Best Clean Energy Companies Suppliers in United States
Discover a comprehensive list of specialized clean energy solutions, including solar, wind, and waste-to-energy technologies from leading companies across the United States.
Clean EnergySolarWindWaste-to-EnergyRenewables
Dynapower Company, LLC
🇺🇸 United States
1963101-200 peopleManufacturer/Service CompanyEstablished brand
OEM manufacturer
Product customization
Patented technology
Shipments
96
Key customer
NEWEN SYSTEMS
Key market
🇮🇳 India
Description
Dynapower Company, LLC, a part of Sensata Technologies, is a leading US-based manufacturer and service company specializing in energy storage and power conversion systems. Established in 1963, the company operates a 150,000 square-foot vertically integrated facility in South Burlington, Vermont, where it designs, manufactures, and tests its products. With 101 to 200 employees, Dynapower has deployed over 45,000 power conversion units and delivered 2 gigawatts of clean energy systems globally, with products installed on five continents and in over 60 countries. The company is ISO 9001 and UL certified, and ITAR registered, ensuring high quality and compliance. Dynapower's core product lines include Hydrogen Power Systems (electrolyzer power supplies, fuel cell inverters), Energy Storage Systems (utility scale, behind the meter, DC coupled, for EV charging), Rectifiers (SCR, switch mode, high power, controls), Transformers, and Frequency Converters. They offer both standard and custom-engineered solutions, ranging from 10 kilowatts to 50 megawatts, serving diverse markets such as hydrogen production, e-mobility, industrial applications (metal finishing, mining, steel, chlor-alkali), and government/defense. Dynapower also provides extensive aftermarket services, including 24/7 technical support, field service, preventative maintenance, repairs, and upgrades.
Thyristor Rectifier
Fuel Cell Inverters
IGBT Boost Rectifier
IGBT Chopper Rectifier
Trax Industrial Products Corp
🇺🇸 United States
19785-10 peopleManufacturer/Wholesaler/DistributorEstablished brand
OEM manufacturer
Product customization
Industry association member
Shipments
24
Key customer
ADIDAS
Description
Trax Industrial Products Corp, established in 1978 and based in Loomis, California, is a custom manufacturer, wholesaler, and distributor specializing in environmental control and containment solutions. With a team of 5-10 employees and an estimated annual revenue between $500,000 and $4.9 million, the company has evolved from a manufacturing representative to a full-fledged manufacturer operating a factory since 1998. They are recognized as an industry leader in airflow management and containment solutions, serving a global customer base that includes prominent organizations like MIT, NASA, Boeing, and Siemens. Trax Industrial Products Corp offers a comprehensive range of custom-fabricated products, including data center containment solutions (hot aisle/cold aisle curtains), cleanroom curtains (softwall, portable, hardwall), laser barrier curtains, industrial curtain walls, plastic strip doors, and airport draft curtains. They also provide bulk roll materials, back flow covers, welding screens, and air doors. All products are custom manufactured using high-quality flexible vinyl materials, with test data available for anti-static and flame spread properties. The company emphasizes custom fabrication to meet specific customer application needs and holds a BBB Accreditation.
Data center containment solutions
Data center containment solutions
CF Technologies, Inc.
🇺🇸 United States
198911-50 peopleManufacturer/Service CompanyEstablished brand
OEM manufacturer
ODM manufacturer
Product customization
Shipments
8
Key customer
STANDARD ROLLING MILLS
Key market
🇺🇸 United States
Description
CF Technologies, Inc. is a specialized manufacturer and engineering services provider headquartered in Boston, Massachusetts. Founded in 1989, the company is a recognized leader in supercritical fluid processing, offering turnkey systems integration and custom manufacturing for critical fluid technologies. With over 35 years of expertise, they specialize in CO2 extraction, fractionation, separation, and chromatography systems, serving a diverse clientele that includes the U.S. Department of Energy, NASA, and major research universities like MIT and Princeton.
The company operates a comprehensive facility in Hyde Park, MA, featuring in-house engineering, fabrication, and welding shops. Their core product line includes ASME Code Stamped and National Board Certified pressure vessels, notably the proprietary DurOLok quick-acting closure vessels. CF Technologies provides scalable solutions ranging from bench-scale and pilot-scale extractions to full production systems. Their technical capabilities extend to the design of heat exchangers, storage tanks, and welding skids, as well as providing toll processing and process engineering consulting.
As a process innovator, CF Technologies is active in sustainable technology development, including rare earth element purification and the conversion of waste streams into biofuels. The company holds an extensive patent portfolio and maintains rigorous quality standards, including ASME and CRN certifications. They primarily serve the clean technology, environmental services, and specialized machinery sectors, focusing on delivering custom-engineered solutions for complex chemical and process engineering challenges.
