Revenue
$73.00K
Fiscal year ended 2026-06-30Operating income
-$15.13M
Fiscal year ended 2026-06-30Free cash flow
-$9.44M
Fiscal year ended 2026-06-30ESS Tech, Inc. (GWH) reported revenue of $73.00K and net income of -$15.55M for the fiscal year ended 2026-06-30. This page shows 10 annual periods of income statement, balance sheet and cash flow figures normalized from ESS Tech, Inc.’s SEC filings, each linked to the filing it came from. It is classified by the SEC under Miscellaneous Electrical Machinery, Equipment & Supplies.
Income
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Revenue | $73.00K | $128.00K | -$1.59M | $214.00K | $2.36M | $599.00K | $2.85M | $359.00K | $348.00K | $2.74M |
| Cost of revenue | $7.49M | $7.17M | $8.11M | $4.94M | $7.46M | $8.75M | $16.04M | $12.74M | $11.75M | $11.13M |
| Gross profit | -$7.42M | -$7.04M | -$9.70M | -$4.72M | -$5.10M | -$8.15M | -$13.19M | -$12.38M | -$11.40M | -$8.39M |
| Operating income | -$15.13M | -$13.78M | -$17.89M | -$9.81M | -$11.56M | -$18.15M | -$23.50M | -$23.68M | -$23.12M | -$19.49M |
| Net income | -$15.55M | -$15.92M | -$23.98M | -$10.38M | -$11.06M | -$18.03M | -$23.48M | -$22.49M | -$21.94M | -$18.31M |
| Research & development | $2.20M | $2.62M | $3.37M | $1.03M | $1.42M | $2.48M | $2.71M | $2.68M | $2.84M | $3.55M |
| Weighted-average diluted shares | shares 33.82M | shares 29.29M | Unavailable | shares 14.15M | shares 12.27M | shares 12.03M | Unavailable | shares 11.81M | shares 11.72M | shares 11.63M |
| Pretax income | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Income tax expense | $0 | $0 | $0 | $0 | $0 | $0 | Unavailable | $0 | $0 | $0 |
| Diluted EPS | $-0.46 | $-0.54 | Unavailable | $-0.73 | $-0.90 | $-1.50 | Unavailable | $-1.90 | $-1.87 | $-1.57 |
| Selling, general & administrative | $5.51M | $4.12M | $4.83M | $4.06M | $5.03M | $7.52M | $7.60M | $8.62M | $8.89M | $7.56M |
| General & administrative | $4.95M | $3.86M | $4.61M | $3.70M | $3.73M | $5.57M | $5.72M | $6.09M | $6.18M | $5.53M |
| Selling & marketing | $562.00K | $254.00K | $220.00K | $360.00K | $1.30M | $1.95M | $1.89M | $2.53M | $2.71M | $2.03M |
Balance
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Cash & equivalents | $10.85M | $15.49M | $14.48M | $3.54M | $797.00K | $8.42M | $13.34M | $12.82M | $36.74M | $36.33M |
| Total assets | $32.48M | $48.57M | $51.17M | $36.14M | $39.62M | $53.58M | $71.81M | $96.70M | $111.13M | $123.63M |
| Current assets | $13.59M | $24.77M | $26.25M | $11.56M | $11.17M | $23.69M | $43.36M | $68.55M | $84.66M | $98.25M |
| Total liabilities | $35.16M | $39.13M | $42.55M | $37.91M | $36.31M | $41.50M | $42.93M | $47.50M | $42.09M | $35.81M |
| Current liabilities | $20.00M | $23.01M | $25.29M | $23.80M | $23.96M | $22.25M | $27.60M | $32.08M | $26.00M | $19.89M |
| Total equity incl. NCI | -$2.69M | $9.45M | $8.62M | -$1.77M | $3.30M | $12.08M | $28.88M | $49.20M | $69.04M | $87.82M |
| Temporary (mezzanine) equity | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Inventory | $112.00K | $123.00K | $140.00K | $4.65M | $4.67M | $6.88M | $5.64M | $7.04M | $4.42M | $3.16M |
| Accounts receivable | $10.00K | $37.00K | $13.00K | $108.00K | $148.00K | $253.00K | $215.00K | $413.00K | $981.00K | $1.04M |
| Goodwill | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Long-term debt | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Accounts payable | $1.23M | $1.33M | $3.02M | $9.47M | $10.63M | $10.22M | $8.07M | $10.94M | $5.83M | $2.91M |
