ESS Tech Overview
- Year Founded
-
2011
- Status
-
Public
- Employees
-
70
- Stock Symbol
-
GWHT
- Investments
-
3
- Share Price
-
$0.07
- (As of Friday Closing)
ESS Tech General Information
Description
ESS Tech Inc is a long-duration energy storage company specializing in iron flow battery technology. It develops and manufactures long-duration energy storage systems based on iron flow battery technology. The company's batteries use earth-abundant materials, including iron, salt, and water, and are designed for high cycle life and recyclability. It operates as a single business operating segment, which includes all activities related to the design, engineering, and manufacturing of the company's long duration energy storage products. The company's revenue is derived from the sale of its energy storage products and from service contracts.
Contact Information
Website
www.essinc.comCorporate Office
- 26440 Southwest Parkway Avenue
- Building 83
- Wilsonville, OR 97070
- United States
Corporate Office
- 26440 Southwest Parkway Avenue
- Building 83
- Wilsonville, OR 97070
- United States
ESS Tech Timeline
ESS Tech Stock Performance
As of 13-Nov-2026, ESS Tech’s stock price is $0.07. Its current market cap is $2.84M with 40.3M shares.
(As of Friday Closing)
| Stock Price | Previous Close | 52 wk Range | Market Cap | Shares | Average Volume | EPS |
|---|---|---|---|---|---|---|
| $0.07 | $0.09 | $0.01 - $3.41 | $2.84M | 40.3M | 892K | -$2.93 |
ESS Tech Financials Summary
As of 30-Jun-2026, ESS Tech has a trailing 12-month revenue of $415K.
|
In Thousands, USD |
TTM 30-Jun-2026 | FY 2025 31-Dec-2025 | FY 2024 31-Dec-2024 | FY 2023 31-Dec-2023 |
|---|---|---|---|---|
| EV | 27,919 | 44,298 | 16,839 | 75,633 |
| Revenue | 415 | 1,583 | 6,295 | 7,540 |
| EBITDA | (51,308) | (52,245) | (84,996) | (76,327) |
| Net Income | (65,833) | (63,440) | (86,222) | (77,578) |
| Total Assets | 32,476 | 51,172 | 71,813 | 143,232 |
| Total Debt | 17,458 | 21,179 | 1,692 | 2,538 |
ESS Tech Valuation & Funding
| Deal Type | Date | Amount | Valuation/ EBITDA |
Post-Val | Status | Debt |
|---|
ESS Tech Related Research & Analysis
Explore institutional-grade private market research from our team of analysts.
-
Verticals
ESS Tech Patents
ESS Tech Recent Patent Activity
| Publication ID | Patent Title | Status | First Filing Date | Technology (CPC) | Citations |
|---|---|---|---|---|---|
| EP-4832124-A1 | Passive intertank volume and charge rebalancing system for redox flow battery | Pending | 23-Apr-2025 | ||
| EP-4794035-A1 | Flow battery cell design | Pending | 18-Feb-2025 | ||
| WO-2026175650-A1 | Flow battery cell design | Pending | 18-Feb-2025 | ||
| EP-4730451-A1 | Electrochemical rod reactor | Pending | 16-Oct-2024 | ||
| EP-4726368-A1 | Optical sensor for iron salt battery operation | Pending | 11-Oct-2024 | G01N21/31 |
ESS Tech Signals
Growth Rate
Growth
Size Multiple
Key Data Points
Similarweb Unique Visitors
Majestic Referring Domains
ESS Tech Investors
| Investor Name | Investor Type | Holding | Investor Since | Participating Rounds | Contact Info |
|---|
ESS Tech Investments & Acquisitions (3)
ESS Tech’s most recent deal was a Corporate Asset Purchase with VoltStorage (Intellectual Property and Assets). The deal was made on 18-Feb-2026.
| Company Name | Deal Date | Deal Type | Deal Size | Industry | Lead Partner |
|---|---|---|---|---|---|
| VoltStorage (Intellectual Property and Assets) | 18-Feb-2026 | Corporate Asset Purchase | Buildings and Property | ||
| Prevalon Energy | 01-Jan-2024 | Joint Venture | Energy Storage | ||
| ACON S2 Acquisition | 11-Oct-2021 | Merger/Acquisition | Special Purpose Acquisition Company (SPAC) |
ESS Tech ESG
Risk Overview
Risk Rating
Updated November, 04, 2026
37.78 | High Risk
Risk Scale
A lower score indicates better sustainability
Negl
0-10
Low
10-20
Med
20-30
High
30-40
Severe
40+
Exposure
Exposure refers to the extent to which a company is exposed to different material ESG issues
Management
Management is related to actions taken to manage ESG issues
Peers Analysis
Peer performance insights compare the company’s ESG performance to the performance of selected peers to help inform future ESG decisions and drive internal performance improvements.
Global
Covered Companies
of 13,592
Rank
Percentile
Electrical Equipment
Industry
of 280
Rank
Percentile
Electrical Equipment
Subindustry
of 280
Rank
Percentile
ESS Tech Exits (1)
ESS Tech’s most recent exit was on 01-Jan-2024 from Prevalon Energy. The exit was categorized as with 2 buyers.
| Company Name | Exit Date | Exit Type | Exit Size | Status | Buyers |
|---|---|---|---|---|---|
| Prevalon Energy | 01-Jan-2024 | Completed |
|
ESS Tech FAQs
-
When was ESS Tech founded?
ESS Tech was founded in 2011.
-
Where is ESS Tech headquartered?
ESS Tech is headquartered in Wilsonville, OR.
-
What is the size of ESS Tech?
ESS Tech has 70 total employees.
-
What industry is ESS Tech in?
ESS Tech’s primary industry is Electrical Equipment.
-
Is ESS Tech a private or public company?
ESS Tech is a Public company.
-
What is ESS Tech’s stock symbol?
The ticker symbol for ESS Tech is GWHT.
-
What is the current stock price of ESS Tech?
As of 13-Nov-2026 the stock price of ESS Tech is $0.07.
-
What is the current market cap of ESS Tech?
The current market capitalization of ESS Tech is $2.84M.
-
What is ESS Tech’s current revenue?
The trailing twelve month revenue for ESS Tech is $415K.
-
What is ESS Tech’s annual earnings per share (EPS)?
ESS Tech’s EPS for 12 months was -$2.93.
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