South Korea has a mature financial technology market with developers working across digital banking, capital markets, payments, lending, AI, and financial infrastructure. This list covers both Korean financial IT specialists and international development companies with demonstrated work in the South Korean market, helping banks, fintech companies, and financial institutions compare different technical capabilities.
1. Itexus
Itexus develops custom fintech software for banking, payments, trading, lending, wealth management, and investment businesses. Its services cover product discovery, custom development, fintech app development, cloud engineering, legacy modernization, QA, integrations, and ongoing support for complex financial platforms.
The company has worked with a South Korean fintech business on an AI-based financial data management platform designed for banks and financial institutions. The project included frontend development, API integration, analytics, reporting, and visualization of large financial datasets. Itexus also builds digital banking platforms, wallets, brokerage systems, automated trading products, and financial analytics solutions.
Key Facts
- Best for: Custom fintech products and complex financial platforms
- Core services: Fintech software development, digital banking, payments, trading platforms, lending software, AI, integrations, cloud engineering
- South Korea experience: Development work for a South Korean fintech company serving financial institutions
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: Żurawia 6/12/lok 766, 00-503 Warszawa, Poland
2. Samsung SDS
Samsung SDS works with banks, insurance companies, card providers, securities businesses, and other financial institutions on large digital transformation programs. Its digital finance offering combines financial platforms with AI, blockchain, cloud, data technologies, automation, and customer-facing digital channels.
Financial projects include blockchain-based loan platforms, AI-powered compliance processes, insurance automation, and cloud infrastructure for regulated financial environments. In 2026, Samsung SDS was also selected for Woori Bank's large-scale AI agent initiative covering corporate lending, asset management, internal controls, customer service, and process automation.
Key Facts
- Best for: Large banks and enterprise financial transformation
- Core services: Digital finance platforms, AI, blockchain, cloud, financial infrastructure, automation
Contact Information
- Website: www.samsungsds.com
- E-mail: moc.gnusmas@sds.tcatnoc
- Facebook: www.facebook.com/samsungsds
- Twitter: x.com/samsungsds
- LinkedIn: www.linkedin.com/company/samsung-sds
- Instagram: www.instagram.com/samsung.sds
- Address: 125 Olympic-ro 35-gil, Songpa-gu, Seoul, Republic of Korea
- Phone: +82-2-6155-3114
3. LG CNS
LG CNS provides technology development and transformation services for Korean banks and financial institutions. Its finance practice works on next-generation banking systems, mobile banking, MyData platforms, AI-powered financial product recommendations, customer-service chatbots, cloud transformation, and modernization of existing financial infrastructure.
The company develops international banking systems for Korean financial groups. Its project history includes work for KB Kookmin Bank, Shinhan Bank, Hana Bank, NH Nonghyup Bank, Woori Bank, the Bank of Korea, and other major institutions.
Key Facts
- Best for: Enterprise banking platforms and financial AX projects
- Core services: Banking systems, mobile banking, MyData, AI, cloud, data platforms, IT consulting
Contact Information
- Website: www.lgcns.com
- E-mail: moc.sncgl@yriuqni
- Facebook: www.facebook.com/lgcnskorea
- LinkedIn: www.linkedin.com/company/lgcns
- Instagram: www.instagram.com/lgcns\_kr
- Address: E13/E14, 71 Magokjungang 8-ro, Gangseo-gu, Seoul, Republic of Korea
4. Koscom
Koscom develops and operates technology infrastructure for South Korea's capital markets and financial investment sector. Its systems support securities firms, futures businesses, asset managers, exchanges, and other financial organizations requiring trading, market data, settlement, and investment technology.
Its financial IT portfolio includes PowerBase outsourcing services, dealing systems, market infrastructure, financial information services, disaster recovery, networks, digital certificates, and technology development for securities businesses. Koscom also works with AI, big data, blockchain, cloud, fintech, and robo-advisory technologies through its financial technology initiatives.
Key Facts
- Best for: Capital markets and securities technology
- Core services: Trading systems, financial IT outsourcing, market data, financial infrastructure, fintech R&D
Contact Information
- Website: www.koscom.co.kr
- E-mail: rk.oc.mocsok@ziblabolg
- Address: 21 Yeouinaru-ro 4gil (Yeouido-dong), Yeongdeungpo-gu, Seoul, Korea 07330
- Phone: +82-2-767-8151
5. FPT Software Korea
FPT Software has an established South Korean operation with offices in Seoul, Pangyo, and Daegu. Its Korean business combines local teams with offshore engineering capacity for software development, cloud, ERP, AI, and digital transformation projects.
