Climate Intervention Startups contains 12 companies across
3 categories.
Startups developing technologies that deliberately alter weather or climate conditions to reduce specific environmental risks.
Local Weather Event Intervention
Technologies that alter a specific weather event or local atmospheric condition to produce a measurable outcome.
Recast Systems
Website: recastsystems.com
Recast Systems builds sensing, modeling, and operational infrastructure for weather modification, with a focus on cloud seeding and other local weather intervention systems. ([recastsystems.com](https://www.recastsystems.com/?utm_source=openai))
Category: Local Weather Event Intervention.
Funding stage: Seed.
Founded: 2024.
Country: United States.
Employees: 2-10.
Landscape fit: It fits because the company explicitly says it is building technology to modify weather and improve precipitation targeting for cloud seeding and other local atmospheric interventions. ([recastsystems.com](https://www.recastsystems.com/join-us?utm_source=openai))
Funding rounds
-
seed
announced 2026-01-01
; investors: Climate Capital, Asylum Ventures
; source: CB Insights company profile
; https://www.cbinsights.com/company/recast-systems
Company timeline
-
2026-08-21:
Small team on LinkedIn
(hr)
. Recast’s LinkedIn company page lists the team at 2 to 10 employees.
Source: Recast Systems LinkedIn company page.
https://www.linkedin.com/company/recastsystems
-
2026-08-21:
Product snapshot
(product)
. Recast Systems provides sensing, modeling, and operational infrastructure for weather modification. The company says its first product is precise weather modification and that it works across atmospheric science, software, hardware, and biology.
Source: Recast Systems.
https://www.recastsystems.com
-
2026-08-12:
Recast emerges from stealth
(product)
. Recast publicly introduced its precision weather modification system and described a stack built from proprietary seeding materials, sensors, and AI weather models.
Source: Recast emerges from stealth.
https://www.prnewswire.com/news-releases/recast-emerges-from-stealth-with-precision-weather-modification-technology-to-give-communities-real-control-over-weather-outcomes-302849123.html
-
2026-08-01:
Open roles span core functions
(hr)
. Recast is actively recruiting for biology, electrical engineering, mechanical engineering, machine learning, and operations roles.
Source: Recast Systems careers pages.
https://www.recastsystems.com/join-us
-
2026-08-01:
Government cloud seeding operations scale
(gtm)
. Recast said it had operated more than 100 cloud seeding flights for government partners in Texas and New Mexico over the previous six months.
Source: Recast Systems LinkedIn company page.
https://www.linkedin.com/company/recastsystems
-
2026-01-01:
Undisclosed seed
(funding)
. Amount undisclosed. Investors: Climate Capital, Asylum Ventures
Source: CB Insights company profile.
https://www.cbinsights.com/company/recast-systems
Rainmaker
Website: rainmaker.com
Rainmaker is a California based cloud seeding company that uses drones, radar, and weather modeling to increase local precipitation and address water scarcity. ([rainmaker.com](https://www.rainmaker.com/?utm_source=openai))
Category: Local Weather Event Intervention.
Funding stage: Series A.
Founded: 2023.
Country: United States.
Employees: undisclosed.
Landscape fit: It fits local weather event intervention because it directly modifies existing clouds to produce measurable precipitation changes at the local level. ([rainmaker.com](https://www.rainmaker.com/faq?utm_source=openai))
Funding rounds
-
series A
announced 2025-05-05
: 25000000 USD
; investors: Lowercarbon Capital
; source: Axios
; https://www.axios.com/pro/climate-deals/2025/05/05/rainmaker-25m-cloud-seeding-drones
-
seed
announced 2024-05-07
: 6300000 USD
; investors: Long Journey Ventures, Day One Ventures, Tamarack Global, 1517 Fund, Starship VC, Champion Hill Ventures, Garry Tan, Balaji Srinivasan
; source: Fortune
; https://fortune.com/2024/05/07/cloud-seeding-startup-rainmaker-raises-6-million
Company timeline
-
2026-08-21:
Rainmaker opens many roles
(hr)
. Rainmaker's public jobs board shows active openings across engineering, science, operations, regulatory, and business development roles.