Cash flow
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Operating cash flow | -$8.94M | -$13.46M | -$13.85M | -$5.83M | -$12.36M | -$18.24M | -$20.48M | -$17.61M | -$15.22M | -$18.91M |
| Capital expenditures | $502.00K | $930.00K | $2.31M | -$417.00K | $729.00K | $762.00K | $3.47M | $2.26M | $612.00K | $953.00K |
| Investing cash flow | $5.50M | $725.00K | -$9.81M | $417.00K | $3.67M | $13.25M | $20.87M | -$6.30M | $15.50M | $34.69M |
| Financing cash flow | -$1.20M | $14.05M | $34.60M | $8.06M | $816.00K | -$13.00K | $125.00K | -$8.00K | $138.00K | -$81.00K |
| Net change in cash | -$4.64M | $1.31M | $10.94M | $2.64M | -$7.88M | -$5.00M | $520.00K | -$23.92M | $412.00K | $15.70M |
| Stock-based compensation | $681.00K | $1.06M | $1.49M | $1.25M | $1.46M | $1.23M | $3.04M | $2.66M | $3.03M | $2.85M |
| Common dividends paid | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Common share repurchases | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Depreciation & amortization | $698.00K | $2.38M | $1.17M | $1.49M | $1.54M | $1.54M | $1.42M | $781.00K | $1.30M | $1.22M |
Derived
| Metric | 2026-06-30 | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 | 2025-03-31 | 2024-12-31 | 2024-09-30 | 2024-06-30 | 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Free cash flow | -$9.44M | -$14.39M | -$16.17M | Unavailable | -$13.09M | -$19.00M | -$23.95M | -$19.87M | -$15.83M | -$19.86M |
| Gross margin | -10165.8% | -5498.4% | Unavailable | -2207.9% | -216.3% | -1360.1% | -462.7% | -3449.0% | -3275.9% | -306.4% |
| Operating margin | -20731.5% | -10765.6% | Unavailable | -4584.6% | -490.1% | -3029.4% | -824.5% | -6596.7% | -6645.1% | -712.0% |
| FCF margin | -12938.4% | -11241.4% | Unavailable | Unavailable | -555.0% | -3172.0% | -840.2% | -5534.8% | -4549.7% | -725.5% |
| SBC / revenue | 932.9% | 831.2% | Unavailable | 582.2% | 62.1% | 206.0% | 106.6% | 740.4% | 869.5% | 104.2% |
| Current ratio | 0.68x | 1.08x | 1.04x | 0.49x | 0.47x | 1.07x | 1.57x | 2.14x | 3.26x | 4.94x |
| Revenue YoY growth | -96.9% | -78.6% | -155.7% | -40.4% | 577.6% | -78.1% | 1.9% | -76.8% | -87.7% | 636.0% |
| Net margin | -21305.5% | Unavailable | Unavailable | -4848.1% | -468.9% | Unavailable | -823.8% | -6265.5% | Unavailable | Unavailable |
| R&D / revenue | 3015.1% | 2050.8% | Unavailable | 479.9% | 60.4% | 413.7% | 94.9% | 747.6% | 814.9% | 129.5% |
| CapEx / revenue | 687.7% | 726.6% | Unavailable | -194.9% | 30.9% | 127.2% | 121.8% | 629.0% | 175.9% | 34.8% |
| Long-term debt / equity | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
| Effective tax rate | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable | Unavailable |
Amounts are abbreviated; the exact reported value is carried in each cell. — means unavailable, not zero. Open GWH in the interactive workspace to inspect any figure back to its filing.
Source filings
10-Q · Filed 2026-08-11View SEC filing
10-Q · Filed 2026-05-07View SEC filing
10-K · Filed 2026-03-05View SEC filing
10-Q · Filed 2025-11-13View SEC filing
10-Q · Filed 2025-08-14View SEC filing
10-Q · Filed 2025-05-15View SEC filing
Every accounting identity this site checks — the balance sheet, the gross profit bridge and the cash flow statement — reconciles in every period shown.