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TGEN logoTecogen Inc.(TGEN)Earnings, Financials & Key Ratios

TGEN•AMEX
$5.35
$133M mkt cap·Price updated May 6, 2026
SectorIndustrialsIndustryElectrical EquipmentSub-IndustryGrid-Scale Storage and Microgrids
AboutTecogen Inc. designs, manufactures, markets, and maintains industrial and commercial cogeneration systems for residential, commercial, recreational, and industrial use in the United States and internationally. It operates through three segments: Products, Services, and Energy Production. The company offers InVerde e+ and TecoPower, a cogeneration product that supplies electricity and hot water; TECOCHILL air-conditioning and refrigeration chillers; Tecofrost gas engine-driven refrigeration compressors; and water heaters under the Ilios brand name, as well as emissions control technology under the Ultera brand name. It also provides long-term maintenance contracts, parts sales, and turnkey installation services through a network of eleven field service centers in California, the Midwest, the Northeast, and the Southeast, as well as in Ontario, Canada. In addition, the company installs, owns, operates, and maintains distributed generation of electricity, energy, and other complementary systems. It serves hospitals and nursing homes, colleges, universities, health clubs, spas, hotels, motels, office and retail buildings, food and beverage processors, multi-unit residential buildings, laundries, ice rinks, swimming pools, factories, municipal buildings, military installations, and indoor growing facilities. The company was incorporated in 2000 and is headquartered in Waltham, Massachusetts.Show more
  • Revenue$27M+19.7%
  • EBITDA-$6M-57.1%
  • Net Income-$8M-73.3%
  • EPS (Diluted)-0.30-57.9%
  • Gross Margin36.29%-16.8%
  • EBITDA Margin-23.1%-31.3%
  • Operating Margin-26.34%-31.4%
  • Net Margin-30.47%-44.8%
  • ROE-52.21%-35.9%
  • ROIC-52.67%-79.9%
  • Debt/Equity0.13-64.4%
  • Interest Coverage-47.45-22.6%
Technical→

TGEN Key Insights

Tecogen Inc. (TGEN) fundamental analysis — strengths, weaknesses & financial health based on data analysis

✓Strengths

  • ✓High quality earnings: Operating CF exceeds net income

✗Weaknesses

  • ✗Weak Piotroski F-Score: 3/9
  • ✗Negative free cash flow
  • ✗Trading more than 30% below 52-week high

* These insights are generated automatically based on available financial data. Please conduct your own research before making investment decisions.

TGEN Price & Volume

Tecogen Inc. (TGEN) stock price & volume — 10-year historical chart

Loading chart...

TGEN Growth Metrics

Tecogen Inc. (TGEN) revenue, earnings & EPS growth — 3, 5 & 10-year CAGR

Revenue CAGR

10 Years2.36%
5 Years-0.85%
3 Years2.69%
TTM19.69%

Profit CAGR

10 Years-
5 Years-
3 Years-
TTM-73.34%

EPS CAGR

10 Years-
5 Years-
3 Years-
TTM-50.68%

Return on Capital

10 Years-16.01%
5 Years-20.41%
3 Years-28.66%
Last Year-33.96%

TGEN Recent Earnings

Tecogen Inc. (TGEN) EPS & revenue vs analyst estimates — last 4 quarters

Full history →
●Beat EPS 2/12 qtrs (20%)●Beat Revenue 5/12 qtrs (50%)
Q2 2026Latest
Mar 18, 2026
EPS
$0.09
Est $0.10
+10.0%
Revenue
$5M
Est $5M
+12.4%
Q2 2026
Mar 17, 2026
EPS
$0.09
Est $0.10
+10.0%
Revenue
$5M
Est $5M
+12.4%
Q4 2025
Nov 12, 2025
EPS
$0.07
Est $0.05
-40.0%
Revenue
$7M
Est $5M
+51.9%
Q3 2025
Aug 12, 2025
EPS
$0.06
Revenue
$7M
QuarterDateEPS (Act vs Est)Revenue (Act vs Est)
Q2 2026LatestMar 18, 2026
$0.09vs $0.10+10.0%
$5Mvs $5M+12.4%
Q2 2026Mar 17, 2026
$0.09vs $0.10+10.0%
$5Mvs $5M+12.4%
Q4 2025Nov 12, 2025
$0.07vs $0.05-40.0%
$7Mvs $5M+51.9%
Q3 2025Aug 12, 2025
$0.06
$7M
Based on last 12 quarters of dataView full earnings history →

