Tagged: cleantech
30 results
SensorFlow
SensorFlow is a Singapore-based proptech company that uses wireless IoT sensors and AI to help hotels monitor, analyze and automate their energy use - primarily air-conditioning. Its retrofit-ready hardware installs in minutes with no upfront cost and typically cuts HVAC energy consumption by around 30%, letting properties lower operating costs and carbon emissions while keeping guest rooms comfortable. Founded in 2016 and backed by investors including Openspace Ventures and Gaw Capital, the company serves hospitality brands across Asia-Pacific and beyond.
6K
6K is a North Andover, Massachusetts advanced materials company that uses its proprietary UniMelt microwave plasma technology - which reaches roughly 6,000 degrees, hence the name - to produce battery cathode materials and additive-manufacturing metal powders faster, cleaner, and with fewer processing steps than conventional methods. Spun out of research at MIT and the University of Connecticut, the company operates through two divisions, 6K Energy (battery cathode active materials) and 6K Additive (sustainably sourced metal powders), and is building a domestic U.S. supply chain for critical materials backed by federal grants and more than $348 million in venture funding.
Bryce Jones
Bryce Jones is the CEO and co-founder of Flash Forest, a Toronto-based cleantech startup that uses autonomous drones, AI, GIS mapping and biodegradable seed pods to replant forests faster and more cheaply than traditional hand-planting. A former tree planter and biology graduate from British Columbia, Jones launched Flash Forest in 2019 after seeing how far reforestation methods lagged behind industrial logging technology. The company's stated goal is to plant one billion trees by 2028, with a focus on land that is unsafe or uneconomical for human crews, including post-wildfire terrain.
Allonnia
Allonnia is a Boston-based environmental biotechnology company that uses biology and engineered systems to solve stubborn contamination and resource-recovery problems. Spun out of Ginkgo Bioworks' Ferment Consortium in 2020, it removes PFAS from water at scale using SAFF foam-fractionation technology and is commercializing biological methods to recover critical minerals and rare earth elements from ore. The company has raised more than $100 million to bring 'bio-ingenuity' to water treatment and mining.
Arduro
Arduro is a Pennsylvania-based recovered materials company that uses a patented, low-temperature chemical devulcanization process to reclaim high-quality carbon black, rubber and silica from end-of-life tires and industrial rubber waste. Its process breaks the sulfur cross-links in vulcanized rubber without cutting the carbon-carbon polymer backbone, letting manufacturers replace virgin raw materials with recovered ones at comparable performance and lower carbon footprint. Its first commercial product, ELDARIX r1000 recovered carbon black, is PAH-compliant and 6PPD-free.
Blue Box Air
Blue Box Air is a Dallas-based cleantech company that restores and maintains commercial HVAC heat-transfer coils using a patented, enzyme-infused bio-treatment process. By cleaning coils from the inside out - with no downtime and no equipment removal - Blue Box improves airflow and heat transfer, cutting building energy consumption and carbon emissions while improving indoor air quality. Its Bio-Automation system keeps coils continuously clean, and the company markets a 'self-cleaning deep coil' that promises far greater heat-transfer surface area than conventional systems.
Blue Current, Inc.
Blue Current is a Hayward, California solid-state battery developer building what it calls a 'silicon-first,' fully dry battery platform. Its Silicon Elastic Composite chemistry ties glass-ceramic electrolyte particles to silicon anode particles with compliant polymers, constraining silicon swelling so high-silicon cells can cycle stably at low pressure without flammable liquids or PFAS. Positioned as a safety-focused, B2B licensing and pilot-manufacturing company, Blue Current targets electric mobility, grid-scale storage, and consumer devices, and closed an $80M+ Series D extension led by Amazon in December 2025.
