Energy Efficiency · United States
Top Energy Efficiency Companies in United States (2026 Update)
BounceWatch lists 502 Energy Efficiency companies in United States. Half were founded in 2010 or later. 41% have a recorded funding round, 2 in the last twelve months. Most are based in New York, Houston and San Francisco.
- Companies
- 502
- Median founded
- 2010
- of 485 with a year
- Raised funding
- 41%
- 208 companies
- Hiring now
- 15
- companies with open roles
Showing 502 Companies
| Company | City | Founded | Focus | Services | Target Customers | Business Model | Revenue Model | Employees | Funding Stage | |
|---|---|---|---|---|---|---|---|---|---|---|
|
BeChained
AI to eliminate wasted energy & carbon offset costs in… |
Dover
|
2020 |
Manufacturing Automation
Carbon Offset
+11
|
AI-powered Plug-and-Play Operating System
Continuous Process Optimization
+2
|
Industrial Manufacturers
Steel Manufacturers
+2
|
B2B
SaaS
|
Subscription
Usage Based
+1
|
9 | Grant |
|
|
SparkMeter
We make it possible for utilities in developing markets… |
Washington
|
2013 |
Electricity Access
Metering Solutions
+10
|
— | — | — | — | 39 | Corporate Round |
|
OffGridBox
We provide affordable clean water and renewable energy… |
Somerville
|
2016 |
Clean Water Technology
Off-Grid Solutions
+12
|
— | — | — | — | 11 | Non Equity Assistance |
|
Team Solar
We use solar to help you see returns from unused land,… |
Framingham
|
2016 |
Solar Energy
Investment Opportunities
+12
|
— | — | — | — | 3 | Grant |
|
Esperanto Technologies, Inc
The Most Energy-Efficient Computing Solutions for Artif… |
Mountain View
|
2014 |
Esperanto Technologies
RISC-V ISA
+9
|
— | — | — | — | 114 | Convertible Note |
|
Optimum Energy
The global leader in HVAC optimization with customer sa… |
Seattle
|
2005 |
HVAC Optimization
Data-driven Solutions
+10
|
— | — | — | — | 105 | Venture round |
|
Nightpeak Energy
Reliably powering communities towards a low-carbon futu… |
Oakland
|
2022 |
Energy Projects
Decarbonized Grid
+11
|
— | — | — | — | 16 | Private Equity |
|
Encentiv Energy
Making energy efficiency accessible and affordable so m… |
Pittsburgh
|
2009 |
Green Solutions
Utility Rebate Programs
+9
|
— | — | — | — | 21 | Venture round |
|
|
BrightNight
Power when you need it. |
West Palm Beach
|
2018 |
Clean Energy
Reliable
+3
|
— | — | — | — | 194 | Private Equity |
|
Energy Source
Your leading provider of comprehensive energy efficienc… |
Smithfield
|
2003 |
Electrification Solutions
Comprehensive Energy Audits
+11
|
— | — | — | — | 47 | Venture round |
|
Tank Utility - Acquired by Gen...
IoT and Software Analytics to help Delivered Fuels Save… |
Boston
|
2014 |
Software Analytics
Remote Monitoring
+9
|
— | — | — | — | 10 | Venture round |
|
Via Separations
Do more with less |
Watertown
|
2017 |
Industrial Separations
Membrane Filter
+12
|
— | — | — | — | 41 | Grant |
|
Quidnet Energy
Powering the Carbon-Free Electric Grid |
Houston
|
2013 |
Energy Storage
Electric Grid
+12
|
— | — | — | — | 20 | Grant |
|
FirstFuel Software
We believe that world-changing opportunities live withi… |
Lexington
|
2006 |
Energy Data
Customer Intelligence
+9
|
— | — | — | — | 3 | Venture round |
|
Skyven Technologies
Delivering Emissions-Free Industrial Steam at the Lowes… |
Richardson
|
2013 |
Energy-as-a-Service
Decarbonization
+10
|
— | — | — | — | 38 | Grant |
|
Ygrene Energy Fund
An easier way to finance your home improvements. |
Miami
|
2009 |
Clean Energy Financing
Home Improvement Industry
+13
|
— | — | — | — | 239 | Private Equity |
|
Holy Grail Inc
We capture carbon dioxide from the atmosphere and perma… |
Mountain View
|
2019 |
Carbon Capture
Carbon Sequestration
+8
|
— | — | — | — | 52 | Seed |
|
|
WexEnergy LLC
Smart windows wear WindowSkin™. |
Rochester
|
2014 |
Smart Windows
Building Retrofitting
+5
|
— | — | — | — | 2 | Non Equity Assistance |
|
Optivolt
Engineering the next generation of solar power electron… |
San Francisco
|
2017 |
Solar Technology
Renewable Energy
+13
|
— | — | — | — | 26 | — |
|
|
Embue
Whole building intelligence, automation and control for… |
Worcester
|
2015 |
Smart Apartment
Building Intelligence
+10
|
— | — | — | — | 16 | Debt Financing |
Showing 20 of 502 companies in this list
