All Rankings

Top 100 Seattle Startups 2026

The most-funded startups headquartered in Seattle, ranked by total capital raised.

Known total funding for 100 of 100 ranked companies: $13.1B.

Showing top 100 matching companies · Ranked by total funding raised

Use company data through the API.
Example request
curl "https://indexed.vc/api/v1/companies?countries=United+States&cities=Seattle&operatingStatus=active&sort=total_funding_raised&order=desc&limit=100" -H "X-API-Key: YOUR_API_KEY"

The API has no company type filter, so public companies can appear; this list counts private companies only.

The API cannot leave out companies whose latest round is a grant, private equity or debt financing; this list does.

Data from Indexed.vcUpdated

Methodology: up to 100 active companies matching this list's filters are ordered by disclosed total funding in USD. Companies whose latest round is one of: Grant, Private Equity, Debt Financing are excluded. Totals include recorded grants and other qualifying funding, not just equity. Open a company profile for its funding summary and available detail. How this data is built.

51
Bulletproof

Bulletproof sells coffee enhanced with lion’s mane, ashwagandha and reishi, marketed to people se...

Seattle, United StatesCybersecurity, Food & Beverage
Venture RoundTotal funding$72.0MJul 2018
52
TWINSTRAND BIOSCIENCES INC

R&D company with 7 SBIR/STTR awards from Department of Health and Human Services.

Seattle, United States11–50Biotech, Healthcare
Series BTotal funding$71.5MMay 2021
53
Vilya

Vilya designs novel macrocycle therapeutics using AI-driven computation, combining the targeting ...

Seattle, United States11–50Artificial Intelligence, Biotech
Series ATotal funding$71.0MJun 2024
54
Avalanche Energy

Developer of compact, mobile fusion reactors providing neutron sources and distributed power for ...

Seattle, United States51–200Clean Energy, Defense Tech
Venture RoundTotal funding$69.0MFeb 2026
55
DroneSeed

Replanting forests safer and 10X cheaper.

Seattle, United States11–50Climate Tech
Series BTotal funding$66.8MFeb 2025
56
Defined.ai

Defined.ai is a global marketplace for ethical AI training data, enabling enterprises to build re...

Seattle, United StatesArtificial Intelligence
Extension RoundTotal funding$66.6MJan 2022
57
Proprio

AI-powered surgical intelligence platform combining physician expertise with immersive technology...

Seattle, United States51–200Artificial Intelligence, Healthcare
Series BTotal funding$66.0MJul 2023
58
iUNU

Agricultural technology platform delivering plant-level greenhouse insights that help growers imp...

Seattle, United States51–200Artificial Intelligence, Climate Tech
Growth EquityTotal funding$64.5MApr 2025
59
Boundless

Provides immigration software and licensed legal services for individuals, families, and employer...

Seattle, United States201–500HR Tech, Legal Tech
Series BTotal funding$64.3MApr 2021
60
Augmodo

Augmodo provides Spatial AI that tracks every product in every store in real time, with a real-ti...

Seattle, United States11–50Artificial Intelligence
Series ATotal funding$63.8MJul 2025
61
Lithos

Carbon capture company transforming farmland into carbon sequestration centers using enhanced roc...

Seattle, United States11–50Agtech, Carbon Capture
Series ATotal funding$63.4MDec 2023
62
Arrived

Arrived is a platform for investing in equity shares of rental homes, starting from $100.

Seattle, United States51–200Fintech, PropTech
Series BTotal funding$62.0MMar 2025
63
Yoodli

Enterprise AI roleplay platform for communication coaching, sales enablement, and L&D training. T...

Seattle, United States11–50Artificial Intelligence, SaaS
Series BTotal funding$60.4MDec 2025
64
Nuance Labs

Builds real-time, multimodal foundation models that understand and express human emotion across s...

Seattle, United States1–10Artificial Intelligence, Computer Vision
Series ATotal funding$60.0MSep 2026
65
Oleria

Oleria is an AI-native identity security and governance platform that discovers and secures human...

Seattle, United States51–200Cybersecurity
Series BTotal funding$60.0MNov 2025
66
Dropzone AI

Dropzone AI builds AI agents that investigate alerts, hunt threats, and respond to attacks alongs...

Seattle, United States11–50Artificial Intelligence, Cybersecurity
Series BTotal funding$57.3MJul 2025
67
Atomo Coffee

Atomo Coffee is a Seattle food-tech startup that produces sustainable, beanless molecular coffee ...

Seattle, United States11–50Climate Tech
Series BTotal funding$56.8MJan 2025
68
QA Wolf

End-to-end automated QA and test maintenance for engineering teams, delivering high test coverage...

Seattle, United States51–200Artificial Intelligence, Developer Tools
Series BTotal funding$56.0MJul 2024
69
RiscZero

Zero-knowledge proof infrastructure company building high-performance ZK systems and a general-pu...

Seattle, United States51–200Crypto & Web3, Developer Tools
Series ATotal funding$54.0MJul 2023
70
Glowforge

Makes desktop laser cutters and engravers for consumers, educators, and small businesses, enablin...

Seattle, United States51–200Education, Hardware
Series ETotal funding$51.0MMay 2023
71
Logixboard

Logixboard builds a white-labeled customer portal that gives freight forwarders' customers self-s...

Seattle, United States51–200SaaS
Series BTotal funding$49.2MJan 2022
72
Union.ai

Union AI provides a unified orchestration platform for Machine Learning workflows, data pipelines...

Seattle, United States11–50Artificial Intelligence, Developer Tools
Extension RoundTotal funding$48.1MFeb 2026
73
A-Alpha Bio

A-Alpha Bio harnesses synthetic biology and machine learning to measure, predict, and engineer pr...

Seattle, United States11–50Artificial Intelligence, Biotech
Series ATotal funding$46.9MJul 2023
74
Zuper

Zuper provides an AI-native operating system that helps service businesses run operations from th...

Seattle, United States51–200SaaS
Series BTotal funding$46.1MDec 2023
75
WhitePages

Largest US online people search directory providing phone numbers, addresses, and background info...

Seattle, United States201–500Data & Analytics
Series ATotal funding$45.0MJan 2005