Nairobi, Kenya
- Founded: 2000
Contact Information
- Website: www.craftsilicon.com
- Phone: +254 709 044333
- Email: moc.nocilistfarc@aynek.ofni
- Address: Craft Silicon Limited, Waiyaki Way, P.O. Box 13628-00800. Nairobi, Kenya
- LinkedIn: www.linkedin.com/company/craftsiliconglobal
- Facebook: www.facebook.com/CraftSiliconKE
- Twitter: x.com/CraftSiliconKE
3. Eclectics International
Eclectics International builds custom financial software and also offers payment and banking technology. Its headquarters are on Mamlaka Road in Nairobi, and it works with financial institutions in several African markets. It builds banking, mobile, internet, agency banking, payments, and supporting enterprise solutions.
Eclectics focuses on connected systems rather than isolated apps. Its mobile and internet banking tools can link to core banking systems and other third-party infrastructure, and its payments business handles transaction processing. Eclectics is also an authorized payment aggregator in Kenya. That gives it hands-on experience for projects that must plug into the local financial ecosystem.
Key Facts
- Best for: Banks and financial institutions operating across African markets
- Core services: Financial software, banking channels, system integration, payment services
- Specialization: Agency banking, mobile banking, internet banking, payments
- Headquarters: Nairobi, Kenya
- Market reach: Multiple African countries
Contact Information
- Website: eclectics.io
- Phone: +254 709 646 000
- Email: oi.citcelce@suotklat
- Address: 3rd Floor, Utumishi Co-op House, Mamlaka Road, Nairobi, Kenya
- LinkedIn: www.linkedin.com/company/eclecticsio
- Facebook: www.facebook.com/eclecticsio
- Twitter: x.com/eclecticsio
4. Tenz Technologies
Tenz Technologies was founded in Nairobi in 2020 and builds digital banking products and custom enterprise software for finance and other sectors. In fintech, it builds mobile, internet, agency, and WhatsApp banking. It also delivers payment gateways, automated reconciliation, lending systems, and agent management platforms.
Tenz helps institutions modernize customer-facing banking channels while keeping them linked to existing operations. The team covers requirements analysis, system architecture, development, security validation, deployment, and user training. That supports both new financial products and digitization programs at established institutions.
Key Facts
- Best for: Digital banking and financial operations projects
- Core services: Custom software, digital banking, consulting, integration, technical support
- Specialization: Lending, reconciliation, banking channels, agent management
- Founded: 2020
- Location: Nairobi, Kenya
Contact Information
- Website: www.tenztechnologies.com
- Phone: +254 723 686428
- Email: moc.seigolonhcetznet@ofni
5. Segue Interactive
Segue Interactive is a Nairobi product development studio that builds mobile and web apps for fintech, payments, SACCOs, ecommerce, and other sectors. Its fintech work includes payment apps, digital wallets, lending products, remittance technology, and M-Pesa integrations.
Its published projects include DivPesa, a payment app that integrates the Deriv and M-Pesa APIs. Other wallet and finance products include AsanteTip and Oriems Sacco. Segue offers product discovery, UX/UI design, mobile development, web platforms, APIs, DevOps, and ongoing product updates. Its Westlands office lets Nairobi clients hold discovery and kickoff sessions in person.
Key Facts
- Best for: Fintech startups and companies developing consumer-facing products
- Core services: Product discovery, UX/UI, mobile apps, web development, APIs, DevOps
- Specialization: Payments, wallets, SACCO software, M-Pesa integrations
- Location: Westlands, Nairobi, Kenya
- Project approach: Product studio model
Contact Information
- Website: segueinteractive.com
- Phone: +254 795 112075
- Email: moc.evitcaretnieuges@iagnum
6. Swift Hailing
Swift Hailing builds bespoke software and provides fintech integration services from its Nairobi office. It builds enterprise systems, mobile apps, web apps, and custom platforms. On the fintech side, it works with payment service providers, payment integrations, ecommerce transactions, and customer onboarding.