Source: Rainmaker Technology Corporation jobs.
https://jobs.lever.co/make-rain?location=El+Segundo%2C+CA
-
2026-08-21:
Product snapshot
(product)
. Rainmaker offers a drone based cloud seeding system for precipitation enhancement. The current product surface includes forecasting and nowcasting, UAV based seeding, radar and satellite validation, and weather modeling for water agencies and other infrastructure users.
Source: Rainmaker.
https://www.rainmaker.com
-
2026-08-06:
Rainmaker launches fellows program
(hr)
. Rainmaker announced a three month fellows program for researchers, engineers, and technical practitioners in weather modification.
Source: Rainmaker Blog.
https://www.rainmaker.com/blog/rainmaker-research-program
-
2026-07-21:
Rainmaker appears in Idaho pilot materials
(gtm)
. Idaho Water Resources Board materials name Rainmaker Technology Corporation as the operator for the Bear River Basin interstate cloud seeding pilot project.
Source: Idaho Water Resources Board.
https://idwr.idaho.gov/wp-content/uploads/2026/07/IWRB-Cloud-Seeding-Meeting-No.-1-26-20260721-Meeting-Materials.pdf
-
2026-04-27:
Rainmaker reports validated seeding
(product)
. Rainmaker said its 2026 Oregon and Utah operations produced 143 million gallons of precipitation and 82 unambiguous seeding signatures.
Source: Rainmaker Technology Corporation.
https://www.prnewswire.com/news-releases/rainmakers-cloud-seeding-breakthrough-first-ever-proof-of-manmade-precipitation-143m-gallons-for-oregon--utah-302753784.html
-
2026-01-01:
Rainmaker joins SNOWSCAPE
(product)
. Rainmaker said it will participate in the SNOWSCAPE field campaign with named research institutions in 2026.
Source: Rainmaker Research.
https://www.rainmaker.com/research
Cloud Seeding Technologies
Website: cloud-seeding-technologies.com
Cloud Seeding Technologies sells cloud seeding products, systems, and services for weather modification projects, including aircraft, drones, balloons, flares, and operational support.
Category: Local Weather Event Intervention.
Founded: 2016.
Country: Germany.
Employees: 11-50 employees.
Landscape fit: It fits this category because it works on altering local atmospheric conditions and precipitation through cloud seeding operations and related hardware.
Company timeline
-
2026-08-21:
Product snapshot
(product)
. Cloud Seeding Technologies provides cloud seeding products, systems, and services for weather modification projects worldwide.
Source: About Us.
https://www.cloud-seeding-technologies.com/about-us
-
2026-08-01:
Employee count observation
(hr)
. LinkedIn shows Cloud Seeding Technologies with an estimated employee range of 11 to 50.
Source: Cloud Seeding Technologies | LinkedIn.
https://de.linkedin.com/company/cloud-seeding-technologies
-
2026-08-01:
ETH project uses CST flares
(gtm)
. ETH Zurich's CLOUDLAB project says it uses Cloud Seeding Technologies seeding flares on a UAV for targeted cloud seeding experiments.
Source: ETH Zurich CLOUDLAB.
https://cloudlab.ethz.ch/the-project.html
-
2026-04-01:
Sponsors weather modification meeting
(gtm)
. Cloud Seeding Technologies is listed as a sponsor in the 2026 Weather Modification Association meeting booklet.
Source: WMA Conference Booklet 2026 acknowledgments and sponsors.
https://weathermod.org/wp-content/uploads/2026/04/WMAConfBooklet2026_DIGITAL.pdf
-
2026-03-01:
Remote coordination role posted
(hr)
. Cloud Seeding Technologies posted a remote program coordination assistant role on LinkedIn.
Source: LinkedIn jobs.
https://de.linkedin.com/jobs/view/remote-program-coordination-assistant-at-cloud-seeding-technologies-4383230228
Rain Enhancement Technologies
Website: rainenhancement.com
Rain Enhancement Technologies builds ionization based weather modification systems that aim to increase precipitation from existing weather systems and also explores fog mitigation.
