# Cleantech Open Portfolio Map 2026: 82 Startups by Sector > Cleantech Open's portfolio mapped: 82 startups it has backed, in 10 sectors from Cleantech, Energy and Agtech on. Source: https://millionrounds.com/portfolio-maps/cleantech-open-portfolio-map (Millionrounds; every figure on the page links to its filing or article) ## Cleantech 20 - [ElectrIQ Power](https://millionrounds.com/company/electriq-power) - [OxEon Energy](https://millionrounds.com/company/oxeon-energy) - [Barrio Eléctrico](https://millionrounds.com/company/barrio-electrico) - [Ivy Energy](https://millionrounds.com/company/ivy-energy) - [Voltpost](https://millionrounds.com/company/voltpost) - [Littoral Power Systems](https://millionrounds.com/company/littoral-power-systems) - [Ecospears](https://millionrounds.com/company/ecospears) - [RenewWest](https://millionrounds.com/company/renewwest) - [STAC Technology](https://millionrounds.com/company/stac-technology) - [GRAIN Ecosystem](https://millionrounds.com/company/grain-ecosystem) - [Sol Clarity](https://millionrounds.com/company/sol-clarity) - [TechnoCarbon](https://millionrounds.com/company/technocarbon) - [Katz Water Technologies](https://millionrounds.com/company/katz-water-technologies) - [Nativus](https://millionrounds.com/company/nativus) - [Brayfoil Technologies](https://millionrounds.com/company/brayfoil-technologies) - [MicroEra Power](https://millionrounds.com/company/microera-power) - [T-Omega Wind](https://millionrounds.com/company/t-omega-wind) - [*A* AdvanceH20](https://millionrounds.com/company/advanceh20) - [Elateq](https://millionrounds.com/company/elateq) - [Mirai Solar](https://millionrounds.com/company/mirai-solar) ## Energy 18 - [Proof Energy](https://millionrounds.com/company/proof-energy) - [Enzinc](https://millionrounds.com/company/enzinc) - [Sinergy Flow](https://millionrounds.com/company/sinergy-flow) - [Sourcewater](https://millionrounds.com/company/sourcewater) - [RePurpose Energy](https://millionrounds.com/company/repurpose-energy) - [Thiozen](https://millionrounds.com/company/thiozen) - [Switched Source](https://millionrounds.com/company/switched-source) - [Orus Energy](https://millionrounds.com/company/orus-energy) - [Inergy Technology](https://millionrounds.com/company/inergy-technology) - [Pecos Wind Power](https://millionrounds.com/company/pecos-wind-power) - [Helix Power](https://millionrounds.com/company/helix-power) - [Correlate](https://millionrounds.com/company/correlate) - [SolarKal](https://millionrounds.com/company/solarkal) - [TouchLight](https://millionrounds.com/company/touchlight) - [4th State Energies](https://millionrounds.com/company/4th-state-energies) - [Advanced Silicon Group](https://millionrounds.com/company/advanced-silicon-group) - [OXbyEL Technologies](https://millionrounds.com/company/oxbyel-technologies) - [HiT Nano](https://millionrounds.com/company/hit-nano) ## Agtech 9 - [WaterBit](https://millionrounds.com/company/waterbit) - [*AT* Aker Technologies](https://millionrounds.com/company/aker-technologies) - [Clean Valley Bio-filtration Technologies](https://millionrounds.com/company/clean-valley-bio-filtration-technologies) - [Renegade Plastics](https://millionrounds.com/company/renegade-plastics) - [BlueTrace](https://millionrounds.com/company/bluetrace) - [Nutrient Recovery & Upcycling](https://millionrounds.com/company/nutrient-recovery-and-upcycling) - [SimuSolar](https://millionrounds.com/company/simusolar) - [Ecotone Renewables](https://millionrounds.com/company/ecotone-renewables) - [AmebaGone](https://millionrounds.com/company/amebagone) ## Automotive & EVs 7 - [Atlis Motor Vehicles](https://millionrounds.com/company/atlis-motor-vehicles) - [EV Life](https://millionrounds.com/company/ev-life) - [OpConnect](https://millionrounds.com/company/opconnect) - [Actasys](https://millionrounds.com/company/actasys) - [Moon Five Technologies](https://millionrounds.com/company/moon-five-technologies) - [HyperBorean](https://millionrounds.com/company/hyperborean) - [Clean