Best Energy Efficiency Tech Companies in Los Angeles, United States
The 33 best Energy Efficiency Tech companies in Los Angeles, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Radiant Nuclear.
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 Los Angeles
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Radiant Nuclear 🦄 Developer of portable nuclear microreactors designed to replace diesel generators 55Funding top 26%Growth top 28%Moat top 37%Market bottom 49% All 8 signals ▾Fundingtop 26% Growthtop 28% Moattop 37% Marketbottom 49% Talentbottom 49% Techbottom 41% Globalbottom 32% Partnersbottom 32% Funding: Raised $55.0M across 7 rounds · 7 rounds over 6 yrs (1.2/yr) Growth: Web rank 10,000,000 → 5,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 55/100 | $55M | 10 mo ago | Series D | Doug Bernauer Founder & CEO | 2019 | GridsomeApple iCloud MailGSAP+9 | — | — |
| 2 | Enervee Energy efficiency data platform | $40M | 54 mo ago | Series B | Don Epperson Co-Founder | 2010 | WagtailSentryApple iCloud Mail+32 | 4 patents Energy efficiency analytics platform for building performance measurement | — |
| 3 | Topanga Technologies Provider of plasma-based lighting solution | $24M | 186 mo ago | Series B | Mehran Matloubian President and Co-Founder | 2005 | — | 77 patents Electrodeless plasma lighting systems with advanced dielectric waveguide and grounding designs | — |
| 4 | Opti-Harvest Agricultural innovation company maximizing crop yield, water efficiency, and sustainability | $19M | 45 mo ago | Series B | Jonathan Destler Founder & Head of Corporate Development | 2016 | — | 48 patents Precision viticulture light delivery, canopy management, and integrated growth analytics systems. | — |
| 5 | Karman Industries Provider of industrial heat solutions designed to reduce energy waste 16Funding top 41%Talent bottom 49%Moat bottom 44%Tech bottom 42% All 8 signals ▾Fundingtop 41% Talentbottom 49% Moatbottom 44% Techbottom 42% Patentsbottom 36% Globalbottom 33% Innovationbottom 31% Marketbottom 28% Funding: Raised $4.0M across 3 rounds · 3 rounds over 2 yrs (1.5/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 16/100 | $4M | 13 mo ago | Series A | Chiranjeev Kalra Co-Founder & CTO | 2024 | WebflowVimeoGSAP+15 | 5 patents Patents concentrated in transport & manufacturing processes | — |
| 6 | Amici Enterprise Provider of induction-based voltage regulation solutions | $850K | 119 mo ago | Seed | Joshua Macciello Co-Founder & Chairman | 2013 | — | — | — |
| 7 | Hive Lighting Provider of app-based plasma lighting products | $473K | 105 mo ago | Seed | — | 2011 | WordPressMySQLPHP+24 | — | — |
| 8 | Chai energy Provider of and IoT and app-based energy monitoring and saving solutions | $425K | 144 mo ago | Deadpooled | Ka Suen Cofounder and CTO | 2012 | — | — | — |
| 9 | Energos Developer of an AI & cloud-based edge analytics platform | $155K | 134 mo ago | Seed | Rajesh Solanki Co-Founder & CEO | 2008 | — | — | — |
| 10 | BK Litec Manufacturer of LED lighting solutions and skin care devices. | $150K | 110 mo ago | Funding Raised | Jisoo Chun Co-Founder & CSO | 2015 | — | — | — |
Top 10 Energy Efficiency Tech companies in Los Angeles
#1
Series D · Los Angeles, California · founded 2019 · 34 employees$55Mraised▾
Developer of portable nuclear microreactors designed to replace diesel generators. The company offers a compact reactor with equipment to generate electricity. The reactors leverage air cooling and high-speed turbomachinery. The units can provide thermal power for facility heating or water desalination. The fuel is designed to be meltdown-proof. The reactors are assembled, fueled, and tested in the factory. After fuel depletion, the entire container is shipped back for refueling.
- Dec 2025Series D$300M
- Feb 2025Series C$66M
- Oct 2024Series C$100M
- Apr 2023Series B$40.7M
#2
Series A · Los Angeles, California · founded 2024$4Mraised▾
Provider of industrial heat solutions designed to reduce energy waste. The company delivers scalable, high-efficiency heat technology for various manufacturing sectors. It focuses on replacing traditional gas boiler systems with more efficient alternatives. The aim is to lower operating expenses and promote sustainable practices. The company's building technologies help meet current standards.