TGEN Peer Comparison

Tecogen Inc. (TGEN) competitors in Grid-Scale Storage and Microgrids — business model, growth, and fundamentals comparison

Select Columns
Stock Universe
Valuation
Growth
Profitability
Financial Health
Dividends & Buybacks
Price Performance
Technical
Fundamentals ($)
Sector-Specific
CompanyMarket CapStock PriceP/E Ratio (TTM)Revenue Growth 1YNet MarginReturn on Equity (ROE)FCF YieldDebt / Equity
CDTX logoCDTXCidara Therapeutics, Inc.Direct Competitor6.96B221.38-8.28-94.52%-43.74%0.02
PESI logoPESIPerma-Fix Environmental Services, Inc.Direct Competitor218.49M11.78-15.714.33%-22.35%-24.89%0.09
AMTX logoAMTXAemetis, Inc.Direct Competitor220.79M3.24-2.53-22.29%-38.96%
CLNE logoCLNEClean Energy Fuels Corp.Direct Competitor491.3M2.24-2.222.16%-52.22%-39.29%0.18
GNRC logoGNRCGenerac Holdings Inc.Product Competitor15.69B267.4299.41-2.02%4.37%7.18%0.51
FCEL logoFCELFuelCell Energy, Inc.Product Competitor673.92M12.81-1.7341.05%-107.98%-26.76%0.20
BLDP logoBLDPBallard Power Systems Inc.Product Competitor1.44B4.78-15.9345.04%-91.49%-14.63%0.04
PLUG logoPLUGPlug Power Inc.Product Competitor4.61B3.3112.9%-229.83%-124.41%19.75

Compare TGEN vs Peers

Tecogen Inc. (TGEN) vs competitors — business, growth, and fundamentals comparison against the closest industry rivals.

Closest Rival

vs CDTX

Most directly comparable listed peer for TGEN.

Scale Benchmark

vs NI

Larger-name benchmark to compare TGEN against a more recognizable public peer.

Peer Set

Compare Top 5

vs CDTX, PESI, AMTX, CLNE

TGEN Income Statement

Tecogen Inc. (TGEN) annual income statement — 10-year revenue, gross profit & net income history

