Top 24 Application Server Software SaaS Companies in May 2026

San Francisco, California, United States

Cloud-native API Gateway and API Middleware

San Francisco, California, United States

Render is a unified cloud to build and run all your apps and websites with free TLS certificates, global CDN, private networks and auto deploys from Git.

San Francisco, California, United States

Lightbend is a developer of an application development platform to build software applications. The company provides software development tools for programming languages. It also provides software platform for hardware and cloud computing workloads. It was founded in 2011 and is headquartered in San Francisco, California. The company seeks to acquire businesses through mergers, acquisitions and investments which would help the firm to expand and consolidate its presence in the industry.

Cambridge, Massachusetts, United States

Provider of open source interface projects intended to bring innovative cloud technologies to the enterprises. The company provides all the tools needed to glue together traditional and cloud-native apps, from monoliths to microservices and Serverless, enabling enterprise to migrate and gradually transform legacy applications to new architectures.

Tel-Aviv, Israel

Driven by the understanding that much of the cloud's complexity is rooted in current programming paradigms, Wing Cloud is an abstraction layer which spans cloud providers and services, and unifies infrastructure and application code into a single programming and operational model. Wing Cloud enables teams to deliver cloud software faster and more securely, and increase independence and autonomy of both developers and platform teams. Our solutions include the open-source programming language Winglang, as well as tools and services to allow teams to build, run, debug, and test complete cloud applications on cloud providers and a local simulation.

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.