Portfolio

We back groundbreaking technology companies in AI, cybersecurity, infrastructure, and deep tech. Harpoon invests in the risk takers, outliers, pioneers, and innovators building category defining businesses.

Reimagining the chemicals industry

Coming soon...

Reimagining the chemicals industry

Acq.

by

IPO

Stealth

by

Reimagining the chemicals industry

Reimagining the chemicals industry

Energy / Materials

Solugen

Reimagining the chemicals industry

Acq.

by

IPO

Active

Secure and AI-native workflow automation

Coming soon...

Secure and AI-native workflow automation

Acq.

by

IPO

Stealth

by

Secure and AI-native workflow automation

Secure and AI-native workflow automation

AI / Compute

n8n

Secure and AI-native workflow automation

Acq.

by

IPO

Active

Dedicated connectivity anywhere

Coming soon...

Dedicated connectivity anywhere

Acq.

by

IPO

Stealth

by

Dedicated connectivity anywhere

Dedicated connectivity anywhere

Aerospace / Defense

Astranis

Dedicated connectivity anywhere

Acq.

by

IPO

Active

Clean energy future for everyone

Coming soon...

Clean energy future for everyone

Acq.

by

IPO

Stealth

by

Clean energy future for everyone

Clean energy future for everyone

Energy / Materials

Aalo Atomics

Clean energy future for everyone

Acq.

by

IPO

Active

High throughput chips for LLMs

Coming soon...

High throughput chips for LLMs

Acq.

by

IPO

Stealth

by

High throughput chips for LLMs

High throughput chips for LLMs

AI / Compute

MatX

High throughput chips for LLMs

Acq.

by

IPO

Active

Genesis Molecular AI

The AI Operating System for drug discovery

Coming soon...

The AI Operating System for drug discovery

Acq.

by

IPO

Stealth

by

Genesis Molecular AI

The AI Operating System for drug discovery

Genesis Molecular AI

The AI Operating System for drug discovery

Biotech / Biosecurity

Genesis Molecular AI

The AI Operating System for drug discovery

Acq.

by

IPO

Active

Radically affordable, mission-adaptable UAS

Coming soon...

Radically affordable, mission-adaptable UAS

Acq.

by

IPO

Stealth

by

Radically affordable, mission-adaptable UAS

Radically affordable, mission-adaptable UAS

Aerospace / Defense

Manufacturing / Robotics

Firestorm Labs

Radically affordable, mission-adaptable UAS

Acq.

by

IPO

Active

Complete data development for AI

Coming soon...

Complete data development for AI

Acq.

by

IPO

Stealth

by

Complete data development for AI

Complete data development for AI

AI / Compute

Software Infrastructure

Encord

Complete data development for AI

Acq.

by

IPO

Active

Automation-as-code AI agent framework

Coming soon...

Automation-as-code AI agent framework

Acq.

by

IPO

Stealth

by

Automation-as-code AI agent framework

Automation-as-code AI agent framework

AI / Compute

Sema4.ai

Automation-as-code AI agent framework

Acq.

by

IPO

Active

Critical mission advanced propulsion systems

Coming soon...

Critical mission advanced propulsion systems

Acq.

by

IPO

Stealth

by

Critical mission advanced propulsion systems

Critical mission advanced propulsion systems

Aerospace / Defense

Ursa Major

Critical mission advanced propulsion systems

Acq.

by

IPO

Active

Propelling the future of fully autonomous flight

Coming soon...

Propelling the future of fully autonomous flight

Acq.

by

IPO

Stealth

by

Propelling the future of fully autonomous flight

Propelling the future of fully autonomous flight

Aerospace / Defense

Merlin Labs

Propelling the future of fully autonomous flight

Acq.

by

IPO

Active

SaaS management and identity governance

Coming soon...

SaaS management and identity governance

Acq.

by

IPO

Stealth

by

SaaS management and identity governance

SaaS management and identity governance

Software Infrastructure

Lumos

SaaS management and identity governance

Acq.

by

IPO

Active

Glyphic Biotechnologies

Next generation protein sequencing

Coming soon...

Next generation protein sequencing

Acq.

by

IPO

Stealth

by

Glyphic Biotechnologies

Next generation protein sequencing

Glyphic Biotechnologies

Next generation protein sequencing

Biotech / Biosecurity

Glyphic Biotechnologies

Next generation protein sequencing

Acq.

by

IPO

Active

Engineering-centric code security

Coming soon...

