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

42 past transactions

n8n

Series B in 2025
n8n GmbH, founded in 2019 and based in Berlin, Germany, develops an open-source workflow automation tool that allows users to connect various applications and automate processes. The platform offers a visual, node-based interface, enabling users to create custom workflows without needing extensive coding skills. n8n's solution facilitates daily task automation, data synchronization, and integration of AI capabilities into business operations. The tool automatically sends notifications for new repository activities, helps users create nodes, and provides secure access while efficiently storing and synchronizing data between different applications and databases. Through its innovative approach, n8n aims to make automation more accessible and efficient for its clients.

Semgrep

Series D in 2025
Semgrep is a software tool that analyzes code statically to enhance security and reliability. It aims to facilitate swift development by providing tools for engineers and developers to write secure code. The platform automatically reviews and ranks code from various sources, identifying vulnerabilities and best practices, enabling users to compare project safety and learn from industry leaders.

General Galactic

Seed Round in 2024
General Galactic is a technology company that produces clean fuel by converting air and waste CO2 into synthetic hydrocarbons using renewable electricity. Its modular hardware systems enable on-site fuel production, making clean energy more accessible and affordable. The company's technology captures and upgrades emissions from various sources, transforming them into renewable hydrocarbon fuels that are compatible with existing infrastructure.

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.

Aalo Atomics

Series A in 2024
Aalo Atomics manufactures compact nuclear reactors designed for various applications, from powering data centers to entire cities. Their reactors are factory-built, liquid metal-cooled, and feature built-in safety measures.

Lumos

Series B in 2024
Lumos is an IT company specializing in secure management processes. It offers SaaS management and access management services, along with flexible workflows and spend management solutions.

Tarsal

Seed Round in 2024
Tarsal is a developer of a data pipeline platform focused on the secure movement of data. The company's technology enables clients to ingest and normalize security data from various sources, applying standardized fields such as IP addresses and domain names to log records. Tarsal’s platform facilitates the filtering, enriching, and routing of data, allowing for centralized logging that can be reliably loaded into desired destinations. This streamlined approach is designed to meet the specific needs of security teams by providing a fully managed and user-friendly data pipeline solution.

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.

Oso

Series A in 2023
Oso Security Inc. is an information technology company based in New York that specializes in backend infrastructure security software for developers. Founded in 2018, the company provides a platform that simplifies the integration of authorization into the software development process. Its software includes features for authentication, authorization, end-to-end encryption, and auditing, offering a consistent interface for core security controls. This enables developers to build and maintain secure infrastructure and applications efficiently. Oso Security Inc. was previously known as Keesh, Inc. and focuses on enhancing the security capabilities of businesses and organizations.

Graphiant

Series B in 2023
Graphiant is a Silicon Valley-based networking company focused on software-defined wide area networking. Founded in 2020, it develops SD-WAN technology and offers Graphiant Network Edge, a software-as-a-service platform that connects the enterprise WAN, hybrid cloud, network edge, customers, and partners, enabling rapid, enterprise-grade connectivity. Based in California, Graphiant aims to simplify and accelerate connectivity for large organizations by delivering agility and scalable network performance across on-premises, cloud, and edge environments.

Vantage

Series A in 2023
Vantage is a service that helps businesses manage and optimize their cloud infrastructure costs. Vantage's mission is to build a suite of tools that make it easy for engineering, leadership, and finance to analyze, collaborate on and optimize their cloud infrastructure costs. The platform currently supports AWS, Azure, Google Cloud, Databricks, Snowflake, New Relic, Datadog, Fastly, MongoDB, and Kubernetes.

n8n

Convertible Note in 2022
n8n GmbH, founded in 2019 and based in Berlin, Germany, develops an open-source workflow automation tool that allows users to connect various applications and automate processes. The platform offers a visual, node-based interface, enabling users to create custom workflows without needing extensive coding skills. n8n's solution facilitates daily task automation, data synchronization, and integration of AI capabilities into business operations. The tool automatically sends notifications for new repository activities, helps users create nodes, and provides secure access while efficiently storing and synchronizing data between different applications and databases. Through its innovative approach, n8n aims to make automation more accessible and efficient for its clients.

