Best Energy Tech Companies in South Carolina, United States
The 33 best Energy Tech companies in South Carolina, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Palmetto.
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 South Carolina
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Palmetto 🦄 Residential solar energy systems and battery storage solutions | $670M | 21 mo ago | Series C | Christopher Kemper Co-Founder & CEO | 2009 | PlasmicPrismicApple iCloud Mail+34 | — | — |
| 2 | MyHeatworks Provider of tankless electric water heaters | $13M | 58 mo ago | Deadpooled | — | 2013 | — | — | — |
| 3 | Soteria Battery Innovation Group Developer of fire-proof Li-ion battery components for EVs, energy storage and electronics | $3M | 20 mo ago | Series A | Brian Morin CEO | 2017 | — | 77 patents Patents concentrated in electrical & electronics | — |
| 4 | Greenway Energy Developer of hydrogen production, hydrogen storage, and fuel cell technologies | $3M | 56 mo ago | Funding Raised | — | 2006 | — | — | — |
| 5 | Trulite Provider of multidisciplinary medical services and telehealth options | $1M | 189 mo ago | Public | — | 2002 | — | 52 patents Hydrogen generation and processing via chemical converters and solid‑reactant systems | — |
| 6 | Dreamweaver International Develops battery separators | $1M | 146 mo ago | Series B | — | 2011 | — | 10 patents Advanced single-layer Li‑ion battery separators using nanofiber‑microfiber composites | — |
| 7 | Solbright Group IoT platform for providing actionable insights | $1M | 114 mo ago | Early Stage | Terrence DeFranco CEO | 1999 | — | — | — |
| 8 | Renewed World Energies Photobioreactor for cultivation of algae and products from algae | $618K | 204 mo ago | Acqui-Hired | Richard Armstrong Co-Founder | 2007 | — | — | — |
| 9 | AssetPoint Provider of Enterprise Asset Management and CMMS Solutions | $500K | 223 mo ago | Acqui-Hired | Mike Levine ex- CEO | 2002 | — | — | — |
Top 12 Energy Tech companies in South Carolina
#1
Palmetto 🦄Series C · Charleston, South Carolina · founded 2009 · 419 employees$670.4Mraised▾
Residential solar energy systems and battery storage solutions. It offers tools to estimate energy savings and system upgrade options. It facilitates financing plans for clean energy setups. Additionally, it provides resources and support for existing customers regarding systems and service requests.
- Jan 2025Conventional Debt$1.2B
- Mar 2023Series C$150M
- Feb 2022Series C$375M
- Feb 2021Series C$80M
#2
Series A · Greenville, South Carolina · founded 2017 · 16 employees$3.3Mraised▾
Developer of fire-proof Li-ion battery components for EVs, energy storage and electronics
- Feb 2025Series A$1.2M
- Mar 2021Series A$3.3M
#3
Deadpooled · Mount Pleasant, South Carolina · founded 2013 · 25 employees$13Mraised▾
MyHeatworks provides solutions for tankless electric water heaters. It uses patented array ohmic technology to heat water. It also provides dishwashers and battery-operated hot water carafe filters.
- Dec 2021Series A$2M
- Apr 2021Series A—
- Aug 2020Series A$450K
- Jun 2018Series A$1M
#4
Funding Raised · Aiken, South Carolina · founded 2006$2.9Mraised▾
Developer of hydrogen production, hydrogen storage, and fuel cell technologies. The company researches and develops solutions for clean energy technology applications. It produces Alane for commercial and government use. The company designs, builds, and supports custom systems. It also builds customized gas sorption measurement units. The company's scientists and engineers develop and deploy advanced electrochemical systems.
- Feb 2022Grant (prize money)$394.3K
- Jun 2020Grant (prize money)$200K
- Aug 2018Grant (prize money)$2M
- Feb 2017Grant (prize money)$305.6K
#5
Early Stage · Charleston, South Carolina · founded 1999$1.1Mraised▾
IoT platform for providing actionable insights. The platform analyzes sensor data from BACnet, Modbus, 4-20mA, volt, Co2, VOC, temperature /humidity, thermistor, and current transformers (CTs) for pushing the same to the IoT gateway. The company claims to use machine learning in the data set for providing actionable intelligence. In addition, it features energy management and predictive maintenance modules for multiple applications such as demand response, demand control ventilation, monitoring and alerting, and predictive analytics. Applications are in the areas of healthcare, retail, manufacturing, and real estate.
