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Series B Companies in California

Explore 891 series b startups based in California, United States. Access verified founder contact information and fundraising data.

Total Companies
891
Total Funding
$1.7B
Avg Funding
$68.4M
Industries
16

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Recently Funded Companies

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$6.0M
raised

SideChef is an online platform that provides step-by-step recipes for new and amateur cooks.

Mar 2023
Series B

Founder Contacts

41,000+ verified contacts

Electric Vehicle
$32.0M
raised

Ionblox has developed high energy density lithium ion batteries for ground and aerial electric vehicles.

Feb 2023
Series B

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$10.0M
raised

Numerai transforms and regularizes financial data into machine learning problems for global network of data scientists.

Feb 2023
Series B

Founder Contacts

41,000+ verified contacts

Developer Platform
$24.0M
raised

Memfault is an IoT reliability platform giving developers a more scalable & sustainable process to transform the way they build & operate.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

$13.0M
raised

OroCommerce is the company behind OroCRM, OroCommerce and the OroPlatform.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Cloud Security
$22.0M
raised

The connected safety platform for hospitals and health systems

Jan 2026
Series B

Founder Contacts

41,000+ verified contacts

Biotechnology
$107.0M
raised

EpiBiologics develops antibody-based targeted therapies against membrane and extracellular proteins.

Jan 2026
Series B

Founder Contacts

41,000+ verified contacts

Digital Entertainment
$100.0M
raised

Second Dinner Studios is an independent game development studio focused on creating entertaining and engaging video games.

Jan 2024
Series B

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$80.0M
raised

Apella Technology is an AI startup that brings modern engineering to improve surgery.

Jan 2026
Series B

Founder Contacts

41,000+ verified contacts

Property Management
$21.5M
raised

Doorstead is a property management and tenant placement company that uses data-driven technology to optimize rental income.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Advanced Materials
$100.0M
raised

Cambium specializes in advanced materials for defense and aerospace, focusing on AI-driven designs and agile manufacturing practices.

Jan 2026
Series B

Founder Contacts

41,000+ verified contacts

Biotechnology

Revagenix is a biopharmaceutical company discovering and developing therapies to address medical needs.

Jan 2024
Series B

Founder Contacts

41,000+ verified contacts

$25.0M
raised

Immune-Onc Therapeutics is a newly established biopharmaceutical company that develops therapeutic antibodies for cancer treatment.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

Biotechnology
$37.0M
raised

Ophirex is developing affordable, accessible, oral treatments to snakebite.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

$78.0M
raised

Perceive Biotherapeutics is a biotechnology company pioneering novel technologies and therapeutics in ophthalmology.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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Agentic AI
$35.0M
raised

Lindy is an iMessage-native AI assistant that gives you 2+ hours back every day by handling your inbox, meetings, and calendar proactively.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$100.0M
raised

Metagenomi uses metagenomics and machine learning to discover novel genome editing systems for therapeutics development.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

Consumer Electronics
$18.8M
raised

Building the next wave of touch-sensing, force-sensing & haptics technologies to revolutionize how we interact with the digital world.

Jan 2022
Series B

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$14.0M
raised

AI-Driven Sales Forecasting and Pipeline Management

Jan 2022
Series B

Founder Contacts

41,000+ verified contacts

Biotechnology
$95.0M
raised

Human Immunology Biosciences is a biotechnology company that focuses on developing therapies for immune-mediated diseases.

Jan 2024
Series B

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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Automotive
$17.0M
raised

Spartan Software is about seeing more by removing unneeded artifacts from a sensor scan while extracting the most important data

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

Apps
$15.3M
raised

Aluna provides an at-home spirometer to maintain healthy lung function.

Jan 2023
Series B

Founder Contacts

41,000+ verified contacts

Building Material
$18.3M
raised

Snap-together metal framing for towers, enabling 5X faster builds.

Jan 2026
Series B

Founder Contacts

41,000+ verified contacts

Artificial Intelligence (AI)
$700.0M
raised

Saviynt offers an AI-based identity security platform that secures and governs all types of identities across digital ecosystems.

Dec 2025
Series B

Founder Contacts

41,000+ verified contacts

Renewable Energy
$40.0M
raised

Haven Energy a climate technology firm that is hastening the adoption of home battery systems

Dec 2025
Series B

Founder Contacts

41,000+ verified contacts

Showing 701 to 725 of 891 companies

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