WireScreen

Series A in 2022
WireScreen is a prominent business intelligence platform specializing in China and global supply chain trends. The company provides corporations and government agencies with comprehensive, accurate, and actionable data on millions of companies and their leadership. By focusing on China's economic rise and its impact on global business, finance, trade, labor, and the environment, WireScreen delivers reliable news and information that empowers clients to make informed decisions. This commitment to understanding and explaining complex global dynamics enables organizations to navigate the evolving business landscape effectively and identify potential investment opportunities.

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.

Truera

Series B in 2022
Truera, Inc. is a technology company based in Redwood City, California, founded in 2014, that specializes in model intelligence solutions aimed at enhancing machine learning investments. The company offers a platform that enables organizations to understand and interpret machine learning predictions, thereby building trust in their AI systems across various industries. Truera's software solutions focus on testing, analyzing, and monitoring machine learning models, helping enterprises improve model quality and governance while addressing challenges associated with black-box algorithms. Its platform has become integral to the machine learning workflow for data science, ML engineering, and MLOps professionals, delivering substantial value to prominent companies in sectors such as banking, insurance, technology, and publishing.

Decodable

Series A in 2022
Decodable is a serverless data integration and engineering platform focused on streaming data, founded in 2021 by Eric Sammer and headquartered in San Francisco, California. The company offers a software solution that enables applications and data engineers to construct complex data pipelines efficiently. Its platform facilitates seamless connections to various existing messaging, storage, and database systems, allowing users to rapidly collect, process, and deliver data to both offline and online systems. Through its innovative approach, Decodable aims to simplify the management of streaming data, enhancing the capabilities of organizations in handling real-time data flows.

Robust Intelligence

Series B in 2021
Robust Intelligence, Inc., founded in 2019 and based in San Francisco, California, develops software designed to enhance the security and reliability of artificial intelligence (AI) systems. The company offers an automated platform that identifies and mitigates vulnerabilities in AI models throughout the development life cycle. Its solution includes proprietary red teaming and threat intelligence features, ensuring secure deployment of AI in production settings. Robust Intelligence's platform comprises two main components: automated tests for pre-production models and quality assurance checks for models in production. This dual approach enables clients to detect and eliminate contaminated data, ultimately improving model performance in complex environments. The company's services are trusted by innovators seeking to safeguard their enterprises against AI-related risks.

CyCognito

Series C in 2021
Founded in 2017, CyCognito specializes in advanced cybersecurity services. Its automated platform uses machine learning and natural language processing to mimic potential attackers' perspectives, enabling organizations to identify, understand, and mitigate external cyber risks effectively.

Netography

Series A in 2021
Netography, Inc. is a cybersecurity company founded in 2018 and based in Annapolis, Maryland. It specializes in providing cloud-based network security solutions tailored for organizations operating in hybrid and multi-cloud environments. The company's flagship offering, Netography Fusion, is a cloud-native Network Defense Platform that enhances security operations by enabling organizations to monitor and respond to network anomalies and threats from a unified console. By utilizing existing network device data and advanced algorithms, Netography's platform detects early indicators of attacks and facilitates automated responses, allowing clients to prevent network threats proactively. This approach eliminates the need for traditional sensors, agents, or taps, thereby streamlining security operations and improving the effectiveness of security, network, and cloud teams.

Cyabra

Series A in 2021
Cyabra employs advanced AI and machine learning to combat disinformation online. It safeguards businesses and governments by identifying fake profiles, harmful narratives, and synthetic content in real-time.

Encord

Series A in 2021
Encord offers a unified platform dedicated to streamlining data development for advanced vision and multimodal AI teams. The company specializes in building tools and infrastructure that accelerate model deployment by providing a data-centric testing framework, human-centric annotation tools for labeling and reinforcement learning from human feedback (RLHF), and robust data curation management software. Encord's platform aims to automate manual annotation tasks, enabling data scientists and researchers to efficiently tackle machine learning application challenges.

LeapYear

Venture Round in 2021
LeapYear Technologies, Inc., established in 2014 and headquartered in Berkeley, California, specializes in developing a platform that enables enterprises to securely extract value from their most sensitive data. The platform employs differential privacy, a mathematically proven standard, to protect data while allowing it to be leveraged for machine learning purposes. This allows domain experts, data scientists, and partner organizations to create automated machine learning applications and APIs, monetizing previously inaccessible or restricted data sources. LeapYear has collaborated with major companies across various sectors, including financial services, healthcare, technology, and insurance, to combine, analyze, and securely utilize previously siloed information.