Category: Local Weather Event Intervention.
Funding stage: Public.
Founded: 2022.
Country: United States.
Employees: small.
Landscape fit: It fits this category because it is built around altering local atmospheric conditions to increase rainfall and snowfall under suitable weather conditions.
Funding rounds
-
related_party_debt_to_equity_conversion
announced 2026-06-05
: 4000000 USD
; investors: RHY Management LLC, Harry L. You
; source: SEC exhibit
; https://www.sec.gov/Archives/edgar/data/2028293/000121390026066794/ea029407001ex10-1.htm
-
related_party_credit_facility_amendment
announced 2026-03-31
: 10000000 USD
; investors: RHY Management LLC, Harry L. You
; source: SEC exhibit
; https://www.sec.gov/Archives/edgar/data/2028293/000121390026040466/ea028529101ex10-1.htm
-
debt financing
announced 2026-03-31
: 3000000 USD
; investors: RHY Management LLC
; source: SEC exhibit 10.1
; https://www.sec.gov/Archives/edgar/data/2028293/000121390026040466/ea028529101ex10-1.htm
Company timeline
-
2026-08-21:
Product snapshot
(product)
. Ground based ionization systems for precipitation enhancement, centered on WETA, with related fog mitigation positioning.
Source: Home.
https://rainenhancement.com
-
2026-08-06:
Sign Turkey agreement
(gtm)
. Rain Enhancement Technologies announced an exclusive agreement with UASIT to deploy WETA in Turkey.
Source: company press release.
https://rainenhancement.com/resources
-
2026-08-06:
Turkey deployment agreement signed
(gtm)
. Rain Enhancement Technologies signed an exclusive agreement with UASIT to deploy WETA in Türkiye, starting with a pilot in the Eğirdir Lake Basin.
Source: Rain Enhancement Technologies press release.
https://rainenhancement.com/wp-content/uploads/2026/08/RAIN_UASIT_Turkey_Release_FINAL.pdf
-
2026-08-05:
Business progress webcast announced
(gtm)
. Rain Enhancement Technologies scheduled a webcast to discuss business progress in August 2026.
Source: Rain Enhancement Technologies investor relations.
https://rainenhancement.com/wp-content/uploads/2026/08/RAIN_Earnings-Call_Press-Release_FINAL.pdf
-
2026-08-01:
Present at Colorado conference
(gtm)
. Rain Enhancement Technologies sponsored and exhibited at the Colorado Water Congress summer conference and had its engineering vice president speak on a panel.
Source: LinkedIn company page.
https://www.linkedin.com/company/rain-enhancement-technologies-inc
-
2026-07-30:
Announce AMS studies
(product)
. Rain Enhancement Technologies said it would present four precipitation enhancement studies at the AMS Madison summit.
Source: company press release.
https://rainenhancement.com/resources/july-30-2026-rain-enhancement-technologies-to-present-four-precipitation-enhancement-studies-at-ams-madison-summit
Project Rainmaker
Website: projectrainmaker.com.au
Project Rainmaker develops cloud seeding and weather modification services to increase rainfall and reduce hail damage in targeted parts of Australia.
Category: Local Weather Event Intervention.
Founded: 2023.
Country: Australia.
Employees: 2-10 employees.
Landscape fit: It fits this category because its core product is local weather intervention through cloud seeding to change rainfall and hail outcomes in specific areas.
Company timeline
-
2026-08-21:
Product snapshot
(product)
. Cloud seeding and weather modification services for rainfall enhancement, hail suppression, and flood mitigation.
Source: Project Rainmaker.
https://projectrainmaker.com.au
Meteoric
Website: meteoric.earth
Meteoric is building drones that clear clouds over solar farms to raise power output.
Category: Local Weather Event Intervention.
Funding stage: Seed.
Founded: 2026.
Country: United States.
Employees: 2 to 10.
Landscape fit: It fits local weather event intervention because it aims to alter cloud cover over a specific site to change the weather conditions that affect solar output.
