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 develops custom software for banks, fintech companies, brokers, investment firms, and other financial services organizations. Its work spans digital banking, payments, lending, trading, wealth management, financial analytics, KYC and KYB workflows, and core banking modernization.
The company is particularly relevant when a project involves more than a straightforward consumer app. Its portfolio includes digital wallets, brokerage platforms, investment technology, automated onboarding systems, and financial data products. It also provides fintech-focused engineering teams, product discovery, UI/UX, DevOps, AI implementation, QA, and modernization of existing financial platforms. Itexus operates internationally rather than through a Nairobi office, making it an option for Nairobi companies comfortable working 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: Żurawia 6/12/lok 776, 00-503, 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 Nairobi-headquartered financial technology software company with a long-standing focus on banking and financial institutions. Its product range covers core banking, microfinance, digital channels, switching, electronic payments, mobile financial services, investment management, and other financial infrastructure.
Unlike a general software studio that occasionally takes fintech projects, Craft Silicon operates primarily within the BFSI sector. Its Nairobi operation includes software development, implementation, QA, support, report development, and research teams. This makes the company particularly relevant to banks, microfinance institutions, and other established financial organizations that need configurable platforms rather than only a standalone mobile or web application.
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 combines custom financial software development with payment and banking technology. Headquartered on Mamlaka Road in Nairobi, the company works with financial institutions across multiple African markets and develops banking, mobile, internet, agency banking, payments, and supporting enterprise solutions.
Its financial sector offering is centered on integrated systems rather than isolated applications. Mobile and internet banking tools can connect with core banking systems and other third-party infrastructure, while its payments business adds another layer for companies dealing with transaction processing. Eclectics is also an authorized payment aggregator in Kenya, which makes its payments experience particularly relevant for projects that need a strong connection to 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
Founded in Nairobi in 2020, Tenz Technologies develops digital banking products and custom enterprise software for organizations in finance and other sectors. Its fintech capabilities include mobile banking, internet banking, agency banking, WhatsApp banking, payment gateways, automated reconciliation, lending systems, and agent management platforms.
Tenz is a useful option for institutions looking to modernize customer-facing banking channels while keeping them connected with existing operations. The company also handles requirements analysis, system architecture, software development, security validation, deployment, and user training. That combination supports both new financial products and digitization programs within 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-based product development studio that builds mobile and web applications for fintech, payments, SACCOs, ecommerce, and other sectors. Its fintech work includes payment applications, digital wallets, lending-related products, remittance technology, and M-Pesa integrations.
Published projects include DivPesa, a payment application integrating Deriv and M-Pesa APIs, as well as wallet and finance-related products such as AsanteTip and Oriems Sacco. Segue provides product discovery, UX/UI design, mobile development, web platforms, APIs, DevOps, and ongoing product iteration. Its Westlands location also gives Nairobi clients the option of onsite discovery and kickoff sessions.
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 develops bespoke software and provides fintech integration services from its Nairobi office. Its development work covers enterprise systems, mobile applications, web applications, and custom platforms, while its fintech offering focuses on payment service providers, payment integrations, ecommerce transactions, and customer onboarding.
The company can suit businesses that need financial functionality as part of a broader digital product rather than an entire core banking platform. Its mix of software engineering and payment integration work makes it relevant for marketplaces, platforms, merchants, and other businesses where payments form an important part of the application architecture.
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. Its development services cover backend and frontend applications, API-ready platforms, process automation, analytics, and ongoing software support.
Its positioning makes the company especially relevant to SMEs and growing organizations that need financial technology combined with broader operational software. Projects can extend beyond a payment feature into enterprise workflows, integrations, analytics, and internal systems, which gives Sababisha a broader scope than companies centered exclusively on payment gateway setup.
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 applications, web platforms, and payment integrations. Its fintech work includes integrations with M-Pesa, Airtel Money, Pesapal, SasaPay, card networks, banks, and custom payment APIs.
The company's portfolio also includes projects involving payment gateways and software development, making it more relevant to fintech buyers than a standard website agency. It can be considered for payment-enabled applications, ecommerce systems, fundraising platforms, or other products that need custom application development paired with 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 develops financial technology for banks, SACCOs, credit unions, and microfinance organizations. Its product portfolio includes core banking, mobile wallets, mobile and internet banking, agency banking, loan origination, payment switching, enterprise integration, general ledger functionality, and financial reporting.
Its focus on financial institutions makes it more appropriate for organizations replacing or extending banking infrastructure than for teams building a small standalone fintech MVP. The Nairobi office in Westlands provides 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 focuses specifically on financial institutions and develops 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.
That narrow industry focus can be valuable for institutions where banking workflows form the entire project rather than one module within a larger business application. The company maintains a Nairobi presence on Ngong Road and also operates in Uganda, giving it a regional East African orientation.
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 develops financial technology primarily for SACCOs and related organizations. Its core banking platform covers member management, loans, savings, dividends, transaction histories, audit trails, mobile access, and reporting.
The company also works on integrations with M-Pesa, banks, credit reference services, KRA, and identity systems. Its broader offering includes ERP, analytics, identity verification APIs, mobile banking, and USSD access. Based at Riara Business Center in Nairobi, Calwide is a particularly focused option for cooperative financial institutions rather than general-purpose 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 provides financial software products and implementation services from its Nairobi headquarters. Its portfolio includes core banking, microfinance systems, mobile banking, virtual banking, financial accounting, ecommerce, cheque truncation, and anti-money laundering technology.
The company's banking-oriented product set makes it most relevant to established financial organizations looking for specialized systems rather than consumer fintech startups developing an experimental MVP. Its anti-money laundering and accounting capabilities also complement customer-facing banking channels with back-office financial functionality.
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-based fintech company developing financial software for organizations including fund and investment management businesses. Its products are designed to integrate with existing financial systems, including core banking technology, accounting platforms, and payment gateways.
This integration-oriented approach is useful for organizations that are not replacing every part of their financial infrastructure at once. Instead, new reporting, investment, or financial applications can be connected with systems already in production. Innova also provides implementation support, which matters for financial institutions where data transfer and interoperability can be as important as the application 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.