John Doerr
Partner and Chairman @ Kleiner Perkins
Menlo Park, United States
John Doerr is a Series A investor at Kleiner Perkins in Menlo Park focused on Software and Health Care. John Doerr is the Partner and Chairman of Kleiner Perkins. He attended Rice University, where he took a B.S. and M.S. in Electrical Engineering, and Harvard Business School, where he took a Master of Business Administration.
- Total investments:
- 125
- Last investment:
- Lead investor:
- 28%
Last updated:
For AI agents: llms.txt
Industries John Doerr invests in
Stages John Doerr invests in
Countries John Doerr invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Series A
- $6M–$88M
- Series B
- $15M–$210M
- Series C
- $30M–$400M
Investment Focus
Industry
- Software 16 (13%)
- Health Care 15 (12%)
- Energy 10 (8%)
- Artificial Intelligence 10 (8%)
- Renewable Energy 9 (7%)
Stage
- Series A 26 (21%)
- Series B 25 (20%)
- Series C 20 (16%)
- Seed 9 (7%)
- Series D 9 (7%)
Country
- United States 70 (56%)
- Canada 1 (1%)
- Sweden 1 (1%)
- Germany 1 (1%)
- Switzerland 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Volantis specializes in developing AI-driven semiconductor solutions. The company focuses on creating advanced systems that support high-performance computing for various applications, including networking, data centers, and edge computing. Volantis provides integrated hardware and software platforms designed to optimize processing power, energyefficiency, and scalability. Their technology aims to enhance the capabilities of existing infrastructure, making it adaptable to emerging computational demands. The company's solutions cater to industries that require robust, efficient computing power at scale. | $88M / Series A / Sep 29, 2026 | ||
| Mazama Energy is a geothermal operator and development firm committed to developing new techniques and technology for removing heat from scorching rocks to produce baseload electricity at the utility-scale without emitting carbon. | $135M / Series B / Sep 18, 2026 | ||
| Voya Energy is an energy management company that has developed technology to transform high-energy recycled metals into a safe fuel. | $35M / Series A / Aug 26, 2026 | ||
| Hopscotch Primary Care is a healthcare company that aims to transform healthcare for rural communities across the country. | $53M / Series D / Aug 18, 2026 | ||
| Antora Energy delivers zero-carbon industrial heat and power to heavy industries that are more reliable than fossil fuels. Antora’s thermal energy storage soaks up excess solar and wind electricity and uses it to heat blocks of carbon so they glow like inside a toaster. | $550M / Series C / Jul 30, 2026 | ||
| Isometric is a carbon removal registry and science platform. | $40M / Series A / Jun 22, 2026 | ||
| GridCARE provides energy security and resilience at a never-before-seen pace, making it the indispensable one-stop power solution for AI data centers. | $64M / Series A / May 14, 2026 | ||
| Panthalassa is a technology company focused on developing renewable energy systems in the ocean, particularly to power computing and artificial intelligence infrastructure. The company works on harnessing wave energy to generate electricity at sea, which can then be used to run offshore data centers or converted into fuels that are transported backto land. | $140M / Series B / May 04, 2026 | ||
| Rhoda is building a new class of robot foundation model designed to bring general intelligence into the physical world. By combining internet-scale video pretraining with closed-loop video predictive control, Rhoda aims to enable robots that can adapt, generalize, and operate autonomously across real-world environments. The company works withleading industrial partners across manufacturing and logistics. | $450M / Series A / Mar 10, 2026 | ||
| OpenEvidence provides an artificial intelligence medical information platform that organizes and synthesizes peer-reviewed clinical research to help physicians access evidence-based insights for clinical decision support. Its products include an AI-powered medical search engine that quickly retrieves and cites relevant literature from majorjournals and tools like DeepConsult that generate comprehensive research syntheses for complex clinical questions. The platform also integrates features that support clinical documentation and evidence retrieval during patient encounters, aiming to streamline how healthcare professionals find and apply clinical evidence. OpenEvidence delivers responses grounded in sourced medical research and supports workflows that assist clinicians in evaluating and interpreting medical knowledge. | $250M / Series D / Jan 21, 2026 | ||
| See all 125 investments → | |||
Co-Investors
About Kleiner Perkins
Kleiner Perkins is a venture capital firm specializing in investing in early-stage, growth, and incubation companies. The firm continues that legacy, investing in founders with bold ideas that span industries and continents, partnering with them from inception to IPO and beyond to maximize the potential of their ideas. They also focus on early computer firms using their devices and programming and service companies. It also invests in the digital, life sciences, and healthcare industries.
Kleiner Perkins Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Brook Byers
Co-Founder
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Charles Holloway
Vice Chairman of Board of Directors
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Ilya Fushman
Partner
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Jerry Liang
Vice President
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Kevin Compton
Partner
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FAQ
What does John Doerr invest in?
John Doerr invests primarily in Software, Health Care and Energy startups, most often at Series A and Series B stage. Most of the 125 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 John Doerr invest in?
John Doerr typically joins rounds of $6M–$88M at Series A, $15M–$210M at Series B and $30M–$400M at Series C. These are whole funding-round sizes, not John Doerr's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds John Doerr took part in.
How do I contact John Doerr?
Public channels for John Doerr 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 John Doerr last invest?
The most recent investment recorded for John Doerr closed in Sep 2026. Shizune tracks 125 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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