- Apr 2017Unattributed$195K
- Apr 2015Unattributed$500K
- Apr 2014Unattributed$400K
#6
Series B · Greenville, South Carolina · founded 2011 · 6 employees$1.2Mraised▾
Dreamweaver developed and designs a nonwoven battery separator made from a combination of nanofibers and microfibers that provides 300% higher power. The technology allows higher transmission of electricity in the battery, improving the power available in electric vehicles, power tools and other high power applications and has better efficiency, higher energy density
- Sep 2014Series B$650K
- Aug 2012Conventional Debt—
- Aug 2012Series A$340K
- Aug 2011Seed$175K
#7
Public · Columbia, South Carolina · founded 2002 · 5 employees$1.2Mraised▾
Provider of multidisciplinary medical services and telehealth options. It offers a range of healthcare services, including access to medical records through an online portal. Patients can schedule video visits for convenient remote care. The organization also features a team of doctors and specialists, providing coordinated care. Additional services include e-check-in and support for managing healthcare through a digital platform.
- Jan 2011Conventional Debt$150K
- Nov 2010Conventional Debt$195K
- Dec 2007Post IPO$1.2M
#8
Acqui-Hired · Georgetown, South Carolina · founded 2007 · 11 employees$618.5Kraised▾
Renewed World Energies manufactures and supplies Small Scale Testing and Evaluation System for algae cultivation, Photo-Bioreactor System for algae production and products from algae like biomass, and oil. The algae products can be used for power generation, as an ingredient in pharmaceuticals and cosmetics, as an organic animal/aquatic feed, manufacture of organic fertilizer. The company also provides services like hardware and software technology for algae production, power process design, consulting and technical advisor, operations and production management, and training, secure internet monitoring software. The company has also formed partnership/alliance with four companies viz Envara, FCStone, Emerald Biofuels, and Algae Energae.
- Oct 2009Seed$618.5K
#9
Acqui-Hired · Greenville, South Carolina · founded 2002 · 49 employees$500Kraised▾
AssetPoint provides asset management and computerized maintenance management software solutions for enterprises and SMBs. Its product offerings include TabWare EMA-CMMS solutions for oil and gas, food and beverage, Industrial Manufacturing, Mining Metals and Chemical Manufacturing Cross Roads Integration business integration solution Metric Reporting and maintenance Business Intelligence solutions and Role-based solutions.
- Mar 2008Venture Debt$4.3M
- Mar 2008Seed$500K
#10
Funding Raised · Moncks Corner, South Carolina · founded 1934 · 1600 employees—raised▾
Energy monitoring solution. It helps you view your energy use, compare your bills with other customers, sign up for payment notifications, pay your bill and more. Its mobile app is available for both the iOS and Android platforms.
#11
Seed · Greenwood, South Carolina · founded 2023—raised▾
Manufacturer and provider of solar PV cell modules. The platform offers PERC solar cells that captures sunlight and converts it into electricity. It also offers heterojunction and topcon solar cells.
- Mar 2024Seed—
#12
Acquired · Charleston, South Carolina · founded 2009 · 73 employees—raised▾
Compassionate funeral services and pre-planning in the Tri-County area. Dedicated to providing compassionate funeral services to families, offering support in Berkeley, Charleston, and Dorchester Counties. Since its establishment, the company has been committed to helping families plan meaningful celebrations of life. Services include funeral planning, pre-need arrangements, and grief resources. The aim is to listen to families' wishes and create personalized tributes. They offer a range of services to meet diverse needs and customs, ensuring every detail is handled with care. They provide resources and support to help families navigate difficult times. They are committed to safety and health, taking extra precautions to protect families and staff. They offer guidance on grief support and assistance with sending flowers.
- Jun 2019Grant (prize money)—
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
How research on Grid Energy Storage is moving in the United States
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 5,941 United States-affiliated papers.
- Electric Power Research Institute204
- Pacific Northwest National Laboratory202
- Argonne National Laboratory193
- Northeastern University151
- Massachusetts Institute of Technology124
- Battery (electricity)57→359
- Electrolyte37→318
- Electrochemistry30→240
- Cathode32→224
- Anode37→209
- Renewable energy40→492
- Battery (electricity)59→507
- Power (physics)8→227
- Electrolyte27→244
- Electrochemistry37→240
- Battery (electricity)35→184
- Renewable energy24→156
- Electrolyte13→114
- Electrochemistry10→80
- Cathode9→72
Where energy storage 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 storage patents in the United States
United States energy storage patent filing is accelerating — 8,522 filings from 3,681 assignees (2016–2025), led by General Electric, ESS Technology, GM Global TECH Operations; annual filings 687→1058.
- General Electric592
- ESS Technology276
- GM Global TECH Operations233
- Fastcap Systems205
- UNIV California180
- Rondo Energy157
- United Technologies154
- Battelle Memorial Institute146
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.