# Breakthrough Energy: portfolio, investments and team

> Breakthrough Energy is a vc firm based in United States. 150 investments on record, 50 in the last 12 months, latest Oct 2026.

Source: https://millionrounds.com/fund/breakthrough-energy (Millionrounds; every figure on the page links to its filing or article)

United States · [Investor](https://millionrounds.com/investors)

# Breakthrough Energy

Last cheque observed Oct 2026; 150 cheques on record.

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Deploying now New fund $175M, Aug 2026 VC firm

Pre-seed Seed Series A Smartgrids Grid Co2

Follow Breakthrough Energy and see its new cheques in your feed. [Start following](https://millionrounds.com/login?join=1&why=follow&next=%2Ffund%2Fbreakthrough-energy)

Deploying now

**96%** of best year **50** **cheques in 12 months**, 150 on record

Since the last cheque **12** days **00** hrs **00** min **00** sec

Median round **$28M** Cheque size, as they say **$500K – $50M** Rounds led **6 of 150** Sole investor **16 rounds** Mostly in **United States, 73%**

Pitch Breakthrough Energy

## Breakthrough Energy highlights

- 01 50 cheques in the last 12 months
- 02 Mostly Venture and Series A: 53% of its rounds
- 03 Sole investor in 16 rounds, median $11M

## What they do

> Filed 1 private fund offering with the SEC, the most recent in 2024-05 From their own website

- **Type:** VC firm (from a list, unverified)
- **Cheque size:** $500K – $50M as they say
- **Stages:** Pre-seed Seed Series A Series B Growth
- **Sectors:** Smartgrids Grid Co2
- **Based in:** Kirkland, United States
- **Cold pitches:** Not stated

## The record

Every round we can evidence, newest first **150 appearances**

- **2026** 43 rounds
- **Oct** **[Kodama](https://millionrounds.com/company/kodama)** Seed · US · AgFunderNews **$7.0M** With 7 others
- **Sept** **[ArkeaBio](https://millionrounds.com/company/arkea-bio)** Series A · US · AgFunderNews **$15M** With 1 other
- **Sept** **[Hertha Metals](https://millionrounds.com/company/hertha-metals)** Debt · US **$69M** With 4 others
- **Sept** **[Fervo Energy](https://millionrounds.com/company/fervo-energy)** Grant · US **$20M** With 4 others
- **Sept** **[Xcimer Energy](https://millionrounds.com/company/xcimer-energy)** Venture · US **$100M** With 2 others
- **Sept** **[H2SITE](https://millionrounds.com/company/h2site)** Grant · ES **$3.9M** With 2 others
- **Sept** **[Type One Energy](https://millionrounds.com/company/type-one-energy)** Venture · US **$1.0M** With 3 others
- **Sept** **[Physical Superintelligence](https://millionrounds.com/company/physical-superintelligence)** Seed · US **$58M** With 3 others
- **Sept** **[Planted](https://millionrounds.com/company/planted)** Venture · US **$32M** With 2 others
- **Sept** **[Heron Power](https://millionrounds.com/company/heron-power)** Debt · US **$60M** With 3 others
- **Sept** **[Reactive Technologies](https://millionrounds.com/company/reactive-technologies)** Debt · GB **$22M** With 2 others
- **Aug** **[Form Energy](https://millionrounds.com/company/form-energy)** Series G · US · TechCrunch **$750M** With 19 others
- **Aug** **[LuxWall](https://millionrounds.com/company/luxwall)** Debt · US **$77M** With 3 others
- **Jul** **[Antora Energy](https://millionrounds.com/company/antora-energy)** Series C · US · Crunchbase News **$550M** With 14 others
- **Jul** **[Rize](https://millionrounds.com/company/rize)** Series B · US **$20M** With 2 others
- **Jul** **[Savor](https://millionrounds.com/company/savor)** Venture · US **$32M** Sole investor
- **Jul** **[Dandelion Energy](https://millionrounds.com/company/dandelion-energy)** Grant · US **$40M** With 3 others
- **Jun** **[Deep Sky](https://millionrounds.com/company/deep-sky)** Venture · CA **Undisclosed** With 3 others
- **May** **[GridCARE](https://millionrounds.com/company/gridcare)** Series A · US · Ventureburn **$64M** With 5 others
- **May** **[Mantle8](https://millionrounds.com/company/mantle8)** Series A · FR · Ventureburn **$36M** With 5 others
- **May** **[Cowboy Space Corporation](https://millionrounds.com/company/cowboy-space-corporation)** Series B · US · TechCrunch **$275M** With 6 others
- **May** **[Barocal](https://millionrounds.com/company/barocal)** Seed · GB · Ventureburn **$10M** With 6 others
- **May** **[Boston Metal](https://millionrounds.com/company/boston-metal)** Venture · US **$75M** With 3 others
- **May** **[Terra CO2 Technologies](https://millionrounds.com/company/terra-co2-technologies)** Venture · US **$22M** With 1 other
- **Apr** **[Mangrove Lithium](https://millionrounds.com/company/mangrove-lithium)** Grant · CA **$16M** With 3 others
- **Apr** **[IonQ](https://millionrounds.com/company/ionq)** Grant · US **$20M** With 3 others
- **Apr** **[Aeroseal](https://millionrounds.com/company/aeroseal)** Series B · US **$20M** With 1 other
- **Mar** **[Rumin8](https://millionrounds.com/company/rumin8)** Seed · AU · Startup Daily **$3.0M** With 2 others
- **Mar** **[Arinna](https://millionrounds.com/company/arinna)** Seed · US · TechCrunch **$4.0M** With 4 others
- **Mar** **[Mantle8](https://millionrounds.com/company/mantle8)** Grant · FR **$2.4M** Sole investor
- **Mar** **[M2X Energy](https://millionrounds.com/company/m2x-energy)** Venture · US **$20M** Sole investor
- **Mar** **[MacroCycle Technologies](https://millionrounds.com/company/macrocycle-technologies)** Seed · US **$3.0M** With 5 others
- **Mar** **[Litherm Technologies](https://millionrounds.com/company/litherm-technologies)** Seed · DE **$7.6M** Sole investor
- **Mar** **[Rift](https://millionrounds.com/company/rift)** Series B · US **$97M** With 3 others
- **Feb** **[LanzaJet](https://millionrounds.com/company/lanzajet)** US · Ventureburn **$47M** With 1 other
- **Feb** **[Heron Power](https://millionrounds.com/company/heron-power)** Series B · US · TechCrunch **$140M** *Led*
- **Jan** **[MAX](https://millionrounds.com/company/max)** Series B · NG · Disrupt Africa **$24M** With 7 others
- **Jan** **[Type One Energy](https://millionrounds.com/company/type-one-energy)** US · TechCrunch **$87M** With 2 others
- **Jan** **[Mangrove Lithium](https://millionrounds.com/company/mangrove-lithium)** Debt · CA **$85M** With 2 others
- **Jan** **[Data Blanket](https://millionrounds.com/company/data-blanket)** Venture · US **Undisclosed** With 1 other