Earth Rovers](https://millionrounds.com/company/clean-earth-rovers) ## Biotech 6 - [Pyran Inc.](https://millionrounds.com/company/pyran-inc) - [Polycarbin](https://millionrounds.com/company/polycarbin) - [Fluid-Screen](https://millionrounds.com/company/fluid-screen) - [*VB* VariFAS Biorenewables](https://millionrounds.com/company/varifas-biorenewables) - [CarbonBridge](https://millionrounds.com/company/carbonbridge) - [AquaRealTime](https://millionrounds.com/company/aquarealtime) ## Chemicals & Materials 5 - [Leeta Materials](https://millionrounds.com/company/leeta-materials) - [Skycool Systems](https://millionrounds.com/company/skycool-systems) - [Radical Plastics](https://millionrounds.com/company/radical-plastics) - [General Engineering and Research](https://millionrounds.com/company/general-engineering-and-research) - [Amatec](https://millionrounds.com/company/amatec) ## Manufacturing 5 - [Verde Technologies](https://millionrounds.com/company/verde-technologies) - [Arculus Solutions](https://millionrounds.com/company/arculus-solutions) - [Tessolar](https://millionrounds.com/company/tessolar) - [Sinovia Technologies](https://millionrounds.com/company/sinovia-technologies) - [*NH* Nano Hydrophobics](https://millionrounds.com/company/nano-hydrophobics) ## AI 4 - [*S* Switch](https://millionrounds.com/company/switch) - [MSBAI](https://millionrounds.com/company/msbai) - [Terrafuse](https://millionrounds.com/company/terrafuse) - [*M* MAXWELLIAN](https://millionrounds.com/company/maxwellian) ## IT Services 4 - [Apis Innovation](https://millionrounds.com/company/apis-innovation) - [Parthian Energy](https://millionrounds.com/company/parthian-energy) - [Teqnizan](https://millionrounds.com/company/teqnizan) - [Medley Thermal](https://millionrounds.com/company/medley-thermal) ## Hardware & Electronics 4 - [Arc Suppression Technologies](https://millionrounds.com/company/arc-suppression-technologies) - [Sensible Photonics](https://millionrounds.com/company/sensible-photonics) - [Andluca](https://millionrounds.com/company/andluca) - [GeoOrbital](https://millionrounds.com/company/geoorbital) ## Segment by segment ### Cleantech 20 startups · $150M raised - [**ElectrIQ Power**](https://millionrounds.com/company/electriq-power) Electriq Power is a provider of smart home battery storage solution for homes and small businesses. United States $51M - [**OxEon Energy**](https://millionrounds.com/company/oxeon-energy) OxEon Energy is a cleantech start-up that works on alternative energy storage, synthetic fuels, and high purity gas production. United States $36M - [**Barrio Eléctrico**](https://millionrounds.com/company/barrio-electrico) Barrio Eléctrico offers residential solar-plus-storage leases, relying on community engagement to support the systems. Puerto Rico $21M - [**Ivy Energy**](https://millionrounds.com/company/ivy-energy) Ivy Energy is a Cleantech brand and multifamily solar billing software platform based in San Diego, California. United States $18M - [**Voltpost**](https://millionrounds.com/company/voltpost) Voltpost transforms lampposts into smart electric vehicle charging stations to make them accessible to people. United States $4.9M - [**Littoral Power Systems**](https://millionrounds.com/company/littoral-power-systems) Littoral Power Systems designs, manufactures, and installs distributed power systems. United States $4.0M - [**Ecospears**](https://millionrounds.com/company/ecospears) ecoSPEARS is a cleantech and environmental technology company founded in 2017, focused on developing sustainable solutions to perm United States $4.0M - [**RenewWest**](https://millionrounds.com/company/renewwest) RenewWest is an environmental services company founded in 2015, focusing on nature-based climate solutions. United States $3.2M ### Energy 18 startups · $55M raised - [**Proof Energy**](https://millionrounds.com/company/proof-energy) We