Emulate Energy
Emulate Energy is a Lund, Sweden cleantech company that builds white-label software turning everyday household devices - EV chargers, heat pumps, home batteries and solar inverters - into a coordinated, grid-ready fleet. Its platform lets utilities, retailers and grid operators connect, control and monetize distributed energy resources: cutting household bills, shaving grid peaks and unlocking flexibility-market revenue without asking customers to change tariffs or behaviour. Founded in 2020 on control-theory research from MIT and Lund University, Emulate runs live programs across Europe and the US.
ePropelled
ePropelled is a New Hampshire-based engineering company that designs intelligent electric motors, motor controllers, starter generators and power-management systems for uncrewed vehicles across air, land and sea. Built on patented magnetics technology - including its Dynamic Torque Switching (eDTS) architecture that reconfigures motor windings on the fly to boost efficiency - the company supplies drone and UAV manufacturers, defense programs and industrial customers with lightweight, high-efficiency propulsion. Founded in 2018 by serial entrepreneur Nick Grewal, ePropelled raised a $15M Series A in 2021 and has grown to roughly 110 employees with operations in the US, UK and India.
Illumine-i
Illumine-i is a power and design engineering firm that provides turnkey engineering support for solar PV, battery storage, EV charging, substations, and grid infrastructure. Founded in 2015 by former Tesla and Sunrun engineers, the company works with EPCs, developers, independent power producers, and lenders - handling everything from preliminary feasibility to construction-ready permit packages, plus independent and owner's engineering. It has engineered more than 3 GW of clean energy across 200,000+ projects and complements its solar roots with construction-focused BIM/VDC and MEPF design services.
Infinitum
Infinitum is an Austin, Texas company reinventing the electric motor. Founded in 2016 by Ben Schuler, it replaced the century-old iron-and-copper stator with a printed circuit board (PCB) stator, producing air core motors that are roughly 50% smaller and lighter, use 66% less copper, and consume about 10% less energy than conventional motors. Its Aircore EC motor system integrates a variable frequency drive and targets HVAC fans and pumps, data center cooling, industrial equipment, power generation and mobility. Backed by more than $385M in funding and partners such as Rockwell Automation, Infinitum was named to Fast Company's 2025 list of the World's 50 Most Innovative Companies, ranking No. 1 in energy.
Modo Energy
Modo Energy is a London-based data and analytics platform that helps investors, developers, lenders and traders value and finance battery storage and other electrification assets. It provides regulated benchmarks, transparent revenue forecasts, expert market research and an AI analyst, turning complex power-market data into investment-grade decisions across markets in Great Britain, Europe, the United States and Australia.
NxLite
NxLite (formerly 3E Nano) makes next-generation, transparent energy-control coatings for glass and lightweight polymers. Spun out of the University of Toronto in 2015, the company's patented nano-thin, low-emissivity and solar-control coatings are air-stable and can be applied to glass, acrylic (PMMA) and polycarbonate, cutting the heat that windows gain or lose. NxLite sells to window and door makers, refrigeration and transportation manufacturers, and building-retrofit customers, and runs a 45,000-square-foot Advanced Innovation & Manufacturing (AIM) Center in Canton, Michigan.
Qnergy
Qnergy is an Ogden, Utah cleantech manufacturer that builds Free Piston Stirling Engine generators to mitigate methane emissions at the source. Its PowerGen systems turn waste methane and other gaseous fuels into reliable, grid-quality remote power - and can destroy methane while doing it - serving oil and gas operators, landfills, livestock farms, and other off-grid sites worldwide. Led by cleantech veteran Ory Zik, the company has deployed thousands of units, abated millions of tonnes of CO2e, and is expanding into landfill gas abatement and voluntary carbon markets.
RanMarine Technology
RanMarine Technology is a Rotterdam-based marine robotics company that builds autonomous, electric aquadrones - led by its flagship WasteShark - to remove floating plastic, debris and biomass from ports, marinas, harbours and inland waterways while collecting water-quality data. Founded in South Africa in 2015 and re-incorporated in the Netherlands, the company sells hardware plus a connected data platform to ports, municipalities, water authorities, facilities firms and NGOs across several continents.
