You asked about Climate
166 people built something like it. 27 are gone.
That is 18% of the ones whose fate we could settle, against 23% across the whole register. 17 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2014-01-01 | YCCruise Self-driving cars. · getcruise.com | acquired |
| 2021-01-01 | Mobile Energy Storage Technology · moxionpower.com | gone |
| 2018-01-01 | YCAerones Robotics for wind turbine maintenance. · aerones.com | still up |
| 2015-06-01 | YCOolu Oolu is one of the fastest growing off-grid solar firms in West Africa · oolusolar.com | acquired |
| 2015-01-01 | YCZeitview Inspection software for renewable energy & sustainable infrastructure · zeitview.com | still up |
| 2017-01-01 | YCSolugen Decarbonizing the chemicals industry. · solugen.com | still up |
| 2020-06-01 | YCStatiq. India's Largest EV charging network · statiq.in | still up |
| 2022-01-01 | YCRemi Simplifying roofing for homeowners, roofers and enterprises. · remihq.com | still up |
| 2014-06-01 | Building the world's first fusion power plant · helionenergy.com | still up |
| 2021-01-01 | YCGridware Protecting the grid today, preparing the grid for tomorrow · gridware.io | still up |
| 2022-06-17 | climatechangetracker.org | still up |
| 2017-01-01 | YCBuyPower Modern bill payment platform for African businesses and consumers. · buypower.ng | still up |
| 2016-06-01 | YCValidere A carbon MRV solution for energy and hard-to-abate sectors · validere.com | still up |
| 2018-06-01 | Building a world where alternative proteins are no longer alternative. · gfi.org | still up |
| 2018-06-01 | YCCuldesac We build cities for people, not cars. · culdesac.com | still up |
| 2015-01-01 | YCBright Sunrun for the developing world · thinkbright.mx | still up |
| 2017-06-01 | Turning food waste into Biochar to remove CO2 from the atmsophere · releaf.africa | still up |
| 2023-03-11 | meetinglocationcalculator.com | unverified |
| 2019-01-01 | YCPachama Restoring nature to solve climate change. · pachama.com | acquired |
| 2016-01-01 | To make food a renewable resource, for everyone · inevitabletech.com | gone |
| 2017-06-01 | YCPyka Autonomous electric airplanes · flypyka.com | still up |
| 2016-06-01 | Raptor Maps builds software to manage the solar PV lifecycle. · raptormaps.com | still up |
| 2021-01-01 | YCEnode Energy Orchestration Platform · enode.com | still up |
| 2021-06-01 | Home electrification at $0 upfront cost · solarmente.es | gone |
| 2023-01-01 | YCRUUF Managed marketplace for solar in Latam · ruuf.cl | still up |
| 2017-06-01 | Cheese and dairy products from plant-derived dairy proteins · nobellfoods.com | still up |
| 2021-01-01 | The lightest electric aircraft motors in the world. · h3x.tech | still up |
| 2016-01-01 | YCLygos Lygos (W16) built and commercialized sustainable, high-performance… · lygos.com | still up |
| 2021-01-01 | YCAlbedo Full-stack VLEO satellite missions · albedo.com | still up |
| 2019-01-01 | Heart makes electric airplanes with an all-electric range of 250 miles · heartaerospace.com | still up |
| 2014-06-01 | YCOklo Emission free, always on power from advanced fission power plants. · oklo.com | acquired |
| 2022-06-01 | YCHedgehog Building robotic mushroom farms · hedgehogfoods.com | still up |
| 2020-01-01 | YCSINAI Enterprise software to quantify cost-effective decarbonization… · sinai.com | still up |
| 2022-06-01 | YCPaces Agentic AI for Power Projects and AI Infrastructure · paces.com | still up |
| 2019-01-01 | YCAmpUp We make EV charging as simple and reliable as LED lights · ampup.io | still up |
| 2021-01-01 | Juicy marbles makes thick juicy and marbled plant based steaks. · juicymarbles.com | still up |
| 2021-01-01 | The fastest and easiest way to make home upgrades · homebreeze.ai | gone |
| 2015-06-01 | YCReach Long range, wireless energy distribution that scales · reachpower.com | still up |
| 2021-01-01 | YCRemora Modular carbon capture · remoracarbon.com | still up |
| 2017-06-01 | Sunfolding builds next generation infrastructure for solar farms. By… · sunfolding.com | gone |
| 2023-04-21 | usebend.com | unverified |
| 2022-01-01 | Enterprise software for companies to track & reduce their carbon… · unravelcarbon.com | still up |
| 2021-01-01 | YCREGENT All-electric seagliders for fast, affordable regional transportation · regentcraft.com | still up |
| 2020-01-01 | maximizing biomass on low quality land · livingcarbon.com | still up |
| 2023-06-01 | YCHyLight Unmanned airships for inspecting our critical assets · hylight.aero | still up |
| 2018-06-01 | Next-gen ingredients to decarbonize consumer products, starting w/… · c16bio.com | still up |
| 2023-12-20 | climatetriage.com | still up |
| 2021-06-01 | YCAbatable Carbon markets platform and solutions · abatable.com | still up |
| 2020-06-01 | We make unmakeable proteins with radical advanced biomanufacturing. · futurefields.io | still up |
| 2021-06-01 | YCPerfekto Grocery subscription service against food waste in Latam · perfekto.mx | gone |
| 2020-06-01 | Predictive battery management software for electrified fleets · zitara.com | still up |
| 2022-01-01 | Unlocking carbon markets for European forest owners · pina.earth | acquired |
| 2020-01-01 | Makes guilt-free plastics from food waste · genecis.co | still up |
| 2022-01-01 | YCWyvern High-res hyperspectral pictures of Earth from space · wyvern.space | still up |
| 2019-01-01 | We use solar and wind power to make zero net carbon electrofuels · prometheusfuels.com | still up |
| 2014-01-01 | Enabling li-ion batteries to charge ultra fast without compromising… · gbatteries.com | still up |
| 2021-06-01 | Robots that build solar farms · chargerobotics.com | still up |
| 2017-06-01 | YCAdvano Advano is a battery technology company that improve the longevity of… · advano.io | still up |
| 2022-01-01 | Software to prevent downtime in a solar plant · smarthelio.com | still up |
| 2022-01-01 | YCKorrAI Traceable AI for billion-dollar infrastructure. · korrai.com | still up |
How this compares
Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.
Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.