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Open Source Startups

Updated July 2026

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

Explore 215 recently funded open source companies with verified founder contact information and fundraising data.

Total Companies
215
Total Funding
$879.5M
Avg Funding
$35.2M
Global Reach
7
countries

Top Cities for Open Source

Seattle
Sandy
San Francisco
Amsterdam
London
Los Angeles

Recently Funded Companies

Export
Seattle, United States

Stacklok creates software supply chain security-focused products and services.

$17.5M raised
May 2023

Founder Contacts

30,000+ verified contacts

Sandy, United States

HeroDevs provides products and solutions for companies with open source libraries that have reached end of life

$8.0M raised
May 2023

Founder Contacts

30,000+ verified contacts

San Francisco, United States

Forecasting & Anomaly Detection Unlock accurate predictions and detect anomalies with Nixtla's industry-leading time series engine.

$4.5M raised
Apr 2023

Founder Contacts

30,000+ verified contacts

Amsterdam, The Netherlands

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

$50.0M raised
Apr 2023

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Cerbos offers an open-source authorization layer for products making user permissions and authorization simple to implement and manage.

$7.5M raised
Apr 2023

Founder Contacts

30,000+ 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

30,000+ verified contacts

London, United Kingdom

Seldon is a machine learning deployment platform.

$20.0M raised
Mar 2023

Founder Contacts

30,000+ verified contacts

London, United Kingdom

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

$8.5M raised
Jan 2023

Founder Contacts

30,000+ verified contacts

Los Angeles, United States

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

$13.0M raised
Jan 2023

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

San Francisco, United States

Ockam builds trust between applications and data everywhere.

$12.5M raised
Jan 2022

Founder Contacts

30,000+ verified contacts

Dublin, Ireland

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

Jan 2024

Founder Contacts

30,000+ verified contacts

Antwerp, Belgium

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

$1.2M raised
Dec 2025

Founder Contacts

30,000+ verified contacts

Lenexa, United States

OpenRelay is a distributed relayer of fine order book infrastructures.

$1.5M raised
Dec 2021

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

Tallinn, Estonia

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

$5.7M raised
Dec 2021

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

San Francisco, United States

Redis provides cloud and on-prem solutions for caching, vector search, and more that seamlessly fit into any tech stack.

$1.2M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

San Francisco, United States

Sysdig is a cyber security company that offers a platform for detecting changes in risk with runtime insights to prevent cloud attacks.

$350.0M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

New York, United States

Carto is a platform that turns spatial data into an efficient delivery route, better behavioral marketing, and strategic store placements.

$61.0M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Union City, United States

Hoppscotch is an open-source API development system that offers to create, test, save, and share API requests services.

$3.0M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Old Road Town, Saint Kitts and Nevis

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

$175.0M raised
Dec 2021

Founder Contacts

30,000+ verified contacts

Showing 151 to 175 of 215 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 215 open source companies tracked in the VCBacked database.

Average Funding
$35.2M
Total Funding Tracked
$879.5M
Countries Represented
7

Distribution by Funding Stage

Other25 companies

Top Cities for Open Source

1.San Francisco
7 companies$490.9M
2.London
3 companies$36.0M
3.Seattle
1 companies$17.5M
4.Sandy
1 companies$8.0M
5.Amsterdam
1 companies$50.0M

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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215 Open Source Startups (2026) — Recently Funded Companies, Investors & Rounds | VCBacked