Simplifyber
Simplifyber is a North Carolina biomaterials company reinventing how soft goods are made. Its proprietary natural-fiber liquid, Fybron, is injected into 3D molds to form fabric directly, skipping the spinning, weaving, cutting, and sewing steps of conventional textile production. Founded in 2021 by fashion veteran Maria Intscher-Owrang and Phil Cohen, the company targets fashion, footwear, bags, automotive and aviation interiors, and consumer packaging with a cellulose-based, largely biodegradable alternative to fossil-derived materials. It closed a $12M Series A led by Suzano Ventures in April 2025.
Alex Grant
Alex Grant is the co-founder and CEO of Magrathea, an Oakland-based startup building a new electrolytic process to make magnesium metal from seawater and brine with near-zero carbon emissions. A chemical engineer who previously founded lithium-extraction company Lilac Solutions and modeled battery supply chains at Minviro, Grant started Magrathea in 2022 to reshore US magnesium production. What began as a climate play turned into a national-security one: after Russia's invasion of Ukraine tightened global magnesium supply, Magrathea won a Defense Production Act partnership with the US Department of Defense. He was a Forbes 30 Under 30 honoree in Energy in 2021.
Maria Intscher-Owrang
Maria Intscher-Owrang is the co-founder and CEO of Simplifyber, a Raleigh-area materials startup that molds cellulose-based liquid directly into finished textile and composite parts, eliminating spinning, weaving, cutting and sewing. After more than two decades designing for Vera Wang, Calvin Klein, Dirk Bikkembergs and Alexander McQueen, she left luxury fashion to rebuild manufacturing from the fiber up, landing partnerships with GANNI and Kia and a $12M Series A led by Suzano Ventures.
Enpower Greentech Inc.
Enpower Greentech is a battery maker building the next generation of lithium-metal and solid-state cells. Founded in 2012 by two post-docs from Nobel laureate John Goodenough's lab, the company designs semi-solid, quasi-solid, and all-solid-state batteries with energy densities pushing past 500 Wh/kg. Its cells power industrial drones, eVTOL aircraft, high-altitude pseudo-satellites, and electric vehicles, and it says it has shipped more than 3 million cells across its SWIFT, FLEET, and KOSMOS platforms from facilities in the US, China, Japan, and Germany.
Epic Cleantec
Epic Cleantec is a San Francisco cleantech company that builds onsite water reuse systems for buildings, letting towers and campuses recycle up to 95% of their own wastewater into clean non-potable water, recovered heat energy, and organic soil products. Its OneWater platform installs treatment in the basement so showers, sinks, and laundry water get reused on site instead of flushed to a distant plant. The company got famous for turning recycled building water into commercial beer, and it counts high-rise developers as its core customers.
Leitnium (Formerly YouSolar)
Leitnium, formerly YouSolar, is a Santa Clara-based clean-energy hardware company building the PowerBloc, a modular solar-plus-battery nanogrid that runs on a constant 400-volt DC architecture. Founded in 2010 by physicist Dr. Arnold Leitner, the company sells a plug-and-play private power plant that integrates solar panels, lithium-ion batteries, and optional grid or generator inputs into one intelligent, scalable system. The pitch is simple: give a home or small business its own always-on grid, so the lights never flicker even when the utility goes dark.
Pegasus Solar
Pegasus Solar is a Richmond, California manufacturer of rooftop solar mounting and racking systems designed to make installation faster, cheaper, and more watertight for residential and commercial solar installers. Founded in 2012 by Kai Stephan, the company sells a full catalog of mounts, rails, flashings, and rail-free systems - including its SkipRail and InstaFlash lines - through a distributor and installer network across the U.S. Pegasus emphasizes American manufacturing, durable design, and reducing labor time on the roof, with millions of units shipped and a track record it markets around zero reported roof leaks.
