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Series A Companies in Seattle

Explore 74 series a startups based in Seattle, United States. Access verified founder contact information and fundraising data.

Total Companies
74
Total Funding
$513.4M
Avg Funding
$20.5M
Industries
16

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Artificial Intelligence (AI)
$16.0M
raised

Falkon AI is an intelligence platform for marketing, sales, and account management teams.

Sep 2022
Series A

Founder Contacts

30,000+ verified contacts

Business Intelligence
$17.2M
raised

NavigatorCRE a patented business intelligence platform that helps commercial real estate customers integrate and visualize all types of data

Aug 2021
Series A

Founder Contacts

30,000+ verified contacts

ecommerce, streamlined checkout experience that requires 0 changes for the Merchant site

Aug 2025
Series A

Founder Contacts

30,000+ verified contacts

Digital Media
$6.3M
raised

Data Skrive is a SaaS that creates automated content for Sportsbooks and sports media companies

Aug 2021
Series A

Founder Contacts

30,000+ verified contacts

$10.0M
raised

Oisin Biotechnologies is a drug development company focused on mitigating the senolytic technology to combat age-related diseases.

Aug 2025
Series A

Founder Contacts

30,000+ verified contacts

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Accounting
$2.5M
raised

Lockstep connects accounting teams to help them work better together.

Aug 2021
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$157.0M
raised

GentiBio is a biotherapeutics company developing engineered regulatory T cells programmed to treat autoimmune allergic diseases.

Aug 2021
Series A

Founder Contacts

30,000+ verified contacts

$10.0M
raised

SEngine Precision Medicine uses algorithms and 3D organoid technology to develop drugs with more efficacy.

Jul 2022
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$26.0M
raised

Ozette Technologies is a life science data company that accelerates the development of therapies and diagnostics by digitizing immune data.

Jul 2022
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)

Treble.ai is a software company that links businesses with mobile-first users worldwide.

Jul 2022
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Analytics
$18.0M
raised

Osmos is an AI‑powered data platform that automates data ingestion, cleanup, and transformation to make raw data analytics‑ready.

Jul 2021
Series A

Founder Contacts

30,000+ verified contacts

Analytics
$20.0M
raised

Engineering intelligence platform, software development analytics, digital transformation consulting

Jul 2022
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$25.0M
raised

Mozart is a biotech startup focusing on the development of disease-modifying therapies for autoimmune and inflammatory diseases.

Jun 2023
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$15.0M
raised

Clarify is an AI-powered writing tool that accelerates the academic writing process.

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$46.0M
raised

Vedana Therapeutics is a Seattle biotechnology company developing next-generation antibody therapies for migraine prevention.

Jun 2026
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Protego Trust Bank is a financial service company that offers regulated crypto services to institutional investors.

Jun 2022
Series A

Founder Contacts

30,000+ verified contacts

B2B
$20.0M
raised

Wholesale medical supply platform

Jun 2022
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$15.0M
raised

Clarify offers a CRM that assists in managing sales processes.

Jun 2025
Series A

Founder Contacts

30,000+ verified contacts

Developer Platform
$20.5M
raised

CopilotKit is the full-stack framework for building user interactive agents and copilots. The company behind the AG-UI Protocol.

May 2026
Series A

Founder Contacts

30,000+ verified contacts

Agentic AI
$30.0M
raised

Nectar Social is an AI-powered platform combining community management, social listening, influencer tracking, and performance analytics.

May 2026
Series A

Founder Contacts

30,000+ verified contacts

Ready to Reach These Founders?

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30,000+ verified emails
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Casual Games
$5.0M
raised

Shadow War is a developer of next-generation hybrid action games for both competitive and casual players.

May 2024
Series A

Founder Contacts

30,000+ verified contacts

Information Services
$7.2M
raised

Tignis combines physics and AI for semiconductor process control and automation.

May 2022
Series A

Founder Contacts

30,000+ verified contacts

$9.7M
raised

Receptor Life Sciences is a biotechnology company

Apr 2022
Series A

Founder Contacts

30,000+ verified contacts

Health Care
$15.0M
raised

Zócalo Health specializes in culturally-sensitive primary care and care management for the Latino community.

Apr 2026
Series A

Founder Contacts

30,000+ verified contacts

$22.0M
raised

One More Game is an online game company.

Apr 2022
Series A

Founder Contacts

30,000+ verified contacts

Showing 1 to 25 of 74 companies

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