# Cleantech startup funding, September 2026: Simple Energy's $180M Series C leads 16 rounds > We read 16 equity rounds in Cleantech announced in September 2026, raising $850M between them: 4% of all the rounds we read that month and 2% of the money. Source: https://millionrounds.com/news/monthly/2026-09/sector/cleantech (Millionrounds; every figure on the page links to its filing or article) Equity rounds **16** in Cleantech, 15 with an amount Raised **$850M** across those rounds Lead named **100%** of rounds say who led Share of the month **4%** of rounds; 2% of the money ## The biggest rounds - [1 **Simple Energy** Series C · India · led by Dr. Arokiaswamy Velumani Family Office **$180M**](https://millionrounds.com/company/simple-energy) - [2 H **Hertha Metals** Series A · United States · led by Khosla Ventures, Doerr Capital **$134M**](https://millionrounds.com/company/hertha-metals) - [3 **TAR** Series A · United States · led by Spark Capital **$120M**](https://millionrounds.com/company/tar) - [4 A **AMPIN Energy Transition** Growth · India · led by Climate Investment Fund **$100M**](https://millionrounds.com/company/ampin-energy-transition) - [5 **Kanin Energy** Growth · Canada · led by S2G Investments, Canada Growth Fund **$100M**](https://millionrounds.com/company/kanin-energy) - [6 **Amber Electric** Series E · Australia · led by 1GT, Morgan Stanley Investment Management's 1GT **$56M**](https://millionrounds.com/company/amber-electric) - [7 **Bluecore Energy** Seed · United States · led by Silverton Partners **$50M**](https://millionrounds.com/company/bluecore-energy) - [8 **Light** Series A · United States · led by Matrix **$46M**](https://millionrounds.com/company/light) - [9 **Ultraviolette Automotive** Series E · India · led by TDK Ventures, Yali Capital **$39M**](https://millionrounds.com/company/ultraviolette-automotive) - [10 C **Carrum Mobility** Series B · India · led by Alven **$10M**](https://millionrounds.com/company/carrum-mobility) ## Day by day Equity rounds in Cleantech announced each day of September. The busiest day was 21 September, with 2. 1 September 30 September ## 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) *7* **$4.3M** this month **$5.5M** 12 months, all sectors [Series A](https://millionrounds.com/benchmarks/series-a) *3* **$120M** this month **$20M** 12 months, all sectors [Series B](https://millionrounds.com/benchmarks/series-b) *1* **$10M** this month **$50M** 12 months, all sectors [Series C](https://millionrounds.com/benchmarks/series-c) *1* **$180M** this month **$100M** 12 months, all sectors [Growth](https://millionrounds.com/benchmarks/growth) *2* **$100M** this month **$113M** 12 months, all sectors ## Where - [India](https://millionrounds.com/news/monthly/2026-09/india) **4** - [United States](https://millionrounds.com/news/monthly/2026-09/united-states) **4** - [Canada](https://millionrounds.com/news/monthly/2026-09/canada) **3** - [United Kingdom](https://millionrounds.com/news/monthly/2026-09/united-kingdom) **3** - [Australia](https://millionrounds.com/news/monthly/2026-09/australia) **1** - Sweden **1** India had the most Cleantech rounds this month. ## Against the month - Rounds, Cleantech **16** - Rounds, all sectors **357** - Raised, Cleantech **$850M** - Raised, all sectors **$39B** [The whole of September 2026](https://millionrounds.com/news/monthly/2026-09) ## Other sectors in September [195 rounds **AI** *→*](https://millionrounds.com/news/monthly/2026-09/sector/ai)[51 rounds **Fintech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/fintech)[39 rounds **Healthcare** *→*](https://millionrounds.com/news/monthly/2026-09/sector/healthcare)[30 rounds **Big Data & Analytics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/big-data)[27 rounds **Biotech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/biotech)[25 rounds **Robotics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/robotics)[24 rounds **Cybersecurity** *→*](https://millionrounds.com/news/monthly/2026-09/sector/cybersecurity)[23 rounds **Hardware & Electronics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/hardware)[22 rounds **Enterprise Software** *→*](https://millionrounds.com/news/monthly/2026-09/sector/enterprise-software)[21 rounds **Software** *→*](https://millionrounds.com/news/monthly/2026-09/sector/software)[21 rounds **Energy** *→*](https://millionrounds.com/news/monthly/2026-09/sector/energy)[21 rounds **Construction** *→*](https://millionrounds.com/news/monthly/2026-09/sector/construction)[20 rounds **Healthtech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/healthtech)[20 rounds **SaaS** *→*](https://millionrounds.com/news/monthly/2026-09/sector/saas)[19 rounds **Logistics** *→*](https://millionrounds.com/news/monthly/2026-09/sector/logistics)[17 rounds **Manufacturing** *→*](https://millionrounds.com/news/monthly/2026-09/sector/manufacturing)[14 rounds **Aerospace & Space** *→*](https://millionrounds.com/news/monthly/2026-09/sector/aerospace)[14 rounds **Defence Tech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/defensetech)[13 rounds **Telecoms** *→*](https://millionrounds.com/news/monthly/2026-09/sector/telecom)[13 rounds **Semiconductors** *→*](https://millionrounds.com/news/monthly/2026-09/sector/semiconductors)[13 rounds **Climate Tech** *→*](https://millionrounds.com/news/monthly/2026-09/sector/climate)[11 rounds **Automotive & EVs** *→*](https://millionrounds.com/news/monthly/2026-09/sector/automotive)[10 rounds **Cloud** *→*](https://millionrounds.com/news/monthly/2026-09/sector/cloud) **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)