The company suits businesses that need financial features inside a wider digital product, not a full core banking platform. Marketplaces, platforms, merchants, and other businesses where payments are central to the app can use its mix of software engineering and payment integration.
Key Facts
- Best for: Custom platforms requiring integrated payment functionality
- Core services: Software development, fintech integration, web apps, mobile apps
- Specialization: Payments and customer onboarding
- Location: Westlands, Nairobi, Kenya
Contact Information
- Website: swifthailing.com
- Phone: +254 768 446 249
- Email: moc.gniliahtfiws@ofni
- Address: 136 Manyani East Road, off Waiyaki Way, Westlands, Nairobi.
- LinkedIn: www.linkedin.com/company/swifthailing
7. Sababisha Solutions
Sababisha Solutions is a Nairobi technology firm focused on fintech, consulting, enterprise systems, and custom software development. It builds backend and frontend applications, API-ready platforms, process automation, and analytics, and it provides ongoing software support.
The company suits SMEs and growing organizations that need fintech alongside wider operational software. Projects can go beyond a payment feature into enterprise workflows, integrations, analytics, and internal systems. That is a wider scope than firms that only set up payment gateways.
Key Facts
- Best for: SMEs needing custom fintech and enterprise applications
- Core services: Custom software, enterprise systems, consulting, analytics
- Specialization: Fintech solutions and business process systems
- Location: Nairobi, Kenya
Contact Information
- Website: sababisha.com
- Phone: +254718101532
- Email: moc.ahsibabas@troppus
- Address: Ngong, Nairobi, Zambia Road, Along Wakaba Close, Mega-Hill Court, Suite B3
- Twitter: x.com/sababisha_SSL
- Instagram: www.instagram.com/sababisha.solutions
8. Webinc Kenya Limited
Webinc Kenya Limited builds custom software, native mobile apps, web platforms, and payment integrations. In fintech, it connects products to M-Pesa, Airtel Money, Pesapal, SasaPay, card networks, banks, and custom payment APIs.
Its past projects also include payment gateways and software development, so it is a better match for fintech buyers than a standard website agency. Consider it for payment-enabled apps, ecommerce systems, fundraising platforms, or other products that need custom development tied to local and international payment rails.
Key Facts
- Best for: Payment-enabled mobile and web applications
- Core services: Software development, mobile apps, cloud, payment integrations
- Specialization: Payment gateways and fintech integrations
- Market: Nairobi and the wider Kenyan market
Contact Information
- Website: webinckenyaltd.co.ke
- Phone: +254 797 032 544
- Email: ek.oc.dtlaynekcnibew@ofni
- Address: Viewpark Towers, Utali Lane, Nairobi, Kenya
9. Apex Softwares
Apex Softwares builds financial technology for banks, SACCOs, credit unions, and microfinance organizations. Its products include core banking, mobile wallets, mobile and internet banking, agency banking, and loan origination. It also offers payment switching, enterprise integration, general ledger functions, and financial reporting.
Because it focuses on financial institutions, Apex fits organizations that are replacing or extending banking infrastructure better than teams building a small standalone fintech MVP. Its Westlands office in Nairobi is a local base for implementations and support.
Key Facts
- Best for: Core banking and institutional fintech projects
- Core services: Banking software, integration, mobile channels, lending
- Specialization: MFIs, SACCOs, credit unions, commercial banks
- Location: Westlands, Nairobi, Kenya
Contact Information
- Website: apex-softwares.com
- Phone: +254 736 437 065
- Email: moc.serawtfos-xepa@ofni
- Address: Nairobi, Kenya, Westlands Business Park, 3rd Floor, Suite 305, Waiyaki Way, Westlands
10. SODETSO
SODETSO works only with financial institutions and builds banking technology for banks, SACCOs, microfinance providers, lending institutions, and savings groups. Its solutions include core banking, internet banking, mobile banking, agency banking, digital lending, and wallet technology.
This narrow focus helps institutions whose whole project is banking workflows, rather than one module inside a larger business app. SODETSO has a Nairobi office on Ngong Road and also operates in Uganda, which gives it a regional East African reach.
