This article showcases our top picks for the best United States based Energy Efficiency companies. These startups and companies are taking a variety of approaches to innovating the Energy Efficiency industry, but are all exceptional companies well worth a follow.
We tried to pick companies across the size spectrum from cutting edge startups to established brands.
We selected these startups and companies for exceptional performance in one of these categories:
- Innovation
- Innovative ideas
- Innovative route to market
- Innovative product
- Growth
- Exceptional growth
- Exceptional growth strategy
- Management
- Societal impact
Top United States Energy Efficiency Startups
Data sourced from Crunchbase and SemRush.
BlocPower
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BlocPower is an energy technology startup that develops healthier, greener, and smarter cities.
Turntide Technologies
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Turntide Technologies develops an electric motor system designed to drive down energy consumption.
EcoFlow
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EcoFlow designs, develops and manufactures eco-friendly and affordable portable power stations for personal and professional use.
Stem
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Stem brings and optimizes energy consumption to business through its distributed storage technology.
Voltus
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Voltus provides cash-generating energy products to commercial, institutional, and industrial customers.
Carbon Lighthouse
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Delivering easy building decarbonization for commercial real estate owners
Via Separations
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Via Separations eliminates energy use in industrial processes, allowing pathways for a more sustainable, resource efficient future.
Esperanto Technologies
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Esperanto Technologies develops high-performance, energy-efficient chips for Machine Learning based on the open standard RISC-V ISA
Redaptive
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Redaptive is an Efficiency-as-a-Service tool for commercial and industrial customers.
Sealed
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Sealed offers smart home retrofits and turnkey project management to upgrade home easily.
Dividend Finance
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Dividend Finance is a Technology-enabled finance platform supporting the energy transition with lending and other financial solutions.
75F
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75F is a predictive and proactive IoT-based building automation system that addresses HVAC, lighting, and equipment control needs.
SkySpecs
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SkySpecs automates the operations and maintenance of utility scale wind turbines with cutting edge robotics
FirstEnergy Corp.
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FirstEnergy (NYSE: FE) is a diversified energy company dedicated to safety, reliability and operational excellence.
Aquicore
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Aquicore is an information technology company that offers a cloud-based software designed for asset operations platform for the CRE sector.
Urjanet
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The Urjanet Utility Data Platform transforms the way businesses mobilize the data available within utility bills and invoices.
Inspire
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Consumer technology platform that powers cleaner, more efficient, and more sustainable homes.
Ygrene Energy Fund
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Provides Property Assessed Clean Energy (PACE) financing through cities and counties for upgrades to commercial and residential properties.
Budderfly
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Budderfly is an energy management company with devices that measure and report on all elements of energy use.
Invenergy
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Invenergy is a global privately-held developer and operator of sustainable energy solutions.
General Atomics
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General Atomics develops technology solutions for defense, energy, and transportation applications worldwide.
Spruce Finance
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Spruce provides consumer financing for residential solar systems, water conservation upgrades and energy-efficient home improvements.
Sparkfund
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Sparkfund powers organizations by providing access to the latest energy technology.
David Energy
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David Energy is a retail electricity supplier with its own technology system.
Tank Utility
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Tank Utility streamlines energy delivery for those that rely on truck-delivered oil or propane.
PowerX
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PowerX is a technology startup that creates a line of precision sensors that gather data about a home’s electricity, gas, and water usage.
Ameresco
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Ameresco, Inc. provides energy efficiency solutions for facilities in North America. The company engages in the development, design,
Enervee
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Enervee is a platform-oriented company that drives energy efficiency and consumer engagement through a suite of innovative SaaS products.
Clean Energy Trust
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Clean Energy Trust supports early-stage startups working on solutions for clean energy, decarbonization, and environmental sustainability.
US Department of Energy
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US Department of Energy was founded in 1977 and traces its lineage to the Manhattan Project.