Engineering-centric code security

Acq.

by

IPO

Stealth

by

Engineering-centric code security

Engineering-centric code security

IT / Cybersecurity

Semgrep

Engineering-centric code security

Acq.

by

IPO

Active

Track and manage cloud costs

Coming soon...

Track and manage cloud costs

Acq.

by

IPO

Stealth

by

Track and manage cloud costs

Track and manage cloud costs

Software Infrastructure

Vantage

Track and manage cloud costs

Acq.

by

IPO

Active

Reclaiming American tech superiority

Coming soon...

Reclaiming American tech superiority

Acq.

by

IPO

Stealth

by

Reclaiming American tech superiority

Reclaiming American tech superiority

Aerospace / Defense

Vector

Reclaiming American tech superiority

Acq.

by

IPO

Active

Cellular Intelligence

Building the first universal virtual cell

Coming soon...

Building the first universal virtual cell

Acq.

by

IPO

Stealth

by

Cellular Intelligence

Building the first universal virtual cell

Cellular Intelligence

Building the first universal virtual cell

Biotech / Biosecurity

Cellular Intelligence

Building the first universal virtual cell

Acq.

by

IPO

Active

Fully autonomous driver for any fleet

Coming soon...

Fully autonomous driver for any fleet

Acq.

by

IPO

Stealth

by

Fully autonomous driver for any fleet

Fully autonomous driver for any fleet

Aerospace / Defense

Kodiak

Fully autonomous driver for any fleet

Acq.

by

IPO

IPO

Material Security

Multi-layered visibility, defense-in-depth and security infrastructure

Coming soon...

Multi-layered visibility, defense-in-depth and security infrastructure

Acq.

by

IPO

Stealth

by

Material Security

Multi-layered visibility, defense-in-depth and security infrastructure

Material Security

Multi-layered visibility, defense-in-depth and security infrastructure

IT / Cybersecurity

Software Infrastructure

Material Security

Multi-layered visibility, defense-in-depth and security infrastructure

Acq.

by

IPO

Active

Global business intelligence platform

Coming soon...

Global business intelligence platform

Acq.

by

IPO

Stealth

by

Global business intelligence platform

Global business intelligence platform

Software Infrastructure

WireScreen

Global business intelligence platform

Acq.

by

IPO

Active

Software-defined circuit board automation

Coming soon...

Software-defined circuit board automation

Acq.

by

IPO

Stealth

by

Software-defined circuit board automation

Software-defined circuit board automation

Software Infrastructure

JITX

Software-defined circuit board automation

Acq.

by

IPO

Active

Actionable cybersecurity analysis and insights

Coming soon...

Actionable cybersecurity analysis and insights

Acq.

by

IPO

Stealth

by

Actionable cybersecurity analysis and insights

Actionable cybersecurity analysis and insights

IT / Cybersecurity

CyCognito

Actionable cybersecurity analysis and insights

Acq.

by

IPO

Active

Accelerating development and deployment of applications with LLMs

Coming soon...

Accelerating development and deployment of applications with LLMs

Acq.

by

IPO

Stealth

by

Accelerating development and deployment of applications with LLMs

Accelerating development and deployment of applications with LLMs

AI / Compute

Software Infrastructure

Deepset

Accelerating development and deployment of applications with LLMs

Acq.

by

IPO

Active

Edge network enterprise connectivity

Coming soon...

Edge network enterprise connectivity

Acq.

by

IPO

Stealth

by

Edge network enterprise connectivity

Edge network enterprise connectivity

Software Infrastructure

Graphiant

Edge network enterprise connectivity

Acq.

by

IPO

Active

Authorization-as-a-service to manage application control

Coming soon...

Authorization-as-a-service to manage application control

Acq.

by

IPO

Stealth

by

Authorization-as-a-service to manage application control

Authorization-as-a-service to manage application control

Software Infrastructure

Oso

Authorization-as-a-service to manage application control

Acq.

by

IPO

Active

Joint security for the modern network

Coming soon...

Joint security for the modern network

Acq.

by

IPO

Stealth

by

Joint security for the modern network

Joint security for the modern network

Software Infrastructure

Netography

Joint security for the modern network

Acq.

by

IPO

Active

Specialized treatments for mold and biotoxin illness

Coming soon...

Specialized treatments for mold and biotoxin illness

Acq.

by

IPO

Stealth

by

Specialized treatments for mold and biotoxin illness

Specialized treatments for mold and biotoxin illness

Biotech / Biosecurity

MoldCo

Specialized treatments for mold and biotoxin illness

Acq.

by

IPO

Active

General Galactic

The mobility layer for the final frontier

Coming soon...

