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Open Source Startups

Updated August 2026

Companies in the open source sector developing innovative solutions and technologies.

Explore 270 recently funded open source companies with verified founder contact information and fundraising data.

Total Companies
270
Total Funding
$213.3M
Avg Funding
$8.5M
Global Reach
6
countries

Top Cities for Open Source

Portland
San Francisco
London
Paris
Los Angeles
Boulder

Recently Funded Companies

Export
Portland, United States

moonrepo is an open-source build tool for monorepos and large codebases.

$500K raised
Apr 2023

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Helicone is an open-source observability platform for generative AI.

$1.5M raised
Apr 2023

Founder Contacts

41,000+ verified contacts

San Francisco, United States

AI Document Processing

$500K raised
Apr 2023

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Trigger.dev is a coding tool for automating complex workflows.

$500K raised
Apr 2023

Founder Contacts

41,000+ verified contacts

San Francisco, United States

UpTrain develops an open-source toolkit to observe and refine AI applications.

$2.2M raised
Apr 2023

Founder Contacts

41,000+ verified contacts

San Francisco, United States

DAGWorks develops an open-core platform for data science teams to develop, produce, and maintain machine learning.

$500K raised
Apr 2023

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Seldon is a machine learning deployment platform.

$20.0M raised
Mar 2023

Founder Contacts

41,000+ verified contacts

Paris, France

Mindee offers a tailor-made artificial intelligence solution that transforms documents into usable data.

$7.0M raised
Mar 2023

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Calimero Network is a blockchain infrastructure that helps clients in controlling data.

$8.5M raised
Jan 2023

Founder Contacts

41,000+ verified contacts

Los Angeles, United States

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

$13.0M raised
Jan 2023

Founder Contacts

41,000+ verified contacts

Boulder, United States

RadiaSoft is a R&D company that provides software development, COMSOL, science consulting and machine learning services.

$206K raised
Jan 2024

Founder Contacts

41,000+ verified contacts

Los Gatos, United States

Rapid Silicon is a provider of domain-specific field-programmable gate array for applications.

$15.0M raised
Jan 2023

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Ockam builds trust between applications and data everywhere.

$12.5M raised
Jan 2022

Founder Contacts

41,000+ verified contacts

Dublin, Ireland

Contember is a software company that specializes in AI and typescript for data fetching instantly.

Jan 2024

Founder Contacts

41,000+ verified contacts

Antwerp, Belgium

The world's first Logistics Enablement platform empowering freight forwarding teams.

$1.2M raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Lenexa, United States

OpenRelay is a distributed relayer of fine order book infrastructures.

$1.5M raised
Dec 2021

Founder Contacts

41,000+ verified contacts

Altamonte Springs, United States

Konnected makes alarm systems smart by connecting them to modern smart home automation platforms.

$1.0M raised
Jan 2022

Founder Contacts

41,000+ verified contacts

San Francisco, United States

PearAI is an open-source, AI-powered code editor that integrates AI tools to streamline development.

$500K raised
Dec 2024

Founder Contacts

41,000+ verified contacts

San Francisco, United States

OpenBuilder is the vibe coding platform that helps non-technical builders take their ideas to production.

$500K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Velum Labs provides a firewall that redacts sensitive information in data and documents.

$500K raised
Dec 2025

Founder Contacts

41,000+ verified contacts

Tallinn, Estonia

Decentralized Prime Brokerage that connects lenders, traders and market makers.

$5.7M raised
Dec 2021

Founder Contacts

41,000+ verified contacts

San Francisco, United States

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

$120.0M raised
Dec 2021

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Metriport is an open-source platform that makes it easy for healthcare organizations to access and exchange medical data for their patients.

Dec 2022

Founder Contacts

41,000+ verified contacts

Amesbury, United States

Curious Learning is a non-profit firm that focuses on using technology and analytics to enable the unpriviliged kids to read.

$420K raised
Dec 2023

Founder Contacts

41,000+ verified contacts

San Francisco, United States

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

Dec 2021

Founder Contacts

41,000+ verified contacts

Showing 201 to 225 of 270 companies

About the Open Source Startup Ecosystem

The open source sector is an active area of startup innovation and venture capital investment. Companies in this space are developing new technologies, platforms, and services that address evolving market needs and create new business opportunities.

Funding Trends in Open Source

Open Source companies raise capital across various funding stages, from early seed rounds to late-stage growth financing. Investor interest in this sector is driven by the size of the addressable market, the pace of technology adoption, and the potential for scalable business models.

Growth Outlook

The open source sector is expected to continue evolving as technology advances, market dynamics shift, and new opportunities emerge. Companies that demonstrate strong product-market fit, efficient growth, and clear competitive advantages are well-positioned to attract continued investment.

Open Source Funding Breakdown

Here is how funding is distributed among the 270 open source companies tracked in the VCBacked database.

Average Funding
$8.5M
Total Funding Tracked
$213.3M
Countries Represented
6

Distribution by Funding Stage

Other25 companies

Top Cities for Open Source

1.San Francisco
11 companies$138.7M
2.London
3 companies$29.0M
3.Portland
1 companies$500K
4.Paris
1 companies$7.0M
5.Los Angeles
1 companies$13.0M

Related Industries

Companies in the open source sector often overlap with or complement businesses in adjacent industries. Exploring related verticals can help you discover additional companies, identify partnership opportunities, and understand the broader competitive landscape.

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270 Open Source Startups (2026) — Recently Funded — Page 9 | VCBacked