Company timeline
-
2026-08-22:
Product snapshot
(product)
. Meteoric builds drones that clear clouds over utility scale solar farms to increase solar output. The product uses autonomous drones to alter cloud droplets in low and mid altitude clouds without chemicals or new infrastructure.
Source: Meteoric official website.
https://meteoric.earth
-
2026-08-21:
Meteoric launches to solar operators
(gtm)
. Meteoric publicly launched with messaging aimed at utility scale solar plant operators and described a 10 to 30 percent annual generation lift.
Source: Y Combinator launch post.
https://www.ycombinator.com/launches/T1j-meteoric-drones-that-clear-clouds-over-solar-farms-and-ultimately-weaken-hurricanes
-
2026-08-21:
Meteoric launches cloud clearing product
(product)
. Meteoric publicly introduced its drone system for clearing clouds over solar farms. The company said the platform can also be adapted for storms and hurricanes later.
Source: Y Combinator launch post.
https://www.ycombinator.com/launches/T1j-meteoric-drones-that-clear-clouds-over-solar-farms-and-ultimately-weaken-hurricanes
-
2026-08-01:
Meteoric describes its cloud clearing system
(product)
. Meteoric’s website says its drones fly into low and mid altitude clouds to reduce reflectivity and recover sunlight for solar panels.
Source: Meteoric official website.
https://meteoric.earth
-
2026-01-01:
Meteoric shows a small founding team
(hr)
. Public company profiles show Meteoric with the two founders and indicate a very small team.
Source: Y Combinator company profile.
https://www.ycombinator.com/companies/meteoric
Regional Climate Intervention
Technologies designed to change physical climate conditions within a defined region or ecosystem.
OceanTherm
Website: oceantherm.no
OceanTherm develops bubble curtain technology meant to cool surface water and weaken tropical cyclones in a target area.
Category: Regional Climate Intervention.
Funding stage: Seed.
Founded: 2017.
Country: Norway.
Employees: 2-10 employees.
Landscape fit: It fits regional climate intervention because its core idea is to physically alter local ocean conditions to reduce hurricane and typhoon intensity.
Funding rounds
-
government_support
announced 2017-01-01
; investors: Innovation Norway, Research Council of Norway
; source: OceanTherm Our Story
; https://www.oceantherm.no/our-story
Company timeline
-
2026-08-21:
Product snapshot
(product)
. OceanTherm builds bubble curtain systems for tropical cyclone mitigation and provides consulting on related bubble curtain applications. Its stated uses include surface water cooling, plastic collection, noise mitigation, coral reef support, and fish guiding or containment.
Source: OceanTherm | Vital Research on Tropical Cyclone Mitigation.
https://www.oceantherm.no
-
2026-07-01:
Employee count observation
(hr)
. LinkedIn shows OceanTherm as a small team of 2 to 10 employees.
Source: OceanTherm LinkedIn company page.
https://no.linkedin.com/company/oceantherm
-
2023-04-18:
Patent filing for seawater cooling system
(product)
. OceanTherm filed a patent application for an apparatus that cools seawater surfaces with a bubble curtain and names tropical cyclone mitigation as a use case.
Source: Norwegian patent application for seawater cooling apparatus.
https://patents.google.com/patent/NO20230417A1/en
-
2021-01-01:
Virtual proof of concept
(product)
. OceanTherm says SINTEF completed a virtual proof of concept that showed the concept could lower sea surface temperatures in simulation.
Source: How it works.
https://www.oceantherm.no/how-it-works
-
2019-10-01:
Deepwater test in Norway
(product)
. OceanTherm says a pilot project in Norway showed its bubble curtain could bring deep, cold water to the surface and reduce surface temperature by at least 3.5 degrees Celsius.
Source: OceanTherm Our Story.
https://www.oceantherm.no/our-story
-
2017-01-01:
Undisclosed government support
(funding)
. Amount undisclosed. Investors: Innovation Norway, Research Council of Norway
Source: OceanTherm Our Story.
https://www.oceantherm.no/our-story
Real Ice
Website: realice.eco
Real Ice develops low emissions technology to thicken and restore Arctic sea ice through winter field trials and related research.
Category: Regional Climate Intervention.
Founded: 2022.