An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.

## The team

Named by the firm itself, on a filing, its Form ADV or its company registration **11 named**

CS **Carmichael S. Roberts** Manager of the Managing Member i Filing they signed

EJ **Eric John Toone** Manager of the Managing Member i Filing they signed

HH **Hasso Henry Plattner** Member of the Issuer's Board of Directors i Filing they signed

JH **Jack Henry Ma** Member of the Issuer's Board of Directors i Filing they signed

JD **John Douglas Arnold** Member of the Issuer's Board of Directors i Filing they signed

LJ **Louis John Doerr** Member of the Issuer's Board of Directors i Filing they signed

MD **Mukesh Dhirubhai Ambani** Member of the Issuer's Board of Directors i Filing they signed

RH **Rodi Henry Guidero** Executive Director i Filing they signed

RM **Rodrigo M Guidero** Manager of the Managing Member i Filing they signed

VH **Vinod Henry Khosla** Member of the Issuer's Board of Directors i Filing they signed

WH **William Henry Gates III** Member of the Issuer's Board of Directors (Chairman) i Filing they signed

We also hold **40** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.

## What the register says

From the firm's own filings with the SEC, which it must file accurately by law

**$5.8B** gross assets of its funds Oct 2026

**Exempt** reporting adviser venture or small private funds

- **Legal name:** Breakthrough Energy Ventures Management, L.P.
- **SEC number:** CRD 325541

New fund on file

**$175M**

raised in Aug 2026

From its SEC filing, not a journalist: a firm that has just raised has money to deploy.

## The cheque

Pre-seed Seed Series A

Median round joined **$28M** the round, not its cheque Alone, median **$11M**

Led 6 of 150 rounds **4%**

- **Said size:** $500K – $50M
- **Sole investor:** 16 rounds
- **Last cheque:** Oct 2026

Rounds by stage said on their site

- Venture *38*
- Series A said *30*
- Series B said *23*
- Seed said *18*
- Grant *11*
- Series C *9*
- Pre-seed said *-*

Cheques by month Led Joined

Nov 2023 Oct 2026

Often in the room with

- [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) 15
- [National Science Foundation](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno) 11
- [US Department of Energy](https://millionrounds.com/fund/u-s-department-of-energy) 11
- [Energy Impact Partners](https://millionrounds.com/fund/energy-impact-partners) 10
- [Alumni Ventures](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund) 8
- [Clean Energy Ventures](https://millionrounds.com/fund/clean-energy-ventures) 8

**Pitching Breakthrough Energy?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque.

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## Who they invest alongside

The investors most often in the same rounds as Breakthrough Energy. A count of rooms they were both in, not a relationship either has claimed.

