# Gabriel Kra

> Gabriel Kra is a Series A investor at Prelude Ventures backing Software and Sustainability. See 9 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Prelude Ventures](https://shizune.co/investors/profile/prelude-ventures-llc)
- Location: San Francisco, United States
- Total investments: 9
- Last investment: Oct 2024
- Lead investor: 56%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/gabriel-kra-632a57

Gabriel Kra is a Series A investor at Prelude Ventures in San Francisco focused on Software and Sustainability. Gabriel Kra co-founded Prelude Ventures in 2013, after almost 25 years as an investor, entrepreneur, scientist, activist, and ski-bum. Before launching Prelude Ventures, Gabriel spent four years as an investment banker with Deutsche Bank in its solar and semiconductor groups. He also was an early employee at venture-backed telecommunications andsemiconductor start-ups, where he was instrumental in raising money, launching products, developing technology and getting acquired. Gabriel’s early experience working a summer at Yellowstone National Park and for Greenpeace sparked his lifelong commitment to fighting climate change.​Gabriel serves on the Boards of Directors of Renew Financial, Ripple Foods, Sense Labs, Natron Energy, ClearMetal, Raxium, and Form Energy, and is active with Meati, Metalenz, Zymergen, Planet, Catalog, and Spark Thermionics. Other investments at Prelude include PLANT PV, Suniva (ShunFeng Clean Energy), SolarBridge (SPWR), and Clean Urban Energy. Gabriel also serves on the Board of Directors of Activate and The CREO Syndicate, and on advisory boards for Prime Coalition and Carbon180.​Gabriel holds MBAs from the Columbia Business School and the Haas School of Business, University of California at Berkeley, an MS in atmospheric chemistry from SUNY Stony Brook and a BA in philosophy from Columbia College. Gabriel is still an avid skier, and spends as much of his free time as possible in the mountains, with his wife and four children. Gabriel now roots for the San Francisco Giants after years as a New Yorker, and his favorite guilty pleasure, much to his wife’s chagrin, is Clash of Clans.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 22% |
| Sustainability | 2 | 22% |
| Water | 1 | 11% |
| Energy | 1 | 11% |
| FinTech | 1 | 11% |