are revolutionizing power generation using readily available renewable fuels. United States $12M - [**Enzinc**](https://millionrounds.com/company/enzinc) Enzinc is an advanced battery developer that offers rechargeable zinc-air batteries. United States $8.3M - [**Sinergy Flow**](https://millionrounds.com/company/sinergy-flow) Sinergy Flow is a Milan-based DeepTech startup founded in 2022, specializing in low-cost, sustainable redox flow batteries (RFBs) Italy $8.3M - [**Sourcewater**](https://millionrounds.com/company/sourcewater) Sourcewater offers the largest online water source, reuse, and disposal database in the upstream energy industry. United States $7.2M - [**RePurpose Energy**](https://millionrounds.com/company/repurpose-energy) RePurpose Energy reuses electric vehicle batteries to create lower-cost, more sustainable "second life" solar energy storage systems. United States $6.3M - [**Thiozen**](https://millionrounds.com/company/thiozen) Thiozen develops novel hydrogen gas production technology designed to reduce greenhouse gases. United States $3.2M - [**Switched Source**](https://millionrounds.com/company/switched-source) Switched Source is a manufacturing company that develops medium-voltage devices to enhance utility operations through automation. United States $2.6M - [**Orus Energy**](https://millionrounds.com/company/orus-energy) Orus Energy leverages the power of AI to unlock potential of electrical flexibility in commercial buildings. France $2.4M ### Agtech 9 startups · $25M raised - [**WaterBit**](https://millionrounds.com/company/waterbit) WaterBit’s automated irrigation solution empowers growers to remotely monitor and control precision irrigation to their crops. United States $11M - [*AT* **Aker Technologies**](https://millionrounds.com/company/aker-technologies) Aker is an agriculture data company providing crop intelligence and in-season analytics. United States $5.0M - [**Clean Valley Bio-filtration Technologies**](https://millionrounds.com/company/clean-valley-bio-filtration-technologies) Clean Valley CIC is a group of entrepreneurs, engineers and environmental scientists with a nature-inspired ideas for Canadian Innovation. Canada $4.0M - [**Renegade Plastics**](https://millionrounds.com/company/renegade-plastics) Renegade Plastics offers an alternative to PVC-coated fabrics for a circular plastics economy in industry and agriculture. United States $2.0M - [**BlueTrace**](https://millionrounds.com/company/bluetrace) BlueTrace is a seafood sales and operations platform that enhances the seafood supply chain by digitizing transactions and ensurin United States $1.3M - [**Nutrient Recovery & Upcycling**](https://millionrounds.com/company/nutrient-recovery-and-upcycling) At NRU, llc we imagine, research, and develop technologies that recover and upcycle low-grade resources into high value products. United States $900K - [**SimuSolar**](https://millionrounds.com/company/simusolar) Simusolar increases rural prosperity by selling and financing productive equipment to farmers and small businesses. United States $250K - [**Ecotone Renewables**](https://millionrounds.com/company/ecotone-renewables) Ecotone Renewables is a Pittsburgh-based public benefit corporation founded in 2019 by engineering students. United States $208K ### Automotive & EVs 7 startups · $61M raised - [**Atlis Motor Vehicles**](https://millionrounds.com/company/atlis-motor-vehicles) Atlis Motor Vehicles is a mobility technology company that designs and develops battery electric trucks and charging stations. United States $30M - [**EV Life**](https://millionrounds.com/company/ev-life) EV Life is a financial technology company based in Folsom, California, founded in 2019. United States $15M - [**OpConnect**](https://millionrounds.com/company/opconnect) OpConnect specializes in EV charging solutions, dedicated to reducing greenhouse gas emissions through transportation