Fundraising FoxESS Tech
NYSE: GWHWilsonville, US · Founded 2021 · Delaware corporation
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ESS Tech designs and manufactures long-duration iron flow batteries using salt, iron, and water-based electrolytes for grid-scale and behind-the-meter energy storage applications serving utilities, power providers, and commercial and industrial customers.
Founders & leadership
AR
Anthony RabbExecutiveHe previously held CFO and finance executive roles at multiple billion-dollar private equity-backed and public companies across manufacturing, services, technology, and clean energy, and spent 15 years in General Electric's finance organization and leadership training programs.
EP
Eric P DresselhuysExecutive
Board
KT
Kyle TeameyBoard director
RH
Rich HossfeldBoard director
RG
Raffi GarabedianBoard director
SN
Sandeep NijhawanBoard director
AW
Alexi WellmanBoard director
MN
Michael NiggliBoard director
HQ
Harry QuarlsBoard director
Funding
SEC filings, press & company announcements$31.6M disclosed across 3 of 4 rounds · 2023–2026
▶$900KraisedJul 2025 · 7 investors · ManufacturingRule 506(b)
▶$900KraisedJul 2025 · 7 investors · Manufacturing
Rule 506(b)Officers, directors & promoters on the filing
- Raffi GarabedianDirector
- Sandeep NijhawanDirector
- Alexi WellmanDirector
- Anthony RabbExecutive Officer
- Kyle TeameyDirector
- Rich HossfeldDirector
- Michael NiggliDirector
- Kelly GoodmanExecutive Officer
- Harry QuarlsDirector
- Offering amount
- $900K
- Amount sold
- $900K
- Minimum investment
- $585K
- First sale
- Jul 2025
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
▶$27.5MraisedSep 2023 · 1 investors · CommercialRule 506(b)
▶$27.5MraisedSep 2023 · 1 investors · Commercial
Rule 506(b)Officers, directors & promoters on the filing
- Harry QuarlsDirector
- Sandeep NijhawanDirector
- Rich HossfeldDirector
- Michael R NiggliDirector
- Kyle TeameyDirector
- Eric P DresselhuysExecutive Officer, Director
- Alexi WelmanDirector
- Anthony RabbExecutive Officer
- Offering amount
- $27.5M
- Amount sold
- $27.5M
- Minimum investment
- $27.5M
- First sale
- Sep 2023
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Frequently asked questions
- What does ESS Tech do?
- ESS Tech designs and manufactures long-duration iron flow batteries using salt, iron, and water-based electrolytes for grid-scale and behind-the-meter energy storage applications serving utilities, power providers, and commercial and industrial customers.
- How much funding has ESS Tech raised?
- ESS Tech has disclosed $31.6M raised across 3 of its 4 known rounds.
- Where is ESS Tech headquartered?
- ESS Tech is headquartered in Wilsonville, US.