# Cambium Capital Partners

> Cambium Capital Partners is a VC fund backing Electronics and Manufacturing. See 26 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Seattle, United States
- Total investments: 26
- Last investment: Jun 2026
- Lead investor: 38%
- Last updated: Aug 2026
- Website: https://cambium.vc/

Cambium Capital Partners is a venture capital firm.

## Contacts

5 contacts available for Cambium Capital Partners. Shizune tracks 3 team members at Cambium Capital Partners. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/cambium-capital-partners?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Electronics | 8 | 31% |
| Manufacturing | 7 | 27% |
| Semiconductor | 7 | 27% |
| Artificial Intelligence | 5 | 19% |
| Software | 4 | 15% |

36 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 7 | 27% |
| Series A | 7 | 27% |
| Series B | 3 | 12% |
| Funding Round | 2 | 8% |
| Series C | 1 | 4% |

8 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 17 | 65% |
| Germany | 1 | 4% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Landon Downs | Managing Partner | 6 | https://shizune.co/investors/profile/landon-downs |
| David Byrd | General Partner | 6 | https://shizune.co/investors/profile/david-byrd |
| David Moehring | General Partner | 0 | https://shizune.co/investors/profile/david-moehring |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Opal Security | Opal Security is a modern, data-centric identity security platform. Opal Security helps organizations reduce access sprawl, manage identity attack surfaces, and enforce policies that are secure by default. Opal Security is based in San Francisco and New York. For more information, please visit www.opal.dev or reach us at hello@opal.dev. | $23M | Venture - Series Unknown | Jun 04, 2026 |  |
| NeoCognition | NeoCognition is an AI research lab specializing in self-learning AI agents that achieve expert-level intelligence through autonomous adaptation to specific domains. company develops generalist agents that continuously learn workflows, structures, and constraints in real-world environments like software and websites. This enables them to specializeon the job, becoming faster, more cost-effective, reliable, and safer for high-stakes applications—addressing reliability issues in current AI systems that succeed only about 50% of the time. | $40M | Seed | Apr 21, 2026 |  |
| EPIC Microsystems | Epic Microsystems develops advanced technology that boosts energy efficiency and computing performance in data centers. | $21M | Series A | Mar 25, 2026 |  |
| SambaNova | SambaNova develops artificial intelligence computing infrastructure that combines AI processors, hardware systems, and software for deploying and managing AI inference workloads. Its platform supports cloud, on-premises, and hybrid deployments, enabling organizations to run and manage large language models and AI applications using compatible APIsand orchestration tools. | $350M | Series E | Feb 09, 2026 |  |
| AheadComputing | AheadComputing is a company that specializes in designing, licensing, and providing support for high-performance microprocessor cores and related technologies. | $30M | Seed | Jan 21, 2026 |  |
| Falcomm | We are a fabless integrated circuit design startup on a mission to provide the most energy efficient power amplifier and front-end module products for hardware manufacturers in the 5G mmWave market. One of the biggest challenges for 5G mm-Wave communication is transmitter power and efficiency. In most transceiver designs, power amplifiers (PAs)dominate the overall transmitter efficiency and thermal performance. It is extremely difficult to transmit a signal efficiently over the air at mm-Wave frequencies. To solve this, we developed an ultra-efficient silicon-based power amplifier (PA) topology for 5G mmWave applications called the Dual-Drive PA. For decades, the maximum theoretical efficiency of PAs has been fixed at 78.5%, with most PAs topping out at 40% efficiency. Until now, it was thought to be theoretically impossible to increase the efficiency beyond this figure of 78.5%. Our new, patented technology increases the theoretical maximum efficiency limits of PAs beyond 78.5%; therefore, no other PA can be as efficient as our Dual-Drive PA. Our first prototype was implemented using GlobalFoundries’ 45nm CMOS SOI process and was fully tested and verified. Based on our measurements, our first prototype achieves drain efficiencies that are 20% higher than any state-of-the-art power amplifier in the mmWave frequency range. In addition, our technology was fully verified using the new 5G NR modulation testing standards achieving Gb/s data rates at incredible high efficiency levels. Since PAs dominate the overall transmitter efficiency and thermal performance, our PA technology can be employed by base station, cellphone, and radar manufacturers (to name a few) and decrease their thermal management cost and ease their overall system requirements. | $5.8M | Seed | Oct 06, 2025 |  |
| Snowcap Compute | Snowcap Compute develops advanced artificial intelligence computing chips that leverage superconducting technology for faster processing and greater energy efficiency. | $23M | Seed | Jun 23, 2025 |  |
| Exostellar | Exostellar provides a platform that enables users to enhance cloud computing for greater cost efficiency by utilising its exclusive licence to patent-pending technologies created at Cornell University and combining artificial intelligence and machine learning. | $10.8M | Series A | Feb 11, 2025 |  |
| EtherWhere | Etherwhere is a multi-GNSS IoT chip provider with low power. The EW6180 is an analog front-end silicon chip with a digital baseband. For performance, EW6180 can function in stand-alone mode and has eCloud mode that enables device designers to configure parameters based on operating use cases. This chip consumes  power and is adaptive to theparticular case of usage. | $16.3M | Series B | Jul 25, 2024 |  |
| Black Semiconductor | Black Semiconductor manufacture microchips with integrated electronic-photonic circuits using graphene technology. | $27.8M | Series A | Jun 12, 2024 |  |

10 of 26 investments shown.

## Co-investors
- [Intel Capital](https://shizune.co/investors/profile/intel-capital) — VC Fund, 5 deals together
- [Lockheed Martin Ventures](https://shizune.co/investors/profile/lockheed-martin-ventures) — VC Fund, 5 deals together
- [Vsquared Ventures](https://shizune.co/investors/profile/vsquared-ventures) — VC Fund, 4 deals together
- [Walden Catalyst](https://shizune.co/investors/profile/walden-catalyst) — VC Fund, 4 deals together
- [Celesta Capital](https://shizune.co/investors/profile/celesta-capital) — VC Fund, 3 deals together
- [Project A Ventures](https://shizune.co/investors/profile/project-a-ventures) — VC Fund, 3 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
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Cambium Capital Partners invest in?

Cambium Capital Partners invests primarily in Electronics, Manufacturing and Semiconductor startups, most often at Seed and Series A stage. Most of the 26 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 Cambium Capital Partners?

Public channels for Cambium Capital Partners include the website linked on this profile. 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 Cambium Capital Partners?

The team at Cambium Capital Partners includes Landon Downs (Managing Partner), David Byrd (General Partner) and David Moehring (General Partner). 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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