electrification. United States $5.3M - [**Actasys**](https://millionrounds.com/company/actasys) Actasys is a development-stage company based in Brooklyn, NY, specializing in advanced hardware and software solutions for sensor United States $5.0M - [**Moon Five Technologies**](https://millionrounds.com/company/moon-five-technologies) Moon Five Technologies is a clean energy startup that develops renter-first EV charging solutions for multifamily buildings. United States $3.7M - [**HyperBorean**](https://millionrounds.com/company/hyperborean) Energy consumption for air conditioning is forecast to surge 3300% by 2100 as developing world incomes rise and urbanization advances. United States $2.1M - [**Clean Earth Rovers**](https://millionrounds.com/company/clean-earth-rovers) We collect trash and water quality data from coastal waters using autonomous drones. United States $100K ### Biotech 6 startups · $13M raised - [**Pyran Inc.**](https://millionrounds.com/company/pyran-inc) Pyran sells renewable chemicals to make environmentally-friendly paint, coatings, adhesives, polyurethanes, degradable films, and plastics. United States $5.4M - [**Polycarbin**](https://millionrounds.com/company/polycarbin) Polycarbin is an environmental services company focused on creating a circular economy for single-use scientific plastics in the b United States $4.2M - [**Fluid-Screen**](https://millionrounds.com/company/fluid-screen) Fluid-Screen is a biotechnology and nanotechnology company founded in 2015 and based in Beverly, Massachusetts. United States $1.3M - [*VB* **VariFAS Biorenewables**](https://millionrounds.com/company/varifas-biorenewables) VariFAS Biorenewables produces bio-based chemicals for the chemical industry. - $809K - [**CarbonBridge**](https://millionrounds.com/company/carbonbridge) CarbonBridge converts methane to methanol using microbes in a proprietary bioreactor. United States $720K - [**AquaRealTime**](https://millionrounds.com/company/aquarealtime) AquaRealTime is an environmental technology company based in Boulder, Colorado, founded in 2018. United States $175K ### Chemicals & Materials 5 startups · $12M raised - [**Leeta Materials**](https://millionrounds.com/company/leeta-materials) Leeta Materials is a materials manufacturing company. United States $5.8M - [**Skycool Systems**](https://millionrounds.com/company/skycool-systems) SkyCool Systems is a cleantech company based in Mountain View, California, founded in 2016. United States $5.0M - [**Radical Plastics**](https://millionrounds.com/company/radical-plastics) Radical Plastics is a radical solution to plastic pollution. United States $1.0M - [**General Engineering and Research**](https://millionrounds.com/company/general-engineering-and-research) General Engineering and Research provides nanoparticle products for polishing the chemical mechanical planarization application. United States $256K - [**Amatec**](https://millionrounds.com/company/amatec) Using High-Density Gypsum to construct more eco-friendly, cheaper, faster built, and stronger houses United States $240K ### Manufacturing 5 startups · $8.4M raised - [**Verde Technologies**](https://millionrounds.com/company/verde-technologies) Verde Technologies specializes in the production of perovskite solar cells that offers thin film and flexible solar panels. United States $3.0M - [**Arculus Solutions**](https://millionrounds.com/company/arculus-solutions) Arculus Solutions is a cleantech company dedicated to enhancing hydrogen transportation through the retrofitting of natural gas in United States $2.0M - [**Tessolar**](https://millionrounds.com/company/tessolar) Tessolar has design innovation to improve solar photovoltaic system performance and reduce installed system costs. - $1.3M - [**Sinovia Technologies**](https://millionrounds.com/company/sinovia-technologies) Sinovia Technologies manufactures flexible printed OLED displays. United States $1.2M - [*NH* **Nano