Financial services have become an important part of its Korean presence. The company opened its Daegu office with a stated focus on supporting regional financial-sector customers, including DGB Financial Group and IM Bank. In 2026, FPT also expanded cooperation with Shinhan Bank around AI-driven digital finance, fintech innovation, and next-generation banking technologies.
Key Facts
- Best for: Financial institutions combining local Korean delivery with offshore development
- Core services: Software development, AI, digital banking technology, cloud, ERP, digital transformation
- Locations: Seoul, Pangyo, Daegu
Contact Information
- Website: fptsoftware.com
- E-mail: moc.tpf@tcatnoc.rkf
- Twitter: x.com/fpt\_software
- LinkedIn: www.linkedin.com/company/fpt-software
- Address: 7F, Sewoo Building, 115, Yeouigongwon-ro, Yeongdeungpo-gu, Seoul
- Phone: +82-2-567-6650
6. SK AX
SK AX provides digital and AI transformation services across the Korean financial sector. Its financial technology work covers core banking, information systems, next-generation platforms, digital channels, infrastructure, cloud, and AI-based financial services.
The company handles large-scale finance projects from system design and construction through application development and infrastructure implementation. Its broader financial offering also includes market intelligence, AI contact centers, operational automation, and technologies designed to support customer-facing financial services.
Key Facts
- Best for: Core banking modernization and large financial IT programs
- Core services: Core banking, financial systems development, AI, cloud, digital transformation
- Location: Seongnam, with additional Korean offices including Seoul and Pangyo
Contact Information
- Website: www.skax.co.kr
- E-mail: moc.ks@gnitekramxa
- Facebook: www.facebook.com/skaxofficial
- LinkedIn: www.linkedin.com/company/skax
- Address: (13558) SK u-Tower, Seongnam-daero 343beon-gil 9, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
- Phone: +82-2-6400-0114
7. KB Data Systems
KB Data Systems is a financial IT and digital transformation company within KB Financial Group. Its development experience spans banking, cards, capital, and other financial businesses, with work on both domestic and international systems.
The company develops finance-specific software solutions and provides managed cloud services, SaaS, system maintenance, and digital technology services involving cloud, big data, and AI. It has also delivered next-generation systems for KB Financial affiliates and supports overseas financial IT initiatives through KB's international network.
Key Facts
- Best for: Financial IT systems and digital transformation within complex banking environments
- Core services: Financial software development, cloud, SaaS, system maintenance, AI, data
Contact Information
- Website: www.kbds.co.kr
- E-mail: moc.gfbk@10eelkj
- Phone: +82-2-3215-6036
8. Korea Financial IT
Korea Financial IT, also known as KOFIT, concentrates on technology for securities firms and capital-market businesses. Its offering includes trading platforms, financial information systems, analytical software, automated trading technologies, risk-management tools, and financial IT consulting.
The company develops web, mobile, and desktop trading components as well as real-time financial data solutions. Its R&D activities cover machine learning applications such as robo-advisory, stock selection, algorithmic trading, and investment analysis, making the company particularly relevant to brokerage and investment technology projects.
Key Facts
- Best for: Brokerage, trading, and capital-market fintech
- Core services: Trading software, financial data, automated trading, analytics, financial IT services
- Location: Yeouido, Seoul, South Korea
Contact Information
- Website: www.kfits.co.kr
- E-mail: rk.oc.stifk@stifk
- Address: 4F, 23, Yeouidaebang-ro 69-gil, Yeongdeungpo-gu, Seoul
- Phone: +82-2-3775-3608
9. Woori FIS
Woori FIS provides financial IT development, system integration, infrastructure, data services, and IT outsourcing for companies across Woori Financial Group. Its teams manage financial systems from project planning and development to ongoing operation.
The company develops technology for overseas banking operations. Its global ICT work includes banking systems, financial network integrations, mobile banking, and standardized systems supporting Woori Bank branches and subsidiaries outside South Korea. For domestic projects, its experience covers large financial platforms and long-term operation of banking information systems.
Key Facts
- Best for: Banking system integration and long-term financial IT operations
- Core services: Financial SI, IT outsourcing, banking platforms, mobile banking, infrastructure
Contact Information
- Website: woorifis.com
- E-mail: moc.sifiroow@sifiroow
- Address: Woori FIS, 17, World Cup buk-ro 60-gil, Mapo-gu, Seoul
- Phone: +82-2-3151-7000
10. Beyond Digital
Beyond Digital, operating as BD, builds digital financial systems for banks, card companies, insurers, and other Korean financial organizations. Its project portfolio includes mobile banking, internet banking, MyData, Open Banking, tablet banking, financial super apps, digital lending processes, and ongoing financial platform maintenance.
