Top 24 Application Server Software SaaS Companies in May 2026

San Francisco, California, United States

The missing application development platform for Kubernetes

Ottawa, Ontario, Canada

Developer of subscription-based application software designed to make windows applications migration more efficient than manual methods. The company's application software automatically migrates Windows applications to a newer operating system, to new in-house servers or cloud environments, enabling users to move applications from an old OS to a newer one, and to modernize and move to the cloud efficiently.

San Francisco, California, United States

Traefik Labs helps organizations adopt and scale cloud-native architectures by providing a modern, intuitive, and open platform that reimagines application connectivity and API management, paving the way for seamless operations and enhanced productivity. Traefik’s flagship open source project, Traefik Proxy, is used by the world’s largest enterprises and is one of Docker Hub’s top 10 projects, with over 3 billion downloads. Founded in 2016, Traefik Labs is backed by investors including Balderton Capital, Elaia, 360 Capital Partner, and Kima Ventures.

Edinburgh, Scotland, United Kingdom

Provider of open source software designed to securely migrate, run and evolve applications in the cloud. The company's software offers development, deployment and runtime management of distributed applications, enabling clients to reduce costs, increase uptimes, improve performance and responsiveness and continuously exploit the pace of AWS innovation.

San Francisco, California, United States

Provider of an open source software designed to make cloud-native software faster, scalable, reliable and more secure. The company's software specializes in hosting activities, such as web hosting, streaming services or application hosting, as well as provides application service provisioning, enabling engineers, SREs and DevOps teams to build innovative, reliable and secure software.

Boston, Massachusetts, United States

Provider of application programming interface and service exchange. The company's platform, enables organizations to handle data-intensive and device-centric computing functions at the edge of the network and simplifies integration with virtually any local application or cloud service through RESTful APIs and standard communications protocols.

San Francisco, California, United States

E2B.dev offers a secure, sandboxed cloud environment designed for AI agents and applications, enabling them to execute code safely and efficiently. With its Code Interpreter SDK, developers can integrate code interpreting functionalities into their AI apps, allowing for dynamic code execution and long-running processes. E2B.dev supports multiple programming languages, including Python and JavaScript, and provides robust tools for coding, debugging, and integrating with large language models.

Berlin, Berlin, Germany

Developer of an open source engine designed to develop and test backend applications. The company's platform provides a development environment where codes are live-built, tested and deployed, providing developers with containers and serverless functions to easily develop and deploy distributed systems.

Boston, Massachusetts, United States

Developer of a Cloud-Native Enterprise Platform designed to build, deploy and optimize applications faster. The company's SOAJS Open Source Platform provides an array of turnkey software products designed to significantly increase stability, standardization and return on investment while decreasing valuable time-to-market, enabling companies to develop digital business agility to create new forms of value and thrive during disruption.

Austin, Texas, United States

WebAssembly execution engines, frameworks, and developer toolchain for the cloud