SparkMeter
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SparkMeter offers comprehensive low-cost metering solutions for everything from rural micro-grids.
Nautilus Data Technologies
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Nautilus Data Technologies is a collection of data centers used in large businesses.
Renovate America
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Renovate America is leading the way in making homes and communities more energy and water efficient.
R&B Technology Group
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R&B Technology is an energy service company that integrates artificial intelligence and vertical industrial applications.
Digital Lumens
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Digital Lumens is a provider of intelligent LED lighting and facility insights solutions.
Fenix International
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Fenix International produces ultra-affordable mobile enabled solar solutions to empower more than 1.3 billion people living off-grid.
EnergySavvy
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EnergySavvy is a cloud software company that helps utilities transform their customer experience and operations.
Auto Motive Power
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Auto Motive Power is an energy management company that specializes in charging and battery management systems (BMS).
Utilidata
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Utilidata works with utilities to save energy, increase reliability and better detect grid anomalies.
Vutility
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Vutility gathers and provides real-time information on utility usage.
Quidnet Energy
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Quidnet Energy is a technology-driven energy company that powers the carbon-free electric grid.
Project Frog
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Project Frog develops component buildings that assemble easily onsite for architects and builders to create energy-efficient buildings.
Imprint Energy
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Imprint Energy is commercializing a breakthrough low cost, flexible, rechargeable battery technology that would change portable power.
Kill Cliff
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Kill Cliff specializes in providing sports beverages, ready-to-drink beverages, and recovery drinks.
Ecomedes
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Ecomedes is a SaaS platform that helps manufacturers, designers, builders, and building owners save time and money.
Flower Turbines
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Flower Turbines develops small vertical axis wind turbines that produce low noise and are cost-effective.
Amber Solutions
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Amber Solutions is a developer of patented solid-state technologies for the digital control of electricity.
Clean Power Finance
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Clean Power Finance offers an online B2B marketplace that connects the solar industry with financing opportunities and solar sales software.
Illumitex
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Illumitex is a manufacturer of precision LEDs, LED lights, LED grow lights, and digital horticulture solutions.
Sighten
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Sighten develops a software toolset to manage the complexity of distributed solar.
Flex Energy Solutions
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Flex Energy Solutions designs and manufactures power generating systems for private and public entities.
ndustrial.io
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Ndustrial.io offers analytical engines that help businesses control production, improve energy efficiency, and eliminate waste.
Cortex
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Cortex is a building analytics software company that provides real-time actionable insights and decision support to commercial buildings.
LumiGrow
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Empowering Growth Through Connectivity is our mission, offering the industry’s leading smart horticultural lighting solutions.
Semtive
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Semtive is an energy technology company that develops small scale wind turbines for decentralized wind energy generation.
Windmill
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Windmill is building a connected, tech-enabled suite of beautiful and eco-friendly air products, starting with the window AC.
Viridity Energy
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Viridity Energy enabling software turns energy profiles into financial returns.
Plains All American Pipeline
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Plains All American Pipeline is engaged in the transportation, storage, terminalling and marketing of crude oil.
GoSun
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GoSun offers solar technology that provide fuel-free cooking, cooling, charging, lighting and water purification and more!
Biosynthetic Technologies
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Biosynthetic Technologies manufactures biobased synthetic molecules that are made from organic fatty acids found in plant oils.
Novomer
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Novomer is a sustainable chemistry company developing high performance, environmentally responsible polymers and chemical intermediates.
Copper Labs
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Copper helps utilities take control of energy demand by engaging consumers with real-time meter data, with or without smart meters.
Entic
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Entic is a SaaS technology company driving operational efficiency in commercial buildings through IOT & Prescriptive Analytics
Bractlet
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Bractlet specializes in providing building energy modeling, mesh networks, building operations, and big data.
Finally Light Bulb
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Finally develops home lighting systems, intended to create high-quality and energy-efficient bulbs.
