JB Straubel
Angel Investor
San Francisco, United States
JB Straubel is a seed investor in San Francisco focused on Energy and Manufacturing. JB Straubel is based out of Carson City, Nevada, and is the Founder and CEO of Redwood Materials. JB previously worked at Tesla as a Co-Founder and CTO. JB Straubel attended Stanford University. JB Straubel has been awarded the 2024 Benchmark Lifetime Achievement Award.
- Total investments:
- 9
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries JB Straubel invests in
Stages JB Straubel invests in
Countries JB Straubel invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $2.5M–$10M
Investment Focus
Industry
- Energy 3 (33%)
- Manufacturing 2 (22%)
- Sustainability 2 (22%)
- Precious Metals 2 (22%)
- Solar 1 (11%)
Stage
- Seed 2 (22%)
- Funding Round 2 (22%)
- Series A 1 (11%)
- Series B 1 (11%)
- Series E 1 (11%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Red Metals is a next-generation copper manufacturing startup building America's first domestic high-conductivity copper rod production facility in Charleston, South Carolina. | $10M / Seed / Jun 04, 2026 | ||
| Fervo Energy is a next-generation geothermal developer generating clean power in new places. Fervo Energy commercializes proprietary technology to own, develop, and operate geothermal assets as the dispatchable foundation to a 100% clean energy future. | $462M / Series E / Dec 10, 2025 | ||
| Heron Power develops advanced power electronics and hardware solutions tailored for the modern electrical grid. | $38M / Series A / May 29, 2025 | ||
| Crusoe is on a mission to help the oil industry reduce routine flaring of natural gas. They are passionate about creating solutions that benefit the environment, local communities, and energy producers.Crusoe Energy Systems provides oil and gas companies with a fast, low cost and simple solution to natural gas flaring. As the energy industrystruggles with pipeline constraints and increasing regulations around flaring and combusting, Crusoe is here to help. Their service lets operators preserve or regain regulatory compliance, maintain existing production and facilitate future development. | $128M / Series B / Apr 26, 2021 | ||
| Desktop Metal is reinventing the way design and manufacturing teams produce and 3D print metal parts - from prototyping through mass production. The team is built around the disciplines of materials science, hardware and software engineering, and design. They have raised $97 million in equity funding with investment from technology leadersincluding Google, BMW, Lowe’s, and Kleiner Perkins Caufield & Byers. Located just outside of Boston we are assembling a team of experts and are looking to hire curious and driven engineers, scientists, and designers. | $280M / Post-IPO Equity / Dec 10, 2020 | ||
| Novoloop is an upcycling company that provides a proprietary lifecycling platform to create chemicals and materials from plastic waste. Its Accelerated Thermal Oxidative Decomposition (ATOD) process chemically breaks down plastic films and packaging into monomers, which are then reassembled into virgin-quality TPU and recycled+ formulations. Thecompany operates a demonstration pilot plant in India in partnership with Aether Industries, producing up to 70 metric tons of TPU annually from mixed plastic waste. | $1.4M / Convertible Note / Apr 07, 2020 | ||
| Carbon Lighthouse is a technology company delivering easy building decarbonization for commercial real estate (CRE) owners. With more than a decade of deep expertise in eliminating carbon emissions from the built environment, its unique Efficiency Production platform and CLUES® AI software capture new climate, financial and operational value forowners that need to reach decarbonization goals. Since 2010, Carbon Lighthouse has enabled clients including Goldman Sachs, The Carlyle Group, L&B, AEW and Ohana to increase NOI of $0.20 - $0.50 per square foot at a cost of $0.07 per square foot while achieving science-based ESG objectives. To date, the company has delivered +$250M in client value and eliminated more than 584,000 tons of carbon emissions. For more information visit: www.carbonlighthouse.com. | $27M / Venture - Series Unknown / Mar 12, 2018 | ||
| Axiom Exergy is an energy storage company that develops energy management solutions for supermarkets and commercial buildings.Axiom Exergy offers a thermal energy storage retrofit and software solutions to monitor and manage the energy use of refrigerators. The company also offers a system integrator and thermal storage tank.Axiom Exergy wasfounded by Anthony Diamond and Amrit Robbins in 2014. It is headquartered in Richmond, California. | $2.5M / Seed / Aug 02, 2016 | ||
| See all 9 investments → | |||
Co-Investors
Access 48,091 investors
822 industries, 177 countries. Updated daily. Emails and phones included.
Browse database — It's Free!
Find investors for your startup
Search 48,091 investors by industry and country. Emails and phones included.
Similar Investors
Similar industry
Similar stage
Similar country
Featured in Investor Lists
Recommended lists
FAQ
What does JB Straubel invest in?
JB Straubel invests primarily in Energy, Manufacturing and Sustainability startups, most often at Seed and Funding Round stage. Most of the 9 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does JB Straubel invest in?
JB Straubel typically joins rounds of $2.5M–$10M at Seed. These are whole funding-round sizes, not JB Straubel's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds JB Straubel took part in.
How do I contact JB Straubel?
Public channels for JB Straubel include LinkedIn, X (Twitter) and Facebook. 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 JB Straubel last invest?
The most recent investment recorded for JB Straubel closed in Jun 2026. Shizune tracks 9 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 Nov 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
Contact your first 100 investors today
Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.
Find investors — It's Free!
Continue with Google
Continue with LinkedIn