23 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 4 | 44% |
| Seed | 1 | 11% |
| Series B | 1 | 11% |
| Series D | 1 | 11% |
| Funding Round | 1 | 11% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Tempo | RedoxBlox offers thermochemical energy storage technology for natural gas power plant operators. It helps power plant operators drastically reduce carbon and nitrogen oxides emissions, its solution integrates with the existing natural gas power plant infrastructure, minimizes impact on plant total capital costs, increases grid resiliency andsafety, and is recyclable, non-toxic, and non-combustible, enabling industries with renewables grid through the deployment of large-scale long-duration energy storage.The company was founded in 2020 and is based in East Lansing, Michigan. | $30M | Series A | Oct 30, 2024 |  |
| Ebb Carbon | Ebb Carbon works on a reverse electrochemical ocean deacidification process that captures CO2 from the atmosphere. It delivers a new method of carbon removal that uses electrochemistry to enhance the ocean’s natural ability to safely store CO2 while reducing ocean acidity. Its approach has the potential to be one of the safest, most scalable, andmost affordable ways to remove excess CO2 from the atmosphere. | $20M | Series A | Apr 20, 2023 |  |
| Latitude Media | Post Script Media works with companies and organizations to make compelling audio. | $2M | Seed | Jun 21, 2022 |  |
| Mill | Mill is all about answering a simple question: how can we prevent waste? Less waste can save time, money, energy, maybe even our planet. And there’s no better place to start than food. Food waste is one of the most solvable climate problems facing us today. Plus, our trash really stinks. It’s gross, heavy, and our least favorite chore. At Mill weare striving to build a better environment for all, as we take on climate and kitchen change. |  | Series B | Jan 12, 2022 |  |
| ClearMetal | ClearMetal, Inc., based in San Francisco CA (USA), is a leader in the Continuous Delivery Experience (CDX), enabling supply chain organizations to optimize logistics and provide their customers with easy access to trusted, live information about their shipments. The ClearMetal CDX Platform uses proprietary machine learning algorithms to break freefrom static-visibility paradigms and make sense of supply chain data. ClearMetal was founded by top software engineers, data scientists, and operations researchers from Stanford University, Google, and Silicon Valley and is funded by Eclipse Ventures, Prelude Ventures, Innovation Endeavors, NEA, SAP.io, Prologis, PSA Unboxed, DCLI, and the founders of GT Nexus, Navis, and Uber Freight. For more information visit www.clearmetal.com. | $19M | Series A | Feb 04, 2020 |  |
| Nyriad | Nyriad is developing the industry's first storage solutions based on a new architecture that redefines how data is stored. The architecture combines the power of GPUs and CPUs to deliver an unprecedented combination of performance, resilience, and efficiency, enabling massive amounts of data and multiple data types to be managed in a singlestorage system that is simple to deploy, operate, scale, and maintain. Headquartered in Austin, Texas, Nyriad is building a new storage architecture from the ground up that empowers businesses to grow, adapt, and stay competitive in a data-driven world. For more information, visit us on the web at www.nyriad.io. | $8.5M | Series A | Feb 06, 2018 |  |
| ClearMetal | ClearMetal, Inc., based in San Francisco CA (USA), is a leader in the Continuous Delivery Experience (CDX), enabling supply chain organizations to optimize logistics and provide their customers with easy access to trusted, live information about their shipments. The ClearMetal CDX Platform uses proprietary machine learning algorithms to break freefrom static-visibility paradigms and make sense of supply chain data. ClearMetal was founded by top software engineers, data scientists, and operations researchers from Stanford University, Google, and Silicon Valley and is funded by Eclipse Ventures, Prelude Ventures, Innovation Endeavors, NEA, SAP.io, Prologis, PSA Unboxed, DCLI, and the founders of GT Nexus, Navis, and Uber Freight. For more information visit www.clearmetal.com. | $9M | Series A | Sep 20, 2017 |  |
| Renew Financial | Renew Financial provides financing solutions that help efficiency and renewable energy contractors grow their businesses while promoting energy independence. Its aim is to develop advanced financing designed to transform America’s economy to clean energy. The company’s financing products include PACE financing model and the Warehouse for EnergyEfficiency Loans, which opens the residential energy efficiency finance market to large institutional investors.Founded in 2008 by Cisco DeVries, Renew Financial has a partnership with SolarCity targeted at small- and medium-sized businesses utilizing PACE. | $70M | Series D | Feb 11, 2016 |  |
| Renew Financial | Renew Financial provides financing solutions that help efficiency and renewable energy contractors grow their businesses while promoting energy independence. Its aim is to develop advanced financing designed to transform America’s economy to clean energy. The company’s financing products include PACE financing model and the Warehouse for EnergyEfficiency Loans, which opens the residential energy efficiency finance market to large institutional investors.Founded in 2008 by Cisco DeVries, Renew Financial has a partnership with SolarCity targeted at small- and medium-sized businesses utilizing PACE. | $20M |  | Apr 24, 2014 |  |

9 of 9 investments shown.

## Co-investors
- [Angeleno Group](https://shizune.co/investors/profile/angeleno-group) — VC Fund, 2 deals together
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund, 2 deals together
- [Claremont Creek Ventures](https://shizune.co/investors/profile/claremont-creek-ventures) — VC Fund, 2 deals together
- [NGEN Partners](https://shizune.co/investors/profile/ngen-ventures) — VC Fund, 2 deals together
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund, 1 deal together
- [Apollo](https://shizune.co/investors/profile/apollo-global-management-llc) — VC Fund, 1 deal together

## About Prelude Ventures

VC Fund · San Francisco, United States

Prelude Ventures invests in and supports early-stage startups with the greatest potential to mitigate climate change. Our goal is to help build the next generation of category-defining businesses.

5 contacts available at Prelude Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Gabriel Kra | Managing Director | https://shizune.co/investors/profile/gabriel-kra |
| ​Laura Baxter-Simons | Co-Founder | https://shizune.co/investors/profile/laura-baxter-simons |
| Bryan Shill | Associate | https://shizune.co/investors/profile/bryan-shill |
| Carly Anderson | Principal | https://shizune.co/investors/profile/carly-anderson-e404 |
| Eileen McMahon | Operations Coordinator | https://shizune.co/investors/profile/eileen-mcmahon-c15d |

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## FAQ

### What does Gabriel Kra invest in?

Gabriel Kra invests primarily in Software, Sustainability and Water startups, most often at Series A and Seed 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.

### When did Gabriel Kra last invest?

The most recent investment recorded for Gabriel Kra closed in Oct 2024. 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 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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