# R-Cubed Capital Partners

> R-Cubed Capital Partners is a VC fund backing Health Care, Medical and Biotechnology. See 4 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Total investments: 4
- Last investment: Sep 2022
- Lead investor: 0%
- Last updated: Aug 2026

R-Cubed Capital Partners is an investment firm.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 2 | 50% |
| Medical | 1 | 25% |
| Biotechnology | 1 | 25% |
| Renewable Energy | 1 | 25% |
| Environmental Consulting | 1 | 25% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 2 | 50% |
| Seed | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| ZwitterCo | ZwitterCo provides revolutionary membrane solutions for the treatment of highly-impaired wastewater. | $33M | Series A | Sep 15, 2022 |  |
| ZwitterCo | ZwitterCo provides revolutionary membrane solutions for the treatment of highly-impaired wastewater. | $5.9M | Seed | Mar 18, 2021 |  |
| ZwitterCo | ZwitterCo provides revolutionary membrane solutions for the treatment of highly-impaired wastewater. | $5.9M | Seed | Mar 18, 2021 |  |
| Naveris | Naveris is a biotechnology company that provides highly sensitive blood tests for cancers to enable early diagnosis in the general asymptomatic population, real-time monitoring of response in patients undergoing treatment, and detection of cancer recurrence in patients in remission. The company's 3D biomimetic technology replicates themorphological, signaling, and cell lineage complexity of human tissues and tumors ex vivo. By empowering investigators to efficiently establish patient tumors ex vivo, its technology enables innovative designs for oncology clinical trials and precision medicine that seek to match the right therapies with the right patients.Naveris was founded in 2017 and is headquartered in Waltham, Massachusetts. |  | Series A | Dec 15, 2020 |  |

4 of 4 investments shown.

## Co-investors
- [Burnt Island Ventures](https://shizune.co/investors/profile/burnt-island-ventures) — VC Fund, 3 deals together
- [MANN+HUMMEL](https://shizune.co/investors/profile/mann-hummel) — VC Fund, 3 deals together
- [Bantam Group](https://shizune.co/investors/profile/bantam-group) — VC Fund, 2 deals together
- [Genoa Ventures](https://shizune.co/investors/profile/5-prime-ventures) — VC Fund, 1 deal together
- [DCVC](https://shizune.co/investors/profile/data-collective) — VC Fund, 1 deal together
- Gurnet Point Capital — 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
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does R-Cubed Capital Partners invest in?

R-Cubed Capital Partners invests primarily in Health Care, Medical and Biotechnology startups, most often at Series A and Seed stage. Most of the 4 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 R-Cubed Capital Partners last invest?

The most recent investment recorded for R-Cubed Capital Partners closed in Sep 2022. Shizune tracks 4 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.

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