Recent project examples include the redevelopment of Woori WON Banking, IBK tablet banking, KB Pay system operation, KB banking platforms, and digital services for Korean financial institutions. The company's work covers both customer-facing financial applications and the integration layers behind them.
Key Facts
- Best for: Digital banking channels and customer-facing financial applications
- Core services: Mobile banking, internet banking, MyData, Open Banking, financial SI, system maintenance
Contact Information
- Website: www.beyondigital.co.kr
- E-mail: fin\moc.mgideulb@zib_
- Address: Room 305, Building R, Daeryung Post Tower 8, 43, Digital-ro 26-gil, Guro-gu, Seoul
- Phone: +82-2-2025-4999
11. IBK System
IBK System has worked in financial IT since 1991 and provides development and maintenance services for banks and non-bank financial institutions. Its experience includes lending systems, card technology, bancassurance, risk management, capital markets, insurance, securities, and financial platforms.
The company handles system integration and financial IT outsourcing. Recent work has included financial system development for IBK and other institutions, alongside projects involving investment, capital, retirement pensions, supply-chain finance, and financial reporting systems.
Key Facts
- Best for: Banking back-office systems and specialized financial workflows
- Core services: Lending systems, risk management, cards, insurance, securities, financial SI
Contact Information
- Website: www.ibksystem.co.kr
- Address: 11th, 12th, 13th floor, Newseoul Bldg. 62-7 Chungmuro 2-GA Jung-gu Seoul
- Phone: +82-2-3407-6600
12. Neoframe
Neoframe develops financial IT platforms for securities companies, exchanges, and trading businesses. Its technology covers market data processing, brokerage middleware, low-latency messaging, exchange connectivity, authentication, cloud infrastructure, APIs, and trading information systems.
The company's SmartCS product line includes exchange and broker platforms, cloud scaling architecture, market-data infrastructure, monitoring tools, and API management components. Its focus on high-volume financial data and transaction infrastructure makes it particularly relevant to trading and brokerage technology rather than general-purpose application development.
Key Facts
- Best for: Securities platforms, exchanges, and trading infrastructure
- Core services: Brokerage middleware, market data, trading systems, cloud platforms, OpenAPI
- Location: Yeongdeungpo-gu, Seoul, South Korea
Contact Information
- Website: neoframe.com
- E-mail: moc.emarfoen@selas
- Address: 8F, Center Building, 6 Yeouidaebang-ro 65-gil, Yeongdeungpo-gu, Seoul
- Phone: +82-2-579-0679
13. eNext-I
eNext-I develops financial IT systems with a particularly strong focus on lending and risk-management workflows. Its work covers credit assessment, loan screening, collateral management, interest-rate processes, early-warning systems, IFRS-related applications, and financial system maintenance.
The company has delivered projects for major Korean banks and financial institutions including Shinhan Bank, NH Nonghyup Bank, KB Kookmin Bank, IBK, and Hana Bank. Development capabilities include Spring Boot-based next-generation systems, financial workflow applications, customer portals, and custom Java frameworks for finance-specific interfaces.
Key Facts
- Best for: Lending, credit assessment, and financial risk systems
- Core services: Financial SI, loan systems, credit assessment, risk management, system maintenance
Contact Information
- Website: www.enext.co.kr
- E-mail: rk.oc.txene@5002txene
- Address: Room 407, Building 3, Ace Hitech City, 775 Gyeongin-ro, Yeongdeungpo-gu, Seoul
- Phone: +82-2-2038-8608
14. KlausDX
KlausDX develops customized financial SI systems using AI, data analytics, cloud architecture, and enterprise software technologies. Its financial practice works on risk detection, fraud prevention, operational automation, internal control, compliance monitoring, and algorithm-based decision-support tools.
The company develops digital asset infrastructure. Its platform work covers the issuance and trading of digital assets such as security tokens and NFTs, with open architecture and cloud-based deployment options for financial institutions and service providers. This combination makes KlausDX relevant to financial organizations exploring both traditional system modernization and newer digital-asset use cases.
Key Facts
- Best for: AI-based financial SI and digital asset infrastructure
- Core services: Financial system development, AI, risk and fraud systems, automation, digital asset platforms
Contact Information
- Website: klausdx.co.kr
- Address: 5th Floor, Suite 516, Indukwon LDC Biz Tower, 47, Heungan-daero 427beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, South Korea
15. Inance
Inance focuses on software infrastructure for securities trading and capital-market applications. Its systems are designed for financial businesses that need high-speed processing of market data, automated order execution, institutional trading, and real-time financial information.
