Energy Startups

A worker-focused organization building a network of union-led coalitions across U.S. states to advance pro-worker climate action, aiming to create union jobs, lower energy bills, and expand reliable clean energy. It serves working families and labor communities with a focus on climate and energy policy advocacy in the United States.

1 investor

Climate Pros provides refrigeration system upgrades and conversions to eco-friendly, energy-efficient technologies for facility managers and technicians. The company specializes in transitioning from phased-out refrigerants to low-GWP alternatives that comply with environmental regulations while reducing operational costs.

1 investor

Climate Solutions is a nonprofit advocacy organization focused on clean energy policy and the energy transition in the Pacific Northwest. It works on issues such as electrification, utility rate reform, and data center energy regulation, publishing analysis and mobilizing public comment on climate policy.

1 investor

Cling Systems brokers lithium-ion batteries in all conditions—brand new, surplus, used, and end-of-life—into compliant transactions through assessment, transaction advisory, logistics orchestration, and settlement services. The company serves battery holders across more than 20 countries and specializes in matching inventory with qualified buyers while managing regulatory and shipping requirements.

1 investor

Clockwork provides a reliability and diagnostics layer for EV charging networks, integrating with existing charge management systems to detect and resolve operational issues before they impact drivers.

1 investor

Cloverleaf Infrastructure develops large-scale clean energy and data infrastructure projects. The company specializes in strategically positioned, shovel-ready energy sites designed for energy-intensive industries with a focus on grid reliability and community impact.

1 investor

Continental Resources is the largest privately held oil and natural gas producer globally, extracting and developing unconventional resources across premier U.S. asset positions and international ventures.

1 investor

Clyde Hydrogen develops modular hydrogen production systems ranging from 100kW to 100MW+ for applications including emergency backup power, industrial energy storage, and mobility refueling. The company's technology uses standardized modules (reductor, storage, and reactor) to enable flexible, scalable hydrogen generation and storage.

1 investor

1 investor

CN Action manufactures precision testing power supplies and power conversion equipment for industrial, research, and infrastructure applications. The company produces testing power supplies, power quality control systems, industrial power supplies, and specialized power solutions for sectors including railways, aviation, power grids, and new energy.

1 investor

Cnano USA is the American operation of Jiangsu Cnano Technology, producing carbon nanotubes and a carbon nanotube paste that improves conductivity in lithium-ion batteries for electric vehicles. It supplies these materials to U.S. car and truck manufacturers to enable longer range and faster battery charging.

1 investor

CnerG helps companies integrate clean energy and carbon solutions into their operations, supply chains, and organizational structures for climate action. It serves global enterprises and SMEs with emissions offsetting and sustainability strategy, and is a certified B Corporation based in Korea.

1 investor

CNIguard develops monitoring and predictive analytics solutions for underground electric and utility distribution networks. The company serves utility companies seeking to transition from reactive maintenance to data-driven preventive operations in urban infrastructure.

1 investor

Coastal Virginia Offshore Wind (CVOW) develops an offshore wind energy project located 27 miles off the coast of Virginia Beach. The project aims to generate renewable electricity for homes and businesses in the region.

1 investor

Coast Energy operates a resilient microgrid system powered by solar, batteries, and diesel generators for critical infrastructure customers like aquaculture facilities. The system generates and stores renewable energy on-site to reduce energy costs and provide backup power against outages.

1 investor

Cobalt International is an oil exploration, development, and production company. Its website presents information on its assets, oil exploration, and oil development and production activities, along with restructuring information.

1 investor

Cogeninfra develops and operates district heating networks and delivers energy efficiency solutions—including photovoltaic, cogeneration and trigeneration plants, heat recovery systems, heat pumps, and a digital platform for monitoring energy data—for industrial clients and public administrations. The Italian company also provides operation and maintenance (O&M) services for cogeneration plants.

1 investor

Cogentrix is a power generation company that manages power plant operations and handles acquisitions, financings, and asset improvements for power plant investments. It positions itself around supporting the energy transition.

1 investor

RZX Tecnologia develops neuroscience-based solutions to improve safety and efficiency in oil and gas drilling operations by optimizing cognitive performance and reducing human error in complex operational environments.

1 investor

A consulting and advisory firm in the energy and utilities industry, focused on customer-centric transformation, operational excellence, and strategic innovation for utility organizations.

1 investor

Colibri develops German-engineered lithium battery and high-voltage traction systems for airports, warehouses, and ground handlers, including systems for automated guided vehicles, hybrid tractors, and smart-grid energy storage. Its technology targets industrial efficiency and energy storage applications.

1 investor

Colite Technologies designs and installs customized solar, battery, and hybrid energy systems for commercial operations including manufacturing facilities, distribution centers, and corporate campuses. The company provides comprehensive services from system design and installation through financing, monitoring, and maintenance to help clients reduce operating costs and achieve energy independence.

1 investor

Combinder operates a decentralized physical infrastructure network (DePIN) that lets households connect their distributed energy resources (DERs) such as smart devices and EV chargers to provide grid flexibility and data. The platform aggregates these devices into a virtual power plant, rewarding users with points and access to markets like flexibility trading and carbon credits.

1 investor

Combined Energies develops proprietary power conversion products for OEM customers and end users in the energy storage, renewables, electric vehicle, and alternative energy markets. The company is based in upstate New York.

1 investor