Best Energy Efficiency Tech Companies in Ohio, United States
The 50 best Energy Efficiency Tech companies in Ohio, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Appalachian Power.
Our analysis of 50 Energy Efficiency Tech companies
$7.8b in tracked funding; 86% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Efficiency Tech companies in Ohio
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Appalachian Power Provider of power consumption monitoring solutions | $600M | 64 mo ago | Funding Raised | — | 2001 | Google MapsEnvoystyled-components+13 | — | — |
| 2 | Energy Focus Provider of smart LED lighting products | $22M | 37 mo ago | Public | — | 1985 | PHPYouTubeGSAP+11 | 132 patents High‑efficiency LED lamp drivers and tubular LED ballast converters for power‑factor improvement | — |
| 3 | Micro Turbo Technologies Online platform offering energy saving refrigerant solutions | $5M | 41 mo ago | Series A | — | 2021 | — | — | — |
| 4 | Wireless Environment Provider of off-grid LED lighting fixtures | $2M | 194 mo ago | Seed | — | 2005 | — | 66 patents Wireless LED lighting control and off‑grid power management systems | — |
| 5 | Melink Project developer and solutions provider in the renewable energy sector | $2M | 72 mo ago | Acquired | Steve Melink Founder & CEO | 1987 | Cart FunctionalityWordPressMySQL+36 | 9 patents Patents concentrated in mechanical & energy engineering | — |
| 6 | Subterra AI-driven solutions to inspect and manage sewer networks | $2M | 37 mo ago | Seed | Robert Lee Founder & CEO | 2018 | — | 6 patents 3D depth sensing and remote structural inspection for infrastructure mapping and analysis | — |
| 7 | Nodis Smart glass manufacturer | $500K | 71 mo ago | Seed | Sergey Shokhor Co-Founder & Co-CEO | 2014 | — | — | — |
| 8 | JadeTrack Sustainability Performance Management | $312K | 141 mo ago | Acquired | — | 2011 | — | — | — |
| 9 | Glow Smart energy tracker for residential application | $270K | 103 mo ago | Seed | Ben Lachman Co-Founder | 2017 | — | — | — |
| 10 | PlugOp Provider of energy management solution | $120K | 13 mo ago | Seed | Tyler Simons Co-Founder | 2022 | Framer SitesReactAmazon Web Services+9 | — | — |
| 11 | Intwine Provider of IoT services for smart buildings | $100K | 143 mo ago | Funding Raised | Dave Martin Founder & CEO | 2008 | RubyRuby on RailsEnvoy+17 | — | 1 launch |
| 12 | Vertiv Provider of power, thermal, and IT infrastructure solutions and services | — | 45 mo ago | Public | Giordano Albertazzi CEO | 1946 | Apple iCloud MailMicrosoft 365Vimeo+33 | 765 patents Data center power distribution and liquid cooling infrastructure for high‑density IT equipment. | — |
Top 12 Energy Efficiency Tech companies in Ohio
#1
Seed · Columbus, Ohio · founded 2022$120Kraised▾
Provider of energy management solution. It offers optimization based energy management that allows property managers to provide a premium charging experience at a fraction of the cost. It also provides smart load management software that allows multiple chargers to be configured on a single circuit, drastically reducing electrical infrastructure upgrade requirements.
- Jun 2025Seed$70K
- Dec 2024Seed$100K
- Mar 2024Seed$20K
- Dec 2023Conventional Debt—
#2
Funding Raised · Columbus, Ohio · founded 2001 · 3200 employees$600.2Mraised▾
Appalachian Power provides power consumption monitoring solutions. It provides a mobile application for users to pay bills and report outages. It also allows users to view real-time account balance, payment due date, balance details, etc. and schedule bill payments. Also, provides updates on power outages, alert notifications, etc.
- Mar 2021Conventional Debt$100M
- 2020Conventional Debt$500M
- Sep 2010Grant (prize money)$195.1K
#3
Public · Solon, Ohio · founded 1985 · 20 employees$21.6Mraised▾
Provider of smart LED lighting products. The product offerings include abUV ceiling light, V-series LED tube, mUVe surface disinfection robot, and more. Additionally, it provides EnFocus - a lighting control platform.
- Jul 2023Post IPO$1.3M
- Jun 2022Post IPO$3.5M
- Dec 2021Post IPO—
- Jan 2020Post IPO$430.2K
#4
Series A · New Hampshire, Ohio · founded 2021 · 8 employees$5.1Mraised▾
Online platform offering energy-saving refrigerant solutions. It next generation compressor technology to make energy-efficient products.
- Feb 2023Series A$5.1M
#5
Seed · Cincinnati, Ohio · founded 2018 · 13 employees$2.2Mraised▾
AI-driven solutions to inspect and manage sewer networks. It also provides a cloud-based platform to store, view, and inspect all data from sewer inspections. Its product includes a rapid large diameter sewer inspection system and a rapid vertical inspection system.
