TECOGEN INC.
Business
Tecogen Inc. designs, manufactures, and sells natural-gas-fueled combined heat and power (CHP) systems, chillers, and refrigeration compressors for commercial and industrial customers. The company operates three business segments: Products (designs and manufactures cogeneration and chiller systems), Services (provides operations and maintenance under long-term contracts), and Energy Production (owns and operates distributed generation systems, selling electricity and thermal energy to customers). The company serves hospitals, schools, data centers, and industrial facilities primarily in high-utility-rate regions including California, the Midwest, and the Northeast.
Summary from 10-K filed 2026-03-19
Financials
Consolidated Statement of Income
| Concept | Trend | FY 2025 2025-12-31 | FY 2024 2024-12-31 | FY 2023 2023-12-31 | FY 2022 2022-12-31 | FY 2021 2021-12-31 |
|---|---|---|---|---|---|---|
| Total revenues | 27 | 23 | 25 | 25 | 24 | |
| Total cost of sales | 17 | 13 | 15 | 14 | 13 | |
| Gross profit | 10 | 10 | 10 | 11 | 12 | |
| General and administrative | 14 | 11 | 12 | 11 | 10 | |
| Selling | 2 | 2 | 2 | 2 | 2 | |
| Research and development | 1 | 961,837 | 840,011 | 732,873 | 542,079 | |
| Loss (gain) on sale of assets | 183 | −12,181 | −36,207 | −41,931 | −10,486 | |
| Long-lived asset impairment | 15,005 | 0 | 0 | 4,674 | 7,400 | |
| Goodwill impairment | 1 | 217,295 | 0 | 0 | 0 | |
| Operating Expenses | 18 | 14 | 15 | 13 | 13 | |
| Loss from operations | −8 | −5 | −4 | −2 | −1 | |
| Interest and other income (expense) | 151,711 | −26,814 | −61,003 | −34,713 | −23,746 | |
| Interest expense | −150,289 | −90,304 | −16,050 | — | — | |
| Gain on the sale of marketable securities | 3,687 | 0 | — | 0 | 6,046 | |
| Unrealized gain on marketable securities | 10,993 | 0 | 0 | 18,749 | −37,497 | |
| Total other expense, net | 16,102 | −117,118 | −77,053 | −32,219 | 5 | |
| Loss before income taxes | −8 | −5 | −4 | −2 | 4 | |
| State income tax provision | 20,615 | 22,565 | 32,491 | 16,352 | — | |
| Consolidated net loss | −8 | −5 | −5 | −2 | 4 | |
| Loss (income) attributable to the noncontrolling interest | 588 | −86,468 | −74,952 | −50,215 | −45,017 | |
| Net loss attributable to Tecogen Inc. | −8 | −5 | −5 | −2 | 4 | |
| Net income (loss) per share - basic (in USD per share) | −0.3 | −0.19 | −0.19 | −0.1 | 0.15 | |
| Weighted average shares outstanding - basic (in shares) | 27 | 25 | 25 | 25 | 25 | |
| Net income (loss) per share - diluted (in USD per share) | −0.3 | −0.19 | −0.19 | −0.1 | 0.15 | |
| Weighted average shares outstanding - diluted (in shares) | 27 | 25 | 25 | 25 | 25 |
Consolidated Balance Sheet
| Concept | Trend | FY 2025 2025-12-31 | FY 2024 2024-12-31 | FY 2023 2023-12-31 | FY 2022 2022-12-31 | FY 2021 2021-12-31 |
|---|---|---|---|---|---|---|
| Cash and cash equivalents | 12 | 5 | 1 | 2 | 4 | |
| Accounts receivable, net | 4 | 6 | 7 | 7 | 8 | |
| Unbilled revenue | 138,020 | 398,898 | 1 | 2 | 3 | |
| Inventory, net | 11 | 10 | 11 | 10 | 8 | |
| Prepaid and other current assets | 1 | 680,565 | 360,639 | 401,189 | 578,801 | |