- Sep 2025Series A$20M
- Jan 2025Series A$7.5M
- Sep 2024Seed$4M
#3
Series B · Los Angeles, California · founded 2010 · 78 employees$40.4Mraised▾
Enervee® provide a platform that drives energy efficiency and customer engagement. It provides Enervee Score which rates the energy efficiency of consumer electronics and home appliances from 0 to 100 (best). It’s a real time comparison of how a product ranks compared to all others on the market as of today. Enervee provides personal recommendations for purchasing a product based on energy efficiency, TrueCost (purchase price + energy cost), and popularity (reviews + sales volume). These recommendations are distributed via energy-smart shopping channels available on the Enervee web site and through online publisher and utility partner web sites. Enervee also provides consumers with an EcoView highlighting the impact of a product’s CO2 emissions on society and the environment. Enervee’s data is used by governments and electric utilities to track market trends and incentivize consumers to purchase more efficient appliances. Through analyzing product availability based on location, Enervee can provide a list of utility energy efficiency rebates that are redeemable for each product. The Enervee mission is to help consumers, businesses, and governments save energy and help the environme
- Apr 2022Series B$35M
- Jun 2015Series A—
- May 2015Series A$3.7M
- 2014Seed$1.7M
#4
Series B · Los Angeles, California · founded 2016 · 3 employees$19.4Mraised▾
Agricultural innovation company maximizing crop yield, water efficiency, and sustainability. We develop and market climate-smart products leveraging patented light filtration technology to help growers maximize production, optimize resources, and increase water-use efficiency. Our solutions are designed for commercial growers of high-value specialty crops, enabling them to better utilize sunlight, a fundamental and renewable resource. We offer versatile and durable products specifically designed to integrate smoothly into commercial farming operations. Our products enhance plant physiology, horticulture, and optical physics, promoting sustainable agriculture and mitigating adverse environmental impacts. We provide solutions for vineyards, citrus, nut trees, and avocados, optimizing water use and shortening the time to full production. Our offerings include light management systems, rain protection, and self-training for trellised fruit crops. We focus on accelerating growth in new crops and improving production in mature ones, offering installation guides, training, and ongoing support.
- Jan 2023Series B$1.6M
- Oct 2021Series B$3.6M
- Oct 2021Series B$14.2M
#5
Series B · Los Angeles, California · founded 2005 · 28 employees$24.5Mraised▾
Provider of plasma-based lighting solution. It provides solid state-driven source design with high lumen per watt energy efficiency exceeding. It contains HID metal halide, HPS sodium, HMI halogen, induction, and LED light sources designed to replace the inefficient lamps in outdoor and commercial environments.
- May 2011Series B$15M
- Jul 2009Series A$6M
- Jun 2009Series A$3.5M
- Feb 2008Seed—
#6
Seed · Los Angeles, California · founded 2013$850Kraised▾
Provider of induction-based voltage regulation solutions. It offers MPTS - a solution that precisely senses the supply input and demand output matches the impedance parameters, adjusts the resonance of the resulting network loop, synchronizes and optimizes the output.
- Nov 2016Seed$850K
#7
Seed · Los Angeles, California · founded 2011 · 7 employees$472.6Kraised▾
Provider of app-based plasma lighting products. It offers plasma lighting products that are flicker-free and provide high output and full-spectrum color. Its app is available for Android devices.
- Jan 2018Seed$427.6K
- Nov 2012Seed$25K
- Oct 2012Seed$20K
#8
Deadpooled · Los Angeles, California · founded 2012 · 5 employees$425Kraised▾
Provider of and IoT and app-based energy monitoring and saving solutions. It offers an energy-saving app. Its features include warnings if devices are left on, power usage spikes warnings, real-time energy monitoring, bill breakdowns, notifications about energy-saving opportunities, energy analysis to find out where the home is the least energy efficient. Its app is available for Android devices.
- Oct 2014Seed$400K
- Aug 2014Seed$25K
- May 2013Grant (prize money)$40K
#9
Funding Raised · Los Angeles, California · founded 2015$150Kraised▾
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- Aug 2017Grant (prize money)$150K
#10
Seed · Los Angeles, California · founded 2008 · 12 employees$155.4Kraised▾
Developer of a unified platform and edge AI designed to help retailers set up or manage electric vehicle charging infrastructure and microgrids. The company's platform creates easy integration with different makes and types of electric vehicle chargers, storage, PV systems as also HVAC, and others, enabling retailers like fuel service stations & c stores, EV charging and battery swap stations, hydrogen and CNG stations, and utilities set up and manage to provide multiple energy choices to EV car owners.
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
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.