# Energy startup funding, October 2026: ASI's $325M Series C leads 33 rounds > We read 33 equity rounds in Energy announced in October 2026, raising $1.3B between them: 5% of all the rounds we read that month and 2% of the money. Source: https://millionrounds.com/news/monthly/2026-10/sector/energy (Millionrounds; every figure on the page links to its filing or article) Equity rounds **33** in Energy, 29 with an amount Raised **$1.3B** across those rounds Lead named **76%** of rounds say who led Share of the month **5%** of rounds; 2% of the money ## The biggest rounds - [1 **ASI** Series C · United States · led by Spark Capital **$325M**](https://millionrounds.com/company/asi) - [2 **Voltus** Series D · United States · led by Generation Investment Management, ACTivate Capital **$225M**](https://millionrounds.com/company/voltus) - [3 **Group14 Technologies** Series D · United States **$169M**](https://millionrounds.com/company/group14-technologies) - [4 **VEIR** Series C · United States · led by Matter Venture Partners, Tyche Partners **$110M**](https://millionrounds.com/company/veir) - [5 **Peak Energy** Series B · United States · led by GM Ventures **$108M**](https://millionrounds.com/company/peak-energy) - [6 **Skeleton Technologies** Growth · Estonia · led by Siemens **$100M**](https://millionrounds.com/company/skeleton-technologies) - [7 **Rabot Energy** Series B · Germany · led by Endeit Capital, DTCF **$50M**](https://millionrounds.com/company/rabot-energy) - [8 **Optivolt** Series A · United States · led by VXI Capital **$32M**](https://millionrounds.com/company/optivolt) - [9 **Emvolon** Series A · United States **$22M**](https://millionrounds.com/company/emvolon) - [10 **Helical Fusion** Series B · Japan **$20M**](https://millionrounds.com/company/helical-fusion) ## Day by day Equity rounds in Energy announced each day of October. The busiest day was 20 October, with 4. 1 October 31 October ## By stage, against the year Each stage's median this month beside its twelve-month median: the sector's own where we hold enough rounds for a benchmark, otherwise the one across all sectors. [Pre-seed](https://millionrounds.com/benchmarks/pre-seed) *6* **$3.0M** this month **$2.0M** 12 months, all sectors [Seed](https://millionrounds.com/benchmarks/seed/energy) *9* **$6.3M** this month **$5.0M** 12 months here [Series A](https://millionrounds.com/benchmarks/series-a/energy) *7* **$17M** this month **$26M** 12 months here [Series B](https://millionrounds.com/benchmarks/series-b) *3* **$50M** this month **$50M** 12 months, all sectors [Series C](https://millionrounds.com/benchmarks/series-c) *4* **$65M** this month **$100M** 12 months, all sectors [Series D](https://millionrounds.com/benchmarks/series-d) *2* **$197M** this month **$150M** 12 months, all sectors [Growth](https://millionrounds.com/benchmarks/growth) *2* **$100M** this month **$113M** 12 months, all sectors ## Where - [United States](https://millionrounds.com/news/monthly/2026-10/united-states) **16** - Australia **2** - Germany **2** - [France](https://millionrounds.com/news/monthly/2026-10/france) **2** - [United Kingdom](https://millionrounds.com/news/monthly/2026-10/united-kingdom) **2** - [Japan](https://millionrounds.com/news/monthly/2026-10/japan) **2** - Austria **1** - Norway **1** United States had the most Energy rounds this month. ## Against the month - Rounds, Energy **33** - Rounds, all sectors **733** - Raised, Energy **$1.3B** - Raised, all sectors **$59B** [The whole of October 2026](https://millionrounds.com/news/monthly/2026-10) ## Other sectors in October [411 rounds **AI** *→*](https://millionrounds.com/news/monthly/2026-10/sector/ai)[100 rounds **Fintech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/fintech)[72 rounds **Healthcare** *→*](https://millionrounds.com/news/monthly/2026-10/sector/healthcare)[67 rounds **Software** *→*](https://millionrounds.com/news/monthly/2026-10/sector/software)[67 rounds **Robotics** *→*](https://millionrounds.com/news/monthly/2026-10/sector/robotics)[56 rounds **Manufacturing** *→*](https://millionrounds.com/news/monthly/2026-10/sector/manufacturing)[44 rounds **SaaS** *→*](https://millionrounds.com/news/monthly/2026-10/sector/saas)[44 rounds **Construction** *→*](https://millionrounds.com/news/monthly/2026-10/sector/construction)[42 rounds **Hardware & Electronics** *→*](https://millionrounds.com/news/monthly/2026-10/sector/hardware)[41 rounds **Biotech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/biotech)[34 rounds **Big Data & Analytics** *→*](https://millionrounds.com/news/monthly/2026-10/sector/big-data)[33 rounds **Logistics** *→*](https://millionrounds.com/news/monthly/2026-10/sector/logistics)[32 rounds **Enterprise Software** *→*](https://millionrounds.com/news/monthly/2026-10/sector/enterprise-software)[29 rounds **Aerospace & Space** *→*](https://millionrounds.com/news/monthly/2026-10/sector/aerospace)[29 rounds **Healthtech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/healthtech)[28 rounds **Cybersecurity** *→*](https://millionrounds.com/news/monthly/2026-10/sector/cybersecurity)[26 rounds **Defence Tech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/defensetech)[25 rounds **Cloud** *→*](https://millionrounds.com/news/monthly/2026-10/sector/cloud)[24 rounds **Entertainment** *→*](https://millionrounds.com/news/monthly/2026-10/sector/entertainment)[23 rounds **B2C** *→*](https://millionrounds.com/news/monthly/2026-10/sector/b2c)[23 rounds **Financial Services** *→*](https://millionrounds.com/news/monthly/2026-10/sector/financial-services)[22 rounds **Medical Devices** *→*](https://millionrounds.com/news/monthly/2026-10/sector/medical-device)[20 rounds **Cleantech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/cleantech)[19 rounds **E-commerce** *→*](https://millionrounds.com/news/monthly/2026-10/sector/ecommerce)[19 rounds **Food & Beverage** *→*](https://millionrounds.com/news/monthly/2026-10/sector/food-beverage)[18 rounds **Real Estate** *→*](https://millionrounds.com/news/monthly/2026-10/sector/real-estate)[18 rounds **Deeptech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/deeptech)[18 rounds **Semiconductors** *→*](https://millionrounds.com/news/monthly/2026-10/sector/semiconductors)[17 rounds **Agtech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/agtech)[16 rounds **Developer Tools** *→*](https://millionrounds.com/news/monthly/2026-10/sector/developer-tools)[15 rounds **Web3 & Crypto** *→*](https://millionrounds.com/news/monthly/2026-10/sector/web3)[15 rounds **Retail** *→*](https://millionrounds.com/news/monthly/2026-10/sector/retail)[15 rounds **Martech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/martech)[14 rounds **Supply Chain** *→*](https://millionrounds.com/news/monthly/2026-10/sector/supply-chain)[14 rounds **Insurtech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/insurtech)[14 rounds **Telecoms** *→*](https://millionrounds.com/news/monthly/2026-10/sector/telecom)[14 rounds **Climate Tech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/climate)[13 rounds **Regtech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/regtech)[13 rounds **Automotive & EVs** *→*](https://millionrounds.com/news/monthly/2026-10/sector/automotive)[13 rounds **Chemicals & Materials** *→*](https://millionrounds.com/news/monthly/2026-10/sector/chemicals)[12 rounds **Future of Work** *→*](https://millionrounds.com/news/monthly/2026-10/sector/future-of-work)[12 rounds **B2B** *→*](https://millionrounds.com/news/monthly/2026-10/sector/b2b)[12 rounds **Media** *→*](https://millionrounds.com/news/monthly/2026-10/sector/media)[12 rounds **Gaming** *→*](https://millionrounds.com/news/monthly/2026-10/sector/gaming)[11 rounds **Professional Services** *→*](https://millionrounds.com/news/monthly/2026-10/sector/consulting)[11 rounds **Marketplaces** *→*](https://millionrounds.com/news/monthly/2026-10/sector/marketplace)[11 rounds **HR Tech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/hrtech)[11 rounds **Education** *→*](https://millionrounds.com/news/monthly/2026-10/sector/education)[11 rounds **Salestech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/salestech)[10 rounds **Proptech** *→*](https://millionrounds.com/news/monthly/2026-10/sector/proptech)[10 rounds **Pharma** *→*](https://millionrounds.com/news/monthly/2026-10/sector/pharma)[10 rounds **Fashion** *→*](https://millionrounds.com/news/monthly/2026-10/sector/fashion)[10 rounds **Travel & Hospitality** *→*](https://millionrounds.com/news/monthly/2026-10/sector/traveltech) **How this roundup is made** It is written from the rounds we read that month in named articles and filings, by the sectors we file each company under; a company can sit in more than one, so sector roundups overlap. Only equity rounds with a stage count; debt, grants and public companies' raises do not. Each sector with 10 or more equity rounds in a month gets its own roundup. We read more sources every month, so compare medians, not totals. [How we read rounds](https://millionrounds.com/methodology) · [Report a mistake](https://millionrounds.com/corrections)