# CS Venture Opportunities Fund

> CS Venture Opportunities Fund is a VC fund in Darien backing Medical, Fuel and Energy. See 6 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Darien, United States
- Total investments: 6
- Last investment: May 2025
- Lead investor: 17%
- Last updated: Aug 2026

CS Venture Opportunities Fund is a VC fund in Darien focused on Medical and Fuel. CS Venture Opportunities Fund is venture capital fund. It invests in industries including advanced medical and industrial technology, life sciences, and software.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Medical | 2 | 33% |
| Fuel | 1 | 17% |
| Energy | 1 | 17% |
| Aerospace | 1 | 17% |
| Lifestyle | 1 | 17% |

9 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 50% |
| Series A | 1 | 17% |
| Venture - Series Unknown | 1 | 17% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Vivodyne | Vivodyne develops lifelike human organs for drug testing and research purposes. The company utilizes robotic systems and artificial intelligence to create realistic human tissues that simulate various organ functions. This innovative approach allows for efficient testing of pharmaceuticals, aiming to replace traditional animal testing methods. Byproducing over 100,000 human tissues in a short timeframe, Vivodyne enhances the predictive accuracy of drug responses in humans. The organization is committed to improving the preclinical drug testing process, providing valuable insights that can lead to more effective therapies. Through its advanced technology, Vivodyne contributes to the evolution of biomedical research and development. | $40M | Series A | May 29, 2025 |  |
| Vivodyne | Vivodyne develops lifelike human organs for drug testing and research purposes. The company utilizes robotic systems and artificial intelligence to create realistic human tissues that simulate various organ functions. This innovative approach allows for efficient testing of pharmaceuticals, aiming to replace traditional animal testing methods. Byproducing over 100,000 human tissues in a short timeframe, Vivodyne enhances the predictive accuracy of drug responses in humans. The organization is committed to improving the preclinical drug testing process, providing valuable insights that can lead to more effective therapies. Through its advanced technology, Vivodyne contributes to the evolution of biomedical research and development. | $38M | Seed | Nov 22, 2023 |  |
| Flashpoint Therapeutics | Flashpoint Therapeutics introduces a new way to building cancer immunotherapies that turn therapeutic components from ineffective to curative. | $10M | Seed | Oct 25, 2023 |  |
| Flashpoint Therapeutics | Flashpoint Therapeutics introduces a new way to building cancer immunotherapies that turn therapeutic components from ineffective to curative. | $10M | Seed | Oct 25, 2023 |  |
| Specter Aerospace | Improving combustion for energy, aerospace and national security | $9.5M | Venture - Series Unknown | Jun 13, 2023 |  |
| PteroDynamics | PteroDynamics' mission is to improve lives by democratizing transportation using sustainable autonomous vertical takeoff and landing (VTOL) aircraft that reduce humankind's impact on the planet.Advanced Air Mobility promises a better way to move people and things from anywhere to anywhere, but this requires a new breed of moreefficient VTOL aircraft. Since 2017, PteroDynamics has been focused on solving this problem. The Company’s revolutionary patented Transwing aircraft design with wings that fold during flight has significant advantages over all other VTOL designs. | $7.5M | Seed | Feb 28, 2023 |  |

6 of 6 investments shown.

## Co-investors
- [Kairos Ventures](https://shizune.co/investors/profile/kairos-venture-investments-llc) — VC Fund, 4 deals together
- [Beta Lab](https://shizune.co/investors/profile/beta-lab) — VC Fund, 2 deals together
- [Bison Ventures](https://shizune.co/investors/profile/bison-ventures) — VC Fund, 2 deals together
- [Khosla Ventures](https://shizune.co/investors/profile/khosla-ventures) — VC Fund, 2 deals together
- [MBX Capital](https://shizune.co/investors/profile/mbx-capital) — VC Fund, 2 deals together
- [Fortius Ventures](https://shizune.co/investors/profile/fortius-ventures) — VC Fund, 1 deal 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 CS Venture Opportunities Fund invest in?

CS Venture Opportunities Fund invests primarily in Medical, Fuel and Energy startups, most often at Seed and Series A stage. Most of the 6 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did CS Venture Opportunities Fund last invest?

The most recent investment recorded for CS Venture Opportunities Fund closed in May 2025. Shizune tracks 6 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### 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.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co