TELO Trucks
TELO Trucks is a San Carlos, California EV startup building the MT1, a compact all-electric pickup that packs the bed length and towing muscle of a mid-size truck into the road footprint of a two-door MINI Cooper. Founded in 2022 by Jason Marks, Forrest North, and designer Yves Behar, the company argues that American trucks got needlessly huge and that cities deserve a five-seat, five-foot-bed pickup that parks anywhere. With 12,000-plus preorders and a $20M Series A backed by Tesla co-founder Marc Tarpenning and Salesforce CEO Marc Benioff, TELO is targeting first deliveries by the end of 2026.
Terrajoule Energy Inc
Terrajoule Energy is a Palo Alto cleantech company building modular, dispatchable solar power stations that deliver clean electricity around the clock without lithium-ion batteries. Its patented Dispatchable Solar Module (DSM) pairs prefabricated Linear Fresnel solar concentrators with a Steam Accumulator Energy Storage (SAES) system - storing energy as pressurized hot water in steel pressure vessels - and reciprocating steam piston engines to turn steam into electricity. The pitch is blunt: store energy in steel and water instead of rare metals, and undercut the cost of PV-plus-battery from day one. Founded by electrical engineer and serial hardware entrepreneur Stephen J. Bisset, Terrajoule raised an $11.5M Series A from NEA and Air Liquide's ALIAD, and was acquired by Environmental Clean Technologies Limited in December 2025.
Nick Grewal
Nick Grewal is the founder, chairman and CEO of ePropelled, a Laconia, New Hampshire company building smart-propulsion and energy-management systems for drones, marine craft, and light electric vehicles. He founded ePropelled in 2018 after selling his previous startup Nashoba Networks to Cisco Systems for roughly $100 million in 1996 and spending two decades as an angel investor in more than 40 high-tech companies. He was inducted into the 2025 Boston Smart Business Dealmakers Hall of Fame.
Michael Foss
Michael Foss is CEO and Chairman of RanMarine Technology, the Rotterdam-based maker of the WasteShark, an autonomous surface drone that eats floating trash out of harbours and canals. A veteran retail and technology CFO/CEO with prior top posts at Sports Authority, Petco and Circuit City, he joined RanMarine as an advisor in 2022, became board chair in 2023, and now leads the company as it pushes its water-cleaning fleet across ports, cities and marinas worldwide.
Nate Owen
Nate Owen is the founder and CEO of Ampion, a Boston-based Public Benefit Corporation that acquires and manages community solar subscribers across the country. He started Ampion in 2014 after two decades running Energy Services Group, the back-office software company he founded in 1996 to serve the newly deregulated electric and gas markets. Under Owen, Ampion has grown to roughly 120 employees, manages about 1.5 GW of community solar capacity, and says it has saved subscribers more than $42 million on their electricity bills.
Nithish Sairam
Nithish Sairam is the co-founder and CEO of Illumine-i, a solar and power-engineering design firm he built after stints at Tesla and NextEra Energy. Under his leadership the bootstrapped firm expanded from a five-person team to roughly 240 engineers across offices in Fremont, Austin, and Chennai, and has been described as the largest independent digital design engineering firm in the residential PV solar sector.
Ory Zik
Ory Zik is the CEO of Qnergy, an Ogden, Utah company that builds maintenance-free Stirling-engine generators used to convert stranded methane at oil, gas, landfill and livestock sites into electricity. A physicist by training with a Ph.D. from the Weizmann Institute, he has spent two decades founding cleantech and scientific-instrument companies, including Heliofocus (concentrated solar), Energy Points (environmental analytics, acquired by Lux Research) and Quantomix (live-cell electron microscopy). He also helped launch Greenpeace's Israel branch and served as scientific director of Israel's National Museum of Science.
Quentin Scrimshire
Quentin 'Q' Scrimshire is the co-founder and CEO of Modo Energy, a London-based B2B SaaS platform that benchmarks and forecasts the performance of grid-scale battery energy storage assets. A Manchester-trained electrical engineer who cut his teeth on offshore wind and gas-fired plants at Centrica before running Kiwi Power's European storage business, he now leads a roughly 80-person team building what he describes as the 'benchmarking and valuation operating system for global electrification.' In December 2025 Modo closed a $33M Series B led by Molten Ventures.