# RTX Ventures

> RTX Ventures is a VC fund in Arlington backing Manufacturing and Aerospace. See 37 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Arlington, United States
- Total investments: 37
- Last investment: May 2026
- Lead investor: 24%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/rtx
- Website: https://www.rtx.com/our-company/ventures
- Facebook: https://www.facebook.com/rtxcorporation

RTX Ventures is a venture capital arm of Raytheon Technologies that invests in companies accelerating the development of transformational aerospace and defense technologies. It enables partners to employ resources and mentorship to promote growth and fuel innovation.

## Contacts

5 contacts available for RTX Ventures. Shizune tracks 2 team members at RTX Ventures. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/rtx-ventures?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Manufacturing | 10 | 27% |
| Aerospace | 8 | 22% |
| Software | 5 | 14% |
| Artificial Intelligence | 5 | 14% |
| Machine Learning | 4 | 11% |

45 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 7 | 19% |
| Series B | 6 | 16% |
| Seed | 5 | 14% |
| Series C | 4 | 11% |
| Funding Round | 3 | 8% |

7 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 21 | 57% |
| Switzerland | 1 | 3% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Christopher Calio | Chief Executive Officer; President and Chief Operating Officer | 0 | https://shizune.co/investors/profile/christopher-t-calio |
| Daniel Ateya | President & Managing Director | 19 | https://shizune.co/investors/profile/daniel-ateya-72dd |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Observable Space | OurSky is a developer platform for space applications that provides observational data and analysis of objects and activities in space. | $90M | Series A | May 28, 2026 |  |
| Darkhive | Autonomy for Everyone | $30M | Series B | May 07, 2026 |  |
| Darkhive Inc. | Darkhive Inc. develops autonomous uncrewed aircraft systems, tactical drones, and defense software for military and public safety users. The company builds hardware and software that integrate into modern battlefields, emphasizing open architectures and documented interfaces. Its offerings include short- and long-range reconnaissance drones, fleetand edge device management platforms, and autonomy software integrated with Team Awareness Kit systems. Darkhive also provides manufacturing and supply chain services for mass-produceable, software-defined defense systems. Its products support situational awareness, threat assessment, and mission planning for tactical and emergency response teams. | $30M | Series B | May 07, 2026 |  |
| Reliable Robotics | Reliable Robotics provides advanced automation systems for aviation companies. The company was founded by Juerg Frefel and Robert Rose in 2017 and is headquartered in Mountain View, California, United States. | $160M | Series D | Apr 21, 2026 |  |
| Hermeus | Hermeus is an aerospace and defense company that develops hypersonic aircraft capable of reaching speeds around Mach 5. The company’s core mission is to drastically reduce global travel times by creating next-generation aircraft that can fly significantly faster than traditional commercial jets. Its flagship programs include the Quarterhorse seriesof high-speed test aircraft and the development of the Chimera engine, a turbine-based combined cycle propulsion system designed for hypersonic flight. Hermeus follows a rapid, iterative development approach, building and testing multiple prototypes to accelerate innovation and reduce engineering timelines. The company collaborates with organizations such as the U.S. Air Force and NASA, positioning its technology for both commercial aviation and defense applications. | $200M | Series C | Apr 07, 2026 |  |
| Code Metal | AI-Powered development at the Edge | $125M | Series B | Feb 19, 2026 |  |
| Efficient Computer | Efficient is a computer architecture and software stack company that creates a general-purpose processor for embedded computing applications. The company's patented technology uses 100x less energy than state-of-the-art commercially available processors and is programmable using standard high-level programming languages like C and C++, as wellas the most popular AI/ML frameworks. This class-defining efficiency and flexibility makes possible a huge variety of high-value use cases ranging from DSP, to embedded analytics, to AI/ML, and many more. The Efficient architecture is inherently scalable from IoT to the edge: decade-scale, battery-powered edge computation & ML and mobile devices with 10-100x longer battery life. The unprecedented energy efficiency and flexibility provided by Efficient's architecture and software ecosystem solves the energy problem that is the main impediment to a broad range of important computing applications. | $60M | Series A | Feb 18, 2026 |  |
| JetZero | JetZero is an aerospace company that designs and manufactures zero-emissions jet aircraft.Airlines have long sought more fuel-efficient aircraft and now that climate change is a worldwide problem, planes with minimal carbon emissions, if not zero, are unavoidable. Their objective is to hasten such shift. JetZero is actively collaborating withNASA on sustainable aircraft ideas that will soon make zero-emission flight a reality.JetZero is headquartered in Long Beach, California and was founded in 2020. | $175M | Series B | Jan 13, 2026 |  |
| Hadrian | Hadrian is a precision manufacturing company that manufactures precision components to serve aerospace and defense clients. It builds autonomous, software-defined precision component factories that help its customers make rockets, satellites, jets, and eVTOLs. | $131.3M | Series C | Dec 30, 2025 |  |
| Code Metal | AI-Powered development at the Edge | $36.5M | Series A | Nov 12, 2025 |  |

10 of 37 investments shown.

## Co-investors
- [Founders Fund](https://shizune.co/investors/profile/founders-fund) — VC Fund, 8 deals together
- [Lux Capital](https://shizune.co/investors/profile/lux-capital) — VC Fund, 8 deals together
- [Lockheed Martin Ventures](https://shizune.co/investors/profile/lockheed-martin-ventures) — VC Fund, 6 deals together
- [Overmatch Ventures](https://shizune.co/investors/profile/overmatch-ventures) — VC Fund, 5 deals together
- [Accel](https://shizune.co/investors/profile/accel) — VC Fund, 4 deals together
- [Canaan Partners](https://shizune.co/investors/profile/canaan-partners) — VC Fund, 4 deals together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does RTX Ventures invest in?

RTX Ventures invests primarily in Manufacturing, Aerospace and Software startups, most often at Series A and Series B stage. Most of the 37 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact RTX Ventures?

Public channels for RTX Ventures include LinkedIn, the website linked on this profile and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at RTX Ventures?

The team at RTX Ventures includes Christopher Calio (Chief Executive Officer; President and Chief Operating Officer) and Daniel Ateya (President & Managing Director). The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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