# Green startups: the climate and clean energy startups that raised most recently

> The green startups (climate, clean energy, batteries, fusion, grid and carbon) that raised most recently, the largest green rounds of the last 12 months and their stages, every amount linked to its announcement.

- URL: https://recentfunding.com/blog/green-startups/
- Published: 2026-10-11
- Updated: 2026-10-26
- Data snapshot: 2026-10-26
- Tags: climate, startups, funding rounds, api
- Publisher: Recent Funding (https://recentfunding.com/)

As of October 26, 2026, Recent Funding tracks 1240 green startups (batteries, fusion, grid software, solar, carbon removal): 142 announced a funding round in the last 90 days and 445 in the last 12 months. The largest green startup round of the last 12 months went to [Base Power](https://recentfunding.com/companies/base-power/) ([$1B](https://fundraisingfox.com/companies/base-power)), ahead of [Commonwealth Fusion Systems](https://recentfunding.com/companies/commonwealth-fusion-systems/) ([$1B](https://www.powermag.com/commonwealth-fusion-systems-raises-another-1-billion-as-work-on-commercial-power-plant-continues/)) and [Valar Atomics](https://recentfunding.com/companies/valar-atomics/) ([$1B](https://techcrunch.com/2026/08/03/sequoias-shaun-maguire-leads-1b-round-for-nuclear-startup-valar-atomics/)).

Counted: companies whose main category is climate and energy. Every amount links to its announcement.

## Green startups that raised in the last 90 days

Newest round first. 62 of the 142 published an amount.