Country: United Kingdom.
Employees: 2 to 10.
Landscape fit: It fits Regional Climate Intervention because it is building a physical intervention intended to change climate conditions in a specific region, namely Arctic sea ice.
Funding rounds
-
grant
announced 2025-06-02
: 3500000 GBP
; investors: ARIA
; source: ARIA: Re thickening Arctic sea ice
; https://www.aria.org.uk/exploring-climate-cooling-rethickening-arctic-sea-ice
Company timeline
-
2026-08-21:
Product snapshot
(product)
. Real Ice develops ice thickening technology that pumps seawater onto Arctic sea ice in winter field trials. The company is also exploring renewable powered and autonomous deployment concepts for larger scale use.
Source: Home.
https://www.realice.eco
-
2026-05-01:
Field results published
(product)
. Real Ice published a 2026 summary of its Cambridge Bay work that reported thicker ice and brighter ice in the treated areas.
Source: Cambridge repository paper.
https://www.repository.cam.ac.uk/items/46b003c8-e1ee-418ad4c-0b4c95ddb8f1
-
2026-01-01:
Fourth winter field campaign
(product)
. Real Ice said in 2026 that it was completing its fourth winter of small scale Arctic field trials. The company framed the work as an ongoing validation program in Cambridge Bay.
Source: Real Ice about page.
https://www.realice.eco/about
-
2025-06-02:
ARIA grant allocation
(funding)
. ARIA awarded approximately GBP 3.5M to the Real Ice workstream within the wider RASI programme on Arctic sea ice rethickening.
Source: ARIA: Re thickening Arctic sea ice.
https://www.aria.org.uk/exploring-climate-cooling-rethickening-arctic-sea-ice
-
2025-01-01:
Coalition building
(gtm)
. Real Ice said it is building a coalition of governments, organisations, and local communities to develop and deploy its technology at scale.
Source: Real Ice get involved page.
https://www.realice.eco/get-involved
-
2023-02-01:
Director appointed
(hr)
. Andrea Ceccolini was appointed director of Real Ice Development Company Ltd in February 2023.
Source: Andrea Ceccolini officer appointments.
https://find-and-update.company-information.service.gov.uk/officers/r9o6Bwk-HKU_5dLgkRI9ltlPhMc/appointments
Arctic Reflections
Website: arcticreflections.earth
Arctic Reflections develops methods to thicken Arctic sea ice in winter so it reflects more sunlight and melts more slowly in summer.
Category: Regional Climate Intervention.
Founded: 2023.
Country: Netherlands.
Employees: 2 to 10 employees.
Landscape fit: It fits regional climate intervention because its core work is a direct physical intervention on Arctic sea ice within a defined ecosystem.
Funding rounds
-
public grant
announced 2025-05-08
: 3300000 GBP
; investors: ARIA
; source: Arctic Reflections official site
; https://arcticreflections.earth/arctic-reflections-selected-for-uk-public-funding-to-advance-climate-cooling-innovation
-
seed vc
announced 2024-01-26
: 350000 EUR
; investors: UNIIQ
; source: Arctic Reflections official site
; https://arcticreflections.earth/news/uniiq-announces-investment-in-arctic-reflections
-
seed vc
announced 2023-10-13
; investors: CarbonFix
; source: Arctic Reflections Funding archive
; https://arcticreflections.earth/category/funding
Company timeline
-
2026-08-21:
Product snapshot
(product)
. Arctic Reflections develops methods to thicken Arctic sea ice in winter by pumping seawater onto existing ice so it freezes into thicker, more resilient ice that reflects sunlight longer and lasts further into the melt season.
Source: Arctic Reflections home page.
https://arcticreflections.earth
-
2026-08-01:
Advisor joined for research
(hr)
. Arctic Reflections introduced Dr. Geoffrey Evatt as an advisor supporting its sea ice intervention research.
Source: Arctic Reflections official site.
https://arcticreflections.earth/news/in-the-media
-
2026-04-01:
Third field test in Nunavut
(product)
. Arctic Reflections completed its third field test in Qikiqtarjuaq, Nunavut and reported six weeks of measurement work plus a redesigned pumping platform.