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.

Merlin Labs

Series B in 2021
Founded in 2018, Merlin Labs is based in Boston, Massachusetts. It specializes in developing autonomous flight technology for fixed-wing aircraft, using artificial intelligence and machine learning to enable goods transportation without human pilots.

Toucan

Seed Round in 2021
Toucan is a company based in Santa Monica, California, founded in 2019, that focuses on language learning through a browser extension. This extension allows users to translate words and phrases into various languages while they browse the web, facilitating language acquisition in a natural context. By integrating translations into everyday online activities, Toucan helps users expand their vocabulary without the need for traditional methods such as flashcards or formal classes. The company employs specialists in habit formation, learning, and human behavior to optimize the learning experience, making it more accessible and engaging for users.

n8n

Series A in 2021
n8n GmbH, founded in 2019 and based in Berlin, Germany, develops an open-source workflow automation tool that allows users to connect various applications and automate processes. The platform offers a visual, node-based interface, enabling users to create custom workflows without needing extensive coding skills. n8n's solution facilitates daily task automation, data synchronization, and integration of AI capabilities into business operations. The tool automatically sends notifications for new repository activities, helps users create nodes, and provides secure access while efficiently storing and synchronizing data between different applications and databases. Through its innovative approach, n8n aims to make automation more accessible and efficient for its clients.

Genesis Therapeutics

Series A in 2020
Founded in 2019, Genesis Therapeutics is a biotechnology company based in South San Francisco, California. It specializes in developing small molecule drug candidates for treating debilitating disorders using artificial intelligence-driven platforms.

Semgrep

Series A in 2020
Semgrep is a software tool that analyzes code statically to enhance security and reliability. It aims to facilitate swift development by providing tools for engineers and developers to write secure code. The platform automatically reviews and ranks code from various sources, identifying vulnerabilities and best practices, enabling users to compare project safety and learn from industry leaders.

Truera

Series A in 2020
Truera, Inc. is a technology company based in Redwood City, California, founded in 2014, that specializes in model intelligence solutions aimed at enhancing machine learning investments. The company offers a platform that enables organizations to understand and interpret machine learning predictions, thereby building trust in their AI systems across various industries. Truera's software solutions focus on testing, analyzing, and monitoring machine learning models, helping enterprises improve model quality and governance while addressing challenges associated with black-box algorithms. Its platform has become integral to the machine learning workflow for data science, ML engineering, and MLOps professionals, delivering substantial value to prominent companies in sectors such as banking, insurance, technology, and publishing.

Infiot

Series A in 2020
Infiot Inc. is an information technology company that specializes in cloud-delivered architecture for the Internet of Things (IoT) industry. Founded in 2018 and headquartered in San Jose, California, with an additional office in Chennai, India, Infiot's platform facilitates data collection, delivery, and storage essential for commercial IoT services. The company's offerings are particularly beneficial for remote users and various sectors, including education, healthcare, manufacturing, retail, and financial services. By enabling secure connections over LTE and 5G cellular networks, Infiot helps organizations optimize their operations, enhance security, and maintain compliance with industry regulations.

Golden

Series A in 2020
Golden is a developer of a self-constructing knowledge platform designed to aggregate information from various public and private sources, creating a comprehensive repository. The company's platform employs natural language processing to facilitate structured representation of entities and topics, making detailed and canonical information easily searchable and accessible. By leveraging both human effort and machine intelligence, Golden enhances the process of knowledge gathering and communication. Its features include powerful search capabilities, fine-grain alerts to track changes, and semi-automatic research assistance, all aimed at helping organizations stay informed and leverage the latest industry trends. This approach improves collaboration among researchers and academics while enhancing operational efficiency.

Volansi

Series B in 2020
Volansi, Inc. is a logistics and transportation company specializing in the manufacture of heavy-payload drones designed for commercial, defense, and humanitarian use. Founded in 2015 and headquartered in Concord, California, Volansi develops autonomous aerial delivery systems that enable time-critical shipments over long distances. The company's unmanned aerial vehicles are utilized across various industries, including construction, oil and gas, mining, and healthcare, providing on-demand and point-to-point delivery solutions. By focusing on fixed routes, Volansi addresses specific logistical challenges related to time and cost, enhancing the efficiency of goods delivery for enterprise customers.

