Filing Flows › Tecogen (TGEN) › Q4 2025
Tecogen (TGEN) Q4 2025 earnings results (fourth quarter 2025)
10-K filed Mar 19, 2026
Tecogen (TGEN) reported revenue of $5.3M for the fourth quarter 2025 (Q4 2025), -12% from a year earlier and -26% from the quarter before. Operating margin was -77.8%, net loss $4.0M (75.2% of revenue).
Tecogen, Q4 2025: revenue $5.3M (-12% year over year), operating margin -77.8%, net loss $4.0M, operating cash flow −$2.6M. The chart follows the revenue to costs, profit and cash.
| Q4 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $5.3M | -26% | -12% |
| Operating profit | −$4.1M | — | — |
| Net earnings | −$4.0M | — | — |
| Operating cash flow | −$2.6M | — | -162% |
What changed
Revenue was $5.3M in Q4 2025, down 12% year over year and down 26% from the previous quarter. Services was the largest line at 84% of revenue.
Gross margin was 36.8%, down 8.2 points from Q4 2024. Operating costs exceeded revenue by $4.1M, an operating margin of -77.8%. Operating expenses grew 57% against a revenue fall of 12%. The fastest-growing cost line was Other operating costs (+422%). The quarter ended with a net loss of $4.0M, wider than the previous quarter's $2.1M loss.
Operating cash flow was −$2.6M. Non-cash charges added back $256K of depreciation and amortization and $138K of share-based compensation. Working capital and other items added $1.0M. Capital expenditures of $47K exceeded it, leaving free cash flow of −$2.6M.
Questions
What was Tecogen's revenue in the fourth quarter 2025?
Tecogen (TGEN) reported revenue of $5.3M for the fourth quarter 2025 (Q4 2025), -12% from a year earlier and -26% from the quarter before.
Was Tecogen profitable in the fourth quarter 2025?
Operating loss was $4.1M (-77.8% of revenue) and net loss $4.0M.
Source: Tecogen 10-K on SEC EDGAR.