Source: Arctic Reflections official site.
https://arcticreflections.earth/news-from-our-third-field-test
-
2025-05-08:
ARIA grant allocation
(funding)
. ARIA awarded approximately GBP 3.3M to the Arctic Reflections workstream within the wider RASI programme on Arctic sea ice rethickening.
Source: Arctic Reflections official site.
https://arcticreflections.earth/arctic-reflections-selected-for-uk-public-funding-to-advance-climate-cooling-innovation
-
2025-05-01:
ARIA project participation
(product)
. Arctic Reflections joined the ARIA funded RASI programme for controlled outdoor experiments on sea ice thickening in Canada.
Source: Arctic Reflections official site.
https://arcticreflections.earth/arctic-reflections-selected-for-uk-public-funding-to-advance-climate-cooling-innovation
-
2025-04-01:
Second field test in Newfoundland
(product)
. Arctic Reflections ran a second field test in Newfoundland and later published a research summary report and Data in Brief article.
Source: Arctic Reflections official site.
https://arcticreflections.earth/now-available-research-summary-report-of-newfoundland-field-test-2025
Ocean Cooling Technology
Website: oceancooling.org
Ocean Cooling Technology develops marine cloud brightening technology to cool targeted ocean regions and reduce climate impacts such as coral bleaching and storm intensity.
Category: Regional Climate Intervention.
Founded: 2003.
Country: United Kingdom.
Employees: unknown.
Landscape fit: It fits regional climate intervention because it is building a physical method to alter local ocean and cloud conditions to reduce heat and climate damage in specific regions.
Company timeline
-
2026-08-21:
Product snapshot
(product)
. Ocean Cooling Technology develops marine cloud brightening systems that use sea salt particles to increase cloud reflectivity and help reduce climate change impacts.
Source: Ocean Cooling Technology.
https://oceancooling.org
-
2024-07-01:
Richard Dietrich joins as director
(hr)
. Richard Dietrich is listed as a director of Ocean Cooling Technology, and Companies House records his appointment on 1 July 2024.
Source: Companies House filing history.
https://find-and-update.company-information.service.gov.uk/company/SC255854/filing-history
-
2024-04-01:
Win Rampen becomes chairman
(hr)
. Win Rampen was appointed chairman of Ocean Cooling Technology in April 2024.
Source: Ocean Cooling Technology People.
https://oceancooling.org/people-2
-
2022-02-01:
Morag Donaldson becomes director
(hr)
. Morag Donaldson was appointed a director of Ocean Cooling Technology in February 2022.
Source: Ocean Cooling Technology People.
https://oceancooling.org/people-2
Global Climate Intervention
Technologies intended to influence global temperature by altering how much solar energy the Earth absorbs.
Stardust Solutions
Website: stardustsolutions.com
Stardust Solutions develops sunlight reflection technology that aims to cool the Earth by reflecting a small fraction of incoming sunlight.
Category: Global Climate Intervention.
Funding stage: Series A.
Founded: 2023.
Country: Israel.
Employees: 11-50.
Landscape fit: It fits Global Climate Intervention because it is building technology meant to change how much solar energy the Earth absorbs in order to reduce warming.
Funding rounds
-
late VC
announced 2025-10-24
: 60000000 USD
; investors: Lowercarbon Capital, Exor, Future Ventures, Never Lift, Starlight Ventures, Nebular Management, Lauder Partners, Attestor, Kindred Capital, Future Positive Capital, Orion Global Advisors, Matt Cohler
; source: Axios
; https://www.axios.com/pro/climate-deals/2025/10/24/lowercarbon-leads-stardusts-60m-raise
-
seed
announced 2024-04-15
: 15000000 USD
; investors: AWZ Ventures, SolarEdge
; source: IVC Data & Insights
; https://www.ivc-online.com/Google-Card?id=e5aa3914-207a-e111-ac59-00155d32a403
Company timeline
-
2026-07-01:
Founder confirmed as CEO
(hr)
. Recent coverage identified Yanai Yedvab as Stardust's CEO and co founder.