| # | Company | Industry | Stage | Amount | Announced | Source |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | [Zero Industries](https://recentfunding.com/companies/zero-industries/) | energy-climate | pre-seed | [$3M](https://zero.space/news/pre-seed/) | 2026-10-22 | zero.space |
| 2 | [Peak Energy](https://recentfunding.com/companies/peak-energy/) | energy-climate | series-b+ | [$108M](https://www.prnewswire.com/news-releases/peak-energy-raises-108-million-in-new-capital-announces-oversubscribed-series-b-to-scale-next-generation-energy-infrastructure-302914879.html) | 2026-10-21 | prnewswire.com |
| 3 | [Optivolt](https://recentfunding.com/companies/optivolt/) | energy-climate | series-a | [$32M](https://www.techstars.com/blog/startup-spotlight/optivolt-raises-32m-series-a-to-build-the-brain-for-solar-panels) | 2026-10-21 | techstars.com |
| 4 | [Go Eve](https://recentfunding.com/companies/go-eve/) | energy-climate | seed | [$1.01M](https://tech.eu/2026/10/21/go-eve-secures-ps750k-to-advance-its-dockchain-ev-charging-technology/) | 2026-10-21 | tech.eu |
| 5 | [VECKTA](https://recentfunding.com/companies/veckta/) | energy-climate | series-a | [$11M](https://www.finsmes.com/2026/10/veckta-raises-11m-in-series-a-funding.html) | 2026-10-20 | finsmes.com |
| 6 | [Ganiga](https://recentfunding.com/companies/ganiga/) | energy-climate | unknown | [$2.8M](https://tech.eu/2026/10/20/ganiga-secures-eur25m-to-expand-its-ai-powered-food-waste-technology/) | 2026-10-20 | tech.eu |
| 7 | [Linkener](https://recentfunding.com/companies/linkener/) | energy-climate | unknown | [$8.44M](https://capital-riesgo.es/en/articles/linkener-raises-7-5-million-in-a-funding-round-led-by-klima-energy-transition-fund/) | 2026-10-19 | capital-riesgo.es |
| 8 | [Turn2X](https://recentfunding.com/companies/turn2x/) | energy-climate | series-a | [$22.51M](https://www.deutsche-startups.de/2026/10/17/wochenrueckblick-42-2026/) | 2026-10-17 | deutsche-startups.de |
| 9 | [PITIN](https://recentfunding.com/companies/pitin/) | energy-climate | series-a | [$9M](https://en.wowtale.net/2026/10/16/235546/) | 2026-10-16 | en.wowtale.net |
| 10 | [Rabot Charge](https://recentfunding.com/companies/rabot-charge/) | energy-climate | series-b+ | [$50M](https://techfundingnews.com/rabot-energy-raises-50m-series-b-virtual-power-plant-endeit-capital/) | 2026-10-15 | techfundingnews.com |
| 11 | [RX](https://recentfunding.com/companies/rx/) | energy-climate | seed | [$7.6M](https://en.wowtale.net/2026/10/14/235497/) | 2026-10-14 | en.wowtale.net |
| 12 | [1KOMMA5°](https://recentfunding.com/companies/1komma5/) | energy-climate | series-b+ | [$78M](https://mercomcapital.com/1komma5-raises-78-million-for-energy-ai-platform/) | 2026-10-13 | mercomcapital.com |
| 13 | [Switched Source](https://recentfunding.com/companies/switched-source/) | energy-climate | unknown | [$17M](https://pulse2.com/switched-source-raises-more-than-17-million-to-expand-grid-capacity-technology/) | 2026-10-13 | Pulse 2.0 |
| 14 | [Epyr](https://recentfunding.com/companies/epyr/) | energy-climate | pre-seed | [$16.78M](https://tech.eu/2026/10/13/french-startup-epyr-raises-eur15m-following-successful-industrial-heat-storage-deployment/) | 2026-10-13 | tech.eu |
| 15 | [Giraffe Bio](https://recentfunding.com/companies/giraffe-bio/) | energy-climate | seed | [$6.4M](https://www.manilatimes.net/2026/10/13/tmt-newswire/globenewswire/giraffe-bio-raises-64m-seed-to-scale-next-generation-reagents-for-copper-mining/2444823) | 2026-10-13 | manilatimes.net |
| 16 | [Pathways](https://recentfunding.com/companies/pathways/) | energy-climate | seed | [$6M](https://pathwaysai.co/news/seed-announcement) | 2026-10-13 | pathwaysai.co |
| 17 | [Blue Pivot Energy Technology](https://recentfunding.com/companies/blue-pivot-energy-technology/) | energy-climate | seed | [$29.88M](https://eu.36kr.com/en/newsflashes/4022387533385601) | 2026-10-12 | eu.36kr.com |
| 18 | [Subeca](https://recentfunding.com/companies/subeca/) | energy-climate | series-a | [$3M](https://www.finsmes.com/2026/10/subeca-raises-3m-in-series-a-2-funding.html) | 2026-10-12 | finsmes.com |
| 19 | [Voltus](https://recentfunding.com/companies/voltus/) | energy-climate | series-b+ | [$225M](https://www.finsmes.com/2026/10/voltus-raises-225m-in-series-d-funding.html) | 2026-10-09 | finsmes.com |
| 20 | [VEIR](https://recentfunding.com/companies/veir/) | energy-climate | series-b+ | [$110M](https://theaiinsider.tech/2026/10/08/veir-raises-110m-in-series-c-funding-to-scale-superconducting-power-systems-for-ai-data-centers/) | 2026-10-08 | theaiinsider.tech |

The [climate and energy category](https://recentfunding.com/categories/climate-energy/) lists every company in it with its rounds and backers.