The product portfolio includes the XtM real-time data processing platform, K-PATS algorithmic server auto-order software, the Winning System for institutional financial product trading, liquidity-provision systems, and investment optimization technologies. Its clients include Korean securities firms and other financial market organizations.
Key Facts
- Best for: Algorithmic trading and securities software
- Core services: Trading platforms, automated ordering, market-data processing, institutional trading systems
- Location: Yeouido, Seoul, South Korea
Contact Information
- Website: www.inance.co.kr
- E-mail: rk.oc.ecnani@ecnani
- Address: 6F, 23, Yeouidaebang-ro 69-gil, Yeongdeungpo-gu, Seoul
- Phone: +82-2-761-4300
16. Shinhan DS
Shinhan DS is a South Korean financial IT company and a technology subsidiary of Shinhan Financial Group. It provides system integration, system management, IT outsourcing, consulting, infrastructure operations, and software development for financial organizations. Its development practice covers banking business systems, customer channels, financial product platforms, data management, and real-time analytics.
The company is expanding its work in AI, cloud, blockchain, big data, Open APIs, and fintech services. Shinhan DS develops and operates ICT systems across Shinhan Financial Group and has experience with digital financial services, mobile solutions, financial network integrations, and non-face-to-face authentication technology.
Key Facts
- Best for: Banking IT systems and financial digital transformation
- Core services: Financial system development, system integration, digital banking, cloud, AI, data, Open APIs
- Financial group: Technology subsidiary of Shinhan Financial Group
Contact Information
- Website: www.shinhands.co.kr
- Address: 29 Namdaemun-ro 10-gil, Jung-gu, Seoul 04540, South Korea
- Phone: +82-2-756-0056
17. Hana TI
Hana TI is the financial IT specialist of Hana Financial Group. Based in South Korea, it develops and manages technology used by Hana Bank, Hana Securities, Hana Card, Hana Capital, Hana Life, Hana Insurance, Hana Savings Bank, and other financial companies within the group. Its work spans financial IT systems, digital transformation, cloud infrastructure, information security, AI, and proprietary financial software solutions.
The company has developed its own 1Q ON financial technology suite. It includes a multi-finance core banking solution, APIs and enterprise application integration tools, AI-powered automation, authentication technologies, data solutions, and blockchain functionality for token issuance, management, and wallets.
Key Facts
- Best for: Core banking platforms and enterprise financial technology
- Core services: Core banking, financial software development, APIs, AI, cloud, authentication, blockchain
Contact Information
- Website: hanati.co.kr
- LinkedIn: www.linkedin.com/company/hana-ti
- Address: 5F, HFG Data Center, 167, Eco-ro, Seohae-gu, Incheon, 22742
- Phone: 02-2151-6400
18. Hanwha Systems
Hanwha Systems provides enterprise IT and system integration services for financial institutions in South Korea. Its financial technology practice draws on projects for insurance, securities, investment, and banking organizations and covers next-generation financial systems, core and information systems, retirement pensions, bancassurance, asset management, risk management, and security solutions.
Its financial digital transformation capabilities also extend to mobile applications, big data systems, and fintech service development. Hanwha Systems has worked with financial businesses including Hanwha Life, Hanwha General Insurance, and Hanwha Investment & Securities, while its ICT division operates directly from Seoul.
Key Facts
- Best for: Large-scale financial system integration and modernization
- Core services: Financial SI, next-generation systems, mobile finance, risk management, asset management, big data
Contact Information
- Website: www.hanwhasystems.com
- E-mail: moc.ahwnah@smetsysahwnah
- LinkedIn: www.linkedin.com/company/hanwha-systems
Conclusion
South Korea’s fintech software development market combines large enterprise IT providers with highly specialized teams focused on banking, payments, securities, trading, lending, and financial infrastructure. Companies such as Samsung SDS, LG CNS, Koscom, SK AX, and KB Data Systems are particularly suited to large institutional transformation projects, while more specialized providers can support trading platforms, lending systems, risk management, digital assets, and financial data solutions.
For companies that need a custom fintech product rather than a standardized enterprise platform, Itexus offers end-to-end development across digital banking, payments, lending, trading, wealth management, AI-driven financial tools, integrations, and cloud modernization. Its experience working with fintech businesses, including a project for a South Korean company, makes it a strong option for organizations looking to build or modernize financial software for the Korean market.