Ioxus a leading developer and manufacturer of ultracapacitors and energy storage products, such as intelligent power and energy storage technology for transportation, alternative energy, medical, industrial and grid-connected markets.

Ioxus produces ultracapacitors for use in hand-held communication devices, wireless monitoring systems, accelerate hybrid vehicles, and assist material handling equipment.

Ioxus was founded in 2006 by Chad Hall and is based in Oneonta, New York, with an additional office in Japan. The company serves customers worldwide.

Ioxus is devoted exclusively to providing environmentally friendly products for use in a range of applications, UPS, wind turbines, industrial and automotive needs. By simplifying integration with packaged modules, Ioxus is assisting customers in generating end products faster, allowing for a quicker market adoption of the ultracapacitor technology. Ioxus cells are UL listed, and ready for use in your applications.

Ioxus products include iCAP ultracapacitors, iMOD modules, and THiNCAP, these are optimized for higher power density, higher energy density, and voltage levels that provide simple solutions for our customers to incorporate our products easily. 


Ioxus products are used in hybrid cars, buses, rail, wind turbines, LED lighting, and medical applications. The company pairs industry leading manufacturing expertise with extensive engineering resources to bring some of the best products in the world to the market.


Ioxus investors include Cayuga Venture Fund, The Westly Group, Aster, & Braemar Energy Ventures among others. The company raised $2M in its most recent "Debt Financing" round on Apr 8, 2019. This brings Ioxus total funding to $163.5M to-date.



  • Year founded: 2007
  • Funding Info: $163.5M in 9 Funding Rounds (Last Funding Type: Debt Financing)
  • Yearly Revenue: $50M- $100M (2018)
  • Employee Size: 51-200
  • Business Valuation: NA
  • City/Town: Oneonta
  • State: New York
  • Country: United States
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