The mobility layer for the final frontier

Acq.

by

IPO

Stealth

by

General Galactic

The mobility layer for the final frontier

General Galactic

The mobility layer for the final frontier

Aerospace / Defense

General Galactic

The mobility layer for the final frontier

Acq.

by

IPO

Active

Autonomy for every spacecraft

Coming soon...

Autonomy for every spacecraft

Acq.

by

IPO

Stealth

by

Autonomy for every spacecraft

Autonomy for every spacecraft

Aerospace / Defense

EraDrive

Autonomy for every spacecraft

Acq.

by

IPO

Active

Sustainably extracting and refining lithium

Coming soon...

Sustainably extracting and refining lithium

Acq.

by

IPO

Stealth

by

Sustainably extracting and refining lithium

Sustainably extracting and refining lithium

Energy / Materials

Electroflow

Sustainably extracting and refining lithium

Acq.

by

IPO

Active

Orbital Operations

High thrust space vehicles

Coming soon...

High thrust space vehicles

Acq.

by

IPO

Stealth

by

Orbital Operations

High thrust space vehicles

Orbital Operations

High thrust space vehicles

Aerospace / Defense

Orbital Operations

High thrust space vehicles

Acq.

by

IPO

Active

Critical actuation systems for commercial aviation and defense

Coming soon...

Critical actuation systems for commercial aviation and defense

Acq.

by

IPO

Stealth

by

Critical actuation systems for commercial aviation and defense

Critical actuation systems for commercial aviation and defense

Aerospace / Defense

Salient Motion

Critical actuation systems for commercial aviation and defense

Acq.

by

IPO

Active

Multi-modal virtual patient models

Coming soon...

Multi-modal virtual patient models

Acq.

by

IPO

Stealth

by

Multi-modal virtual patient models

Multi-modal virtual patient models

Biotech / Biosecurity

AI / Compute

Valinor

Multi-modal virtual patient models

Acq.

by

IPO

Active

3D printed batteries in custom geometries

Coming soon...

3D printed batteries in custom geometries

Acq.

by

IPO

Stealth

by

3D printed batteries in custom geometries

3D printed batteries in custom geometries

Energy / Materials

Manufacturing / Robotics

Aerospace / Defense

MATERIAL

3D printed batteries in custom geometries

Acq.

by

IPO

Active

Redefining cloud, data, and network security

Coming soon...

Redefining cloud, data, and network security

Acq.

by

IPO

Stealth

by

Redefining cloud, data, and network security

Redefining cloud, data, and network security

Software Infrastructure

IT / Cybersecurity

Netskope

Redefining cloud, data, and network security

Acq.

by

IPO

IPO

Organized pipeline for the modern security data stack

Coming soon...

Organized pipeline for the modern security data stack

Acq.

by

IPO

Stealth

by

Organized pipeline for the modern security data stack

Organized pipeline for the modern security data stack

IT / Cybersecurity

Monad

Organized pipeline for the modern security data stack

Acq.

by

IPO

Active

Modern, cloud-native network security and reliability

Coming soon...

Modern, cloud-native network security and reliability

Acq.

by

IPO

Stealth

by

Modern, cloud-native network security and reliability

Modern, cloud-native network security and reliability

IT / Cybersecurity

Buoyant

Modern, cloud-native network security and reliability

Acq.

by

IPO

Active

Truffle Security

Resolving exposed secrets across the tech stack

Coming soon...

Resolving exposed secrets across the tech stack

Acq.

by

IPO

Stealth

by

Truffle Security

Resolving exposed secrets across the tech stack

Truffle Security

Resolving exposed secrets across the tech stack

IT / Cybersecurity

Truffle Security

Resolving exposed secrets across the tech stack

Acq.

by

IPO

Active

One platform for ETL, ELT, and stream processing

Coming soon...

One platform for ETL, ELT, and stream processing

Acq.

by

IPO

Stealth

by

One platform for ETL, ELT, and stream processing

One platform for ETL, ELT, and stream processing

Software Infrastructure

Decodable

One platform for ETL, ELT, and stream processing

Acq.

by

IPO

Active

Post-quantum blockchain security

Coming soon...

Post-quantum blockchain security

Black Flag

Acq.

by

IPO

Stealth

by

Post-quantum blockchain security

Post-quantum blockchain security

IT / Cybersecurity

Tectonic

Post-quantum blockchain security

Acq.

by

IPO

Active

Mission-critical American-made hardware

Coming soon...

