| Balance Sheets | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 |
|---|---|---|---|---|
| Cash and cash equivalents | 410,660 | 567,992 | 58,733 | 120,225 |
| Restricted cash | 39,770 | 34,636 | 36,946 | 31,830 |
| Loan commitment assets - related party | NaN | 0 | 0 | 0 |
| Accounts receivable, net | 3,832 | 6,779 | 4,817 | 3,250 |
| Inventory | 58,745 | 59,026 | 47,554 | 41,128 |
| Vendor deposits | 12,061 | 11,756 | 12,541 | 11,197 |
| Contract assets, current | 39,438 | 13,972 | 11,982 | 14,601 |
| Prepaid expenses | 3,389 | 2,701 | 2,378 | 2,005 |
| Grant receivable, net | 21,369 | 11,028 | 12,248 | 6,589 |
| Other current assets | 701 | 590 | 1,536 | 1,452 |
| Total current assets | 589,965 | 708,480 | 188,735 | 232,277 |
| Property, plant and equipment, net | 145,774 | 114,415 | 86,025 | 75,533 |
| Gross carrying amount | 1,884 | 1,485 | NaN | NaN |
| Accumulated amortization | 597 | 506 | NaN | NaN |
| Intangible assets, net | 1,287 | 979 | 1,079 | 192 |
| Goodwill | 4,331 | 4,331 | 4,331 | 4,331 |
| Operating lease right-of-use asset, net | 21,469 | 20,420 | 2,311 | 2,624 |
| Long-term restricted cash | 21,938 | 21,938 | 31,120 | 31,120 |
| Other assets, net | 14,560 | 14,634 | 14,609 | 14,918 |
| Total assets | 799,324 | 885,197 | 328,210 | 360,995 |
| Accounts payable | 77,079 | 99,915 | 51,643 | 39,728 |
| Accrued expenses | 39,196 | 25,794 | 31,391 | 23,647 |
| Operating lease liability, current | 1,996 | 1,960 | 2,203 | 2,195 |
| Long-term debt, current | 0 | 372 | 730 | 1,073 |
| Contract liabilities, current | 6,718 | 14,975 | 16,703 | 37,438 |
| Other current liabilities | 326 | 524 | 683 | 171 |
| Total current liabilities | 125,315 | 143,540 | 103,353 | 104,252 |
| Operating lease liability | 21,374 | 19,182 | 389 | 871 |
| Long-term debt | 506,399 | 662,467 | 330,407 | 307,274 |
| Notes payable - related party | 113,120 | 150,427 | 117,317 | 136,930 |
| Interest payable - related party | NaN | NaN | 247 | NaN |
| Contract liabilities, long-term | 2,234 | 2,506 | 2,480 | 2,099 |
| Warrants liability-Nonrelated Party | 112,777 | 313,253 | 402,799 | 181,093 |
| Warrants liability-Related Party | 203,485 | 470,715 | 467,837 | 198,984 |
| Other liabilities | 394 | 427 | 382 | 190 |
| Total long-term liabilities | 959,783 | 1,618,977 | 1,321,858 | 827,441 |
| Total liabilities | 1,085,098 | 1,762,517 | 1,425,211 | 931,693 |
| Series b preferred stock (note 3) - related party | NaN | NaN | 1,223,364 | NaN |
| Series b preferred stock - related party | 582,664 | 1,361,542 | NaN | 532,269 |
| Common stock, 0.0001 par value, 600,000,000 shares authorized, 339,459,021 and 337,132,374 shares outstanding on march31, 2026 and december31, 2025, respectively | 32 | 32 | 27 | 25 |
| Additional paid in capital | 1,247,734 | 427,722 | 162,460 | 720,680 |
| Accumulated deficit | -2,026,936 | -2,535,819 | -2,415,366 | -1,773,973 |
| Accumulated other comprehensive income-Related Party | -89,268 | -130,807 | -67,498 | -49,714 |
| Accumulated other comprehensive income-Nonrelated Party | 0 | 10 | 12 | 15 |
| Total shareholders' deficit | -868,438 | -2,238,862 | -2,320,365 | -1,102,967 |
| Total liabilities, preferred stock and shareholders' deficit | 799,324 | 885,197 | 328,210 | 360,995 |
Eos Energy Enterprises, Inc. (EOSE)
Eos Energy Enterprises, Inc. (EOSE)