Aerogel systems, Extraction and Fractionation systems, parts cleaning systems
Aerogel systems, Extraction and Fractionation systems, parts cleaning systems
4,500 psi pilot scale research and production system with fractionation, separation and CO2 recirculation
4,500 psi pilot scale research and production system with fractionation, separation and CO2 recirculation
15,000 psi R&D Extraction system with 10,000 psi Fractionation capability
DurOLok Closure Vessels
5L, 10L, 20L, 100L, 200L in pressure varieties: 2500psi, 5000 psi, 10000 psi, 15000 psi
Individual skids for shipment, to be joined at installation site
5L, 10L, 20L, 100L, 200L in pressure varieties: 2500psi, 5000 psi, 10000 psi, 15000 psi
Custom horizontal pressure vessel open and close mechanism for heavy heads made from stainless steel.
Other sizes and pressures are available for custom design!
Other sizes and pressures are available for custom design!
Consolidated Electrical Distributors, Inc.
🇺🇸 United States
19575001-10000 peopleDistributor/Wholesaler/Service CompanyEstablished brand
Large enterprise group
Eco-friendly supplier
Multinational enterprise
Shipments
67
Key customer
TLAPALERIA Y FERRETERIA RODRIGUEZ
Key market
🇲🇽 Mexico
Description
Consolidated Electrical Distributors, Inc. (CED) is one of the largest privately owned electrical distributors in the United States. Founded in 1957 and headquartered in Eugene, Oregon, the company has grown from a small California-based operation into a massive national network with over 700 locations. CED operates under a decentralized business model, empowering local managers to tailor their inventory and services to the specific needs of their regional industrial, commercial, and residential clients. The company employs between 5,001 and 10,000 people and maintains a strong reputation for financial stability and reliability.
As a comprehensive B2B wholesaler, CED provides an extensive range of electrical solutions and industrial automation equipment. Their product portfolio includes electrical cables, circuit breakers, switchgear, transformers, and motor control gear. Specialized divisions such as the Industrial Solutions Network and CED Greentech offer technical consultancy and renewable energy products, including solar panels and EV charging infrastructure. They partner with leading global manufacturers such as ABB, Schneider Electric (Square D), Eaton, and Lutron to supply high-quality components for power distribution, lighting, and home automation systems.
Beyond domestic distribution, the company maintains significant export capabilities through its international divisions, serving diverse sectors including power plants, mining, and rail projects across Europe, the Middle East, and Asia. CED provides value-added services such as custom product bundling, technical support for manufacturing modernization, and online procurement portals for order tracking and quoting. Their commitment to quality is reflected in their long-standing partnerships with OEMs and control panel builders worldwide.
ABB Fuses
Belden Equivalent 600V Data Cable
ABB Enclosed Isolators
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EIG Global Energy Partners
🇺🇸 United States
1982101-200 peopleService Company/ManufacturerEstablished brand
OEM manufacturer
Product customization
Shipments
5
Key customer
SEVENSEAS
Key market
🇺🇸 United States
Description
EIG Global Energy Partners is a prominent investment firm and service provider specializing in the global energy and infrastructure sectors. Headquartered in Washington, D.C., with a significant international presence across six continents, the company operates as an independent partnership with a history dating back to 1982. The firm manages over $24 billion in assets and has committed more than $51 billion to hundreds of projects across 44 countries. Their core expertise lies in private investments, including private credit, private equity, and infrastructure funds, where they provide customized capital solutions ranging from senior debt to common equity for energy-related projects.
In addition to its investment activities, the organization maintains a strong focus on energy management and technical services. Operating with a team that includes specialized investment professionals and engineers, the company provides independent consultancy, energy contract procurement, and utility revenue recovery. They serve a diverse client base including educational institutions, healthcare facilities, and large-scale industrial corporations like Saudi Aramco and Toyota. The firm is also involved in the manufacturing sector, specifically focusing on non-domestic cooling and ventilation equipment. This includes the production of industrial ventilators, fans, and aeration systems for commercial applications. By combining financial expertise with technical manufacturing and energy monitoring capabilities, the company helps clients optimize energy consumption, achieve carbon savings, and manage complex infrastructure assets.
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SUNPLUS OPTIMUM INC
🇺🇸 United States
202251-100 peopleManufacturer/Trading Company/DistributorOEM manufacturer
ODM manufacturer
Product customization
Multinational enterprise
Key customer
THE ENERGY PANAMA
Key market
Europe
Review
5
Description
SUNPLUS OPTIMUM INC is a premier American solar energy manufacturer and distributor headquartered in Albany, New York. Established in 2022, the company has rapidly emerged as a significant force in the renewable energy sector, specializing in the production of high-efficiency photovoltaic (PV) modules, advanced energy storage systems (ESS), and solar inverters. Operating with a global production capacity of 6.5GW for modules and 2GWh for LFP batteries, the company serves developers, contractors, and EPCs across North America, South America, and Western Europe.
