11
Total investments
1
Early stage
2
Mid stage
2
Late stage
2y
Years active
Portfolio
10 investments · sorted by recency
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Mid stage
Late stage
Investor
Sep 2026
We are a fusion power company based in Everett, WA, with the mission to build the worlds first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helions founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group and new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). Now, were turning up operations for Polaris, and working towards delivering the worlds first fusion power plant.
More than ever, its a pivotal time to join us and have the opportunity to solve real challenges to create a better energy future. You will see first-hand how we value urgency, rigor, ownership, and hard truths, knowing it will take each to do what no one has before. Joining us, you will push the boundaries of whats possible and transform humanity for the better - because the world cant wait.
Investor
Sep 2026
Welcome to SambaNova: Revolutionizing AI Capacity
At SambaNova, were empowering developers, enterprises, governments, and data centers to unlock their full AI potential. Our full-stack infrastructure, from chips to models, enables lightning-fast performance, low power consumption, and high-efficiency computing.
Our Mission
To give every developer, enterprise, government and data center absolute sovereignty over their own data, models and AI infrastructure – to future-proof the AI workloads that will power and scale tomorrow.
Our Technology
We give our customers the optionality to experience SambaNova through the cloud or on-premise.
Samba Cloud delivers the fastest inferences on the largest open source models like Llama 4 and DeepSeek. Developers can get started building in minutes with our OpenAI compatible APIs. All customers start on the developer tier and when they need more capacity can scale into our enterprise tier.
SambaStack is our on-premise offering which includes the system, the platform, and foundation models. These components combine into a powerful technology stack that delivers unparalleled performance, ease of use, accuracy, data privacy, and the ability to power every use case across the worlds largest organizations.
SambaManaged is a modular and ready-to-deploy AI cloud designed to deliver unmatched efficiency for data centers and cloud service providers. This solution allows organizations to quickly deploy advanced AI inference services—without the need for costly infrastructure upgrades or specialized expertise—in as little as 90 days.
At the heart of SambaNova innovation is the Reconfigurable Dataflow Unit (RDU). Purpose built for AI workloads, the RDU takes advantage of a dataflow architecture and a three-tiered memory design. The three tiers of memory enable the platform to run hundreds of models on a single node and to switch between them in microseconds. In 2023, SambaNova released its 4th generation RDU chip, the SN40L.
Investor
Aug 2026
Harbinger is a commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbingers best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to support the growing demand for medium-duty EVs. Leveraging a foundation of proprietary, in-house developed vehicle technologies designed specifically for commercial vehicles, Harbinger is bringing a first-of-its-kind EV platform to market, priced for zero acquisition premium.
Harbinger: Familiar Form, Revolutionary Foundation.
Investor
Aug 2026
Aalo Atomics designs and builds factory-manufactured nuclear power plants for data centers, industry, and cities.
AI infrastructure requires firm, high-density power on timelines the existing grid cannot support. The Aalo Pod delivers it as a complete modular power plant, mass-manufactured in a factory and sited directly at the load.
In July 2026, the Aalo Critical Test Reactor achieved first criticality at Idaho National Laboratory as part of the U.S. Department of Energys Reactor Pilot Program. Construction of the pilot Aalo-X full-power 10 MWe power plant is underway.
Founded in 2023 and headquartered in Austin, Texas, Aalo pairs nuclear scientists, engineers, and operators with builders from technology, defense, and manufacturing to eventually achieve 3¢/kWh nuclear electricity at scale, growing from 2 people to 200 in three years with $300M+ raised and an operational factory.
Energy without limits, for everyone.
Investor
Dec 2025
DensityAI is building a new generation of AI accelerators around a novel memory architecture. We are designing a full stack solution, from silicon to rack to software.
Investor
Nov 2025
Apptronik is a human-centered robotics company developing AI-powered robots to support humanity in every facet of life. Our humanoid robot, Apollo, is designed to collaborate thoughtfully with humans—initially in critical industries such as manufacturing and logistics, with future applications in healthcare, the home, and beyond. Apollo is the culmination of nearly a decade of development, drawing on Apptronik’s extensive work on 15 previous robots, including NASA’s Valkyrie robot. Apptronik started out of the Human Centered Robotics Lab at the University of Texas at Austin and has more than 350 employees. Learn more at apptronik.com
Investor
Nov 2025
The operating system for modern command.