Mission-critical American-made hardware

Black Flag

Acq.

by

IPO

Stealth

by

Mission-critical American-made hardware

Mission-critical American-made hardware

Manufacturing / Robotics

Aerospace / Defense

Type III

Mission-critical American-made hardware

Acq.

by

IPO

Active

Gen AI for human behavior

Coming soon...

Gen AI for human behavior

Acq.

by

IPO

Stealth

by

Gen AI for human behavior

Gen AI for human behavior

AI / Compute

STEALTH CO

Gen AI for human behavior

Acq.

by

IPO

Stealth

Sustained air defense systems

Coming soon...

Sustained air defense systems

Acq.

by

IPO

Stealth

by

Sustained air defense systems

Sustained air defense systems

Aerospace / Defense

STEALTH CO

Sustained air defense systems

Acq.

by

IPO

Stealth

Next gen ship building technology

Coming soon...

Next gen ship building technology

Acq.

by

IPO

Stealth

by

Next gen ship building technology

Next gen ship building technology

Aerospace / Defense

STEALTH CO

Next gen ship building technology

Acq.

by

IPO

Stealth

Gene therapy and human capability advancements

Coming soon...

Gene therapy and human capability advancements

Acq.

by

IPO

Stealth

by

Gene therapy and human capability advancements

Gene therapy and human capability advancements

Biotech / Biosecurity

STEALTH CO

Gene therapy and human capability advancements

Acq.

by

IPO

Stealth

Post-quantum blockchain security

Coming soon...

Post-quantum blockchain security

Acq.

by

IPO

Stealth

by

Post-quantum blockchain security

Post-quantum blockchain security

IT / Cybersecurity

STEALTH CO

Post-quantum blockchain security

Acq.

by

IPO

Stealth

Robust Intelligence

Automated security and safety testing for AI models

Coming soon...

Automated security and safety testing for AI models

Acq.

by

Cisco

IPO

Stealth

by

Cisco

Robust Intelligence

Automated security and safety testing for AI models

Robust Intelligence

Automated security and safety testing for AI models

IT / Cybersecurity

AI / Compute

Robust Intelligence

Automated security and safety testing for AI models

Acq.

by

Cisco

IPO

Acquired

Software platform for engineers to build internal tools

Coming soon...

Software platform for engineers to build internal tools

Acq.

by

Airtable

IPO

Stealth

by

Airtable

Software platform for engineers to build internal tools

Software platform for engineers to build internal tools

Software Infrastructure

Airplane

Software platform for engineers to build internal tools

Acq.

by

Airtable

IPO

Acquired

Securely unlock value from sensitive data assets

Coming soon...

Securely unlock value from sensitive data assets

Acq.

by

Snowflake

IPO

Stealth

by

Snowflake

Securely unlock value from sensitive data assets

Securely unlock value from sensitive data assets

IT / Cybersecurity

LeapYear

Securely unlock value from sensitive data assets

Acq.

by

Snowflake

IPO

Acquired

The easiest way to see what API endpoints

Coming soon...

The easiest way to see what API endpoints

Acq.

by

Postman

IPO

Stealth

by

Postman

The easiest way to see what API endpoints

The easiest way to see what API endpoints

Software Infrastructure

Akita

The easiest way to see what API endpoints

Acq.

by

Postman

IPO

Acquired

Model intelligence and AI quality management solutions

Coming soon...

Model intelligence and AI quality management solutions

Acq.

by

Snowflake

IPO

Stealth

by

Snowflake

Model intelligence and AI quality management solutions

Model intelligence and AI quality management solutions

AI / Compute

Truera

Model intelligence and AI quality management solutions

Acq.

by

Snowflake

IPO

Acquired

Open-source deep learning platform

Coming soon...

Open-source deep learning platform

Acq.

by

HP

IPO

Stealth

by

HP

Open-source deep learning platform

Open-source deep learning platform

AI / Compute

Determined.ai

Open-source deep learning platform

Acq.

by

HP

IPO

Acquired

Next-gen data infrastructure for cloud efficiency

Coming soon...

Next-gen data infrastructure for cloud efficiency

Acq.

by

Microsoft

IPO

Stealth

by

Microsoft

Next-gen data infrastructure for cloud efficiency

Next-gen data infrastructure for cloud efficiency

Software Infrastructure

Bluesky

Next-gen data infrastructure for cloud efficiency

Acq.

by

Microsoft

IPO

Acquired

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