| Total current assets | 29 | 22 | 20 | 22 | 25 | |
| Property, plant and equipment, net | 2 | 2 | 1 | 1 | 2 | |
| Right of use assets - operating leases | 1 | 2 | 743,096 | 1 | 2 | |
| Right of use assets - finance leases | 1 | 452,390 | 200,187 | — | — | |
| Intangible assets, net | 2 | 3 | 2 | 997,594 | 1 | |
| Goodwill | 1 | 2 | 3 | 2 | 2 | |
| Other assets | 176,358 | 166,474 | 201,771 | 165,230 | 148,140 | |
| TOTAL ASSETS | 37 | 31 | 28 | 28 | 32 | |
| Related party notes payable | 0 | 2 | 505,505 | 0 | — | |
| Accounts payable | 3 | 4 | 5 | 3 | 4 | |
| Accrued expenses | 3 | 3 | 3 | 2 | 2 | |
| Deferred revenue | 2 | 7 | 2 | 1 | 2 | |
| Operating lease liability, current | 538,641 | 430,382 | 248,933 | — | — | |
| Finance lease obligations, current | 280,265 | 85,646 | 40,540 | — | — | |
| Acquisition liabilities, current | 677,162 | 902,552 | 845,363 | 0 | — | |
| Unfavorable contract liabilities, current | 44,433 | 113,449 | 176,207 | 236,705 | 330,032 | |
| Total current liabilities | 9 | 17 | 10 | 8 | 9 | |
| Deferred revenue, net of current portion | 3 | 1 | 369,611 | 371,823 | 208,456 | |
| Operating lease liability, long-term | 1 | 1 | 523,660 | — | — | |
| Finance lease obligations, net of current portion | 992,285 | 325,235 | 159,647 | — | — | |
| Acquisition liabilities, net of current portion | 826,757 | 1 | 1 | 0 | — | |
| Unfavorable contract liability, net of current portion | 160,902 | 309,390 | 422,839 | 583,512 | 929,474 | |
| Total liabilities | 16 | 21 | 13 | 9 | 11 | |
| Commitments and contingencies | — | — | — | — | — | |
| Stockholders equity: | 29,847 | 24,950 | 24,850 | 24,850 | 24,850 | |
| Additional paid-in capital | 78 | 58 | 58 | 57 | 57 | |
| Unearned compensation | −712,019 | 0 | — | — | — | |
| Accumulated deficit | −56 | −48 | −43 | −38 | −36 | |
| Equity, Attributable to Parent, Total | 22 | 10 | 15 | 19 | 21 | |
| Noncontrolling interest | −173,034 | −104,807 | −94,301 | −106,560 | −79,939 | |
| Equity, Including Portion Attributable to Noncontrolling Interest, Total | 21 | 10 | 15 | 19 | 21 | |
| TOTAL LIABILITIES AND STOCKHOLDERS EQUITY | 37 | 31 | 28 | 28 | 32 |
Consolidated Statement of Cash Flows
| Concept | Trend | FY 2025 2025-12-31 | FY 2024 2024-12-31 | FY 2023 2023-12-31 | FY 2022 2022-12-31 | FY 2021 2021-12-31 |
|---|---|---|---|---|---|---|
| Depreciation, accretion and amortization, net | 877,675 | 553,783 | 567,712 | 428,348 | 469,854 | |
| Provision for credit losses | 62,958 | 146,010 | 902,432 | −70,987 | 131,206 | |
| Provision for inventory reserve | 110,488 | 70,530 | 402,883 | 107,000 | 0 | |
| Unrealized gain on marketable securities | −10,993 | 0 | 0 | −18,749 | 37,497 | |
| Stock-based compensation | 348,029 | 172,987 | 250,394 | 334,149 | 202,431 | |
| Goodwill and long-lived asset impairment | 1 | 217,295 | — | — | — | |
| Non-cash interest expense | 43,476 | 45,025 | 5,505 | — | — | |
| Accounts receivable | 2 | 608,929 | −81,195 | 2 | 57,618 | |
| Inventory, net | −1 | 848,884 | −82,525 | −3 | −596,393 | |
| Unbilled revenue | 260,879 | 859,634 | 56,994 | 1 | 1 | |
| Prepaid assets and other current assets | −405,745 | −319,926 | 40,550 | 177,612 | 18,343 | |