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.

Confluera

Series B in 2020
Confluera is a cybersecurity company based in Palo Alto that builds an autonomous detection and response platform. The platform uses a continuous attack graph to track the full cyber kill chain across an organization’s infrastructure, automatically identifying and stopping attackers in real time. By correlating threat data and activity trails, it eliminates manual triage and reduces false positives, allowing security teams to focus on higher‑value tasks.

Genesis Therapeutics

Venture Round in 2020
Founded in 2019, Genesis Therapeutics is a biotechnology company based in South San Francisco, California. It specializes in developing small molecule drug candidates for treating debilitating disorders using artificial intelligence-driven platforms.

Astranis

Series B in 2020
Astranis develops innovative satellite technology to provide targeted internet access to underserved regions. The company manufactures small satellites for high-orbit deployment, serving diverse sectors such as defense, commercial communications, oil and gas, and telecommunications.

Robust Intelligence

Series A in 2020
Robust Intelligence, Inc., founded in 2019 and based in San Francisco, California, develops software designed to enhance the security and reliability of artificial intelligence (AI) systems. The company offers an automated platform that identifies and mitigates vulnerabilities in AI models throughout the development life cycle. Its solution includes proprietary red teaming and threat intelligence features, ensuring secure deployment of AI in production settings. Robust Intelligence's platform comprises two main components: automated tests for pre-production models and quality assurance checks for models in production. This dual approach enables clients to detect and eliminate contaminated data, ultimately improving model performance in complex environments. The company's services are trusted by innovators seeking to safeguard their enterprises against AI-related risks.

Confluera

Series A in 2019
Confluera is a cybersecurity company based in Palo Alto that builds an autonomous detection and response platform. The platform uses a continuous attack graph to track the full cyber kill chain across an organization’s infrastructure, automatically identifying and stopping attackers in real time. By correlating threat data and activity trails, it eliminates manual triage and reduces false positives, allowing security teams to focus on higher‑value tasks.

Shift

Venture Round in 2019
Shift is a career advancement company focused on providing career assistance to current and former U.S. military members. The organization offers immersive fellowship programs designed to help veterans transition into technology careers by placing them in internships within Silicon Valley during their final months of active duty. These programs, which last between three to six months, allow participants to maintain their military pay and benefits while gaining valuable experience. Shift also emphasizes talent acquisition, connecting veterans with organizations that recognize their skills and experiences. By aligning Department of Defense initiatives with emerging technologies, Shift aims to enhance the defense-industrial partnership, supporting national security and economic growth while empowering military members to develop competitive careers.

Aril

Seed Round in 2019
Founded in 1991, Aril specializes in embedded processor solutions. It offers Optimized RISC-V Processor technology for performance, power, area, security, and safety in embedded computing SOCs and domain-specific architectures.

Robust Intelligence

Seed Round in 2019
Robust Intelligence, Inc., founded in 2019 and based in San Francisco, California, develops software designed to enhance the security and reliability of artificial intelligence (AI) systems. The company offers an automated platform that identifies and mitigates vulnerabilities in AI models throughout the development life cycle. Its solution includes proprietary red teaming and threat intelligence features, ensuring secure deployment of AI in production settings. Robust Intelligence's platform comprises two main components: automated tests for pre-production models and quality assurance checks for models in production. This dual approach enables clients to detect and eliminate contaminated data, ultimately improving model performance in complex environments. The company's services are trusted by innovators seeking to safeguard their enterprises against AI-related risks.

Somite

Somite.ai is a venture-backed company aiming to become the OpenAI of stem cell biology, developing AI foundation models to produce human tissue for cell therapies at scale for diseases such as diabetes, obesity, and muscular dystrophies. Somite's AI platform, AlphaStem, fuels a virtuous cycle: It enables new cell therapies, generating massive data that further improve the platform, empowering even faster therapy creation with broader applications. The company's pipeline includes the promising SMT-M01 program for Duchenne muscular dystrophy (DMD) and the SMT-B01 program for metabolic disorders. Incorporated in Oct. 2023, Somite.ai has raised over $10m to date.
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