## The largest green startup rounds of the last 12 months

| # | Company | Industry | Stage | Amount | Announced | Source |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | [Base Power](https://recentfunding.com/companies/base-power/) | energy-climate | series-b+ | [$1B](https://fundraisingfox.com/companies/base-power) | 2026-08-04 | fundraisingfox.com |
| 2 | [Commonwealth Fusion Systems](https://recentfunding.com/companies/commonwealth-fusion-systems/) | energy-climate | series-b+ | [$1B](https://www.powermag.com/commonwealth-fusion-systems-raises-another-1-billion-as-work-on-commercial-power-plant-continues/) | 2026-07-30 | powermag.com |
| 3 | [Valar Atomics](https://recentfunding.com/companies/valar-atomics/) | energy-climate | series-b+ | [$1B](https://techcrunch.com/2026/08/03/sequoias-shaun-maguire-leads-1b-round-for-nuclear-startup-valar-atomics/) | 2026-08-03 | techcrunch.com |
| 4 | [Maxwell Power](https://recentfunding.com/companies/maxwell-power/) | energy-climate | series-b+ | [$800M](https://www.morningstar.com/news/pr-newswire/20261001la61875/maxwell-power-secures-an-additional-800-million-from-fairtide-partners) | 2026-10-01 | morningstar.com |
| 5 | [Form Energy](https://recentfunding.com/companies/form-energy/) | energy-climate | series-b+ | [$750M](https://pulse2.com/form-energy-raises-750-million-series-g-as-iron-air-battery-backlog-jumps-to-80-gwh/) | 2026-08-12 | Pulse 2.0 |
| 6 | [Redwood Materials](https://recentfunding.com/companies/redwood-materials/) | energy-climate | series-b+ | [$550M](https://news.google.com/rss/articles/CBMirgFBVV95cUxQcVRQMzN0YTZnLUpJU3Vmb2NyYXdyQVFUZ3Jsc1diX1NBZlRmMTU3QjVJMmRHaUFtSl9lQS1jVHhOaFJUMm9sVklJOXE4RmU3QnhLTWd5c3dfVUwxbmVSU25hd2NEb2hJYmg0VVpTTzlHNGtreUgybmtjclR4akpNdFhFWmtSWjlmcW9GdFpRV3V3UUw5TFY5djhpNS13SVlHRkVhRkJKbkV0bVRMc3c?oc=5) | 2026-07-31 | Dealroom |
| 7 | [Proxima Fusion](https://recentfunding.com/companies/proxima-fusion/) | energy-climate | series-a | [$468M](https://fundraisingfox.com/companies/proximafusion) | 2026-07-07 | fundraisingfox.com |
| 8 | [Helion Energy](https://recentfunding.com/companies/helion-energy/) | energy-climate | series-b+ | [$465M](https://fundraisingfox.com/companies/helion-energy) | 2026-06-04 | fundraisingfox.com |
| 9 | [Inertia](https://recentfunding.com/companies/inertia/) | energy-climate | series-a | [$450M](https://fundraisingfox.com/companies/inertia) | 2026-07-17 | fundraisingfox.com |
| 10 | [Antares](https://recentfunding.com/companies/antares/) | energy-climate | series-b+ | [$370M](https://www.finsmes.com/2026/07/antares-raises-470m-in-series-c-funding.html) | 2026-07-27 | finsmes.com |

## Stages

| Stage | Companies |
| --- | --- |
| seed | 225 |
| pre-seed | 78 |
| series-a | 63 |
| series-b+ | 58 |
| unknown | 21 |

`unknown` means the announcement didn't name the stage. Seed and pre-seed rounds in every sector are in [seed stage startups](https://recentfunding.com/blog/seed-stage-startups/) and [pre-seed funding](https://recentfunding.com/blog/pre-seed-funding/); the [most active VC firms](https://recentfunding.com/blog/most-active-vc-firms/) post ranks the investors doing the most deals right now.

```sh
curl -H "Authorization: Bearer $RF_KEY" "https://recentfunding.com/api/v1/companies?industry=energy-climate&sort=announced&limit=50"
```

The same list from the API needs a [free key](https://recentfunding.com/dashboard/?from=blog); the [API docs](https://recentfunding.com/docs/) list every parameter.

## Related on Recent Funding

- [Startup funding data: the last 30 days in charts](https://recentfunding.com/data/)
- [Recently funded startups, updated daily](https://recentfunding.com/)
- [Money flow: raises, acquisitions and new funds](https://recentfunding.com/money-flow/)
- [Get a free API key](https://recentfunding.com/dashboard/?from=blog-related)
- [Startup lead generation: recently funded startups as sales leads](https://recentfunding.com/blog/startup-lead-generation/)
- [AI investors: the VC firms and accelerators backing the most AI startups](https://recentfunding.com/blog/ai-investors/)
- [Game startups: the gaming startups that raised most recently](https://recentfunding.com/blog/game-startups/)
- [Recent Funding API docs](https://recentfunding.com/docs/): every endpoint behind this post; a [free API key](https://recentfunding.com/dashboard/?from=blog-related) takes just an email