Top 24 Application Server Software SaaS Companies in May 2026

Linköping, Östergötland, Sweden

XIOS/3 supercharges SaaS for global performance and development agility. It leverages any existing code and increases the benefits of web open source technologies by facilitating edge computing (utilizing computing resources in the device edge), code reusability, faster time-to-market & improved user experience of web applications (edge acceleration), while lowering development & operational cost. XIOS/3 is an Edge Application Platform that enables developers, ISVs, Enterprises and IT consultants to standardize their own code as well as open source components into reusable & maintainable building blocks that also becomes edge computing enabled. XIOS/3 uniquely allows web applications to utilize otherwise idle computing power in user devices, improving speed & usability, while reducing the cost of providing them, since the amount of requests to the cloud is reduced. All in all, XIOS/3 is the technology to leverage existing web frameworks and refine open source by making it faster, better and cheaper to build applications in an era where everything is transitioning to the cloud and companies are striving for decentralization to the edge.

Seoul, South Korea

Developer of an innovative software designed to focus on internet infrastructure. The company's innovative software, STON Edge Server is an off-the-shelf software platform for mission critical online services, enabling users to get not only fast speed but also delivery standards and domain-specific features for each and every online service.

Istanbul, Istanbul, Turkey

Backend as a service platform

France

Apps Velocity is a global platform development tool : backend, web-services to web/mobile native apps for iOS/Android/Windows Phone for multi-screens devices.Apps Velocity is a cutting-edge platform that reduces the time and cost of development enterprise business processes, products, services and apps.It is a unique solution that empowers developers, organizations, web agencies, the ability to create and deploy backend, web-services, native iOS, native Android, native windows phone without platform dependance-lock.Apps Velocity is a 3 tool in one : mobile backend-as-a-service (MBaaS) + Infrastructure-as-a-service (IaaS) + Cross-Platform-Tool (CPT) .Apps Velocity is :NON-PROPRIETARY: Select the features you want and get native, fully-customizable client and server-side codeAVAILABLE INSTANTLY: Web-based designer, with native apps compiled in the cloud and ready to submit to app storesModern Platform ArchitectureUnlike other existing mobile platform solutions, Apps Velocity is based on

Sydney, New South Wales, Australia

Developer of a cloud-based enterprise software designed to run software applications on the mainframe without requiring them to be permanently installed on the mainframe. The company's cloud-based enterprise software is integrated with a mobile application which navigate users around the mainframe with a user friendly Windows style GUI and allows businesses to develop, install and deploy mainframe applications quickly, at minimal cost and with minimal risk, enabling next generation of IT professionals to run software application on the mainframe.

Germany

From Zero to Production with Spring Boot and AWS

Kyiv, Ukraine

Sunflower communications offers IT infrastructure such as SaaS, application service provider, internal telephony, CRM, and cloud solutions.

St. Louis, Missouri, United States

Provider of a reactive microservices platform intended to help developers to focus on their product by transparently providing API management, routing, service discovery and predictive load balancing. The company's platform combines the functionality of an API Gateway and a Service Mesh, with a reactive network protocol, to create a unified microservices ecosystem, enabling developers to to quickly and easily create real-time web, mobile and IoT experiences and lower engineering costs.