# Bill Gates

> Bill Gates is a Series A investor at Breakthrough Energy Ventures backing Energy. See 96 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures)
- Location: Seattle, United States
- Total investments: 96
- Last investment: Jun 2025
- Lead investor: 22%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/williamhgates
- X (Twitter): https://twitter.com/BillGates
- Website: http://www.gatesnotes.com/
- Facebook: https://www.facebook.com/BillGates

Bill Gates is a Series A investor at Breakthrough Energy Ventures in Seattle focused on Energy and Biotechnology. Bill Gates is the Co-chair of Bill and Melinda Gates Foundation. He attended Harvard University.

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $13M–$105M |
| Series B | $14M–$161M |
| Series C | $14M–$135M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 12 | 13% |
| Biotechnology | 11 | 11% |
| Renewable Energy | 8 | 8% |
| Manufacturing | 7 | 7% |
| Medical | 6 | 6% |

93 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 15 | 16% |
| Series B | 15 | 16% |
| Series C | 15 | 16% |
| Series D | 11 | 11% |
| Venture - Series Unknown | 7 | 7% |

15 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 39 | 41% |
| Brazil | 1 | 1% |
| Canada | 1 | 1% |
| Israel | 1 | 1% |
| Taiwan | 1 | 1% |

9 countries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| TerraPower | TerraPower aims to develop a sustainable and economic nuclear energy system while greatly reducing proliferation risks and creating new options for converting low-level waste into vast energy resources. TerraPower is investigating a class of nuclear fast reactors called the traveling wave reactor (TWR). | $650M | Venture - Series Unknown | Jun 18, 2025 |  |
| Lucy Therapeutics | Lucy Therapeutics is a biotech company providing effective treatments for neurological diseases start with the mitochondria. The company is offering a differentiated approach to drug discovery by drugging targets associated with early disease pathogenesis. The company's approach can also be expanded to provide new options for treating similarneurologically focused diseases including Parkinson's Disease (PD) and Alzheimer's Disease (AD). | $12.5M | Venture - Series Unknown | May 28, 2024 |  |
| Power Solutions Solar | Empresa especializada em limpeza e manutenções de usinas Solar, atendemos clientes que possuem usinas solares em todo Brasil, garantindo mais geração e mais retorno do investimento realizado pelos clientes. Elaboramos um pacote de manutenções anual, onde os clientes apenas agendam as datas e nossa equipe realiza todo serviço, zerando os custos commão de obra , compras de equipamentos, manutenções de equipamentos, treinamentos, EPI´S, EPC´S, aquisição de veículos e manutenções. Nossa equipe e equipamentos a disposição dos clientes nas datas certas. | $2K | Pre-Seed | Nov 22, 2023 |  |
| Koloma | Koloma is a geologic hydrogen company that leverages its technology, proprietary data, and human capital advantages to identify and commercialize geologic hydrogen resources. The company creates and commercializes data-driven approaches to energy transition resource development solutions that help reduce global carbon emissions, allowing businessesto lower their carbon footprint and combat climate change. | $91M | Venture - Series Unknown | Jul 20, 2023 |  |
| Inflection AI | Inflection AI is a machine learning startup that engages in redefining human-computer interaction. | $1.3B | Venture - Series Unknown | Jun 29, 2023 |  |
| Bellame | Bellame is a style beauty company that is expanding daily. The company currently has 4 products cleanser, serum, eye cream, and moisture. They are on a transformational mission because beauty is more than skin-deep. |  | Seed | May 28, 2023 |  |
| MTN Nigeria | MTN Nigerian is a provider of mobile telecom services through the GSM platform. | $271.5M | Post-IPO Debt | Mar 08, 2023 |  |
| Heineken | Heineken is a global brewer that markets premium beers and cider brands. Established in 1864 by the Heineken family, HEINEKEN has a long and proud history and heritage as an independent global brewer. Today, HEINEKEN is the number one brewer in Europe and the number three brewer by volume in the world. With recent acquisitions in Africa, India,Asia and Latin America, they are continuing to increase their presence within emerging markets, which will contribute to their ongoing growth. | $902M | Post-IPO Equity | Feb 23, 2023 |  |
| Mainspring Energy | Mainspring Energy is engineering advanced technology to revolutionize the way electricity is generated and delivered | $140M | Series E | Sep 21, 2022 |  |
| Nimbus Therapeutics | Nimbus Discovery is now Nimbus Therapeutics to reflect our transition into a clinical stage company. Nimbus Therapeutics is a biotechnology company headquartered in Cambridge, Mass., that is pioneering a new computational technology-driven paradigm to rapidly advance a diverse pipeline of novel small molecule product candidates into clinicaldevelopment. We are designing highly selective and potent medicines to disrupt known drivers of serious diseases, including metabolic disease, cancer and immune-inflammatory disorders. | $125M | Venture - Series Unknown | Sep 12, 2022 |  |

10 of 96 investments shown.

## Co-investors
- [Khosla Ventures](https://shizune.co/investors/profile/khosla-ventures) — VC Fund, 13 deals together
- [Lux Capital](https://shizune.co/investors/profile/lux-capital) — VC Fund, 13 deals together
- [Temasek](https://shizune.co/investors/profile/temasek) — VC Fund, 6 deals together
- [Madrona](https://shizune.co/investors/profile/madrona-venture-group) — VC Fund, 5 deals together
- [Atlas Venture](https://shizune.co/investors/profile/atlas-venture) — VC Fund, 4 deals together
- [DNS Capital](https://shizune.co/investors/profile/dns-capital) — VC Fund, 4 deals together

## About Breakthrough Energy Ventures

VC Fund · Paris, France

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.

5 contacts available at Breakthrough Energy Ventures.

| Name | Title | Profile |
| --- | --- | --- |
| Ann Mettler | Vice President, Europe | https://shizune.co/investors/profile/ann-mettler |
| Bill Gates | Founder | https://shizune.co/investors/profile/bill-gates |
| Bill Gates | Founder | https://shizune.co/investors/profile/william-gates-sr |
| Kyle Teamey | investor | https://shizune.co/investors/profile/kyle-teamey |
| Adam Uliana | Innovator Fellow | https://shizune.co/investors/profile/adam-uliana-831c |

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## FAQ

### What does Bill Gates invest in?

Bill Gates invests primarily in Energy, Biotechnology and Renewable Energy startups, most often at Series A and Series B stage. Most of the 96 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 Bill Gates's check size?

Bill Gates typically joins rounds of $13M–$105M at Series A, $14M–$161M at Series B and $14M–$135M at Series C. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Bill Gates participates in.

### When did Bill Gates last invest?

The most recent investment recorded for Bill Gates closed in Jun 2025. Shizune tracks 96 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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