Best Energy Tech Companies in North Carolina, United States
The 107 best Energy Tech companies in North Carolina, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Phononic.
Our analysis of 79 Energy Tech companies
$38.9b in tracked funding; 92% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Tech companies in North Carolina
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Phononic Providing solid state thermal management solutions | $230M | 59 mo ago | 109 109 → 125 (+15%) | 2009 | Tony Atti Co-Founder & CEO | WordPressMySQLPHP+31 | 96 patents Thermoelectric cooling and moisture control for refrigerated transport and cold-chain logistics | 2 awards |
| 2 | Dude Solutions SaaS-driven CMMS software for commercial spaces | $100M | 148 mo ago | 533 | 1999 | — | Apple iCloud MailMicrosoft 365TypeScript+14 | — | — |
| 3 | DesignLine Digital solutions for business growth: web, HR, finance, and more | $67M | 175 mo ago | — | 1985 | Brad Glosson CEO | — | — | — |
| 4 | PowerSecure Energy efficiency and smart grid management solutions | $65M | 129 mo ago | 1,030 1,030 → 862 (-16%) | 1991 | — | HubSpot CMS HubYouTubeSplide+21 | 22 patents Smart power‑bus communication and control for modular containerized generation and storage systems | — |
| 5 | Tantalus Communication technology provider for smart grids 53Funding top 22%News top 22%Growth top 33%Moat top 48% All 9 signals ▾Fundingtop 22% Newstop 22% Growthtop 33% Moattop 48% Techtop 49% Marketbottom 44% Globalbottom 44% Talentbottom 40% Partnersbottom 35% Funding: Raised $58.7M across 8 rounds · 8 rounds over 22 yrs (0.4/yr) News: 11 BI events in 12 mo (of 29 tracked, 7 types) · +1000% YoY rank vs industry peers · Fliar Intelligence Index 53/100 | $59M | 4 mo ago | 42 | 1989 | Ramatoulie Deen Founder/Executive Director | WordPressApple iCloud MailMySQL+22 | — | 1 launch |
| 6 | Celgard Global leader in high-performance microporous membranes for energy storage and textiles | $49M | 196 mo ago | 451 451 → 348 (-23%) | 1986 | Robert Toth CEO | PHPUbuntuLaravel+9 | 950 patents Porous polymer/ceramic-coated battery separators for lithium‑ion energy storage devices | — |
| 7 | Optimal Technologies Optimizing battery life for embedded and IoT devices with innovative tools | $36M | 223 mo ago | — | 2000 | Roland Schoettle Founder and CEO | — | 22 patents EV chassis support cradles and automotive lighting headlamp assemblies | — |
| 8 | ndustrial Provider of energy management solutions for industrial and cold chain operations | $26M | 17 mo ago | 40 | 2015 | Jason Massey Co-Founder & CEO | — | 15 patents IoT sensor provisioning and onboarding for wireless sensor networks | — |
| 9 | Atom Power Electric vehicle charging solutions and solid-state circuit breaker technology provider | $23M | 72 mo ago | 113 | 2014 | — | Wix eCommerceWixSentry+20 | 66 patents Patents concentrated in electrical & electronics | — |
| 10 | Soelect Provider of lithium-X anode technology and solid-state electrolyte material solutions | $14M | 52 mo ago | 15 | 2018 | — | — | 30 patents Solid-state battery polymer electrolytes and lithium metal anode manufacturing technologies | — |
| 11 | Susteon Technology solution for decarbonization | $14M | 10 mo ago | 14 | 2017 | Shantanu Agarwal Co-Founder | Webflowanime.jsLenis+13 | 36 patents Advanced CO2 capture solvents and electrically heated catalytic reactors for hydrogen/oxygen production | — |
| 12 | Rent Ready Provider of an online marketplace to book apartment turnover services | $12M | 63 mo ago | 26 | 2014 | Jonathan Kite Co-Founder & CEO | Cart FunctionalitySquarespace CommerceSquarespace+13 | — | — |
| 13 | Power Analytics Provider of energy monitoring systems and microgrid integration systems | $6M | 201 mo ago | 23 | 1983 | Adib Nasle Co-Founder & ex-President | — | 77 patents Real-time AI-driven monitoring, forecasting, and safety analytics for electrical power distribution. | — |
| 14 | Opal Provider of software and hardware tools for workforce safety | $5M | 77 mo ago | 2 | 2013 | Michael Brisson Co-Founder | — | — | — |
| 15 | Nimble Energy Provider of AI-powered energy and utilities management solutions | $3M | 13 mo ago | — | 2023 | Jeff Soplop CEO/Founder | — | — | — |
| 16 | Organic Transit Developer of electric velomobile | $3M | 122 mo ago | 12 | 2009 | Robert Cotter CEO | WordPressMySQLPHP+26 | — | — |
| 17 | Microgrid Labs Provider of microgrid implementation solutions | $2M | 54 mo ago | 16 | 2014 | Namit Singh COO | CoFounder | WordPressMySQLPHP+16 | 4 patents Low-cost design, control, and management of electric vehicle charging infrastructure | — |
