Investors / Pax
Pax
Venture capital
Pax is a venture capital firm that invests in founders building technologies for foundational industries. Its portfolio spans defense, energy, space, manufacturing, and infrastructure companies.
Invests inAI & Machine LearningIndustrial & Manufacturing
In its own wordsdefenseenergyspacemanufacturinginfrastructurenuclear
Your fit with Pax
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsPax lists 26 checked portfolio companies on its own site. Its largest themes are AI & Machine Learning (38%), Industrial & Manufacturing (24%) and Cybersecurity (11%). 100% of its companies are based in United States. It invests most often alongside Andreessen Horowitz, FDVC and General Catalyst.
No funding round on record names Pax yet, so the figures come from its portfolio page.
Round figures show recent activity, not Pax's whole history. Rounds on record name 0 companies; its own site lists 26. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 38% | 18% |
| Industrial & Manufacturing | 24% | 7% |
| Cybersecurity | 11% | 4% |
| Education | 9% | 7% |
| Space & Defense | 4% | 3% |
| Consumer | 2% | 3% |
| Mobility & Logistics | 2% | 1% |
| Healthcare & Biotech | 2% | 15% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Andreessen Horowitz | 13 |
| FDVC | 6 |
| General Catalyst | 5 |
| IQT | 5 |
| XYZ | 5 |
| Critical Frontier | 4 |
| Crosscut | 4 |
| Founders Fund | 4 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 62th | 26 companies |
| Recent activity | 46th | 0 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 70th | 38% in its largest sector |
| Reach | 20th | 1 country |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers2596%
- No longer answers00%
- Points to another company14%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Andreessen Horowitz
Compare Pax head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Portfolio
26 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Aalo Atomics builds mass-manufactured nuclear power plants designed to power data centers and other applications | EducationIndustrial & Manufacturing | Portfolio page | ||
AI & Machine LearningAI & Machine Learning | Portfolio page | |||
| The American Housing Corporation is a vertically integrated real estate developer and housing manufacturer that builds starter homes in America's most dynamic cities and neighborhoods using industrial manufacturing | Real Estate & Construction | Portfolio page | ||
| Arbor develops and supplies power systems, including next-generation turbines, to deliver clean and reliable energy | EducationIndustrial & Manufacturing | Portfolio page | ||
| Astro Mechanica designs and builds engines, airframes, and flight systems for the aerospace industry. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Atalanta is a mathematical AI company that brings speed and rigor to the design, implementation, and verification of complex systems. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Cape provides private cell phone service with a focus on security and minimal data collection | ConsumerCybersecurity | Portfolio page | ||
| The company develops and provides modular power systems for military and operational use. | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| CX2 delivers spectrum dominance to the battlefield by providing AI-enabled hardware and software that see, disrupt, and defend the electromagnetic domain in contested environments. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Portfolio page | ||||
| The company is creating infrastructure for the space internet | Space & Defense | Portfolio page | ||
| Galadyne is a defense company that redefines missile architecture with scalable liquid propulsion and full-stack integration. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Lumaril connects to existing control systems and continuously optimizes production for higher throughput, better yield, and more reliable operations. | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| Matter manufactures robotics and complex electromechanical systems | Industrial & Manufacturing | Portfolio page | ||
| Mariana Minerals builds and operates autonomous mines and refineries, supplying minerals critical to modern energy, AI, and defense technologies. | Mobility & LogisticsIndustrial & Manufacturing | Portfolio page | ||
| Method Security builds autonomous cyber mission systems for the U.S. Government and critical enterprises. | CybersecurityAI & Machine Learning | Portfolio page | ||
| Nominal provides a unified software suite to test and operate hardware | Industrial & ManufacturingEnterprise Software | Portfolio page | ||
| Northwood Space builds and delivers ground infrastructure for space communications | Space & DefenseHealthcare & Biotech | Portfolio page | ||
| The company is building a platform for the commercial maritime industry to connect systems and surface insights. | Industrial & Manufacturing | Portfolio page | ||
| Plix provides AI body cameras to power safer frontline work in various industries | AI & Machine LearningCybersecurity | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- pax.vc
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Companies checked
- 26
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get Pax's profile as data
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