Qnergy
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Qnergy was established in 2009 by Ricor Cryogenic and Vacuum, a world leader in the field of miniature Stirling cryogenic coolers.
Urban Umbrella
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Urban Umbrella is the first alternative to the scaffolding industry
Comverge
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Comverge delivers software, hardware, and services to help utilities deploy successful demand response and energy efficiency programs.
Optimum Energy
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Optimum Energy provides energy optimization software solutions that enable enterprise companies to reduce their HVAC expenses.
Curb
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Curb specializes in the fields of energy engagement software and home energy management.
Borrego Solar Systems
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Borrego Solar Systems develops commercial, residential and public sector turnkey, grid connected solar electric systems.
Radiator Labs
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Radiator Labs is an energy management and electrification platform for radiator heated buildings
WattIQ
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First scalable, enterprise-grade IoT solution for asset utilization & condition monitoring built around smart plugs.
NuStar Energy
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NuStar Energy is a independent liquids terminal and pipeline operators in the nation.
haus.me
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Haus.me – Autonomous Self-Sustainable Manufactured Housing Technologies for Construction
Encored
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Encored provides Energy Big Data Platform based on breakthrough disaggregation technology and data science.
PowerSecure International
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PowerSecure International provides utility and energy technologies to electric utilities and their industrial and commercial customers.
Southcross Energy
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Southcross Energy provides natural gas gathering, processing, treating, compression, and transportation services.
Veros Systems
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Veros Systems is a web-based predictive intelligence platform supporting businesses in increasing energy efficiency.
SolarMax Technology
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SolarMax Technology is a renewables & environment company that offers solar design and installation services.
Ampt
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Ampt serves the global market for large-scale PV systems where reliability, predictability, scalability, efficiency, cost and control are
QM Power
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QM Power is a small business (SBA) Delaware C Corporation founded in 2006 to capitalize on proprietary and patented advances in new.
Palmetto Clean Technology
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Palmetto Clean Technology builds and operates clean energy projects for residential, commercial, and utility customers.
OLEDWorks
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OLEDWorks is a manufacturer of OLED light technology for automotive, general lighting, and specialty applications.
Thrive Agritech
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Thrive Agritech, a Y-Combinator company, designs and manufactures the world’s most advanced indoor agriculture lighting
Ultrasolar technology
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Ultrasolar technology is a solar energy company that develops solar space systems.
SolarWorld Americas
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SolarWorld manufactures and sells solar power solutions.
Kleverness
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IoT, SaaS, Smart Buildings, Smart Hotels, Smart Home, Automation, Energy Efficiency, Clean Tech, Green Tech
Energy Focus
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Energy Focus develops and commercializes lighting systems and customer-specific, energy-efficient lighting solutions.
Ecovent
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Ecovent provides an application that enables its users to control room temperature remotely.
UtilityAPI
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UtilityAPI is a service that automatically collects utility bill and usage data from utility web portals.
LogCheck
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LogCheck are building mobile tools for building operators and property managers to run their buildings more efficiently.
Suniva
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Suniva develops, manufactures and markets PV solar cells for clean, earth-friendly power generation.
Personal BlackBox
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Personal Blackbox is a NYC-based, purpose-led technology company.
Bambu Global
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Bambu Global focuses on developing and commercializing breakthrough scientific discoveries.
JTEC Energy
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JTEC is a cutting-edge technology that converts a heat difference into useable power through electrochemical reactions.
ADOMANI
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ADOMANI is a provider of zero-emission electric and hybrid vehicles and drivetrain solutions helping fleet operators with their business.
7AC Technologies
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7AC Technologies energy-saving ultra-efficiency air conditioning systems.
Lime Energy
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Lime Energy is building a new energy future. Our integrated demand side solutions provide utilities with a single platform to deliver
Ekotrope
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Ekotrope provides construction planning, designing, and consulting services for new and renovated buildings.