Stoke Space
Hiring
What they do:
Seamless mobility to, through, and from space. It starts with 100%…
Quick facts:
HQ: Seattle, WA, United States
Top Deep Tech Startups in Seattle
This list has 25 startups and was last updated on Oct 15, 2026. 6 of them are hiring right now. Largest teams: Stoke Space, Helion Energy, and Inspectify. Latest round: LevelTen Energy raised $2M (Oct 8, 2026).
25 startups
What they do:
Building the world's first fusion power plant
Quick facts:
HQ: Seattle, WA, United States
Inspectify
Hiring
What they do:
Home Inspections, Simplified
Quick facts:
HQ: Seattle, WA, United States
Mason
Hiring
What they do:
Mason is the fastest way to take smart devices from idea to end user
Quick facts:
HQ: Seattle, WA, United States
What they do:
Green Canopy NODE builds sustainable homes fast.
Quick facts:
HQ: Seattle, WA, United States
What they do:
Investment management platform for real estate
Quick facts:
HQ: Seattle, WA, United States
Starcloud
Hiring
What they do:
Data centers in space
Quick facts:
HQ: Seattle, WA, United States
What they do:
Discovering drugs that target the DNA regulome
Quick facts:
HQ: Seattle, WA, United States
What they do:
Code-first scrapers and RPAs — built and maintained by AI
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HQ: Seattle, WA, United States
What they do:
Rebellyous Foods is a food manufacturing technology and production…
Quick facts:
HQ: Seattle, WA, United States
What they do:
We make beautiful connected light switches that allow you to control…
Quick facts:
HQ: Seattle, WA, United States
Silurian
Hiring
What they do:
Foundation models to simulate Earth, starting with weather.
Quick facts:
HQ: Seattle, WA, United States
Terrakotta
Hiring
What they do:
AI platform for phone-first sellers
Quick facts:
HQ: Seattle, WA, United States
What they do:
We design and manufacture energy efficient LED lighting fixtures for…
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HQ: Seattle, WA, United States
What they do:
Building persistent, high-performance infrastructure in the sky
Quick facts:
HQ: Seattle, WA, United States
What they do:
Aggregating Spot Freight Opportunities for Carriers
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HQ: Seattle, WA, United States
What they do:
A Roomba for weeds on a farm.
Quick facts:
HQ: Seattle, WA, United States
What they do:
Building the first sensor enabled marketplace for repeat purchases
Quick facts:
HQ: Seattle, WA, United States
What they do:
24/7 emergency maintenance department for property managers and…
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HQ: Seattle, WA, United States
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HQ: Seattle, WA, United States
Funding:
$2.38M · Equity · May 2026
Quick facts:
HQ: Seattle, WA, United States
Funding:
$2M · Equity · Oct 2026
Shift Labs
Acquired
What they do:
Makers of simple, affordable medical devices. Our award-winning…
Quick facts:
HQ: Seattle, WA, United States
Valor Water Analytics
Acquired
What they do:
Valor Water Analytics delivers a SaaS platform to utilities to detect…
Quick facts:
HQ: Seattle, WA, United States
The Buttermilk Company
Shut down
What they do:
Instant, fresh ethnic food that actually taste homemade. We're…
Quick facts:
HQ: Seattle, WA, United States
Kyten Technologies
Shut down
What they do:
Custom Aerospace-Grade Battery Packs
Quick facts:
HQ: Seattle, WA, United States
Questions and answers
How many startups are on this list?
There are 25 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
6 of them are hiring right now, including Stoke Space, Inspectify, and Mason.
Which of them have the largest teams?
By team size: Stoke Space (305 employees), Helion Energy (150 employees), and Inspectify (75 employees).
Which of them raised money recently?
Latest rounds: LevelTen Energy — $2M Equity (Oct 2026) and Teichos Energy — $2.38M Equity (May 2026).