Energy Startups
4,798 companies tagged Energy, with their investors and founders.
Redaptive provides fully funded energy infrastructure upgrades, offering structured financing, turnkey execution, and measurable savings verification for enterprises. It serves large industrial, healthcare, and real estate organizations with distributed, complex facility portfolios.
3 investors
Redox Blox develops thermochemical energy storage systems that store thermal energy in less space and release superheated air for industrial heating processes. The systems serve manufacturing and industrial facilities seeking to decouple heating operations from grid electricity availability.
3 investors
Regascold is a greentech company that recovers cold energy from the regasification of liquefied gases using its patented technology. It aims to make industrial cooling processes more sustainable and cost-effective while reducing COβ emissions and energy costs.
3 investors
Renew Risk provides science-based risk modelling and analytics focused on renewable energy infrastructure, covering financial risk, engineering failures, and natural catastrophe exposure. Its products serve insurers, developers, and financiers who need to quantify, price, and manage risk to renewable energy assets.
3 investors
Renewable Metals develops an alkali-based recycling process that recovers lithium, nickel, cobalt, and other critical minerals from end-of-life lithium batteries for reuse in new battery manufacturing. The company serves battery recyclers and participants in the global lithium battery supply chain.
3 investors
Renova, Inc. (ζ ͺεΌδΌη€Ύγ¬γγ) is a Japanese company. The page shown is a website terms-of-use notice and does not describe the company's actual business activities.
3 investors
Resilience deploys residential solar and storage, aggregating homes into a single dispatchable grid resource that supplies power to the AI/data center economy while lowering or eliminating energy costs for working families. It operates in the US through partnerships with local CDFIs, land banks, foundations, and city partners, structuring capacity for bilateral contracts, virtual power plant participation, or capacity market revenue.
3 investors
Resync offers an AI-powered smart building and energy management platform that monitors energy assets at the component level, forecasts inefficiencies, and automates control actions to reduce energy use and carbon emissions. It integrates with existing building management systems and serves enterprises pursuing decarbonization and sustainability goals, with activity in Southeast Asian markets such as Indonesia and Thailand.</parameter> <parameter name="sector_codes">["energy", "ai_ml", "iot"]
3 investors
Rewbi rebuilds the electrical grid by financing, optimizing, and maintaining clean energy sources, particularly battery systems for grid stabilization. The company serves the power industry to reduce emissions and increase grid reliability.
3 investors
Rhythmos.io, now part of Electron, provides analytics tools that give insight into distributed energy resource (DER) location and grid impact for intelligent energy delivery and use.
3 investors
RigNet, now part of Viasat energy services, provides managed communications, secure IIoT networks, and the Intelie Live machine learning analytics platform for connecting and monitoring distributed sites and remote operational assets. It serves industries that rely on remote operations, with a focus on oil & gas.
3 investors
RigUp provides vendor management software, staffing and payroll services, and bid management tools for the energy industry, focusing on workforce and procurement solutions.
3 investors
Rock Rabbit provides an AI-powered platform that simplifies the application, verification, and payment of energy efficiency incentives for contractors, installers, and equipment manufacturers. The company streamlines the incentive claim process to accelerate residential building electrification and energy upgrades.
3 investors
Rondo manufactures thermal battery systems that store energy by heating refractory bricks with renewable electricity and release it as continuous industrial heat and power for manufacturing processes. The company serves cement, chemical, food and beverage, fuel, and textile producers seeking to decarbonize heat-intensive operations.
3 investors
RTDT develops Aerosense, a wireless, ultra-thin sensor patch that retrofits onto wind turbine blades to capture high-frequency aero-structural data, paired with analysis modules and dashboards. The system serves wind turbine operators and designers for design, control, operations, and risk management.
3 investors
Safire develops hardware and software for energy systems, including resilient battery design, ruggedized sensing, secure communications, and an AI-powered energy operating system for real-time monitoring and control. The company targets critical energy infrastructure applications.
3 investors
Sage Geosystems develops pressure geothermal technology to generate energy from the earth's subsurface heat, drawing on decades of experience drilling wells worldwide. The company operates in the geothermal energy sector, aiming to provide sustainable power generation.
3 investors
Salient Energy manufactures zinc and manganese batteries for electricity storage, providing an alternative to lithium-ion with lower costs and reduced environmental impact from mining and manufacturing.
3 investors
Sapient Industries provides advanced energy submetering and monitoring systems for commercial and residential properties, helping facility managers track energy consumption, reduce costs, and achieve decarbonization goals. The company serves enterprise customers, real estate developers, service providers, and energy consultants with integrated hardware and analytics solutions across industries including manufacturing, retail, healthcare, and multi-tenant residential buildings.
3 investors
sees.ai develops an autonomous drone inspection platform for electricity network operators to conduct large-scale, close-up inspections of live power networks safely and consistently. The company owns the full technology stack from drone hardware to software and data systems, giving operators data sovereignty and centralized control capabilities.
3 investors
Sensibo makes smart controllers and sensors that add remote control, automation, and geofencing to existing air conditioners and heat pumps, along with indoor air quality monitoring for pollutants like CO2, VOCs, and PM2.5. Its products, aimed at homes and enterprise building management, use AI to reduce energy use and improve indoor climate and air quality.
3 investors
Sensorfact offers sensors and a software platform for factories to monitor machine-level electricity, gas, water, and compressed-air usage, machine condition, OEE, and temperature. It provides energy-saving advice, leak detection, and predictive-maintenance alerts for industrial and manufacturing operations.
3 investors
SensorFlow provides an IoT-based energy management platform for hotels, offering guest room automation devices and tools (SmartGRD, SmartBEA, SmartREM) to monitor and optimize electricity, water, gas, and waste consumption. It serves hotel operations, sustainability, and management teams looking to reduce costs, improve energy efficiency, and report ESG metrics.
3 investors
SensorUp aggregates sensor data, flyovers, inspections, and field reports into a single asset model to help distributed heavy industry operations identify and route critical signals to appropriate teams. The platform focuses on methane operations, emissions monitoring, and compliance workflows for oil, gas, and energy companies at scale.
3 investors