| 18 | Braggawatt Online platform for project financing in solar energy projects | $2M | 97 mo ago | — | 2016 | Trey Ramsey Co-Founder & CEO | — | — | — |
| 19 | AgEYE Technologies AI-powered farm management solutions provider | $2M | 18 mo ago | 23 | 2018 | — | WordPressMySQLPHP+12 | — | — |
| 20 | Scientific Environmental Design Energy efficient HVAC systems | $2M | 92 mo ago | 5 | 1978 | — | — | — | — |
| 21 | EnergyXchain Blockchain based transaction solutions provider for the gas industry | $1M | 73 mo ago | — | 1990 | Rob Norris Co-Founder & CEO | — | 9 patents Blockchain platforms for tracking, attributing, and managing distributed energy transactions | — |
| 22 | GridBridge Power delivery solutions improving utilities' operating performance at the grid edge | $500K | 132 mo ago | 6 | 2012 | Chad Eckhardt President & CEO | WordPress Block EditorwpBakeryElementor+20 | 29 patents Flexible grid‑edge energy management and routing for electrical distribution networks | — |
| 23 | Novo Aero Technology Provider of engineering, design, certification, and manufacturing solutions for aerospace | $480K | 64 mo ago | 2 | 2018 | Essam T Marcus Founder & CEO | — | — | — |
| 24 | Flux Hybrids Developer of conversion kits for multi-category electric vehicles | $467K | 50 mo ago | 6 | 2019 | Cody Biedermann Co-Founder & CTO | WixSentryBootstrap+11 | — | — |
| 25 | PointGuard Online building analytics software | $450K | 202 mo ago | 16 | 2008 | Shannon Smith CEO | — | — | — |
| 26 | Triangle Biofuels Industries Biodiesel producer focused on renewable fuels and reducing emissions | $296K | 176 mo ago | — | 2007 | Zack Hamm Founder & President | — | — | — |
| 27 | Purillume Provider of smart LED bed light | $250K | 118 mo ago | 2 | 2014 | Neeraj Lal Founder & President | — | 12 patents LED luminaire design and lighting harp components for high‑efficiency lighting systems | — |
| 28 | Phase Change Energy Solutions Developer of thermal energy storage and heating products | $187K | 46 mo ago | 59 | 2011 | Reyad Sawafta Co-Founder & CTO | WordPressMySQLPHP+20 | 112 patents Phase‑change thermal storage materials and devices for heat management and transport | — |
| 29 | BatteryXchange Provider of mobile charging rental solution | $115K | 34 mo ago | 10 | 2018 | Desmond Wiggan Co-Founder | — | — | — |
| 30 | BreeziPro Provider of predictive maintenance technology for HVAC systems | $100K | 105 mo ago | 4 | 2016 | Tim Seaton Co-Founder & CEO | — | — | — |
Top 12 Energy Tech companies in North Carolina
#1
Public · Raleigh, North Carolina · founded 1989 · 42 employees$58.7Mraised▾
Tantalus Systems is a provider of multi-purpose smart grid solutions platform for advanced metering, demand response, and distribution automation. Offers TUNet, a WAN/LAN/HAN communications system that enables electric, water, and gas municipal and cooperative utilities to automate processes, improve business operations, and deliver customer services. It also works on multi-commodity networks like IP based, Mesh and Star, etc.
- Feb 2026Post IPO$156.7K
- May 2024Post IPO$366.5K
- Feb 2017Series B$6M
- Dec 2016Conventional Debt$5.1M
#2
Funding Raised · Cary, North Carolina · founded 2017 · 14 employees$13.7Mraised▾
Technology solution for decarbonization. It is a technology developer focused on industrial decarbonization, specializing in the creation of low-carbon breakthrough solutions for climate change mitigation, utilizing innovative sorbent technologies for carbon capture and utilization.
- Aug 2025Grant (prize money)$999.7K
- Apr 2025Grant (prize money)$1M
- Apr 2025Grant (prize money)$3M
- Jul 2024Grant (prize money)$256.5K
#3
Series B · Durham, North Carolina · founded 2015 · 40 employees$25.9Mraised▾
Provider of energy management solutions for industrial and cold chain operations. The company offers an energy intensity platform designed for production-first energy management. It provides solutions for load control, temperature monitoring, and shore power. The company aims to decrease costs and increase sustainable industrial operations through its platform and services.
- Jan 2025Series B—
- Aug 2024Grant (prize money)—
- Apr 2024Series B$20.1M
- May 2021Series A$6M
#4
Seed · Carrboro, North Carolina · founded 2023$2.8Mraised▾
Provider of AI-powered energy and utilities management solutions. It is focused on providing sustainable energy solutions with the help of AI analytics. It offers automated insights and solutions for energy and utilities management in buildings.
