OpenPipe
Acquired
What they do:
Turn expensive prompts into cheap fine-tuned models
Quick facts:
HQ: Seattle, WA, United States
Top B2B Software Startups in Washington State
This list has 82 startups and was last updated on Oct 15, 2026. 11 of them are hiring right now. Biggest hubs: Seattle (61), Bellevue (5), and Issaquah (4). Largest teams: Heap, Mason, and Aurelian. Latest round: Porter Score raised $180K (Oct 14, 2026).
82 startupsPage 3 of 3
Booktrope
Shut down
What they do:
Booktrope provides a software platform that makes it easy for…
Quick facts:
HQ: Seattle, WA, United States
Parade
Shut down
What they do:
Launch your company without hiring a designer
Quick facts:
HQ: Seattle, WA, United States
LunaSec
Shut down
What they do:
An Open Source dependency security tool that is smarter than the rest
Quick facts:
HQ: Seattle, WA, United States
Nimbus
Shut down
What they do:
Nimbus reduces Datadog costs by more than 60% without Manual Effort
Quick facts:
HQ: Seattle, WA, United States
Jamglue
Shut down
What they do:
Jamglue is an online community allowing users to listen or mix music from a library of user-contributed music.
Quick facts:
HQ: Seattle, WA, United States
Uberduck
Shut down
What they do:
Fast, professional content creation with AI audio, image, and video.
Quick facts:
HQ: Seattle, WA, United States
Cakework
Shut down
What they do:
API that adds cloud hosting to any developer platform
Quick facts:
HQ: Seattle, WA, United States
Preloop
Shut down
What they do:
Translate your experimental scripts into production ML services
Quick facts:
HQ: Seattle, WA, United States
Datamode
Shut down
What they do:
Datamode (datamode.com) is a tool for engineers to instantly diagnose…
Quick facts:
HQ: Seattle, WA, United States