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Series A Companies in California

Explore 1,967 series a startups based in California, United States. Access verified founder contact information and fundraising data.

Total Companies
1,967
Total Funding
$1.4B
Avg Funding
$57.1M
Industries
14

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Recently Funded Companies

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$4.4M
raised

LumiCup manufactures cups and other recyclable items from alumminium.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

Analytics
$10.0M
raised

OpenObserve provides an open-source observability platform for monitoring logs, metrics, and traces in a unified system.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

$35.0M
raised

Aureka Biotechnologies is a pioneering biotech firm dedicated to democratizing the pharmaceutical sector in order to conquer sickness.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

Electronic Design Automation (EDA)
$50.0M
raised

OpenLight is a manufacturing company that specializes in custom photonic application and circuit chip design.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Command AI is a firm that offers simple, AI-powered user assistance to make applications easier to use.

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Secondhand Goods
$10.0M
raised

AI That Turns Used Goods Into Cash

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

Identity Management
$19.0M
raised

Smallstep is an open-source toolkit to automate certificate administration and secure infrastructures.

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Industrial Next develops the fundamental technologies for flexible and intelligent production automation.

Apr 2025
Series A

Founder Contacts

41,000+ verified contacts

Analytics
$15.0M
raised

Mozart Data provides an out-of-the-box modern data stack. Easily consolidate and prepare data for analysis without any engineering.

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

Biotechnology
$76.0M
raised

Pheast Therapeutics develops checkpoint therapies to harness the innate immune system.

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Artificial Intelligence (AI)
$15.0M
raised

Seaplane IO provides a edge computing platform for deploying and scaling containerized applications across global cloud infrastructure.

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$24.0M
raised

Theator is a surgical intelligence platform that combines artificial intelligence and computer vision to improve surgeon performance.

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

Apparel
$8.0M
raised

Saysh is a performance footwear brand for and by women, founded by Allyson Felix, the most decorated track and field athlete of all time.

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

$17.0M
raised

Bobsled is the fastest way to share data to any cloud or platform.

Apr 2023
Series A

Founder Contacts

41,000+ verified contacts

Cyber Security
$23.0M
raised

Identity and Access Management from Passwordless through Continuous Adaptive Trust leveraging behavioral and biometric signatures

Apr 2022
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
No credit card required
$3.2M
raised

An AI-native software platform for protein R&D teams, helping scientists generate, optimize, and advance stronger protein candidates faster.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$8.0M
raised

LighthouseAI provides software solutions to pharmaceutical manufacturers.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

Software
$124K
raised

...

Apr 2025
Series A

Founder Contacts

41,000+ verified contacts

$15.2M
raised

Lighthouse Pharma's strategy combines translational insights with considerable clinical experience to understand and treat dementia.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$1.0B
raised

Xaira Therapeutics is an integrated biotechnology company driving advances in artificial intelligence.

Apr 2024
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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Artificial Intelligence (AI)
$51.3M
raised

Strala Group is an insurance company that provides an AI-powered outsourced claims processor for Insurance carriers, Captives, and MGAs.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

$15.0M
raised

Daydream Labs develops a SaaS platform that automates programmatic search engine optimization from end to end.

Apr 2026
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$20.0M
raised

Venteur AI is an ICHRA administrator providing affordable health insurance solutions.

Apr 2025
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$7.0M
raised

MediNote AI is an AI-powered clinical documentation platform that transcribes and structures medical notes in real time.

Apr 2025
Series A

Founder Contacts

41,000+ verified contacts

Information Technology
$124K
raised

Smarter Experiments. Faster Discoveries.

Apr 2025
Series A

Founder Contacts

41,000+ verified contacts

Showing 601 to 625 of 1,967 companies

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1,967 Recently Funded Series A Startups in California (October 2026) — Page 25 | VCBacked