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Seed Open Source Companies

Explore 134 open source startups that raised seed funding. Access verified founder contact information and fundraising data.

Total Companies
134
Total Funding
$72.4M
Avg Funding
$2.9M
Cities
13

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San Francisco, United States
$6.0M
raised

Infrastructure for AI Systems.

Jun 2023
Seed

Founder Contacts

41,000+ verified contacts

Sandy, United States
$8.0M
raised

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

May 2023
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$4.5M
raised

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

Apr 2023
Seed

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$7.5M
raised

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

Apr 2023
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

AI Document Processing

Apr 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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London, United Kingdom
$500K
raised

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

Apr 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

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

Apr 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$2.2M
raised

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

Apr 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$1.5M
raised

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

Apr 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

Portland, United States
$500K
raised

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

Apr 2023
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
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London, United Kingdom
$8.5M
raised

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

Jan 2023
Seed

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
Pre-Seed

Founder Contacts

41,000+ verified contacts

Antwerp, Belgium
$1.2M
raised

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

Dec 2025
Seed

Founder Contacts

41,000+ verified contacts

Lenexa, United States
$1.5M
raised

OpenRelay is a distributed relayer of fine order book infrastructures.

Dec 2021
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

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

Dec 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

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41,000+ verified emails
Unlimited exports
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San Francisco, United States
$500K
raised

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

Dec 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$500K
raised

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

Dec 2025
Pre-Seed

Founder Contacts

41,000+ verified contacts

Tallinn, Estonia
$5.7M
raised

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

Dec 2021
Seed

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
Seed

Founder Contacts

41,000+ verified contacts

Union City, United States
$3.0M
raised

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

Dec 2021
Seed

Founder Contacts

41,000+ verified contacts

Ready to Reach These Founders?

Get verified contact info for decision-makers at 134 funded startups

41,000+ verified emails
Unlimited exports
No credit card required
San Francisco, United States
$8.0M
raised

Kilo Code provides an open-source AI-powered coding assistant that supports code generation, debugging, and documentation.

Dec 2025
Seed

Founder Contacts

41,000+ verified contacts

Reggio Nell'emilia, Italy
$1.2M
raised

Pioneering Data Management for Physical AI and Robotics.

Jan 2026
Pre-Seed

Founder Contacts

41,000+ verified contacts

Groningen, The Netherlands
$4.6M
raised

Odyssey is the maker of metaverse stack for collaboration based in The Netherlands.

Nov 2021
Seed

Founder Contacts

41,000+ verified contacts

Los Altos, United States
$5.2M
raised

A No-code LLM platform to eliminate manual processes and automate workflows involving unstructured data.

Nov 2022
Seed

Founder Contacts

41,000+ verified contacts

Carver, United States
$250K
raised

Open Source Software Development

Jan 2024
Pre-Seed

Founder Contacts

41,000+ verified contacts

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