The company's extensive product portfolio features cutting-edge solar technologies, including N-type, HJT, TOPCon, and Shingled solar cells. Their PV modules, which range from 400W to 800W, include specialized options such as the LYCHEE N Series, bifacial panels, and Building Integrated Photovoltaics (BIPV) like solar cell roof tiles. For energy storage, SunPlus offers residential and commercial LiFePO4 battery packs, including liquid-cooled systems and modular 5kWh units that are parallelizable for large-scale utility use. Their inverter line encompasses microinverters, string inverters, and hybrid systems.
SunPlus emphasizes quality and supply chain reliability, manufacturing products under Bloomberg Tier 1 guidelines and maintaining CSA and UL certifications for seamless integration into the American market. As a contract manufacturer (OEM/ODM) with a domestic assembly presence, the company leverages four strategic warehouse facilities in California, New Jersey, and Texas to ensure efficient distribution. With a dedicated team of 51 to 100 employees, SUNPLUS OPTIMUM INC is committed to empowering the solar revolution through precision-crafted, high-performance energy solutions.
Sunplus 25KW Hybrid Solar System | 5.12kWh LiFePO4 Battery | Clean Energy for Grid Connection$5000
High Efficiency 450W Full Black Dual Glass N-Type Bifacial Solar Panel for Clean Energy$49
SUNPLUS 710W HJT Bifacial Solar Panel New Energy High Efficiency Product$74.55
SUNPLUS 625W Bifacial N-Type New Energy Solar Panel High Efficiency Product$65.62
20KW High-Efficiency Solar Energy System with LiFePO4 Battery Energy Storage and Inverter$6000
5KW High-Efficiency Solar Energy System with LiFePO4 Battery Energy Storage and Inverter$1500
12KW High-Efficiency Solar Energy System with LiFePO4 Battery Energy Storage and Inverter$3600
6KW Smart High-Efficiency Solar Energy System with LiFePO4 Battery Energy Storage and Inverter$1800
5KW Smart High-Efficiency Solar Energy System with LiFePO4 Battery Energy Storage and Inverter$1500
12KW Smart High-Efficiency Solar Energy System with LiFePO4 Battery Energy Storage and Inverter$3600
Sunplus 5KW Complete On-Grid Solar Energy System MPPT Controller Monocrystalline Silicon Solar for household solar energy system$1560
SUNPLUS 6KW Renewable Solar Energy Storage System$1508.56
Alkegen
🇺🇸 United States
18915001-10000 peopleManufacturer/DistributorHigh capacity factory
Established brand
Large enterprise group
Own brand
Shipments
693
Key customer
UNIFRAX
Key market
🇮🇳 India
Description
Alkegen is a global leader in high-performance specialty materials, formed through the merger of industry pioneers Unifrax and Lydall. Headquartered in the United States, the company operates a massive global footprint with over 60 manufacturing facilities and a workforce of approximately 9,000 employees. Alkegen is a vertically integrated manufacturer specializing in mission-critical solutions that enhance energy efficiency, pollution control, and fire safety across diverse sectors including automotive, aerospace, energy, medical, and industrial manufacturing.
The company's extensive product portfolio is organized into several core divisions. Their Battery Products include advanced in-cell solutions like SiFAB (silicon fiber anode material) and Inovion, alongside in-pack thermal barriers and electrical protection systems for electric vehicles. In the realm of insulation and fire protection, Alkegen offers industry-leading brands such as Fiberfrax, Insulfrax, and FyreWrap, providing high-temperature ceramic fiber blankets, aerogel insulation, and fire-rated enclosures. Their Filtration and Catalysis division delivers high-efficiency media, industrial filter bags, and catalytic filter candles designed to remove pollutants from industrial gases.
Alkegen maintains rigorous quality standards, holding certifications such as IATF 16949 and ISO/TS 16949:2002. With a history of innovation dating back to 1891 through its legacy brands, the company continues to drive advancements in material science, including PFAS-free filtration solutions and cryogenic insulation. Their global trade network serves major international markets across North America, Europe, South America, and Asia, supporting a prestigious client base that includes global automotive OEMs and industrial leaders.
Energy Storage Systems
Energy Storage Systems
Scale
Design
Battery OEMs
Scale
Inovion
Inovion
Rubber Pipe Insulation Split with DoubleSeal (1/2" Thick)
FyreWrap LiB Films
FyreWrap LiB Thermal Barriers
SiFAB
Sigma Thermal, Inc.
