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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
$405.2M
Avg Funding
$16.9M
Industries
19

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Health Care
$11.6M
raised

Abett helps self-insured employers track and reduce healthcare expenditure.

May 2024
Series A

Founder Contacts

30,000+ verified contacts

Blockchain

Indicio develops decentralized identity software, hosting and networks.

Mar 2024
Series A

Founder Contacts

30,000+ verified contacts

Automotive
$16.0M
raised

The best way to buy and sell used electric vehicles.

Jan 2024
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$5.5M
raised

Healionics has developed a novel vascular graft, based on a platform biomaterial, offering improved vascular access for dialysis patients.

Nov 2023
Series A

Founder Contacts

30,000+ verified contacts

Food and Beverage
$12.0M
raised

Skinny Dipped Almonds is a snack food company that offers chocolate-covered almond treats.

Sep 2023
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Developer Tools
$40.0M
raised

Risc Zero builds scaling solutions using Zero Knowledge Proofs which will make blockchains accessible.

Jul 2023
Series A

Founder Contacts

30,000+ verified contacts

Network Security
$17.5M
raised

Stacklok creates software supply chain security-focused products and services.

May 2023
Series A

Founder Contacts

30,000+ verified contacts

Developer Tools
$20.9M
raised

DevZero makes developers more productive by providing a platform for cloud-based software development environments.

Jan 2023
Series A

Founder Contacts

30,000+ verified contacts

$12.3M
raised

Digital Biotechnologies is a biotechnology company.

Dec 2025
Series A

Founder Contacts

30,000+ verified contacts

Health Care
$8.0M
raised

Redefining ear care and hearing health

Dec 2022
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Infrastructure
$10.0M
raised

StormSensor offers a stormwater management solution that automates workflows for inspections, data monitoring, and reporting.

Dec 2021
Series A

Founder Contacts

30,000+ verified contacts

Advertising
$12.3M
raised

Evocalize provides a collaborative marketing platform that enables partners to execute marketing programs together.

Jan 2022
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$17.0M
raised

Symbl.ai is an early-stage, venture-backed startup that is democratizing access to conversational intelligence for developers.

Nov 2021
Series A

Founder Contacts

30,000+ verified contacts

AI Infrastructure
$10.0M
raised

WhyLabs AI Control Center provides security & observability for AI and GenAI applications

Nov 2021
Series A

Founder Contacts

30,000+ verified contacts

Biotechnology
$96.0M
raised

Cajal Neuroscience is a drug discovery company focused on neurodegenerative disease.

Nov 2022
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Artificial Intelligence (AI)
$5.6M
raised

LeadScorz is a software development company providing cloud services that empower marketers.

Nov 2022
Series A

Founder Contacts

30,000+ verified contacts

E-Commerce
$3.5M
raised

Knack is revolutionizing gift-giving by making it simple and enjoyable to offer unique and meaningful gifts.

Nov 2021
Series A

Founder Contacts

30,000+ verified contacts

Information Services
$20.0M
raised

Aloft is a real estate valuation technology company.

Nov 2021
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)
$15.0M
raised

Xembly is an AI chief of staff, an all-in-one assistant that helps users reach their productivity potential at work

Oct 2022
Series A

Founder Contacts

30,000+ verified contacts

Geothermal Energy
$36.0M
raised

Mazama Energy is a geothermal operator and development firm committed to developing new techniques and technology for removing heat.

Oct 2025
Series A

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
Unlimited exports
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Video Games
$20.0M
raised

Neon Media produces realtime sets for virtual productions.

Oct 2023
Series A

Founder Contacts

30,000+ verified contacts

Building Material
$2.7M
raised

Hest Outdoors delivers high-performance and well-designed products to improve enjoyment and experience outdoors.

Oct 2025
Series A

Founder Contacts

30,000+ verified contacts

Education
$3.3M
raised

NextStep is an information technology company that provides training and job placement for workers via mobile application platform.

Oct 2021
Series A

Founder Contacts

30,000+ verified contacts

Developer APIs
$10.0M
raised

Universal headless checkout with a single API

Oct 2021
Series A

Founder Contacts

30,000+ verified contacts

Showing 51 to 74 of 74 companies

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