# Clean Energy Ventures

> Clean Energy Ventures is a VC fund in Boston backing Manufacturing and Energy. See 72 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Boston, United States
- Total investments: 72
- Last investment: Feb 2026
- Lead investor: 68%
- Fund size: $305M
- Last fund: May 2024
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/clean-energy-ventures
- X (Twitter): https://twitter.com/CEVteam
- Website: https://cleanenergyventures.com/

Clean Energy Ventures is a VC fund in Boston focused on Manufacturing and Energy. Clean Energy Ventures invests in seed-stage climate tech startups in North America, Europe, and Israel. The company's investments are commercializing disruptive clean energy technologies and business model innovations and achieving significant scale by taking advantage of market-driven forces to address climate change.

## Contacts

5 contacts available for Clean Energy Ventures. Shizune tracks 10 team members at Clean Energy Ventures. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/clean-energy-ventures-cev?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1.5M–$10M |
| Series A | $2.1M–$26M |
| Convertible Note | $500k–$2.5M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Manufacturing | 14 | 19% |
| Energy | 11 | 15% |
| Renewable Energy | 9 | 13% |
| Chemical | 7 | 10% |
| Energy Efficiency | 5 | 7% |

59 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 20 | 28% |
| Series A | 18 | 25% |
| Convertible Note | 6 | 8% |
| Series B | 5 | 7% |
| Venture - Series Unknown | 5 | 7% |

8 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 30 | 42% |
| Canada | 3 | 4% |
| Israel | 1 | 1% |
| Germany | 1 | 1% |
| United Kingdom | 1 | 1% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Daniel Goldman | Co-Founder & Managing Director | 27 | https://shizune.co/investors/profile/dan-goldman-f113 |
| David S. Miller | Co-Founder & Managing Director | 9 | https://shizune.co/investors/profile/david-s-miller-dc98 |
| Temple Fennell | Co-Founder & Managing Director | 12 | https://shizune.co/investors/profile/temple-fennell |
| Jeffrey Weiss | Senior Venture Partner | 0 | https://shizune.co/investors/profile/jeffrey-weiss-38bf |
| John Santoleri | Venture Partner | 1 | https://shizune.co/investors/profile/john-santoleri |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| DG Matrix | DG Matrix innovative solutions unlock gigaton-scale emissions reductions by enabling electrification anywhere and everywhere with less material and a smaller footprint. | $60M | Series A | Feb 18, 2026 |  |
| NexDash | NexDash provides software and operational technology for electric freight transportation. The company develops NexOS, a fleet management platform that supports route planning, energy forecasting, charging coordination, dispatch operations, compliance management, and fleet monitoring for electric truck operators. It also operates electric truckingnetworks and uses operational data from fleet activities to improve software capabilities and automation. The platform combines transportation infrastructure, fleet operations, and data-driven intelligence to help manage electric vehicle logistics workflows and fleet performance. | $5.8M | Seed | Nov 21, 2025 |  |
| OXCCU | OXCCU develops renewable energy technology with the goal of achieving a circular economy for fuels, chemicals, and plastics. The technology offered by the company combines carbon dioxide from the atmosphere with hydrogen from water and renewable electricity to produce fuels, chemicals, and biodegradable plastics. | $27.9M | Series B | Sep 29, 2025 |  |
| Hertha Metals | Hertha Metals is a manufacturing industry that designs and manufactures steel from any grade of iron ore without the use of coal. | $17M | Venture - Series Unknown | Jul 22, 2025 |  |
| Exterra Carbon Solutions | Exterra is a company that is creating a world-class solution for long-term CO2 storage using mineral waste. | $14.5M | Series A | May 06, 2025 |  |
| Queens Carbon | Queens Carbon is working on a processing system that will dramatically cut energy use. The system minimizes calcination and material synthesis energy consumption, allowing for low-cost carbon capture and carbon-neutral cement manufacture. | $10M | Seed | Apr 30, 2025 |  |
| DG Matrix | DG Matrix innovative solutions unlock gigaton-scale emissions reductions by enabling electrification anywhere and everywhere with less material and a smaller footprint. | $20M | Seed | Mar 11, 2025 |  |
| MacroCycle Technologies | MacroCycle is developing a technology to curb the usage of fossil fuel derived plastic through a circular, sustainable and zero-carbon plastic upcycling process. The company's proprietary process based on the synthesis of cyclic macromolecules enables us to produce virgin-grade recycled PET from plastic waste at lower energy use thantraditional processes. | $6.5M | Seed | Feb 06, 2025 |  |
| Advanced Ionics | Advanced Ionics engages in eliminating the green premium associated with green hydrogen production. Its electrolyzers are designed for industry allowing customers to produce green hydrogen symbiotically within their existing facilities and operations in remote locations where electricity is abundant and co-generation is not. | $6.7M |  | Jan 08, 2025 |  |
| Electrified Thermal Solutions | Electrified Thermal Solutions replace fossil fuels with renewable heat in every furnace, turbine, boiler, and kiln to decarbonize industry.Electrified Thermal Solutions started at MIT in the noisy laboratory basement of the Department of Nuclear Science and Engineering. The goal was simple: start an energy revolution.Founded in 2021, thecompany is based in Medford, Massachusetts. | $19M |  | Dec 12, 2024 |  |

10 of 72 investments shown.

## Co-investors
- [Clean Energy Venture Group](https://shizune.co/investors/profile/clean-energy-venture-group) — VC Fund, 25 deals together
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund, 5 deals together
- [BDC Capital’s Climate Tech Fund](https://shizune.co/investors/profile/bdc-capital-s-climate-tech-fund) — VC Fund, 4 deals together
- [ENGIE New Ventures](https://shizune.co/investors/profile/engie-new-ventures) — VC Fund, 4 deals together
- [Grantham Foundation](https://shizune.co/investors/profile/grantham-foundation) — VC Fund, 4 deals together
- [Avista Development](https://shizune.co/investors/profile/avista-development) — VC Fund, 3 deals together

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## FAQ

### What does Clean Energy Ventures invest in?

Clean Energy Ventures invests primarily in Manufacturing, Energy and Renewable Energy startups, most often at Seed and Series A stage. Most of the 72 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Clean Energy Ventures's check size?

Clean Energy Ventures typically joins rounds of $1.5M–$10M at Seed, $2.1M–$26M at Series A and $500k–$2.5M at Convertible Note. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Clean Energy Ventures participates in.

### How do I contact Clean Energy Ventures?

Public channels for Clean Energy Ventures include LinkedIn, X (Twitter) and 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 Clean Energy Ventures?

The team at Clean Energy Ventures includes Daniel Goldman (Co-Founder & Managing Director), David S. Miller (Co-Founder & Managing Director) and Temple Fennell (Co-Founder & Managing Director), among 10 team members tracked by Shizune. 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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