| Other non-current assets | 464,576 | 510,723 | 265,725 | 625,320 | −231,478 | |
| Accounts payable | −761,131 | −371,736 | 1 | −246,401 | −674,750 | |
| Accrued expenses | −76,736 | 386,257 | 128,869 | −109,282 | 374,802 | |
| Deferred revenue | −3 | 6 | 543,842 | −678,758 | 756,722 | |
| Other current liabilities | −871,627 | −832,162 | −421,049 | −645,236 | 227,271 | |
| Net cash provided by (used in) operating activities | −10 | 4 | −817,810 | −1 | 465,033 | |
| Purchases of property and equipment | −400,781 | −969,163 | −46,851 | −314,879 | −91,451 | |
| Proceeds on sale of property and equipment | 4,290 | 51,400 | 34,655 | 72,655 | 10,486 | |
| Distributions to noncontrolling interest | −67,639 | −96,974 | −62,693 | −76,836 | −82,633 | |
| Net used in investing activities | −464,130 | −1 | −244,889 | −348,565 | −215,058 | |
| Proceeds from follow-on offering, net of transaction costs | 18 | 0 | — | — | — | |
| (Repayment of) proceeds from related party note | −1 | 1 | — | — | — | |
| Finance lease principal payments | −324,065 | −62,847 | 0 | — | — | |
| Proceeds from exercise of stock options | 696,779 | 71,000 | 0 | — | 0 | |
| Net cash provided by financing activities | 17 | 1 | 500,000 | 0 | 2 | |
| Change in cash and cash equivalents | 7 | 4 | −562,699 | −2 | 2 | |
| Cash paid for interest | 183,354 | 45,278 | 10,926 | 14,597 | 241 | |
| Cash paid for taxes | 20,615 | 22,565 | 32,491 | 16,352 | 19,491 | |
| Right-of-use assets obtained in exchange for operating lease liabilities | 193,480 | 2 | 148,093 | — | — | |
| Right-of-use assets acquired under finance leases | 1 | 295,085 | 200,187 | 0 | — | |
| Contingent consideration | 0 | 272,901 | 1 | 0 | — | |
| Related party note conversion to common stock | 514,148 | 0 | — | — | — |
Filings
Material Events
Insiders
Institutional Holders
Frequently asked questions
What is TECOGEN INC.'s CIK number?
TECOGEN INC.'s SEC CIK number is 0001537435 (1537435). The CIK (Central Index Key) is the permanent identifier the SEC assigns to every EDGAR filer — unlike a ticker symbol, it never changes.
Where can I find TECOGEN INC.'s SEC filings?
All of TECOGEN INC.'s EDGAR filings — 10-K annual reports, 10-Q quarterly reports, 8-K material events, and insider transactions — are listed on this page, sourced live from SEC EDGAR.
When did TECOGEN INC. last report earnings?
TECOGEN INC. (TGEN) most recently filed an earnings 8-K with the SEC on May 12, 2026, furnishing its results under Item 2.02 (Results of Operations and Financial Condition). The earnings press release is attached to that filing (accession 0001537435-26-000036). This is TECOGEN INC.'s most recent earnings filing of record — not a forecast of its next earnings date.
What is TECOGEN INC.'s most recent earnings 8-K?
TECOGEN INC.'s latest earnings 8-K (Item 2.02) was filed May 12, 2026 under accession 0001537435-26-000036. It carries the quarterly or annual earnings press release — the earliest official, SEC-filed version of the results.
View TECOGEN INC.'s latest earnings 8-K →
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