What is Ioxus?
Founded in 2006 and headquartered in Oneonta, New York, Ioxus specializes in the design and manufacture of advanced ultracapacitor technology. These components are critical for high-power applications where traditional batteries fall short, offering rapid charge and discharge capabilities essential for modern transportation, alternative energy grids, and industrial automation. By bridging the gap between power density and energy efficiency, Ioxus has positioned itself as a vital player in the global transition toward sustainable energy infrastructure and electrified mobility.
How much funding has Ioxus raised?
Ioxus has raised a total of $48.3M across 6 funding rounds:
Series A
$3M
Unspecified
$1.7M
Unspecified
$200K
Series B
$20.8M
Series C
$21M
Debt
$1.6M
Series A (2008): $3M, investors not publicly disclosed
Unspecified (2008): $1.7M led by NYSERDA
Unspecified (2009): $200K supported by NYSERDA
Series B (2012): $20.8M featuring Energy Technology Ventures, Northwater Capital, Aster Capital, and Braemar Energy Ventures
Series C (2014): $21M backed by Braemar Energy Ventures, The International Finance Corporation, The Westly Group, Energy Technology Ventures, Aster Capital, and Northwater Capital Management
Debt (2016): $1.6M, investors not publicly disclosed
Key Investors in Ioxus
Energy Technology Ventures
A collaborative investment firm formed by GE, NRG Energy, and ConocoPhillips, focusing on venture and growth-stage companies in renewable power and energy efficiency.
Aster Capital
A venture capital firm acting as a business hub for startups in the energy, smart industry, and mobility sectors, providing both capital and industrial market access.
Braemar Energy Ventures
An investment firm dedicated to driving the energy transition by backing innovative companies in sectors like EV infrastructure, carbon capture, and energy management.
What's next for Ioxus?
Looking ahead, the strategic deployment of capital will likely focus on deepening the company's penetration into high-growth markets such as smart grid management and heavy-duty electric vehicle systems. Given the historical involvement of major energy-focused venture firms, Ioxus is well-positioned to leverage its existing partnerships to accelerate product commercialization. The focus remains on scaling production to meet the rising demand for reliable, long-cycle energy storage, ensuring the company remains at the forefront of the industrial technology revolution.
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