Carmichael Roberts
Member @ Breakthrough Energy Ventures
Boston, United States
Carmichael Roberts is a Series A investor at Breakthrough Energy Ventures in Boston focused on Energy and Renewable Energy. Carmichael Roberts is the Founder and Managing Partner of Material Impact. He previously worked at Foro Energy as a Lead Director. Carmichael Roberts attended MIT Sloan School of Management.
- Total investments:
- 147
- Last investment:
- Lead investor:
- 56%
Last updated:
For AI agents: llms.txt
Industries Carmichael Roberts invests in
Stages Carmichael Roberts invests in
Countries Carmichael Roberts invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
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Investment Focus
Industry
- Energy 23 (16%)
- Renewable Energy 22 (15%)
- Manufacturing 16 (11%)
- CleanTech 11 (7%)
- Industrial 9 (6%)
Stage
- Series A 49 (33%)
- Series B 30 (20%)
- Seed 14 (10%)
- Series C 10 (7%)
- Venture - Series Unknown 9 (6%)
Country
- United States 60 (41%)
- Canada 3 (2%)
- France 3 (2%)
- Sweden 2 (1%)
- United Kingdom 2 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Planted Solar focuses on driving the transition of clean energy. | $31.8M / Venture - Series Unknown / Sep 15, 2026 | ||
| Electrification of transportation, greater energy efficiency and grid modernization require advances in power electronics and power conversion systems. Magnetics have presented a critical limitation in advancing these technologies. With the ability to custom engineer the features of magnetic cores, CorePower Magnetics’ components represent a stepchange in efficiency and power density. CorePower Magnetics’ patented combination of advanced manufacturing processes and novel materials results in up to 10x reductions in weight, 5x reductions in volume, and 50% reductions in losses with no rare earth metals required. Combined with our lower operating temperatures, these benefits lead to higher current capabilities, increased electric vehicle ranges, and longer component lifetimes. | $10.6M / Seed / Sep 08, 2026 | ||
| Physical Superintelligence develops physical superintelligence systems that use AI-driven research to study physics, engineer physical systems, and explore new physical laws. Its approach combines human scientists with virtual physicists that conduct autonomous research campaigns covering hypothesis development, verification, experimentation,engineering, and deployment. The company focuses initially on the physical infrastructure underlying AI, including energy, materials, computation, sensing, and manufacturing. | $58M / Seed / Sep 01, 2026 | ||
| Foundation Alloy leverage advanced materials technology to design novel alloys optimized for additive manufacturing. | $22M / Series A / Jun 16, 2026 | ||
| Mantle8 is a natural hydrogen exploration company. It has developed geological models and imaging technologies that detect the best natural hydrogen locations with “world-first accuracy“ | $36.4M / Series A / May 13, 2026 | ||
| Rumin8 is tackling one of the biggest contributors to climate change: methane emissions from livestock. The digestive process of beef and dairy cattle accounts for a full 3.7% of all greenhouse gas emissions, a huge contribution from a single source. With billions of people around the world relying on animal proteins as part of their daily diet,eliminating livestock methane production is a powerful lever in the quest toward a climate-optimal future.Rumin8 has invented a technology that has been shown to reduce the emissions from cattle by up to 95%. Our technology productizes the anti-methane compounds that occur naturally in plants and turns them into dietary supplements for livestock. The results are a reduction in methane emissions by up to 95%, increase in efficiency of the animal’s digestive systems, and more energy for the animal to growWe are on a mission to decarbonize hundreds of millions of cattle around the world so the global food system can take a giant step forward. | $3M / Venture - Series Unknown / Mar 25, 2026 | ||
| ZeroAvia provides hydrogen-electric propulsion systems designed to eliminate aviation emissions while maintaining operational efficiency. The company focuses on scalable technologies that can retrofit existing aircraft and support sustainable aviation. By partnering with various stakeholders, ZeroAvia aims to revolutionize the aviation industrywith cleaner, more efficient flight options. | Dec 22, 2025 | ||
| Fourth Power is an energy storage startup that uses thermal batteries. Through utility-scale thermal storage, the technique transforms renewable energy into an on-demand energy source. | $20M / Series A / Sep 16, 2025 | ||
| Commonwealth Fusion Systems develops fusion energy systems using high-temperature superconducting (HTS) magnets to create compact tokamak reactors. It is building SPARC, a demonstration device designed to achieve net energy gain from fusion and laying the groundwork for ARC, a grid-connected fusion power plant targeting early 2030s operation. Thecompany partners with MIT and manufactures its HTS magnets and related components, applying peer-reviewed science in its firewalling of plasma and reactor engineering. It has introduced innovations like the PIT VIPER superconducting cable to support pulsed-power magnet systems and accelerate readiness for commercial fusion. | $863M / Series B / Aug 27, 2025 | ||
| Planted Solar focuses on driving the transition of clean energy. | $12M / Series A / Jul 29, 2025 | ||
| See all 147 investments → | |||
Co-Investors
Breakthrough Energy Ventures is an investor-led fund made up of members of the Breakthrough Energy Coalition, guided by scientific and technological expertise and committed to investing patiently in developing new ways to live, eat, travel, and build. Breakthrough Energy Ventures provides reliable and affordable power without contributing toclimate change. Breakthrough Energy invests in new technologies that make power reliable and affordable for everyone while not warming the planet.
Breakthrough Energy Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Ann Mettler
Vice President, Europe
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Bill Gates
Founder
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Bill Gates
Founder
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Kyle Teamey
investor
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Adam Uliana
Innovator Fellow
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FAQ
What does Carmichael Roberts invest in?
Carmichael Roberts invests primarily in Energy, Renewable Energy and Manufacturing startups, most often at Series A and Series B stage. Most of the 147 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 Carmichael Roberts?
Public channels for Carmichael Roberts include LinkedIn and X (Twitter). 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.
When did Carmichael Roberts last invest?
The most recent investment recorded for Carmichael Roberts closed in Sep 2026. Shizune tracks 147 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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