About Us

Harpoon is a seed focused venture capital firm. Our mission is to ensure American technological dominance for future generations.


We invest in audacious founders building mission-critical capabilities across AI, deep tech, software infrastructure, and cybersecurity.

Portfolio

Solugen

Reimagining the chemicals industry

Sema4.ai

Automation-as-code AI agent framework

Astranis

Dedicated connectivity anywhere

Semgrep

Engineering-centric code security

Merlin Labs

Propelling the future of fully autonomous flight

Lumos

SaaS management and identity governance

Vantage

Track and manage cloud costs

WireScreen

Global business intelligence platform

Kodiak

Fully autonomous driver for any fleet

CyCognito

Actionable cybersecurity analysis and insights

Genesis Therapeutics

AI-driven drug discovery

Graphiant

Edge network enterprise connectivity

Glyphic Biotechnologies

Next generation protein sequencing

Tarsal

Highly scalable ETL data pipeline

Aalo Atomics

Clean nuclear energy for everyone

Firestorm Labs

Radically affordable, mission-adaptable UAS

JITX

Software-defined circuit board automation

Deepset

Accelerating development of applications with LLMs

Encord

Complete data development for AI

Ursa Major

Critical mission advanced propulsion systems

Oso

Authorization-as-a-service to manage application control

n8n

Secure and AI-native workflow automation

Netography

Joint security for the modern network

Material Security

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

Robust Intelligence

Automated security and safety testing for AI models

Netskope

Redefining cloud, data, and network security

Bluesky

Next-gen data infrastructure for cloud efficiency

Buoyant

Modern, cloud-native network security and reliability

Monad

Organized pipeline for the modern security data stack

Truffle Security

Resolving exposed secrets across the tech stack

Decodable

One platform for ETL, ELT, and stream processing

Testimonials

“Larsen is a guy who knows how to roll up his sleeves. He and Harpoon have proven to be one of the most impactful investors on our cap table, going above and beyond on multiple occasions. Among other things, they introduced us to government customers and helped lay the groundwork for what would become our government business. It was a huge value add.”

John Gedmark

Co-Founder and CEO of Astranis

Astranis

“Harpoon has been instrumental in Kodiak’s journey, from supporting us on our first SBIR contract to advising us on our $50 million project with the U.S. Army. During that time, I’ve had the pleasure of getting to know the Harpoon team, and can say with confidence that their commitment and depth of expertise are unmatched.”

Don Burnette

Founder and CEO of Kodiak

Kodiak

“We've been fortunate to partner with Harpoon early in our journey. Today, it seems obvious to many that AI Risk is an important mission and a big market, but that wasn't the case up until recently. Larsen and team saw this before almost anyone else did. Harpoon has been instrumental to our success, from vision, through team building to enterprise and Federal sales."

Yaron Singer

Co-founder and CEO of Robust Intelligence

Robust Intelligence

“Lots of VCs will tell you, 'We have an inside line to the government.' But for companies like Merlin, whose approach provides near-term value to the DoD as well as long-term applicability, we truly benefit from those claims being truthful and actionable. At every turn Harpoon actually backs up what they say with intros that move our work and company forward.”

Matt George

Founder and CEO of Merlin Labs

Merlin

Our Team

Harpoon embodies an unrelenting work ethic, discipline, focus, risk management, and determination. This mentality is our core driver and what sets us apart from other firms.

Larsen Jensen

General Partner

Jeff Torrance

Partner

Riley Loftus

Investor

Matias Zorrilla

Investor

Jacob Windle

Investor

Tiffany Lesko

Special Assistant

Mark Holden

Marketing and Communications