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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
$1.4B
Avg Funding
$55.2M
Global Reach
7
countries

Top Cities for Open Source

San Francisco
New York
San Jose
Cupertino
London
Berlin

Recently Funded Companies

Export
San Francisco, United States

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

$19.0M raised
Apr 2022

Founder Contacts

30,000+ 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

30,000+ verified contacts

San Francisco, United States

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

Apr 2024

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ verified contacts

London, United Kingdom

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

Apr 2026

Founder Contacts

30,000+ 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

30,000+ 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

30,000+ 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

30,000+ verified contacts

Espoo, Finland

Lifetime is AI innovation and Digital Transformation Consultancy Powerhouse. We deliver World-Class Firehorse Products fe. the DWS IQ 6

$153K raised
Apr 2023

Founder Contacts

30,000+ verified contacts

San Francisco, United States

SCRT Labs shares and analyzes encrypted data.

$10.0M raised
Apr 2022

Founder Contacts

30,000+ verified contacts

San Francisco, United States

The leading community for developers to discover, compare and choose open-source technologies.

$2.4M raised
Apr 2022

Founder Contacts

30,000+ verified contacts

Madrid, Spain

Kaleidos is an open-source project management platform for tech-heavy startups.

$12.0M raised
Mar 2023

Founder Contacts

30,000+ verified contacts

San Diego, United States

Developing AI Refactoring Tools for Enterprise Security and Technical Debt Reduction

$3.0M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Paris, France

Kestra is an orchestration platform that serves as the control plane for business-critical workflows across data, infrastructure, and AI.

$25.0M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Paris, France

Mistral AI is an AI platform that provides large language models and AI services tailored to diverse enterprise applications.

$830.0M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Boston, United States

Inrupt is delivering Sir Tim Berners-Lee’s original vision of a web of shared benefit, for everyone.

Mar 2022

Founder Contacts

30,000+ verified contacts

Wilmington, United States

FerretDB is an open source MongoDB-compatible database

$2.8M raised
Mar 2022

Founder Contacts

30,000+ verified contacts

New York, United States

SkipLabs builds infrastructure for reactive applications.

$8.0M raised
Mar 2025

Founder Contacts

30,000+ verified contacts

Commerce City, United States

Sol PBC is a public benefits company that offers open-source tools and services for individuals to gain insight from their personal data.

$250K raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Berlin, Germany

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

$50.0M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

New York, United States

Grafana Labs is an open-source software platform built to support monitoring, visualization, and metric analytics.

$250.0M raised
Mar 2026

Founder Contacts

30,000+ verified contacts

Brussels, Belgium

Data Access Management for the Modern Data Team

Feb 2024

Founder Contacts

30,000+ verified contacts

Washington, United States

Prefect is a Python-based orchestration platform that empowers data teams to build resilient, adaptable data pipelines and workflows.

$14.0M raised
Feb 2024

Founder Contacts

30,000+ verified contacts

London, United Kingdom

Mizar is a crypto trading company that provides information management solutions to serve the Oracle user community.

$3.0M raised
Feb 2022

Founder Contacts

30,000+ verified contacts

Showing 51 to 75 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
$55.2M
Total Funding Tracked
$1.4B
Countries Represented
7

Distribution by Funding Stage

Other25 companies

Top Cities for Open Source

1.San Francisco
6 companies$70.5M
2.New York
3 companies$308.0M
3.London
2 companies$3.0M
4.Berlin
2 companies$51.6M
5.Paris
2 companies$855.0M

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