Hydrophobics**](https://millionrounds.com/company/nano-hydrophobics) Nano Hydrophobics offers industrial coatings services. - $910K ### AI 4 startups · $18M raised - [*S* **Switch**](https://millionrounds.com/company/switch) United States $16M - [**MSBAI**](https://millionrounds.com/company/msbai) MSBAI (Techstars '20) develops GURU, a cognitive AI assistant that enables untrained users to run specialized simulation software. United States $822K - [**Terrafuse**](https://millionrounds.com/company/terrafuse) Terrafuse builds AI technology to deliver actionable climate intelligence on the planet. - $750K - [*M* **MAXWELLIAN**](https://millionrounds.com/company/maxwellian) Maxwellian revolutionizes health with chemical-free clinical-grade air and hygiene for commercial buildings and mobility United States $250K ### IT Services 4 startups · $5.9M raised - [**Apis Innovation**](https://millionrounds.com/company/apis-innovation) Apis Innovation is a technology company based in Easton, Pennsylvania, focused on landfill gas management and methane capture. United States $4.5M - [**Parthian Energy**](https://millionrounds.com/company/parthian-energy) Advanced battery systems for the 21st century United States $1.1M - [**Teqnizan**](https://millionrounds.com/company/teqnizan) Teqnizan is a startup based in Minnesota, USA, focused on creating innovative consumer products that merge technology with jewelry. United States $250K - [**Medley Thermal**](https://millionrounds.com/company/medley-thermal) Medley Thermal develops software for switching management between the energy sources optimally without disruption to the supply of steam. - $15K ### Hardware & Electronics 4 startups · $3.4M raised - [**Arc Suppression Technologies**](https://millionrounds.com/company/arc-suppression-technologies) We created, patented, and are marketing a compelling, disruptive, and previously thought impossible solution to the problem of ele United States $1.9M - [**Sensible Photonics**](https://millionrounds.com/company/sensible-photonics) Sensible Photonics is partnering with utilities, OEMs and regulators to improve grid reliability and resilience through low-cost s United States $600K - [**Andluca**](https://millionrounds.com/company/andluca) Andluca designs and develops advanced materials and systems for applications in fenestration and other applications. United States $500K - [**GeoOrbital**](https://millionrounds.com/company/geoorbital) GeoOrbital is a U.S.-based company headquartered in Cambridge, Massachusetts, that specializes in electric wheel systems. United States $395K **How this map is made.** Every startup here has raised money in a round we track that names Cleantech Open as an investor, the first in 2016. Each sits under its main sector, read from its rounds, and each sector shows its best-funded first; sectors with fewer than three companies are left off. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Accelerator · United States **Y Combinator** 2,679 startups · 12 sectors · $111B](https://millionrounds.com/portfolio-maps/y-combinator-portfolio-map)[Accelerator · United States **Plug and Play** 609 startups · 12 sectors · $28B](https://millionrounds.com/portfolio-maps/plug-and-play-portfolio-map)[Accelerator · United States **MassChallenge** 385 startups · 12 sectors · $5.0B](https://millionrounds.com/portfolio-maps/masschallenge-portfolio-map)[Accelerator · United States **Google for Startups** 325 startups · 12 sectors · $3.5B](https://millionrounds.com/portfolio-maps/google-for-startups-portfolio-map)[Accelerator · United States **Neo** 184 startups · 12 sectors · $11B](https://millionrounds.com/portfolio-maps/neo-portfolio-map)[Accelerator · United States **Alchemist Accelerator** 118 startups · 12 sectors · $1.8B](https://millionrounds.com/portfolio-maps/alchemist-accelerator-portfolio-map) ## Raising from investors like Cleantech Open? 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