- Jun 2023Seed$2.2M
#6
Acquired · Cincinnati, Ohio · founded 1987 · 95 employees$2.3Mraised▾
Project developer and solutions provider in the renewable energy sector. It provides commercial & geothermal HVAC solutions, solar PV systems & kitchen hood controls. Additionally, offers project development, design, financing, installation, maintenance, and monitoring services.
- Jul 2020Grant (prize money)—
- Jun 2017Grant (prize money)$2.2M
- Jun 2010Grant (prize money)$42K
#7
Seed · Cleveland, Ohio · founded 2005 · 19 employees$2.3Mraised▾
Provider of off-grid LED lighting fixtures. Its offerings include battery-powered and hybrid LED light fixtures such as motion-sensing closet lights, power-outage lights, and modular luminaires that operate independently of mains power using proprietary power-management systems. It include patented wireless power-management technology allowing lights to switch between grid-powered and battery-powered modes, RF-based networking for home-wide illumination, and user convenience via plug-and-play installation. It serves residential and commercial customers seeking reliable, easy-to-install lighting solutions that maintain illumination during power outages or in areas without convenient wiring.
- May 2010Seed$205K
- Dec 2008Seed$400K
- Sep 2007Grant (prize money)$100K
- 2007Seed$1.7M
#8
Seed · Worthington, Ohio · founded 2014 · 7 employees$500Kraised▾
Smart glass manufacturer for commercial and personal buildings. Through its smart glass users can change the tint, color, and temperature of windows. It integrates with building and home automation systems. It can be controlled from anywhere using smartphones or automatically from building management systems and home automation systems.
- Sep 2020Seed$500K
- 2018Grant (prize money)—
- Jan 2016Seed—
- Sep 2015Grant (prize money)$35.3K
#9
Seed · Athens, Ohio · founded 2017 · 8 employees$270Kraised▾
Glow, an offering of Potential Labs, is a smart energy tracker for residential application. The solution comprises of a patent-pending sensor that attaches to the utility meter box and an in-home unit which can be placed anywhere in the home. The sensor monitors the energy usage in real-time and based on that the in-home unit changes color and dims automatically at night. The company additionally provides a companion application that allows to remotely monitor usage. It is compatible with other smart home devices such as Amazon Alexa, Google Home, Nest etc.
- Jan 2018Seed$270K
#10
Acquired · Powell, Ohio · founded 2011 · 13 employees$312Kraised▾
JadeTrack offers analytics solution for energy management, sustainability, carbon management and building analytics. Includes the features for reporting energy and water usage, waste generation and carbon emission. Energy management is a cloud-based platform that provides real-time usage data. Building analytics platform collects data through smart meters and analyzes it to detect any anomaly. Also provides performance report and custom dashboard feature.
- Oct 2014Seed$312K
#11
Funding Raised · Chagrin Falls, Ohio · founded 2008 · 8 employees$100Kraised▾
Intwine is a provider of IoT services and energy management solutions for smart buildings. It offers building automation, LED lighting, IoT technology, wireless controls, occupancy detection, and others. Also, provides services such as LTE Failover, Building-to-Grid, indoor air quality monitoring, and equipment monitoring.
- Aug 2014Grant (prize money)$100K
#12
Public · Columbus, Ohio · founded 1946 · 27000 employees—raised▾
Provider of power, thermal, and IT infrastructure solutions and services. The company delivers technologies and customized solutions to meet specific business requirements. Its portfolio includes uninterruptible power supplies, power distribution, and thermal management. The company also offers racks, enclosures, monitoring, and digital infrastructure management.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Efficiency Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Energy Efficiency & Buildings is moving in the United States
A read on the academic research around Energy Efficiency & Buildings — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 2,722 United States-affiliated papers.
- Purdue University West Lafayette140
- Oak Ridge National Laboratory127
- National Laboratory of the Rockies80
- Georgia Institute of Technology53
- Electric Power Research Institute53
- Radiative cooling1→50
- Passive cooling7→42
- Emissivity1→26
- Renewable energy14→38
- Thermal6→27
- Radiative cooling10→39
- Renewable energy63→89
- Energy storage22→48
- Photovoltaic system35→53
- Thermal35→53
- Renewable energy7→17
- Electricity2→9
- Heat pump40→47
- Energy management14→18
- Microgrid2→6
Where energy efficiency is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing energy efficiency patents in the United States
United States energy efficiency patent filing is accelerating — 3,337 filings from 1,859 assignees (2016–2025), led by Carrier, Intel, Rheem MFG; annual filings 315→449.
- Carrier430
- Intel178
- Rheem MFG177
- General Electric172
- Johnson Controls TECH123
- FORD Global TECH108
- Haier US Appliance Solutions108
- Lennox IND79
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.