- Apr 2025Seed$2.8M
#5
Series F · Durham, North Carolina · founded 2009 · 109 employees$230Mraised▾
Providing solid state thermal management solutions. It utilizes thermoelectric capabilities of semi conductors to create products that can convert heat into electricity or use electricity to eliminate heat. Phononic has developed solid state pump which can replace compressors in high end refrigeration requirement like in labs and medical facilities.
- Jul 2021Series F$50M
- Jun 2020Conventional Debt—
- Nov 2016Series E$40M
- Sep 2016Series E$30M
#6
Seed · Durham, North Carolina · founded 2018 · 23 employees$1.8Mraised▾
AI-powered farm management solutions provider It provides AI-powered farm management solutions. It developed Smart Spectrum, an intelligent horticulture lighting system that records farm data and adjusts the light spectrum according to plant needs. also offers disease detection and inventory management solutions.
- Dec 2024Seed—
- Apr 2024Seed$515.2K
- Dec 2022Seed—
- Sep 2022Seed$1.3M
#7
Acquired · Cary, North Carolina · founded 1999 · 533 employees$100Mraised▾
SaaS-driven CMMS software for commercial spaces. Features include work & asset management, energy management, event management, community management, and more. Offers solutions for multiple sectors such as education, healthcare, manufacturing, commercial, government, and more.
- Feb 2014PE$100M
#8
Series C · Charlotte, North Carolina · founded 1985$67.3Mraised▾
Digital solutions for business growth: web, HR, finance, and more. The company provides resources and expertise across various business domains. It offers digital transformation strategies, search engine optimization, and web development services to enhance online presence. Human resources solutions cover remote work performance evaluation, payroll management, and childcare options. Financial services include salary optimization, tax advantages for businesses, and credit-leasing guidance. The company also addresses ecological transition, B2B collaborations, and networking strategies. It delivers insights on artificial intelligence, chatbot integration, and e-commerce trends. The platform offers practical guides and advice for entrepreneurs and businesses seeking growth and efficiency.
- Nov 2011Series C$50M
- Dec 2010Series B$11.2M
- Apr 2010Series A$5M
- Jul 2009Unattributed$1M
#9
Acquired · Wake Forest, North Carolina · founded 1991 · 1030 employees$65Mraised▾
Energy efficiency and smart grid management solutions to electric utilities, and institutional and commercial customers. It provides products and services in the areas of Interactive Distributed Generation(IDG), energy efficiency, utility infrastructure, and solar energy. Its products and services are in the areas of energy efficiency, interactive distributed generation, and utility Infrastructure solutions. The company's energy-efficiency products and services include energy-efficient lighting solutions that utilize LED technologies to manage lighting quality and the design, installation, and maintenance of energy conservation.
- Sep 2015Grant (prize money)$40M
- Jun 2013Conventional Debt$25M
#10
Series A · Greensboro, North Carolina · founded 2018 · 15 employees$14.3Mraised▾
Provider of lithium-X anode technology and solid-state electrolyte material solutions. The company focuses on enabling safe, high energy density batteries. These batteries have applications in electric vehicles, portable electronics, and tactical defense equipment. The company’s manufacturing process is scalable for mass production. It also aims to train future battery professionals for the battery supply chain.
- Feb 2022Series A$11M
- Jan 2021Seed$2.3M
- Jun 2020Seed$1M
#11
Funding Raised · Charlotte, North Carolina · founded 1986 · 451 employees$48.8Mraised▾
Global leader in high-performance microporous membranes for energy storage and textiles, specializing in advanced membrane technology. They develop and produce high-performance microporous membranes used in energy storage solutions, including lithium-ion batteries and specialty batteries. Their products are also integral to technical textiles, enhancing waterproof breathable apparel and medical personal protective equipment. They focus on innovation in base films, functional coatings, and next-generation separator innovations. Their expertise extends to sustainability, patents, and quality, ensuring reliable product performance. They serve diverse applications, including electric drive vehicles and energy storage systems, providing critical components for advanced technologies.
- Feb 2010Grant (prize money)$48.8M
#12
Acquired · Charlotte, North Carolina · founded 2014 · 113 employees$23Mraised▾
Electric vehicle charging solutions and solid-state circuit breaker technology provider. They offer transformative power distribution technology delivering protection, visibility, and control. Specializing in electric vehicle Level charging systems, on-premise and cloud-based monitoring, intelligent energy management, and pre-fabricated power distribution skids. Their solutions cater to fleet, workplace, and municipal infrastructure, enabling organizations to manage electric vehicle charging portfolios with reliability and control. They revolutionized circuit breaker technology with the first digital solid-state circuit breaker, offering intelligent protection, reliability, safety, and speed. They provide hardware and software solutions, focusing on creating a new standard for the electrified world. They are action-oriented and drive positive results for all stakeholders.
- Jun 2020Series B$17.8M
- Oct 2017Series A$3M
- Feb 2017Series A—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
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.