With Onebrief, leaders can enable a superhuman command: one that makes brilliant decisions, scales output, and is optimally efficient. Currently live on NIPR, SIPR, and JWICS.
Learn more at onebrief.com
Investor
Mar 2025
Endlessly adaptable. Always reliable. Through the endless demands of a world in constant motion, Kodiak helps you get the job done. With purpose-built solutions to power autonomous movement in any environment, we make sure our partners save time, run clean, and keep safe.
Investor
Dec 2024
Were an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale.
Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.
Experience · 12 entries
All (12)
Investments (11)
Founder (1)
2026
Investor
Sep 2026
We are a fusion power company based in Everett, WA, with the mission to build the worlds first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.
Since Helions founding in 2013, we have raised over $1 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group and new investors SoftBank and Lightspeed to propel us forward. Our last prototype, Trenta, completed 10,000 high-power pulses and reached plasma temperatures of 100 million degrees Celsius (9 keV). Now, were turning up operations for Polaris, and working towards delivering the worlds first fusion power plant.
More than ever, its a pivotal time to join us and have the opportunity to solve real challenges to create a better energy future. You will see first-hand how we value urgency, rigor, ownership, and hard truths, knowing it will take each to do what no one has before. Joining us, you will push the boundaries of whats possible and transform humanity for the better - because the world cant wait.
Investor
Sep 2026
Welcome to SambaNova: Revolutionizing AI Capacity
At SambaNova, were empowering developers, enterprises, governments, and data centers to unlock their full AI potential. Our full-stack infrastructure, from chips to models, enables lightning-fast performance, low power consumption, and high-efficiency computing.
Our Mission
To give every developer, enterprise, government and data center absolute sovereignty over their own data, models and AI infrastructure – to future-proof the AI workloads that will power and scale tomorrow.
Our Technology
We give our customers the optionality to experience SambaNova through the cloud or on-premise.
Samba Cloud delivers the fastest inferences on the largest open source models like Llama 4 and DeepSeek. Developers can get started building in minutes with our OpenAI compatible APIs. All customers start on the developer tier and when they need more capacity can scale into our enterprise tier.
SambaStack is our on-premise offering which includes the system, the platform, and foundation models. These components combine into a powerful technology stack that delivers unparalleled performance, ease of use, accuracy, data privacy, and the ability to power every use case across the worlds largest organizations.
SambaManaged is a modular and ready-to-deploy AI cloud designed to deliver unmatched efficiency for data centers and cloud service providers. This solution allows organizations to quickly deploy advanced AI inference services—without the need for costly infrastructure upgrades or specialized expertise—in as little as 90 days.
At the heart of SambaNova innovation is the Reconfigurable Dataflow Unit (RDU). Purpose built for AI workloads, the RDU takes advantage of a dataflow architecture and a three-tiered memory design. The three tiers of memory enable the platform to run hundreds of models on a single node and to switch between them in microseconds. In 2023, SambaNova released its 4th generation RDU chip, the SN40L.
Investor
Aug 2026
Harbinger is a commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbingers best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to support the growing demand for medium-duty EVs. Leveraging a foundation of proprietary, in-house developed vehicle technologies designed specifically for commercial vehicles, Harbinger is bringing a first-of-its-kind EV platform to market, priced for zero acquisition premium.
Harbinger: Familiar Form, Revolutionary Foundation.
Investor
Aug 2026
Aalo Atomics designs and builds factory-manufactured nuclear power plants for data centers, industry, and cities.
AI infrastructure requires firm, high-density power on timelines the existing grid cannot support. The Aalo Pod delivers it as a complete modular power plant, mass-manufactured in a factory and sited directly at the load.
In July 2026, the Aalo Critical Test Reactor achieved first criticality at Idaho National Laboratory as part of the U.S. Department of Energys Reactor Pilot Program. Construction of the pilot Aalo-X full-power 10 MWe power plant is underway.
Founded in 2023 and headquartered in Austin, Texas, Aalo pairs nuclear scientists, engineers, and operators with builders from technology, defense, and manufacturing to eventually achieve 3¢/kWh nuclear electricity at scale, growing from 2 people to 200 in three years with $300M+ raised and an operational factory.
Energy without limits, for everyone.
Show all 12 entries ↓
Investment activity
2024–2026 · 11 investments
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