Harpoon Ventures

Harpoon Ventures is a California-based venture capital firm founded in 2018 that focuses on early-stage and growth investments in technology companies. It operates from San Diego, with activities linked to Silicon Valley and the US government markets, and emphasizes supporting companies across sectors such as artificial intelligence, machine learning, autonomy, enterprise software, fintech, security, space, and synthetic biology. The firm seeks to back commercial products and scalable ventures, offering capital and strategic support to help portfolio companies scale.

William Allen

General Partner

Austin Hays

Partner

Larsen Jensen

General Partner

Riley Loftus

Investor

Alexa M. Monti

Partner

Jeff Torrance

Partner

Jimmy Yun

Partner

Matias Zorrilla

Investor

Past deals in Open Source

n8n

Series B in 2025
n8n is an open-source workflow automation platform that connects applications, automates processes, and can integrate AI capabilities into business operations. It provides a visual, node-based interface for building custom workflows and can be self-hosted or hosted, with data synchronization, secure access, and data storage across diverse apps and databases. The platform enables automation of daily tasks without extensive coding and is based in Berlin, Germany.

Semgrep

Series D in 2025
Semgrep is a static code analysis platform that helps improve software security and reliability. It scrutinizes and ranks code from the entire software ecosystem to surface vulnerabilities, unsafe patterns, and examples of excellence from tech giants and open source leaders. The platform empowers developers, security teams, and researchers to compare the safety of open source projects, adopt best practices, and pursue secure coding, while facilitating fast software delivery rather than hindering it.

Firestorm

Series A in 2024
Firestorm develops modular open-source unmanned aerial platforms and related hardware and software designed for defense applications. The company focuses on open-architecture systems that enable rapid, distributed manufacturing and mission-adaptable configurations. Its platforms feature swappable propulsion and payload options and are supported by mobile micro-factories that enable rapid drone production through advanced additive manufacturing. By enabling customizable, low-cost aerial systems, Firestorm aims to support military and defense operators across varied terrains and missions with adaptable, scalable solutions.

deepset

Series B in 2023
Deepset is a technology company that specializes in natural language processing (NLP) solutions, providing tools and frameworks for enterprise AI teams. Established in 2018, the company is known for its Haystack open-source framework, which facilitates the development of NLP applications. Deepset's software leverages advancements in machine learning and transfer learning to enable users to extract value from diverse text sources and create customized models with reduced training data requirements. Through its offerings, deepset has supported numerous AI teams worldwide in applying cutting-edge NLP technologies to practical, real-world challenges. Additionally, the company provides deepset Cloud, an LLM platform that enhances collaboration and efficiency for enterprises focused on AI development.

n8n

Convertible Note in 2022
n8n is an open-source workflow automation platform that connects applications, automates processes, and can integrate AI capabilities into business operations. It provides a visual, node-based interface for building custom workflows and can be self-hosted or hosted, with data synchronization, secure access, and data storage across diverse apps and databases. The platform enables automation of daily tasks without extensive coding and is based in Berlin, Germany.

deepset

Series A in 2022
Deepset is a technology company that specializes in natural language processing (NLP) solutions, providing tools and frameworks for enterprise AI teams. Established in 2018, the company is known for its Haystack open-source framework, which facilitates the development of NLP applications. Deepset's software leverages advancements in machine learning and transfer learning to enable users to extract value from diverse text sources and create customized models with reduced training data requirements. Through its offerings, deepset has supported numerous AI teams worldwide in applying cutting-edge NLP technologies to practical, real-world challenges. Additionally, the company provides deepset Cloud, an LLM platform that enhances collaboration and efficiency for enterprises focused on AI development.

RoboCorp

Series A in 2021
RoboCorp Technologies, Inc., established in 2019 and headquartered in San Francisco, specializes in cloud-based, open-source Robotic Process Automation (RPA). The company simplifies the use of open-source tools by providing a cloud-native platform, enabling developers to integrate RPA into their organizations efficiently and without the constraints of traditional offerings.

n8n

Series A in 2021
n8n is an open-source workflow automation platform that connects applications, automates processes, and can integrate AI capabilities into business operations. It provides a visual, node-based interface for building custom workflows and can be self-hosted or hosted, with data synchronization, secure access, and data storage across diverse apps and databases. The platform enables automation of daily tasks without extensive coding and is based in Berlin, Germany.

Semgrep

Series A in 2020
Semgrep is a static code analysis platform that helps improve software security and reliability. It scrutinizes and ranks code from the entire software ecosystem to surface vulnerabilities, unsafe patterns, and examples of excellence from tech giants and open source leaders. The platform empowers developers, security teams, and researchers to compare the safety of open source projects, adopt best practices, and pursue secure coding, while facilitating fast software delivery rather than hindering it.

RoboCorp

Seed Round in 2020
RoboCorp Technologies, Inc., established in 2019 and headquartered in San Francisco, specializes in cloud-based, open-source Robotic Process Automation (RPA). The company simplifies the use of open-source tools by providing a cloud-native platform, enabling developers to integrate RPA into their organizations efficiently and without the constraints of traditional offerings.
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