# Energy startup funding, June 2026: Maxwell Power's $750M Growth leads 16 rounds > We read 16 equity rounds in Energy announced in June 2026, raising $2.3B between them: 7% of all the rounds we read that month and 7% of the money. Source: https://millionrounds.com/news/monthly/2026-06/sector/energy (Millionrounds; every figure on the page links to its filing or article) Equity rounds **16** in Energy, 15 with an amount Raised **$2.3B** across those rounds Lead named **81%** of rounds say who led Share of the month **7%** of rounds; 7% of the money ## The biggest rounds - [1 **Maxwell Power** Growth · United States · led by Fairtide Partners **$750M**](https://millionrounds.com/company/maxwell-power) - [2 F **Flourish** Growth · United States · led by Google Ventures, Lux Capital **$500M**](https://millionrounds.com/company/flourish) - [3 H **Helion** Growth · United States · led by Thrive Capital **$465M**](https://millionrounds.com/company/helion) - [4 **Focused Energy** Series A · Germany · led by RWE **$240M**](https://millionrounds.com/company/focused-energy) - [5 S **Spiro** Growth **$215M**](https://millionrounds.com/company/spiro) - [6 **Evotrex** Series A · United States **$30M**](https://millionrounds.com/company/evotrex) - [7 e **encosa** Seed · Germany · led by Realyze Ventures **$29M**](https://millionrounds.com/company/encosa) - [8 **Gigaton** Series A · United Kingdom · led by Plural **$26M**](https://millionrounds.com/company/gigaton) - [9 **Anzana Electric Group** Growth · South Africa · led by Convergence Partners Energy Finance **$20M**](https://millionrounds.com/company/anzana-electric-group) - [10 A **Aston Power** Series A · United States · led by TDK Ventures, Building Ventures **$20M**](https://millionrounds.com/company/aston-power) ## Day by day Equity rounds in Energy announced each day of June. The busiest day was 9 June, with 3. 1 June 30 June ## 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. [Seed](https://millionrounds.com/benchmarks/seed/energy) *6* **$7.5M** this month **$5.0M** 12 months here [Series A](https://millionrounds.com/benchmarks/series-a/energy) *4* **$28M** this month **$26M** 12 months here [Growth](https://millionrounds.com/benchmarks/growth) *6* **$465M** this month **$113M** 12 months, all sectors ## The most active leads Firms that led two or more of the month's rounds in Energy. - [**Realyze Ventures** Companion.energy, encosa *2 led*](https://millionrounds.com/fund/realyze-ventures) ## Where - [United States](https://millionrounds.com/news/monthly/2026-06/united-states) **5** - [Germany](https://millionrounds.com/news/monthly/2026-06/germany) **3** - [United Kingdom](https://millionrounds.com/news/monthly/2026-06/united-kingdom) **1** - Mexico **1** - [Netherlands](https://millionrounds.com/news/monthly/2026-06/netherlands) **1** - Norway **1** - Belgium **1** - South Africa **1** United States had the most Energy rounds this month. ## Against the month - Rounds, Energy **16** - Rounds, all sectors **245** - Raised, Energy **$2.3B** - Raised, all sectors **$35B** [The whole of June 2026](https://millionrounds.com/news/monthly/2026-06) ## Other sectors in June [124 rounds **AI** *→*](https://millionrounds.com/news/monthly/2026-06/sector/ai)[39 rounds **Fintech** *→*](https://millionrounds.com/news/monthly/2026-06/sector/fintech)[37 rounds **Healthcare** *→*](https://millionrounds.com/news/monthly/2026-06/sector/healthcare)[24 rounds **Big Data & Analytics** *→*](https://millionrounds.com/news/monthly/2026-06/sector/big-data)[23 rounds **Biotech** *→*](https://millionrounds.com/news/monthly/2026-06/sector/biotech)[20 rounds **Robotics** *→*](https://millionrounds.com/news/monthly/2026-06/sector/robotics)[20 rounds **Enterprise Software** *→*](https://millionrounds.com/news/monthly/2026-06/sector/enterprise-software)[16 rounds **Construction** *→*](https://millionrounds.com/news/monthly/2026-06/sector/construction)[15 rounds **Software** *→*](https://millionrounds.com/news/monthly/2026-06/sector/software)[12 rounds **Financial Services** *→*](https://millionrounds.com/news/monthly/2026-06/sector/financial-services)[11 rounds **Hardware & Electronics** *→*](https://millionrounds.com/news/monthly/2026-06/sector/hardware)[11 rounds **Defence Tech** *→*](https://millionrounds.com/news/monthly/2026-06/sector/defensetech)[11 rounds **Aerospace & Space** *→*](https://millionrounds.com/news/monthly/2026-06/sector/aerospace)[11 rounds **Medical Devices** *→*](https://millionrounds.com/news/monthly/2026-06/sector/medical-device)[11 rounds **Logistics** *→*](https://millionrounds.com/news/monthly/2026-06/sector/logistics)[10 rounds **Manufacturing** *→*](https://millionrounds.com/news/monthly/2026-06/sector/manufacturing) **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)