# Fathom Fund

> Fathom Fund is a VC fund in Houston backing Semiconductor and Chemical. See 8 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Houston, United States
- Total investments: 8
- Last investment: May 2026
- Lead investor: 38%
- Last fund: Feb 2024
- Last updated: Aug 2026
- Website: https://ff.vc/

Fathom Fund is a VC fund in Houston focused on Semiconductor and Chemical. Fathom Fund invests in deep-tech startups.

## Contacts

5 contacts available for Fathom Fund. Shizune tracks 1 team members at Fathom Fund. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/fathom-fund?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Semiconductor | 3 | 38% |
| Chemical | 1 | 13% |
| Robotics | 1 | 13% |
| CleanTech | 1 | 13% |
| Simulation | 1 | 13% |

11 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 38% |
| Series A | 3 | 38% |
| Pre-Seed | 1 | 13% |
| Funding Round | 1 | 13% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 5 | 63% |
| Australia | 1 | 13% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Paul Sheng | Co-founder and Managing Partner | 2 | https://shizune.co/investors/profile/paul-sheng |

## 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 |  |
| NovoLINC | NovoLINC is a pioneering startup that provides thermal interface solutions. It develops a distinctive system of nanostructured materials and a proprietary manufacturing process with the objective of transforming thermal management. | $10.2M | Seed | Dec 18, 2025 |  |
| Fex Energy | FeX Energy is a pre-commercial startup focused on developing renewable energy storage solutions. | $3.5M | Seed | Sep 15, 2025 |  |
| Nullspace Inc. | Nullspace develops advanced electromagnetic simulation software redefining what is possible for next-generation RF systems and quantum computing. Its full-fidelity, high-speed simulation software is purpose built for mission-critical engineering. Built on over a decade of DoD-validated technology, Nullspace solvers deliver breakthrough performance- enabling engineers to model larger, more complex systems than ever before, without sacrificing accuracy. Customers span industries from aerospace, defense, 5G/6G, spectrum management, and top emerging quantum computing companies. | $2.5M | Seed | Aug 18, 2025 |  |
| Persona AI | Persona AI is a robotics company that provides robotic solutions. | $27M | Pre-Seed | May 07, 2025 |  |
| Resource Chemical | Resource Chemical develops CO2 into high-performance plastics that do not pollute the environment. The company's headquarters are in Berkeley, California. | $15M |  | Mar 06, 2025 |  |
| ElectraLith | ElectraLith develops direct lithium extraction and refining technology designed for efficient and sustainable lithium production. | $17.1M | Series A | Jan 16, 2025 |  |
| Xscape Photonics | Xscape Photonics provides photonic chips for high-speed connections in high-performance computing systems and data centers. The company uses photonics to realize scalable, high-bandwidth, energy-sustainable, and cost-effective solutions that enable the next generation of AI, ML, and simulation hardware. | $44M | Series A | Oct 15, 2024 |  |

8 of 8 investments shown.

## Co-investors
- [Chevron Technology Ventures](https://shizune.co/investors/profile/chevron-technology-ventures) — VC Fund, 2 deals together
- [Altair](https://shizune.co/investors/profile/altair-engineering) — VC Fund, 1 deal together
- [Antares Ventures](https://shizune.co/investors/profile/antares-ventures) — VC Fund, 1 deal together
- [BRV Capital Management](https://shizune.co/investors/profile/brv-capital-management) — VC Fund, 1 deal together
- [Carnegie Mellon University](https://shizune.co/investors/profile/carnegie-mellon-university) — VC Fund, 1 deal together
- [Cisco Investments](https://shizune.co/investors/profile/cisco-investments) — VC Fund, 1 deal together

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## FAQ

### What does Fathom Fund invest in?

Fathom Fund invests primarily in Semiconductor, Chemical and Robotics startups, most often at Seed and Series A stage. Most of the 8 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 Fathom Fund?

Public channels for Fathom Fund 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 Fathom Fund?

The team at Fathom Fund includes Paul Sheng (Co-founder and Managing 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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