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Series A Companies in California

Explore 1,951 series a startups based in California, United States. Access verified founder contact information and fundraising data.

Total Companies
1,951
Total Funding
$502.8M
Avg Funding
$20.1M
Industries
15

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Internet
$125K
raised

AI-Powered Project Execution, Designed for Modern Teams.

Dec 2025
Series A

Founder Contacts

41,000+ verified contacts

Biotechnology
$60.0M
raised

Link Cell Therapies is a biotechnology company that specializes in cancer cell therapy research and development services.

Dec 2025
Series A

Founder Contacts

41,000+ verified contacts

Information Technology
$125K
raised

Learn Smarter. Adapt Faster for a adaptive learning platform focused on transforming how individuals and organizations acquire knowledge.

Dec 2025
Series A

Founder Contacts

41,000+ verified contacts

Architecture
$15.0M
raised

Pirros is a detail management system for architects and engineers.

Dec 2025
Series A

Founder Contacts

41,000+ verified contacts

$15.0M
raised

Blocknative is a provider of real-time blockchain transaction management and monitoring solutions for public blockchain networks.

Dec 2022
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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$10.0M
raised

Lawmatics is a full funnel CRM, client intake and marketing automation software designed for the modern law firm.

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

Analytics
$22.5M
raised

The Python Supercomputing Analytics Platform

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

Blockchain
$10.0M
raised

YO Protocol platform makes it easy to discover, assess, and invest in DeFi yield opportunities.

Dec 2025
Series A

Founder Contacts

41,000+ verified contacts

Biotechnology

Wake Network's mission is to create a world where natural psilocybin therapies are the primary support for mental health and wellness.

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)

Superside is an always-on design company that delivers great design at scale to Enterprise teams.

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Apps
$50.0M
raised

Ngrok is an API-first ingress-as-a-service platform that helps developers build their apps faster and more securely with no code changes.

Dec 2022
Series A

Founder Contacts

41,000+ verified contacts

Biotechnology
$21.0M
raised

Endogena is a biotech company that develops endogenous regenerative medicines to repair and regenerate tissues and organs.

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$82.0M
raised

Mendra uses AI to accelerate clinical development and commercialization of breakthrough medicines for diseases with high unmet need.

Jan 2026
Series A

Founder Contacts

41,000+ verified contacts

Enterprise Software
$3.0M
raised

Good2Go provides secure access and virtual queuing solutions

Dec 2024
Series A

Founder Contacts

41,000+ verified contacts

Health Care

Endiatx is a medical device manufacturing company that specializes in developing a series of pill-sized robots to perform remote diagnoses.

Dec 2024
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Enterprise Software
$23.0M
raised

Fast, predictable permitting for commercial project teams that build at scale.

Dec 2024
Series A

Founder Contacts

41,000+ verified contacts

Infrastructure
$15.0M
raised

bitdrift offers real-time mobile experience insights with its Capture product, focusing on app performance.

Dec 2023
Series A

Founder Contacts

41,000+ verified contacts

Biotechnology
$27.0M
raised

one.bio is an emerging biotechnology spinout from UC Davis that creates ingredients for food and biopharmaceutical applications.

Dec 2024
Series A

Founder Contacts

41,000+ verified contacts

Biotechnology

Harae Dx is a medical diagnostics company.

Dec 2022
Series A

Founder Contacts

41,000+ verified contacts

Internet
$10.0M
raised

Assembly is a no code employee engagement platform that extends from recognition and rewards to productivity and performance management.

Dec 2022
Series A

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Communications Infrastructure
$7.0M
raised

Tigerhall is a change activation platform leveraged by Fortune 500 firms going through major transformation.

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

Information Technology
$10.0M
raised

LeetCode is a social platform for IT interviews.

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

Comprehensive AI test automation for legacy and mainframe development, modernization, and migration.

Dec 2021
Series A

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$52.0M
raised

Medra AI develops an autonomous scientific experimentation platform that combines robotics with artificial intelligence.

Dec 2025
Series A

Founder Contacts

41,000+ verified contacts

Biotechnology
$70.0M
raised

ProLynx is a biotechnology company that develops proprietary drug-delivery technologies to extend the half-life of therapeutic molecules.

Dec 2025
Series A

Founder Contacts

41,000+ verified contacts

Showing 1626 to 1650 of 1,951 companies

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