Energy Startups

Oka is a specialty insurer that underwrites eligibility, performance, and integrity risks for carbon market and clean-energy finance transactions. It provides risk transfer cover for capital providers, buyers, and developers so climate-related deals can close.

1 investor

CarbonPoint Solutions (founded in 2011 as Enhanced Energy Group) develops carbon capture technology that concentrates and captures CO2 from reciprocating engines and gas turbines at distributed power system scale, using its patented Semi-Closed Cycle (SCC) and CO2-TSA processes originally derived from U.S. Navy undersea propulsion technology. The company was acquired by Caterpillar Inc. in September 2021.

1 investor

CarbonQuest provides a modular Distributed Carbon Capture System (DCCS) that captures, liquefies, and monetizes CO2 onsite for biogas/RNG facilities, food and beverage manufacturers, and onsite low-carbon power generation. The company combines proprietary hardware, AI-powered software, project financing, and a pre-built CO2 offtake network across the US and Canada into a single turnkey service.</parameter> <parameter name="founders">[]

1 investor

CarbonX manufactures a battery anode material, made using a patented emulsion feedstock technology, intended to replace graphite in batteries. The company positions its product as a way to reduce reliance on geopolitically exposed supply chains for battery production.

1 investor

Cargar builds portable and fast electric vehicle charging technology powered by green energy, delivered on-demand to vehicles at home, office, or other locations. The company provides sustainable charging solutions to reduce range anxiety and support widespread EV adoption.

1 investor

CargaTuCoche installs home electric vehicle charging points in Spain, including for apartments and shared community garages, using load balancing to avoid increasing contracted power. It advises customers on tax deductions, costs, and combining charging with solar self-consumption.

1 investor

Carter Wind Energy designs, engineers, and manufactures light-weight, self-erecting two-blade wind turbines, initially targeting small wholesale and industrial distributed-generation installations for harsh and remote locations. A third-generation family business, it serves the global electric power generation market with mid-size turbine technology.

1 investor

CASHIN provides payment terminals, POS systems, and e-invoicing solutions, with a focus on automation for fuel and energy stations using a "Tank to Bank" approach and AI-powered dashboards. It serves retail, food & beverage, gas station operators, and large-scale events in Saudi Arabia.

1 investor

CaSil Technologies (CaSilTech) develops patented technology that captures problematic silica from geothermal water, improving heat and electricity recovery from geothermal resources while producing nanostructured calcium silicate materials used in smart fertilisers, metal recovery, rubber, paint, paper, and building insulation. The company applies a circular economy approach to geothermal energy and environmental product manufacturing.

1 investor

Castlerock Biofuels develops a network of rapid thermal processing (RTP) facilities that convert wood waste from sustainable forestry into low-carbon cellulosic biofuels, with a flagship project in Millinocket, Maine. The company aims to build biofuel plants across the United States to replace traditional fossil fuel oils while supporting rural forestry economies.

1 investor

Celadyne develops a domestically manufactured multi-layer proton exchange membrane that reduces hydrogen crossover to improve durability and efficiency in fuel cells and electrolyzers. Its membrane targets defense and industrial electrochemical systems, with roadmap applications including flow batteries, electrochemical separation, and compression for markets such as trucking, shipping, steel, and grid power.

1 investor

Cellfion develops materials for next-generation energy and water systems, focused on safer, higher-performance alternatives that reduce environmental impact. The company positions its work around sustainability and circular systems aligned with the UN Sustainable Development Goals.

1 investor

CeLLife Technologies develops battery testing and diagnostics technology that enables advanced data collection to assess battery quality, reduce scrapping of good cells, and extend battery life for manufacturers and energy storage operators. Founded as a spin-off from Tampere University, the company serves the battery production industry with a focus on European and global markets.

1 investor

Nana A. Holdings Ltd. is an operating company with interests in child education, energy, maritime, mobility, and industrial manufacturing.

1 investor

Cenosco develops IMS RCM, a cloud-based Reliability-Centered Maintenance software that helps industrial operators prevent unplanned equipment failure and optimize preventive maintenance tasks. It is part of the IMS Suite, a set of integrity and equipment management tools for asset-heavy industries, offering features like asset hierarchy, ERP integration, dynamic forms, and offline field inspections.

1 investor

Centinel provides continuous monitoring and data-driven analysis of commercial building HVAC and energy systems, flagging faults and identifying energy-saving projects for commercial real estate investors and property teams. Its service aims to lower tenant utility costs while increasing net operating income across building portfolios.

1 investor

Central Moloney (CMI) manufactures distribution transformers, transformer components, and wildlife protection products. It is one of North America's larger manufacturers in this category, serving the electrical power distribution industry.

1 investor

Centrica Business Solutions provides energy solutions focused on net zero, sustainability, low carbon, and renewable energy for business customers. It also publishes energy market insights, news, webinars, and podcasts.

1 investor

Cereus Ultrasonics develops ultra-wideband active/passive sonar systems and high-power analogue components for interfacing piezo-electric transducers to power amplifiers in fluidic and high-pressure gas mediums. The company applies electro-acoustic techniques such as Acoustic Resonance Technology, including crack detection and condition measurement in gas pipelines.

1 investor

CERTANIA provides testing, inspection, and certification services across areas such as food testing, pharmaceutical examination, and building inspection. It combines technical expertise with digital tools to deliver these safety and compliance services to customers.

1 investor

Certarus provides pipeline-free delivery of compressed natural gas (CNG), renewable natural gas (RNG), and hydrogen using a mobile fleet of high-pressure gas trailers and compression assets across North America. It serves data centers, manufacturers, utilities, producers, and remote operations that need reliable energy where pipeline access is constrained, delayed, or unavailable.

1 investor

conductr is a digital platform that connects project developers with pre-vetted experts (certifiers, assessors, engineers) to accelerate the grid connection process for renewable energy installations. It provides a collaborative workspace, digital procurement, workflow automation, and AI-assisted documentation to reduce approval timelines.

1 investor

Certinergy assists building professionals and property owners with energy efficiency projects through technical solutions and financial support, including energy savings certificates (CEE) in France.

1 investor

Cervi is a Finnish building services (talotekniikka) company specializing in indoor air conditions, offering ventilation cleaning, balancing, maintenance, chimney sweeping, and cooling/refrigeration system service for homes and properties. It uses digital and IoT technology for smart ventilation and heat pump systems, and operates through property maintenance contracts for housing companies and commercial buildings.

1 investor