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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
$65.9M
Avg Funding
$7.3M
Cities
8

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Wilmington, United States

Catalyst is an open-source liquidity protocol for modular blockchains, developed by Cata Labs.

Jan 2024
Seed

Founder Contacts

41,000+ verified contacts

Seattle, United States
$8.1M
raised

Hedgehog delivers open networking software allows organizations design, deploy, and operate modern AI data centers

Nov 2025
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$5.3M
raised

Langtrace AI is an open source LLM application observability and evaluations platform

Oct 2022
Seed

Founder Contacts

41,000+ verified contacts

Suwalki, Poland
$500K
raised

Reactive Data Processing Company

Oct 2021
Pre-Seed

Founder Contacts

41,000+ verified contacts

Berlin, Germany
$17.0M
raised

Immerok is building a fully managed Apache Flink cloud service for real-time stream processing applications at scale.

Oct 2022
Seed

Founder Contacts

41,000+ verified contacts

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Zug, Switzerland
$10.0M
raised

CUE Labs is a new platform focused on turning configuration management from a source of chaos into a source of reliability.

Oct 2025
Seed

Founder Contacts

41,000+ verified contacts

Keila, Estonia
$12.0M
raised

AutoGPT is a developer of open-source experimental applications.

Oct 2023
Seed

Founder Contacts

41,000+ verified contacts

London, United Kingdom
$2.5M
raised

Security building blocks for the AI era, helping companies prioritize AI security and deploy compliant cloud applications faster.

Oct 2021
Seed

Founder Contacts

41,000+ verified contacts

San Francisco, United States
$10.5M
raised

NocoDB is an open-source nocode database that instantly provides spreadsheets over databases.

Oct 2022
Seed

Founder Contacts

41,000+ verified contacts

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