Top 337 SaaS Companies in Seattle, United States, May 2026

Seattle, Washington, United States

Seattle, Washington, United States

Developer of an enterprise integration platform intended to provide instant and automatic integration between all business applications, databases, directories and devices. The company's cloud-based service provides real-time integration between application platforms and IT infrastructure to achieve accelerated and de-risked financial returns from faster and more complete application platform roll-outs.

Seattle, Washington, United States

Lighter Capital is a lender that provides revenue-based financing to software, technology and knowledge-based companies. The firm helps early-stage companies that are generating sales, but need additional capital for their growth and development. It was established in 2010 and is headquartered in Seattle, Washington.

Seattle, Washington, United States

Home Inspections, Simplified

Seattle, Washington, United States

Software developer empowering businesses with innovative digital solutions and harnessing the power of AI and software technologies to drive growth

Seattle, Washington, United States

Uplevel provides a system of decision that engineering leaders need to make the right decisions. Interpreting and correlating data from work management, code, CI/CD, calendar, chat, and incidence response tools, Uplevel helps you align investments to outcomes so you can deliver the right things in the right ways.

Seattle, Washington, United States

WellSaid is the leading AI text-to-speech technology company and first synthetic media service to achieve human-parity in voice. Creators, product developers, and brands alike power up their stories and digital experiences with a wide variety of voice styles, accents and languages — at the volume companies need.

Seattle, Washington, United States

Balena is a complete set of tools for building, deploying, and managing fleets of connected Linux devices. We provide infrastructure and tools for fleet owners so they can focus on developing their applications and growing their fleets with as little friction as possible. Our tools are designed to work well together as a platform, but you can also pick and choose the components you need for your project, and adapt them to your particular use case. We know that no two IoT projects are the same and there is no one-size-fits-all solution. All your devices and their running services can be managed, monitored, and updated through the web dashboard, or through our API via the CLI and SDK. We’ve solved the hard problems so you as the fleet owner can focus on your application, not your infrastructure.

Seattle, Washington, United States

Edge Delta's intelligent Telemetry Pipelines are designed to manage exponential volumes of Observability and Security data — at the edge or in the cloud. It's control for the knowns you understand, AI and automation for the unknowns you can’t.

Seattle, Washington, United States

BrainChild Bio is a kids-first, clinical-stage biotechnology company focusing on harnessing CAR T-cell technology for tumors in the central nervous system, particularly pediatric brain tumors.