Filing Flows › ESS Tech (GWH) › Q2 2025
ESS Tech (GWH) Q2 2025 earnings results (second quarter 2025)
10-Q filed Aug 14, 2025
ESS Tech (GWH) reported revenue of $2.4M for the second quarter 2025 (Q2 2025), +578% from a year earlier and +294% from the quarter before. Operating margin was -490.1%, net loss $11.1M (468.9% of revenue).
ESS Tech, Q2 2025: revenue $2.4M (+578% year over year), operating margin -490.1%, net loss $11.1M, operating cash flow −$12.4M. The chart follows the revenue to costs, profit and cash.
| Q2 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $2.4M | +294% | +578% |
| Operating profit | −$11.6M | — | — |
| Net earnings | −$11.1M | — | — |
| Operating cash flow | −$12.4M | — | — |
What changed
Revenue was $2.4M in Q2 2025, up 578% year over year and up 294% from the previous quarter.
Operating costs exceeded revenue by $11.6M, an operating margin of -490.1%. Total costs fell 41% while revenue rose 578%. The quarter ended with a net loss of $11.1M, narrower than the previous quarter's $18.0M loss.
Operating cash flow was −$12.4M. Non-cash charges added back $1.5M of depreciation and amortization and $1.5M of share-based compensation. Working capital and other items used $4.3M. Capital expenditures of $729K exceeded it, leaving free cash flow of −$13.1M.
Questions
What was ESS Tech's revenue in the second quarter 2025?
ESS Tech (GWH) reported revenue of $2.4M for the second quarter 2025 (Q2 2025), +578% from a year earlier and +294% from the quarter before.
Was ESS Tech profitable in the second quarter 2025?
Operating loss was $11.6M (-490.1% of revenue) and net loss $11.1M.
Source: ESS Tech 10-Q on SEC EDGAR.