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Series B Open Source Companies

Explore 24 open source startups that raised series b funding. Access verified founder contact information and fundraising data.

Total Companies
24
Total Funding
$1.3B
Avg Funding
$54.0M
Cities
17

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Miami, United States
$11.0M
raised

Entando is an open-source vendor providing an Application Composition Platform for building Composable and Cloud-Native Apps

Aug 2021
Series B

Founder Contacts

30,000+ verified contacts

Redwood City, United States
$60.0M
raised

The company behind the Milvus open-source vector database

Aug 2022
Series B

Founder Contacts

30,000+ verified contacts

Paris, France
$31.0M
raised

Strapi is an open-source software platform that helps developers to easily build, deploy, and manage APIs.

Jun 2022
Series B

Founder Contacts

30,000+ verified contacts

New York, United States
$16.5M
raised

Code Ocean is a computational research platform that aims to help researchers replicate data-heavy science.

May 2022
Series B

Founder Contacts

30,000+ verified contacts

Cupertino, United States
$60.0M
raised

Orkes offers a platform for modern workflow orchestration, allowing businesses to build and scale complex software applications.

Apr 2026
Series B

Founder Contacts

30,000+ verified contacts

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Berlin, Germany
$50.0M
raised

Qdrant is an open-source vector search engine and database for next-generation AI applications.

Mar 2026
Series B

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$305.0M
raised

Together AI is a cloud-based platform designed for constructing open-source generative AI and infrastructure for developing AI models.

Feb 2025
Series B

Founder Contacts

30,000+ verified contacts

Santa Monica, United States
$20.0M
raised

LakeFS is a developer of a scalable data version control system

Jul 2025
Series B

Founder Contacts

30,000+ verified contacts

New York, United States
$35.0M
raised

NetBox Labs develops services for the open-source NetBox IP address management and data center infrastructure management platform.

Jul 2025
Series B

Founder Contacts

30,000+ verified contacts

Palo Alto, United States
$93.0M
raised

Endor Labs secures software supply chains with advanced tools for open-source risk, compliance, and developer productivity.

Apr 2025
Series B

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Tel Aviv, Israel
$50.0M
raised

Oligo Security specializes in application detection and response, focusing on protecting software during the development lifecycle.

Jan 2025
Series B

Founder Contacts

30,000+ verified contacts

Rocklin, United States
$40.0M
raised

Unstructured is an enterprise ETL tool that automatically transforms complex, unstructured data into clean, structured data for GenAI.

Mar 2024
Series B

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$40.0M
raised

Replicate provides a platform for open source machine learning models that enables users to run and refine open-source models with an API.

Dec 2023
Series B

Founder Contacts

30,000+ verified contacts

Berlin, Germany
$29.6M
raised

deepset offers an open-source LLM framework and a cloud platform for enterprise AI teams.

Aug 2023
Series B

Founder Contacts

30,000+ verified contacts

Seocho, South Korea
$6.3M
raised

Common Computer is building a global backend infrastructure that transforms millions of open-source projects into live services.

Jul 2023
Series B

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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Stockholm, Sweden
$6.5M
raised

Hopsworks specializes in tensorFlow, flink, MySQL, hdfs, machine learning, deep learning, and artificial intelligence.

Jun 2023
Series B

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands
$50.0M
raised

Weaviate develops a hybrid SaaS platform to build search and recommendation systems.

Apr 2023
Series B

Founder Contacts

30,000+ verified contacts

London, United Kingdom
$20.0M
raised

Seldon is a machine learning deployment platform.

Mar 2023
Series B

Founder Contacts

30,000+ verified contacts

Los Angeles, United States
$13.0M
raised

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

Jan 2023
Series B

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$120.0M
raised

Panther is a modern SIEM platform that solves the challenges of security operations at scale

Dec 2021
Series B

Founder Contacts

30,000+ verified contacts

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30,000+ verified emails
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San Francisco, United States

Airbyte is an open-source data integration engine that helps to sync data from applications to warehouses.

Dec 2021
Series B

Founder Contacts

30,000+ verified contacts

Old Road Town, Saint Kitts and Nevis
$175.0M
raised

1inch is a suite of decentralized trading and routing products for different type of users across multiple chains.

Dec 2021
Series B

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$35.6M
raised

The collaborative data canvas

Jan 2022
Series B

Founder Contacts

30,000+ verified contacts

San Francisco, United States
$27.8M
raised

ArangoDB is an open-source database that offers a flexible data model for documents, graphs, and key values.

Oct 2021
Series B

Founder Contacts

30,000+ verified contacts

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