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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
$572.8M
Avg Funding
$22.9M
Global Reach
6
countries

Top Cities for Open Source

Wilmington
Oslo
Zug
Boston
Stanford
New York

Recently Funded Companies

Export
Wilmington, United States

Networked Artifacts is a technology manufacturing company that offers a portable and playful air quality measuring device.

$750K raised
May 2025

Founder Contacts

41,000+ verified contacts

Oslo, Norway

DLTx is a technology company that specializes in commercial business, physical infrastructure, and software services.

$23.2M raised
May 2022

Founder Contacts

41,000+ verified contacts

Zug, Switzerland

An intent-centric, privacy-preserving protocol for decentralized counterparty discovery, solving, and multi-chain atomic settlement.

$25.0M raised
May 2023

Founder Contacts

41,000+ verified contacts

Boston, United States

Foundation builds Passport Prime: Human Authority Hardware. Secure your keys, codes, wallets, agents, and apps built with KeyOS SDK.

$6.4M raised
May 2026

Founder Contacts

41,000+ verified contacts

Stanford, United States

Socket is a developer-first security platform that protects your most critical apps from software supply chain attacks.

$60.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

Boston, United States

Starburst offers a data lakehouse platform unifying access to distributed data across cloud, on-premises, and hybrid environments.

May 2025

Founder Contacts

41,000+ verified contacts

New York, United States

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

$16.5M raised
May 2022

Founder Contacts

41,000+ verified contacts

San Francisco, United States

HumanSignal provides human data services and infrastructure to evaluate, train, and fine-tune AI.

$25.0M raised
May 2022

Founder Contacts

41,000+ verified contacts

Ulster Park, United States

MarsX is an AI-powered low code platform with micro apps.

$1.0M raised
May 2022

Founder Contacts

41,000+ verified contacts

Helsinki, Finland

Aiven is a technology-driven company that enables businesses to manage an open-source data infrastructure in the cloud.

$210.0M raised
May 2022

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Mastra is a Typescript framework to build AI agents

Apr 2026

Founder Contacts

41,000+ verified contacts

New York, United States

DecentralGPT is a decentralized AI network for LLM inference, supporting open and closed-source models.

$7.0M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Appwrite is a secure end-to-end BaaS for Web, Mobile, and Flutter developers

$27.0M raised
Apr 2022

Founder Contacts

41,000+ verified contacts

Newcastle Upon Tyne, United Kingdom

Xbim provides digital solution services.

$656K raised
Apr 2022

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Purism beautiful computers designed to respect and protect your privacy, security and freedom.

$413K raised
Apr 2024

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Smallstep is an open-source toolkit to automate certificate administration and secure infrastructures.

$19.0M raised
Apr 2022

Founder Contacts

41,000+ verified contacts

New York, United States

Nous Research is a decentralized AI startup that focuses on developing open-source, human-centric artificial intelligence models and tools.

$50.0M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

QuestDB is an open-source SQL database designed to process time-series data, faster.

Apr 2024

Founder Contacts

41,000+ verified contacts

San Jose, United States

Open source infrastructure that allows people, entities, and things—including AI—to connect securely while being invisible to bad actors

$164K raised
Apr 2023

Founder Contacts

41,000+ verified contacts

Cupertino, United States

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

$60.0M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

Mountain View, United States

Firezone is an open-source security platform to manage secure remote access for teams.

Apr 2022

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Speckle is a collaborative data hub that connects various AEC (Architecture, Engineering, and Construction) tools.

Apr 2026

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Parasail is an AI deployment network that enables organizations to run and scale AI workloads without managing physical hardware.

$32.0M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Alien is a project building a decentralized “proof of humanity” and identity network designed for the age of AI, with blockchain and token.

$7.1M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

Berlin, Germany

The closed-loop AI development platform for all software that runs on a chip

$1.6M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Showing 51 to 75 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
$22.9M
Total Funding Tracked
$572.8M
Countries Represented
6

Distribution by Funding Stage

Other25 companies

Top Cities for Open Source

1.San Francisco
8 companies$110.5M
2.New York
3 companies$73.5M
3.Boston
2 companies$6.4M
4.Wilmington
1 companies$750K
5.Oslo
1 companies$23.2M

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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