10Y historyFree accessUpdated daily
Line itemDec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24Dec'25
Sales/Revenue33.2M35.88M33.43M28.25M24.4M25M25.14M22.62M27.07M
Revenue Growth %35.57%8.07%-6.85%-15.47%-13.65%2.48%0.55%-10.02%19.69%
Cost of Goods Sold20.25M22.29M20.95M17.43M12.81M13.94M14.94M12.75M17.25M
COGS % of Revenue60.98%62.12%62.67%61.68%52.51%55.74%59.42%56.36%63.71%
Gross Profit
12.95M▲ 0%
13.59M▲ 4.9%
12.48M▼ 8.2%
10.83M▼ 13.2%
11.59M▲ 7.0%
11.07M▼ 4.5%
10.2M▼ 7.8%
9.87M▼ 3.2%
9.82M▼ 0.5%
Gross Margin %39.02%37.88%37.33%38.32%47.49%44.26%40.58%43.64%36.29%
Gross Profit Growth %39.28%4.92%-8.19%-13.23%7.02%-4.49%-7.82%-3.25%-0.46%
Operating Expenses12.73M19.13M17.14M16.79M12.81M13.42M14.62M14.4M16.96M
OpEx % of Revenue38.34%53.31%51.27%59.42%52.49%53.66%58.14%63.68%62.63%
Selling, General & Admin11.79M13.44M13.07M12.9M12.27M12.72M13.81M13.24M15.79M
SG&A % of Revenue35.52%37.46%39.09%45.67%50.28%50.88%54.94%58.52%58.32%
Research & Development936.93K1.3M1.46M767.32K542.08K732.87K840.01K961.84K1.17M
R&D % of Revenue2.82%3.62%4.37%2.72%2.22%2.93%3.34%4.25%4.31%
Other Operating Expenses04.39M2.61M3.12M-3.09K-37.26K-36.21K205.11K0
Operating Income
225.15K▲ 0%
-5.54M▼ 2559.8%
-4.66M▲ 15.9%
-5.96M▼ 27.9%
-1.22M▲ 79.5%
-2.35M▼ 92.7%
-4.41M▼ 87.9%
-4.53M▼ 2.7%
-7.13M▼ 57.3%
Operating Margin %0.68%-15.43%-13.94%-21.09%-5%-9.4%-17.56%-20.04%-26.34%
Operating Income Growth %122.57%-2559.81%15.88%-27.94%79.55%-92.7%-87.88%-2.73%-57.29%
EBITDA812.97K-4.75M-4.22M-5.55M-749.24K-1.92M-3.85M-3.98M-6.25M
EBITDA Margin %2.45%-13.23%-12.63%-19.63%-3.07%-7.68%-15.3%-17.6%-23.1%
EBITDA Growth %210.84%-684.17%11.11%-31.38%86.49%-156.37%-100.22%-3.49%-57.12%
D&A (Non-Cash Add-back)587.82K789.12K437.1K414.13K469.85K428.35K567.71K553.78K877.67K
EBIT252.78K-5.65M-4.68M-6.06M3.8M-2.33M-4.41M-4.53M-7.13M
Net Interest Income-127.46K-111.98K-100.92K-128.3K-37.98K-16.25K-77.05K-117.12K-150.29K
Interest Income27.63K8.03K933000000
Interest Expense155.08K120.02K101.85K128.3K37.98K16.25K77.05K117.12K150.29K
Other Income/Expense-127.46K-230.07K-120.6K-226.71K4.98M-32.22K-77.05K-117.12K-1.1M
Pretax Income
97.7K▲ 0%
-5.77M▼ 6004.4%
-4.78M▲ 17.1%
-6.19M▼ 29.5%
3.76M▲ 160.8%
-2.38M▼ 163.3%
-4.49M▼ 88.6%
-4.65M▼ 3.6%
-8.23M▼ 76.9%
Pretax Margin %0.29%-16.08%-14.3%-21.9%15.41%-9.52%-17.86%-20.56%-30.39%
Income Tax032.75K15.19K30.17K19.49K16.35K32.49K22.57K20.61K
Effective Tax Rate %0%-0.57%-0.32%-0.49%0.52%-0.69%-0.72%-0.49%-0.25%
Net Income
47.44K▲ 0%
-5.71M▼ 12134.2%
-4.71M▲ 17.5%
-6.15M▼ 30.6%
3.7M▲ 160.1%
-2.45M▼ 166.2%
-4.6M▼ 87.8%
-4.76M▼ 3.5%
-8.25M▼ 73.3%
Net Margin %0.14%-15.91%-14.09%-21.77%15.15%-9.79%-18.29%-21.04%-30.47%
Net Income Growth %104.33%-12134.18%17.51%-30.61%160.09%-166.23%-87.84%-3.53%-73.28%
Net Income (Continuing)97.7K-5.8M-4.79M-6.22M3.74M-2.4M-4.52M-4.67M-8.25M
Discontinued Operations000000000
Minority Interest455.61K255.12K85.26K-42.32K-79.94K-106.56K-94.3K-104.81K-173.03K
EPS (Diluted)
0.00▲ 0%
-0.23▼ 11600.0%
-0.19▲ 17.4%
-0.25▼ 31.6%
0.15▲ 160.0%
-0.10▼ 165.7%
-0.18▼ 82.7%
-0.19▼ 5.6%
-0.30▼ 57.9%
EPS Growth %103.52%-17.39%-31.58%160%-165.67%-82.74%-5.56%-57.89%
EPS (Basic)0.00-0.23-0.19-0.250.15-0.10-0.18-0.19-0.30
Diluted Shares Outstanding23.34M24.82M24.84M24.85M25.12M24.85M24.85M24.86M27.23M
Basic Shares Outstanding23.17M24.82M24.84M24.85M24.85M24.85M24.85M24.85M27.23M
Dividend Payout Ratio---------

