# Transformative Energy and Materials Capital (TEM Capital)

> Transformative Energy and Materials Capital (TEM Capital) is a VC fund backing Energy. See 3 investments, round sizes, portfolio and contact details. Updated…

- Type: VC Fund
- Location: Boston, United States
- Total investments: 3
- Last investment: Jul 2022
- Lead investor: 67%
- Fund size: $100M
- Last fund: Aug 2010
- Last updated: Aug 2026
- Website: http://www.temcapital.com

Transformative Energy and Materials Capital (TEM Capital) is a VC fund in Boston focused on Energy and Construction. Transformative Energy and Materials Capital, LLC (TEM Capital) is a fund manager for the Transformative Energy & Materials Fund I (“TEM” or “TEM Fund”). TEM invests in mid to later stage companies where there is a clear view on how to achieve revenue expansion and profitability. TEM Capital's management team combines scientific,operational and financial experience and takes an active role in the portfolio, aiming to bring not only capital but most importantly effective growth strategies.

## Contacts

5 contacts available for Transformative Energy and Materials Capital (TEM Capital). Shizune tracks 3 team members at Transformative Energy and Materials Capital (TEM Capital). Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/transformative-energy-and-materials-capital-tem-capital?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 1 | 33% |
| Construction | 1 | 33% |
| Biomass Energy | 1 | 33% |
| Renewable Energy | 1 | 33% |
| Civil Engineering | 1 | 33% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Pre-Seed | 1 | 33% |
| Series A | 1 | 33% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 1 | 33% |
| The Netherlands | 1 | 33% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| John Preston | Managing Partner | 0 | — |
| John Sylvia | Managing Partner | 0 | — |
| Roger Berry | Partner | 0 | — |

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Vantem Global | Vantem Global streamlines the construction process, lowering costs and shortening delivery times. |  | Series A | Jul 07, 2022 |  |
| Vantem Global | Vantem Global streamlines the construction process, lowering costs and shortening delivery times. | $10.1M | Series A | Jun 14, 2022 |  |
| Clean Electricity Generation | CEG developed a unique biomass-refining technology based on torrefaction, replacing fossil fuels in the existing electricity and heat infrastructure with renewable biomass. With the aid of its own patented torrefaction reactor, raw biomass – derived from necessary forest maintenance and residual flows from sustainably managed forests – isconverted into biocoal pellets that have the same high calorific value and properties as highly polluting coal.The production capacity of CEG's plug-and-play torrefaction system is 20,000 tonnes of biocoal per reactor per year. In addition, smarter technology means lower capital expenditure and operating expenses. |  | Pre-Seed | Jun 04, 2013 |  |

3 of 3 investments shown.

## Co-investors
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund, 2 deals together
- Quadrant Management — VC Fund, 2 deals together
- [Momentum Capital](https://shizune.co/investors/profile/momentum-capital) — VC Fund, 1 deal together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund
- [Everywhere Ventures](https://shizune.co/investors/profile/everywhere-ventures) — VC Fund

## FAQ

### What does Transformative Energy and Materials Capital (TEM Capital) invest in?

Transformative Energy and Materials Capital (TEM Capital) invests primarily in Energy, Construction and Biomass Energy startups, most often at Pre-Seed and Series A stage. Most of the 3 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 Transformative Energy and Materials Capital (TEM Capital)?

Public channels for Transformative Energy and Materials Capital (TEM Capital) 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 Transformative Energy and Materials Capital (TEM Capital)?

The team at Transformative Energy and Materials Capital (TEM Capital) includes John Preston (Managing Partner), John Sylvia (Managing Partner) and Roger Berry (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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