We build for the flourishing of America.
Pennington Capital builds and invests at the intersection of software and steel. We start companies, run experiments, and back founders — in energy, industry, and the systems that make them intelligent.
εὐδαιμονία — eudaimonia
Technology in service of human flourishing
The oldest idea in Western thought is that the good life is not given. It is built. Every generation inherits a civilization and chooses whether to maintain it, squander it, or raise it higher. Ours has the raw materials to raise it — energy without ceiling, intelligence at scale, an industrial base worth rebuilding. What follows is how we put them to work.
Energy is the constraint on everything else.
Every ambition in the physical world — desalination, fertilizer, steel, compute — is an energy bill. A civilization that wants more of everything needs a source with no ceiling. Fusion is that source, and it is closer than the consensus believes.
We founded Vanderbilt Fusion to prove that a small team, working from first principles, can build a fusion device. HELIOS Mk. 1, an electrostatic confinement reactor, produced plasma under fusion conditions in Spring 2025. Deuterium fusion runs follow in Fall 2026.
Abundance is a logistics problem.
America already produces more than enough. Over $163 billion of usable goods are destroyed every year — not for lack of need, but because destruction is cheaper and simpler than donation. The gap between plenty and poverty is not production. It is routing.
We built Simpli to close it: the operating system for American giving, moving excess inventory from enterprise warehouses to the charities that need it for what it would cost to throw it away.
Capital is presence.
Where American investment shows up, American interests hold. For a generation, in much of the world, it hasn't shown up — and a vacuum is always filled by someone. The frontier is not a risk to be priced. It is a position to be taken.
We are partners in 90North, the world's first vertical AI advisory and investment firm, operating where most capital won't: frontier markets, post-conflict reconstruction, critical minerals, and strategic infrastructure.
- Frontier markets
- Critical minerals
- Infrastructure
Orbit is the next platform.
Every platform in history opened the moment the cost of reaching it collapsed. Reusable launch has cut the price of a kilogram to orbit by an order of magnitude in a decade, and everything that follows — connectivity, observation, manufacturing, eventually power — is downstream of that one number.
We invest across the aerospace stack, from seed to pre-IPO: launch, satellites, and the infrastructure that turns a falling launch cost into an economy.
- Aerospace
- Launch
- Satellite
Built from scratch & backed at the frontier
Two ways we work: we start companies when we see the opening, and we back the founders who saw it first.
I. What we build
Companies started hereSimpli
BuildingNew York, NY · Ontology · 2022The operating system for American giving. Simpli replaces destruction with donation at enterprise scale — a physical ontology that streamlines the movement of $163B+ of excess inventory per year to charities in need.
$70M+Value delivered4M+People helped3.8M+Lbs divertedWave
Acquired · September 2026Nashville, TN · Ontology · 2022Identity ticketing platform and data layer for nightlife. Scaled from ideation to over 10,000 tickets sold, piloting with category leaders like Barstool Sports and Virgin Hotels — successfully proving the technical validity of identity ticketing and go-to-market potential.
II. What we back
Positions, partnerships, and the lab we founded90North
PartnerFrontier Markets · Vertical AI Advisory · 2025The world's first vertical AI advisory and investment firm. 90North operates where most capital won't — frontier markets, post-conflict reconstruction, critical minerals supply chains, and strategic infrastructure — sourcing, structuring, and closing transactions that move global supply, security, and reconstruction priorities forward.
- Frontier Markets
- Critical Minerals
- Infrastructure
SpaceX
GrowthStarbase, TX · Aerospace · March 2025Reusable launch vehicles, satellite broadband (Starlink), and next-generation space transportation.
- Aerospace
- Launch
- Satellite
Vanderbilt Fusion
AdvisoryNashville, TN · Nuclear & Energy · 2022Founded by Tommy Pennington while an undergraduate at Vanderbilt, Vanderbilt Fusion became the first fully undergraduate-led fusion research team in the United States. HELIOS Mk. 1 achieved plasma under fusion operating conditions in Spring 2025, with deuterium fusion runs planned for Fall 2026.
- Fusion
- Nuclear
- Research
Dispatches from the frontier
Our weekly pulse on the American investor and operator ecosystem — hard tech, industrial capacity, AI, energy, and the people building what comes next.
Working on something that matters?
If you're building at the frontier of energy, industry, or intelligent systems — or want to work on one of ours — send us a message.
Building something that fits the thesis? Send the pitch.