Legacy software can continue supporting an organization for years, but outdated architecture, disconnected databases, slow applications, and difficult maintenance can eventually limit growth. Modernization provides a way to improve these systems without necessarily replacing everything at once.
Businesses looking for a software development company in Saudi Arabia can choose from providers offering application modernization, custom development, cloud migration, system integration, API development, and software re-engineering.
The right partner depends on the age of the existing system, technology stack, data structure, integrations, security requirements, and modernization goals. Here are 14 companies serving the Saudi market with capabilities relevant to legacy software modernization.
1. Apptunix Saudi Arabia: Top Software Development Company
Apptunix helps organizations modernize legacy software development in Saudi Arabia by assessing existing applications, identifying technical limitations, redesigning outdated components, and connecting modern systems with existing infrastructure.With 13+ years of experience and 3,000+ projects delivered globally, Apptunix works across custom software, enterprise applications, SaaS platforms, ERP and CRM systems, mobile applications, APIs, and cloud-based products.
For organizations asking how to modernize legacy software without disrupting existing operations, Apptunix can approach modernization incrementally rather than treating every legacy system as a complete rebuild.
Its modernization capabilities include:
- Legacy application modernization
- Custom software re-engineering
- Monolith-to-modern architecture migration
- API and third-party integrations
- Cloud application modernization
- ERP and CRM modernization
- Database modernization
- Mobile and web application upgrades
- AI-powered software enhancement
- Arabic and RTL-ready interface modernization
- Software maintenance and continuous improvement
Apptunix can support different modernization strategies, including replatforming, refactoring, rebuilding, replacing individual modules, or gradually moving functionality into newer architecture.
This makes the approach suitable for businesses that want to preserve valuable legacy functionality while improving performance, security, scalability, and user experience.
2. Hexalyze
Hexalyze is one of the companies specifically listed by Clutch under application modernization services in Saudi Arabia. Its current profile identifies enterprise application modernization and software modernization among its services.Its modernization-related capabilities include:
- Enterprise application modernization
- Custom software development
- ERP consulting
- ECM consulting
- Mobile applications
- Robotic process automation
- Web development
3. Altkom Software
Altkom Software has a Riyadh presence and is currently listed by Clutch with 20% enterprise application modernization and 45% custom software development in its service mix.Its capabilities include:
- Application modernization
- Custom software development
- Full-stack development
- Cloud consulting
- Mobile applications
- Software architecture
4. Excellent Webworld
Excellent Webworld has a Dammam presence and is currently listed by Clutch with enterprise application modernization, custom software development, cloud consulting, IoT, mobile, and web development services.Its modernization-related work can involve:
- Legacy application upgrades
- Custom software
- Cloud solutions
- Web applications
- Mobile applications
- IoT integrations
- AI development
5. SayOne Technologies
SayOne Technologies has a Riyadh presence and is listed by Clutch with enterprise application modernization alongside custom software, cloud, web, mobile, and AI-related services.Its relevant capabilities include:
- Enterprise application modernization
- Custom software development
- Cloud services
- Web development
- Mobile applications
- AI and automation
6. Sumerge
Sumerge has a Riyadh presence and is listed by Clutch for enterprise application modernization, custom software development, enterprise content management, cloud consulting, and IT strategy.Its services include:
- Application modernization
- Enterprise content management
- Custom software
- Cloud consulting
- IT strategy
- Business intelligence
7. Oivan
Oivan has a Riyadh presence and provides custom software, web development, cybersecurity, mobile development, application management, cloud consulting, and UX/UI services.For modernization projects, its capabilities can support:
- Application redevelopment
- Custom software
- Application management
- Cloud migration
- Cybersecurity
- Web modernization
- UX/UI improvements
8. Aegeantic
Aegeantic is based in Riyadh and offers custom software engineering alongside API development, application management, cloud consulting, CRM integration, microservices architecture, and digital engineering.Its modernization-related capabilities include:
- API development
- Microservices architecture
- Custom middleware
- CRM integration
- Cloud consulting
- Application support
- Full-stack engineering
9. Horizon Information Technology
Horizon Information Technology is a Riyadh-based provider listed by Clutch for custom software development, mobile applications, web development, and low-code development. Its profile also highlights custom applications and ERP systems.Its capabilities can support modernization involving:
- ERP systems
- Custom applications
- Web platforms
- Mobile software
- Low-code development
- Application redesign
10. Tiso Studio
Tiso Studio is based in Jeddah and is listed by Clutch for custom software, mobile applications, UX/UI design, web design, and web development.Its services can support modernization projects requiring:
- Custom application development
- Web modernization
- Mobile applications
- UX/UI redesign
- Frontend development
- Digital product improvements
11. TEDMOB
TEDMOB has a Riyadh presence and provides custom software, web and mobile development, AI, API development, UX/UI, and digital strategy services.Its modernization capabilities can include:
- Custom software redevelopment
- Web modernization
- Mobile applications
- API development
- AI integration
- UX/UI improvements
12. BI-Technologies
BI-Technologies is a Riyadh-based software provider with a strong custom software focus. Its current Clutch listing also includes ERP consulting and systems integration.Its capabilities include:
- Custom software development
- ERP consulting
- System integration
- Mobile applications
- Enterprise software
13. Spectrum Future Technology
Spectrum Future Technology is based in Al Khobar and provides custom software, AI, web, mobile, IT staffing, and integration-related services.Its capabilities can support modernization through:
- Custom software development
- AI-powered automation
- Web applications
- Mobile applications
- System integration
- IT staffing
14. Brains Valley Information Technology
Brains Valley Information Technology operates in Riyadh and Jeddah and is listed by Clutch for mobile application development, custom software, UX/UI, web development, and ERP consulting.Its relevant capabilities include:
- Custom software
- ERP consulting
- Mobile development
- Web applications
- UX/UI design
- Application redevelopment