Source: Latitude Media.
https://www.latitudemedia.com/news/catalyst-inside-the-most-sophisticated-plan-for-solar-geoengineering
-
2026-06-14:
Particle design paper
(product)
. Stardust published research on composite sub micron particles and described two viable designs for practical stratospheric aerosol injection.
Source: arXiv.
https://arxiv.org/abs/2606.15955
-
2026-05-15:
Particles and monitoring disclosed
(product)
. Stardust publicly revealed more details about its particles, dispersion systems, and monitoring approach.
Source: E&E News.
https://www.eenews.net/articles/a-closely-guarded-plan-to-cool-earth-is-revealed
-
2026-04-02:
Safety requirements paper
(product)
. Stardust published requirements for safe and controllable solar radiation modification and said the work guides its research and development.
Source: arXiv.
https://arxiv.org/abs/2604.02283
-
2025-10-24:
Late vc
(funding)
. Stardust Solutions raised USD 60M in a round led by Lowercarbon Capital, with participation from Exor and several other international investors.
Source: Axios.
https://www.axios.com/pro/climate-deals/2025/10/24/lowercarbon-leads-stardusts-60m-raise
-
2024-04-15:
Seed
(funding)
. Stardust Solutions raised USD 15M in seed funding from AWZ Ventures and SolarEdge.
Source: IVC Data & Insights.
https://www.ivc-online.com/Google-Card?id=e5aa3914-207a-e111-ac59-00155d32a403
Make Sunsets
Website: makesunsets.com
Make Sunsets deploys balloons that release sulfur dioxide into the stratosphere to create reflective particles that cool the Earth.
Category: Global Climate Intervention.
Funding stage: Seed.
Founded: 2022.
Country: United States.
Employees: 2 to 5.
Landscape fit: It fits this category because its core product is solar radiation modification, which is intended to influence global temperature by reducing the amount of solar energy the Earth absorbs.
Funding rounds
-
seed
announced 2023-05-05
; investors: Draper Associates
; source: CB Insights
; https://www.cbinsights.com/company/make-sunsets/financials
-
pre_seed
announced 2022-10-31
: 720000 USD
; investors: Boost VC, Pioneer Fund, Angel investor
; source: Monthly update on starting the company
; https://makesunsets.com/blogs/news/make-sunsets-monthly-starting-up
Company timeline
-
2026-08-21:
Product snapshot
(product)
. Make Sunsets sells Cooling Credits for confirmed sulfur dioxide releases into the stratosphere. Its storefront also includes subscriptions, DIY launch kits, merch bundles, and a cloud chamber product.
Source: Cooling Credit subscriptions page.
https://makesunsets.com/pages/subscriptions
-
2026-07-01:
Revenue and customer traction continued
(gtm)
. The company reported $9,708 in revenue and said targeted ads were showing strong early signs.
Source: Make Sunsets Monthly: Flying Things.
https://makesunsets.com/blogs/news/make-sunsets-monthly-flying-things
-
2026-05-01:
Website pricing simplified
(product)
. The company simplified storefront pricing so Cooling Credits cost one dollar each, including a subscription option.
Source: Make Sunsets Monthly: Changing Weather.
https://makesunsets.com/blogs/news/make-sunsets-monthly-changing-weather
-
2026-04-07:
Europe street campaign started
(gtm)
. The company said it had started a Europe street campaign and expected meaningful sales by the end of summer.
Source: Make Sunsets Monthly: Cool Zine.
https://makesunsets.com/blogs/news/make-sunsets-monthly-cool-zine
-
2026-04-07:
Cloud chamber product appeared for sale
(product)
. The company said a cloud chamber would be documented and available for sale.
Source: Make Sunsets Monthly: Cool Zine.
https://makesunsets.com/blogs/news/make-sunsets-monthly-cool-zine
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2026-02-05:
Revenue and customer growth
(gtm)
. The company reported $10,729 in monthly revenue and said it had sold to more than 1,000 customers.
Source: Hiring update with revenue and customer count.
https://makesunsets.com/blogs/news/make-sunsets-monthly-hiring-kinda