[**Lowercarbon Capital** VC firm **15** rounds together](https://millionrounds.com/fund/lowercarbon-capital)[**National Science Foundation** Government **11** rounds together](https://millionrounds.com/fund/nsf-small-business-innovation-research-small-business-techno)[**US Department of Energy** Government **11** rounds together](https://millionrounds.com/fund/u-s-department-of-energy)[**Energy Impact Partners** VC firm **10** rounds together](https://millionrounds.com/fund/energy-impact-partners)[**Alumni Ventures** VC firm **8** rounds together](https://millionrounds.com/fund/us-strategic-tech-fund-an-alumni-ventures-fund)[**Clean Energy Ventures** VC firm **8** rounds together](https://millionrounds.com/fund/clean-energy-ventures)[**Khosla Ventures** VC firm **8** rounds together](https://millionrounds.com/fund/khosla-ventures)[**Collaborative Fund** VC firm **7** rounds together](https://millionrounds.com/fund/collaborative-fund)[**DCVC** VC firm **7** rounds together](https://millionrounds.com/fund/data-collective)[**Fifth Wall** VC firm **7** rounds together](https://millionrounds.com/fund/fifth-wall)[**Andreessen Horowitz** VC firm **6** rounds together](https://millionrounds.com/fund/andreessen-horowitz)[**Elemental Impact** VC firm **6** rounds together](https://millionrounds.com/fund/elemental-impact)

## Recently backed

The latest companies Breakthrough Energy put money into.

[**Kodama** $7.0M · Oct 2026](https://millionrounds.com/company/kodama)[**Fervo Energy** $20M · Sept 2026](https://millionrounds.com/company/fervo-energy)[**Xcimer Energy** $100M · Sept 2026](https://millionrounds.com/company/xcimer-energy)[**H2SITE** $3.9M · Sept 2026](https://millionrounds.com/company/h2site)[**Type One Energy** $1.0M · Sept 2026](https://millionrounds.com/company/type-one-energy)[**Physical Superintelligence** $58M · Sept 2026](https://millionrounds.com/company/physical-superintelligence)

## On podcasts

3 episodes naming Breakthrough Energy in the title, and 4 more that mention it.

- [Inevitable](https://millionrounds.com/podcasts/inevitable) 30 Aug 2023 · 1h 4m Capital Series: Jonah Goldman, North Cascade Strategies fmr. Breakthrough Energy Mentions [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) Apple PodcastsShow page
- [Inevitable](https://millionrounds.com/podcasts/inevitable) 23 Jan 2023 · 1h 10m Peter Minor, Carbon180 & Jack Andreasen, Breakthrough Energy With [Peter Minor](https://millionrounds.com/person/peter-minor) Mentions [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) Apple PodcastsShow page
- [Inevitable](https://millionrounds.com/podcasts/inevitable) 13 Feb 2020 · 51 min Ep 81: Matt Eggers, Investor & Company Builder at Breakthrough Energy Ventures With [Matt Eggers](https://millionrounds.com/person/matt-eggers) Mentions [Breakthrough Energy](https://millionrounds.com/fund/breakthrough-energy) Apple PodcastsShow page

### Mentioned in

- [Inevitable](https://millionrounds.com/podcasts/inevitable) 14 Jul 2026 · 49 min Koloma's Bet on Buried Hydrogen for Farmers Apple PodcastsShow page
- [Inevitable](https://millionrounds.com/podcasts/inevitable) 12 Dec 2024 · 41 min Tin-Powered Energy Storage with Fourth Power Apple PodcastsShow page
- [Inevitable](https://millionrounds.com/podcasts/inevitable) 25 Jan 2024 · 38 min Startup Series: Cleaner Chemicals with Dioxcycle Apple PodcastsShow page
- [Inevitable](https://millionrounds.com/podcasts/inevitable) 30 Nov 2023 · 55 min Upcycling Textile Waste with Circ Apple PodcastsShow page

## Quick answers about Breakthrough Energy

### What does Breakthrough Energy invest in?

Breakthrough Energy invests most often at Venture and Series A (53% of the rounds on record), in sectors such as Smartgrids, Grid and Co2.

### How active is Breakthrough Energy?

150 investments on record, 50 of them in the last 12 months, and it led 6. The most recent was in Oct 2026.

### What has Breakthrough Energy invested in recently?

Its most recent investments on record: Kodama (Seed, Oct 2026), ArkeaBio (Series A, Sept 2026) and Hertha Metals (Debt, Sept 2026).

### How big are Breakthrough Energy's cheques?

The median round it joins is $28M. It says it writes cheques of $500K to $50M.

### Does Breakthrough Energy lead rounds?

Sometimes: it led 6 of its 150 investments on record (4%).

### Where does Breakthrough Energy invest?

Most of the companies it backs are in the United States (73%), Canada (8%) and the United Kingdom (5%).

### Is Breakthrough Energy investing now?

Yes: it is actively investing, with 50 investments in the last 12 months.

### Who does Breakthrough Energy invest alongside?

Most often Lowercarbon Capital (15 rounds together), National Science Foundation (11 rounds together) and US Department of Energy (11 rounds together).

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