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Founded Year



Debt - II | Alive

Total Raised


Last Raised

$2M | 5 yrs ago

About Ioxus

Ioxus is a company that focuses on the clean tech industry, specifically in the manufacturing of ultracapacitors and hybrid capacitors. The company's main offerings include energy storage solutions that are used in a variety of applications such as transportation, industrial, and power grid applications. These products are designed to provide reliable energy storage for hybrid cars, buses, rail, wind turbines, LED lighting, and medical applications. It was founded in 2007 and is based in Oneonta, New York.

Headquarters Location

18 Stadium Circle

Oneonta, New York, 13820,

United States




Expert Collections containing Ioxus

Expert Collections are analyst-curated lists that highlight the companies you need to know in the most important technology spaces.

Ioxus is included in 1 Expert Collection, including Energy Storage.


Energy Storage

1,238 items

Companies in the Energy Storage space, including those developing and manufacturing energy storage solutions such as lithium-ion batteries, solid-state batteries, and related software for battery management.

Ioxus Patents

Ioxus has filed 26 patents.

The 3 most popular patent topics include:

  • battery types
  • capacitors
  • energy storage
patents chart

Application Date

Grant Date


Related Topics




Electric power conversion, Analog circuits, Voltage regulation, Electrical engineering, Electronic circuits


Application Date


Grant Date



Related Topics

Electric power conversion, Analog circuits, Voltage regulation, Electrical engineering, Electronic circuits



Latest Ioxus News

PART 3: Scottie Johnson expands beyond batteries into new investment areas

Oct 12, 2022

PART 3: Scottie Johnson expands beyond batteries into new investment areas on October 11 th, 2022 (EDITOR’S NOTE: This is the final article in a series spotlighting Scottie Johnson, a Knoxville entrepreneur who turned his passion for boom cars into a thriving and ever-growing set of businesses.) By Tom Ballard, Chief Alliance Officer, PYA Scottie Johnson says one of his more recent enterprises was involved in what was a “new, relatively unknown technology” called ultracapacitors. Also known as supercapacitors or electrochemical capacitors, they are devices which are used for storing electrical energy and operate somewhere between an ordinary capacitor and a battery. If you’ve read previous articles in the series, you can understand Johnson’s interest. Ioxus Inc., the owner of IOXUS that manufactured a robust line of supercapacitors, planned to shut down the Oneonta, NY-based company, but the enterprising Knoxville entrepreneur got wind of the news and was intrigued by the possibilities. The initial asking price, which included 100,000 square feet of manufacturing space in New York and Japan, was too high. Over time, Johnson (pictured right) said the “opportunity (financial terms) kept getting more favorable, so I decided to take a look.” He liked what he saw and, after an extensive six-month process to make the deal happen, Johnson added IOXUS to his portfolio in October 2020. “That increased our production capacity dramatically,” he explained. Also added in 2020 was Trustfall Production Group (TFPG). Headquartered in Las Vegas with an office in Nashville, TFPG is a full service live event production and video integration (installation) company. Johnson says the company has two warehouses in Las Vegas and hopes to build a new facility in Knoxville. It recently completed a ceiling covered in LED screens at Resorts World in Las Vegas. Johnson began to explore options for adding space to his growing enterprise in Knoxville and learned that the building housing the Knoxville News Sentinel and presses that print a number of newspapers was on the market. “I contacted the broker who explained to me that the owner wanted to sell four properties as a package,” Johnson said. He obviously did not need all four, but Johnson was still intrigued by the large building. “One day I was driving by and saw it was still on the market, so I called the broker to inquire. He told me there was a deal in place,” Johnson said. About 30 minutes later, the broker called Johnson and said, “That deal fell through. If you can close by the end of 2021, you can have it.” Systematic Properties LLC, founded in 2021 as Johnson’s real estate arm, closed on the building December 23, 2021. While Gannett continues to lease much of the space that Johnson saw as warehousing for his businesses, the site includes 40,000 square feet of mostly open office space that he is marketing to businesses. The acquisition also included undeveloped land on the 22-acre site that has numerous possibilities. Is Johnson done with acquisitions? He says no, mentioning an upcoming addition to the enterprise in audio manufacturing. The soft-spoken native of Western Kentucky was bitten by the entrepreneurial bug at a young age, and he’s clearly continuing to pursue opportunities.

Ioxus Frequently Asked Questions (FAQ)

  • When was Ioxus founded?

    Ioxus was founded in 2007.

  • Where is Ioxus's headquarters?

    Ioxus's headquarters is located at 18 Stadium Circle, Oneonta.

  • What is Ioxus's latest funding round?

    Ioxus's latest funding round is Debt - II.

  • How much did Ioxus raise?

    Ioxus raised a total of $71.09M.

  • Who are the investors of Ioxus?

    Investors of Ioxus include Northwater Capital Management, Energy Technology Ventures, Aster Capital, Braemar Energy Ventures, Westly Group and 6 more.

  • Who are Ioxus's competitors?

    Competitors of Ioxus include Nesscap Energy and 4 more.


Compare Ioxus to Competitors

Lion Cells

Lion Cells develops battery technologies.

Amperex Technology

Amperex Technology Limited aims to be a premier energy solution provider for mobile devices. ATL is currently manufacturing Lithium Ion Polymer (LIP) battery cells in China. Per Amperex, LIP Battery is a key component in devices spanning from smart card, wrist watch, Bluetooth, MP3 and MP4 through mobile phone, PDA, Portable DVD player, Notebook PC to power tools, E-bike, scooters, UPS, HEV and EV.

Graphene Energy

Graphene Energy, founded in December 2008, hopes to make ultracapacitors out of graphene, sheets of pure, crystalline carbon. It is the brain child of Rod Ruoff, a professor at the University of Texas, and Xin Zhao. Some believe that ultracapacitors, which store energy and can potentially charge far faster than batteries, could charge electric car batteries while the cars tool down the road or replace batteries entirely.

Oy Finnish Electric Vehicles Technologies

FEVT offers large capacity solutions for storing electrical energy. The company's technology is based on Lithium-ion batteries and CCS, the company's intelligent Cell Control System. The focus of the company's operations is on applications in the medium- and heavy-duty vehicle, industrial and stationary equipment sectors.

International Battery

International Battery is a U.S. manufacturer, designer, and developer of large-format lithium-ion rechargeable cells and batteries.

Stratum Energy Systems

Stratum Technologies is a company to industrialize the manufacture of polymer lithium-ion batteries constructed in a stacked cell format. Its production facilities use automated, state-of-the art manufacturing processes to produce precise, high-performance, high-quality batteries in customers' desired formats.


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