# Protean Energy Advisors

> Protean Energy Advisors is a VC fund in Mars backing Manufacturing and Transportation. See 2 investments, check sizes, portfolio. Updated Sep 2026.

- Type: VC Fund
- Location: Mars, United States
- Total investments: 2
- Last investment: Apr 2018
- Lead investor: 0%
- Last updated: Sep 2026
- LinkedIn: https://www.linkedin.com/company/protean-advisors
- Website: https://x.com/proteanadvisors

Protean Energy Advisors is an energy consultation company.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Manufacturing | 1 | 50% |
| Transportation | 1 | 50% |
| Renewable Energy | 1 | 50% |
| Waste Management | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Optimus Technologies | Optimus Technologies is a clean energy technology company based in Pittsburgh, Pennsylvania. Optimus manufactures the Vector System, an advanced fuel system technology that enables diesel engines to operate on 100% biodiesel. Emissions reductions for heavy-duty fleet applications are challenging or impossible to achieve in a cost-effective mannerthrough other means. The Vector System integrates into existing operations to facilitate a seamless transition to low-carbon fuels. | $175K | Convertible Note | Apr 24, 2018 |  |
| Optimus Technologies | Optimus Technologies is a clean energy technology company based in Pittsburgh, Pennsylvania. Optimus manufactures the Vector System, an advanced fuel system technology that enables diesel engines to operate on 100% biodiesel. Emissions reductions for heavy-duty fleet applications are challenging or impossible to achieve in a cost-effective mannerthrough other means. The Vector System integrates into existing operations to facilitate a seamless transition to low-carbon fuels. | $162.5K | Convertible Note | Feb 28, 2018 |  |

2 of 2 investments shown.

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## FAQ

### What does Protean Energy Advisors invest in?

Protean Energy Advisors invests primarily in Manufacturing, Transportation and Renewable Energy startups, most often at Convertible Note stage. Most of the 2 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 Protean Energy Advisors last invest?

The most recent investment recorded for Protean Energy Advisors closed in Apr 2018. Shizune tracks 2 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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