Key Facts
- Best for: Banking and lending institutions
- Core services: Financial software development and implementation
- Specialization: Core banking, digital lending, mobile and agency banking
- Location: Ngong Road, Nairobi, Kenya
Contact Information
- Website: sodetso.com
- Phone: +254 100 333 331
- Email: moc.ostedos@ofni
- Address: Ngong Road, Nairobi, Kanjokya Street, Kampala
11. Calwide Solutions Limited
Calwide Solutions builds financial technology mainly for SACCOs and related organizations. Its core banking platform handles member management, loans, savings, and dividends. It also covers transaction histories, audit trails, mobile access, and reporting.
The company builds integrations with M-Pesa, banks, credit reference services, KRA, and identity systems. It also offers ERP, analytics, identity verification APIs, mobile banking, and USSD access. Calwide is based at Riara Business Center in Nairobi and is a focused choice for cooperative financial institutions rather than general fintech startups.
Key Facts
- Best for: SACCO digitization and core banking
- Core services: Core banking, ERP, financial integrations, analytics
- Specialization: Loans, savings, member management, mobile banking
- Location: Nairobi, Kenya
Contact Information
- Website: calwide.co.ke
- Phone: +254 796 270 982
- Email: ek.oc.ediwlac@ofni
- Address: Riara Center, Block C, Suite 1, P.O. Box 61034-00200, Nairobi, Kenya
12. Extra Inch Technologies
Extra Inch Technologies sells and implements financial software from its Nairobi headquarters. Its products include core banking, microfinance systems, mobile banking, and virtual banking. It also offers financial accounting, ecommerce, cheque truncation, and anti-money laundering technology.
Its banking products suit established financial organizations that need specialized systems, more than consumer fintech startups testing an MVP. Its anti-money laundering and accounting tools add back-office functions to customer-facing banking channels.
Key Facts
- Best for: Banking and microfinance technology implementations
- Core services: Financial software products, implementation, support
- Specialization: Core banking, mobile banking, AML, financial accounting
- Location: Westlands, Nairobi, Kenya
Contact Information
- Website: extrainch.co.ke
- Phone: (+254) 770 661 242
- Email: ek.oc.hcniartxe@ofni
- Address: Westlands Bandari Plaza, Wood Vale Grove, P.O.Box 51555 - 00100
13. Innova
Innova is a Nairobi fintech company that builds financial software for organizations including fund and investment management businesses. Its products connect to existing financial systems such as core banking technology, accounting platforms, and payment gateways.
This helps organizations that are not replacing all their financial infrastructure at once. New reporting, investment, or financial apps can plug into systems already in production. Innova also provides implementation support. That matters for financial institutions, where data transfer and interoperability can count as much as the app itself.
Key Facts
- Best for: Financial system integration and investment-related software
- Core services: Fintech software, implementation, financial system integration
- Specialization: Fund and investment management technology
- Location: Kileleshwa, Nairobi, Kenya
Contact Information
- Website: www.innova.co.ke
- Phone: +254 786 280 038
- Email: ek.oc.avonni@ofni
- LinkedIn: www.linkedin.com/company/innova-limited
- Facebook: www.facebook.com/people/Innova/100076996848447
- Twitter: x.com/innovasystems
Conclusion
Nairobi's fintech development market covers a surprisingly broad range of needs, from payment integrations and mobile money to digital lending, core banking, investment platforms, and financial infrastructure. That variety gives businesses room to choose between teams focused on building new products quickly and providers equipped for heavier institutional systems.
The right fit depends less on the length of a service list and more on the realities of the project. Regulatory requirements, security, integration with existing banking infrastructure, scalability, and experience with local payment ecosystems all deserve close attention. For fintech products operating in Kenya, familiarity with mobile-first financial services and regional transaction flows can be just as important as strong software engineering.
Taken together, fintech software development companies in Nairobi offer options for early-stage products, modernization projects, and complex financial platforms. A careful match between technical capability, financial domain knowledge, and the intended product model is what ultimately separates a workable development partnership from a costly mismatch.