🇺🇸 United States
200751-100 peopleManufacturer/Distributor/Service CompanyProduct customization
Multinational enterprise
Eco-friendly supplier
OEM manufacturer
Shipments
72
Key customer
E INFOCHIPS
Key market
🇮🇳 India
Description
Sigma Thermal, Inc. is a leading manufacturer and turnkey systems integrator specializing in industrial process heating systems. Founded in 2007 and headquartered in Marietta, Georgia, the company operates a dedicated manufacturing facility and maintains a global presence with offices in Houston, India, Dubai, and the United Kingdom. Sigma Thermal provides a comprehensive range of engineered solutions, including thermal fluid heating systems, electric process heaters, direct-fired heaters, and process bath heaters. The company is also a specialist in sustainable energy solutions, offering biomass energy systems and industrial waste heat recovery systems designed to optimize plant efficiency.
As an ISO 9001:2015 certified organization, Sigma Thermal adheres to rigorous quality standards, with products designed to meet ASME Section VIII, CE, UL, CSA, and PED requirements. Their capabilities extend beyond equipment manufacturing to include custom automation and safety control systems, burner management, and extensive aftermarket support such as field services, retrofits, and technical training. The company serves a diverse array of industries, including oil and gas, petrochemical, power generation, food and beverage, and aerospace. Through its family of brands, including FlareTec and GTS Energy, Sigma Thermal delivers deep engineering expertise and practical field experience to support complex industrial heating applications worldwide.
Waste Heat Recovery Systems
Cannon Water Technology, Inc.
🇺🇸 United States
1985201-300 peopleTrading Company/Manufacturer/Distributor/Service CompanyEstablished brand
OEM manufacturer
Own brand
Product customization
Shipments
5
Key customer
SIPROFISA
Key market
North America
Description
Cannon Water Technology, Inc. is a US-based manufacturer, distributor, trading company, and service provider specializing in commercial and industrial water treatment solutions. Founded in 1985, the company operates with 201-300 employees and holds ISO 9001 certification. They offer a comprehensive range of water treatment chemicals, equipment, and services, including custom manufacturing and contract manufacturing roles. Their extensive product portfolio covers water treatment chemicals (biocides, boiler, cooling water, sanitization), various types of pumps (metering, diaphragm, peristaltic), and a wide array of water treatment equipment such as flow meters, water quality meters, reverse osmosis systems, UV light disinfection systems, boiler and cooling tower water treatment systems, chemical storage tanks, level sensors, process analyzers, filtration systems, and remote monitoring software. Cannon Water Technology, Inc. provides solutions for diverse applications including cooling towers, steam boilers, and closed hydronic systems, serving industries such as chemical processing, food and beverage, general manufacturing, metal, mining, oil & gas, pharmaceutical, and power generation. They also offer engineering and technical support, building custom solutions, and distributing products from numerous recognized brands.
Twist II Clean Filters
Twist II Clean Filters
Vector Industries
FOLIOTESTITEM2
Eno Scientific Well Monitoring Systems
Stenner Pumps
FOLIOTESTITEM2
Stenner Pumps
Eno Scientific Well Monitoring Systems
Eddington Industries
Vector Industries
Eddington Industries
Catalyst Product Development Group, Inc.
🇺🇸 United States
199911-50 peopleManufacturer/Service CompanyEstablished brand
OEM manufacturer
ODM manufacturer
Product customization
Key customer
CREATIVE PERSPECTIVE
Key market
🇺🇸 United States
Description
Catalyst Product Development Group, Inc. is a vertically integrated manufacturer and product development firm headquartered in Indianapolis, Indiana. Founded in 1999, the company operates from a 28,000-square-foot design and manufacturing center, specializing in mind-to-market solutions for diverse industries including medical devices, aerospace, automotive, telecommunications, and consumer electronics. As an ISO 9001:2015 certified organization, they provide a comprehensive suite of services ranging from industrial design and mechanical engineering to rapid tooling and injection molding.
The company distinguishes itself through its 100% Made in the USA production, offering in-house creative design, materials expertise, and state-of-the-art tooling. Their manufacturing capabilities include plastic injection molding, electrical discharge machining (EDM), and additive manufacturing. Catalyst PDG is particularly adept at project acceleration, providing rapid prototyping, pilot production, and short-run manufacturing to help clients achieve faster speed-to-market. They also specialize in the development of connected devices and IoT technology, assisting clients with data collection and real-time dashboard integration.
With a team of approximately 30 to 50 professionals, Catalyst PDG serves as an extension of client internal resources, having developed products for over 1,200 companies, including global brands such as Kraft Heinz, Goodyear, Eli Lilly, and ThermoTek. Their facility is equipped with multiple injection molding presses and advanced CNC equipment, allowing them to manage entire programs from initial concept and intellectual property development through to final assembly and deployment.
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