Cleantech Startups

Bolt.Earth operates India's largest peer-to-peer electric vehicle charging network, with over 100,000 chargers across 2,100+ cities serving 545,000+ active EV users. The company provides smart charging infrastructure for 2, 3, and 4-wheeler EVs with both standard and fast charging options.

2 investors

Borobotics develops an autonomous bore-robot called "Grabowski" for drilling, aimed at accelerating the energy transition. The company applies robotics technology to sustainability and energy-related drilling applications.

2 investors

bound4blue builds wind propulsion systems that serve as an auxiliary power source for ships, helping vessels reduce fuel consumption and emissions. The technology targets shipping operators seeking to lower costs and meet maritime emissions regulations such as EEXI and CII.

2 investors

BoxxDocks provides asset tracking and intelligent automation solutions for B2B logistics and supply chain operations across Europe.

2 investors

Breaking develops engineered microorganisms and enzymes—notably a microbe variant called MICROBE X-32—that biologically degrade many types of plastic waste into organic matter. The company also aims to create new bioplastics, chemical recycling via depolymerization, and biofuels/biomaterials, addressing plastic pollution and remediation.

2 investors

Brightly is a platform that helps organizations measure, verify, and scale food waste reduction and generate high-integrity carbon credits from food rescue and methane prevention. It works with partners ranging from food banks to Fortune 500 companies to turn food waste reduction into carbon revenue and verified Scope 3 emissions reductions.

2 investors

Brimstone develops a patented co-production process ("Rock Refinery") that extracts multiple high-value materials—including cement, supplementary cementitious materials, alumina, and critical minerals—from a single domestically sourced rock. The company targets construction and industrial supply chains, and its future plants aim to also produce aluminum, steel, magnesium, and titanium.

2 investors

Brisil produces green precipitated silica using rice-husk-based technology for use as a reinforcing filler and additive across tires, industrial rubber, footwear, and powdered food products. The company positions its process as lower-cost and higher-quality than conventional precipitated silica production, with pilot-scale and commercial validation.

2 investors

Brown & Root Industrial Services provides engineering, construction, maintenance, turnaround, and specialty services to industrial customers, with a focus on energy transition markets such as biomass, biogas, biodiesel, hydrogen, ammonia, and lithium. The company serves clients moving toward alternative energy and fuel sources.

2 investors

BuildQ combines AI-native software with expert services to speed up execution of capital-intensive infrastructure projects, handling diligence, project tracking, financing support, document and contract review, and blocker resolution. It serves energy, real estate, and data center developers, EPCs, and capital providers by consolidating project documents and workflows into a single source of truth.

2 investors

CABAN provides renewable energy solutions including battery energy storage systems, operations and maintenance services, and cloud-based software for managing energy infrastructure. The company serves telecommunications, data center, commercial, industrial, and healthcare operators globally.

2 investors

Cactos develops energy storage solutions for industrial and sustainable energy infrastructure applications. The company manufactures products with in-house production capabilities including testing and precision welding.

2 investors

Cala makes an intelligent heat pump water heater that adjusts water heating to a home's daily hot water usage and integrates with solar, batteries, and variable electricity pricing to reduce energy use and cost. The product heats at higher temperatures and mixes water at the outlet to deliver more hot water for residential customers.

2 investors

Calogy Solutions develops thermal management technology and modular battery systems for e-mobility, energy storage, and power electronics applications. It offers products such as the L.Pack battery system and Uni.TT thermal plate, along with engineering services including thermal system design, cell characterization, and battery wire bonding.

2 investors

CalWave develops wave energy converter technology that generates power from ocean waves while withstanding storms and extreme conditions. The company designs and tests these systems as a clean energy source with a global market focus.

2 investors

Cancrie develops advanced nanocarbon materials for battery applications, enhancing energy storage performance and longevity. The company combines laboratory research with sustainable manufacturing to produce materials for next-generation battery technologies and clean energy solutions.

2 investors

Canopus develops directional steel shot drilling (DSSD) technology for constructing geothermal wells and borehole heat exchangers at shallow, deep, and ultra deep depths. Its products include the Canoctopus system of curved borehole heat exchangers and multilateral well structures for geothermal heating, cooling, and energy production.

2 investors

Capacitech makes modular C-Link supercapacitor systems that mount on walls, fences, or cable trays and install in days, offering an alternative to cabinet-based power quality equipment. Its plug-and-play systems serve data centers running AI workloads, utilities integrating renewables, and microgrids handling large commercial and industrial loads.

2 investors

Capstone Energy+ designs and manufactures fuel-flexible microturbine-based generator systems for mission-critical operations including data centers, hospitals, and industrial facilities. The company offers on-site power generation solutions with waste heat recovery and circular economy features, along with energy-as-a-service models.

2 investors

Capwell builds units that capture low-flow methane emissions from oil and gas wells and facility vents, sold to oil and gas operators. The company originated from a University of Pennsylvania senior design project and now runs commercial pilots with operators.

2 investors

Carba converts waste biomass into stable biocarbon using proprietary modular thermal reactors, for use in industrial materials, permanent carbon removal, and pollution management. The biocarbon can be buried in landfills to lock in carbon and filter out toxic substances such as PFAS, lead, and mercury.

2 investors

CarboMat produces carbon fibers and battery anode materials from low-value industrial by-products such as bitumen by-products, using a proprietary process aimed at lower production cost and carbon footprint. It serves the composites and battery industries with applications in mobility, defense, aerospace, and energy, and also offers lab services for materials testing and fiber development in North America.

2 investors

Carbon Block funds and generates high-quality carbon offsets from projects that reduce or sequester CO2, such as renewable energy in least developed countries and industrial hemp farming. It connects corporate buyers, funding agencies, and decarbonization projects through a carbon offset marketplace, with planned hardware and blockchain-based verification and tokenization of emission reductions.

2 investors

Carbon Clean develops modular carbon capture technology, including its CycloneCC system, designed for space-constrained industrial sites in heavy industries such as steel, cement, and energy. It works with large industrial companies to capture CO2 at scale in a cost-effective way to support their decarbonisation targets.

2 investors