TGEN Balance Sheet

Tecogen Inc. (TGEN) balance sheet — assets, liabilities & shareholders' equity

Line itemDec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24Dec'25
Total Current Assets21.66M26.37M27.91M22.19M24.97M22.03M20.31M22.15M28.89M
Cash & Short-Term Investments1.67M272.55K877.68K1.49M3.61M1.91M1.35M5.41M12.43M
Cash Only1.67M272.55K877.68K1.49M3.61M1.91M1.35M5.41M12.43M
Short-Term Investments000000000
Accounts Receivable14.09M19.08M19.99M12.94M11.74M8.52M7.99M6.43M4.42M
Days Sales Outstanding154.84194.07218.29167.14175.64124.37116.06103.6859.58
Inventory5.13M6.29M6.41M7.17M7.76M10.48M10.55M9.63M10.95M
Days Inventory Outstanding92.49103.07111.61150.14221.24274.56257.87275.81231.7
Other Current Assets00001.28M713.27K46.15K680.57K1.09M
Total Non-Current Assets29.01M23.54M13.21M7.88M7.39M6.22M7.49M8.95M8.1M
Property, Plant & Equipment12.27M11.27M5.64M3.92M3.65M2.65M2.11M3.47M4.53M
Fixed Asset Turnover2.71x3.18x5.93x7.21x6.68x9.42x11.94x6.52x5.97x
Goodwill13.37M8.98M5.28M2.41M2.41M2.41M2.74M2.35M1.25M
Intangible Assets2.9M2.89M1.59M1.36M1.18M997.59K2.44M2.51M2.15M
Long-Term Investments000000000
Other Non-Current Assets482.55K393.65K691.94K196.39K148.14K165.23K201.77K618.86K176.36K
Total Assets
50.67M▲ 0%
49.9M▼ 1.5%
41.12M▼ 17.6%
30.07M▼ 26.9%
32.36M▲ 7.6%
28.25M▼ 12.7%
27.79M▼ 1.6%
31.09M▲ 11.9%
36.99M▲ 19.0%
Asset Turnover0.66x0.72x0.81x0.94x0.75x0.88x0.90x0.73x0.73x
Asset Growth %113.43%-1.51%-17.61%-26.86%7.61%-12.7%-1.63%11.87%18.97%
Total Current Liabilities8.71M13.2M13.45M8.82M8.78M7.69M10.48M16.82M9.27M
Accounts Payable5.1M7.15M5.27M4.18M3.51M3.26M4.51M4.14M3.38M
Days Payables Outstanding91.85117.1391.8687.6199.9685.44110.31118.671.55
Short-Term Debt850K2.01M2.94M837.86K00505.5K1.55M818.91K
Deferred Revenue (Current)1.29M2.51M2.64M1.29M01.35M1.65M6.81M1.53M
Other Current Liabilities0140.6K-331.14K02.45M01.16M902.55K3.54M
Current Ratio2.49x2.00x2.08x2.52x2.84x2.87x1.94x1.32x3.12x
Quick Ratio1.90x1.52x1.60x1.70x1.96x1.50x0.93x0.74x1.94x
Cash Conversion Cycle155.48180.01238.04229.67296.92313.49263.62260.89219.72
Total Non-Current Liabilities8.27M8.67M4.32M3.99M2.45M1.58M2.66M4.15M6.25M
Long-Term Debt0001.04M00002M
Capital Lease Obligations001.64M1.22M1.32M623.45K683.31K1.67M2M
Deferred Tax Liabilities00-2.53M00-583.51K000
Other Non-Current Liabilities002.53M1.62M1.14M583.51K1.6M1.01M987.66K
Total Liabilities16.98M21.87M17.76M12.81M11.23M9.27M13.14M20.97M15.52M
Total Debt850K2.01M5.11M3.6M1.96M1.31M1.48M3.73M2.82M
Net Debt-823.07K1.74M4.24M2.11M-1.66M-602.93K127.02K-1.67M-9.61M
Debt / Equity0.03x0.07x0.22x0.21x0.09x0.07x0.10x0.37x0.13x
Debt / EBITDA1.05x--------
Net Debt / EBITDA-1.01x--------
Interest Coverage1.45x-46.15x-45.74x-46.45x-32.09x-144.53x-57.28x-38.71x-47.45x
Total Equity
33.7M▲ 0%
28.04M▼ 16.8%
23.35M▼ 16.7%
17.27M▼ 26.1%
21.13M▲ 22.4%
18.99M▼ 10.1%
14.65M▼ 22.8%
10.13M▼ 30.9%
21.47M▲ 112.1%
Equity Growth %132.2%-16.79%-16.71%-26.06%22.36%-10.13%-22.83%-30.89%112.06%
Book Value per Share1.441.130.940.690.840.760.590.410.79
Total Shareholders' Equity33.24M27.78M23.27M17.31M21.21M19.09M14.75M10.23M21.65M
Common Stock24.77K24.82K24.85K24.85K24.85K24.85K24.85K24.95K29.85K
Retained Earnings-22.8M-28.67M-33.38M-39.53M-35.83M-38.28M-42.88M-47.64M-55.89M
Treasury Stock000000000
Accumulated OCI-165.32K0000000-712.02K
Minority Interest455.61K255.12K85.26K-42.32K-79.94K-106.56K-94.3K-104.81K-173.03K

TGEN Cash Flow Statement

Tecogen Inc. (TGEN) cash flow — operating, investing & free cash flow history

Line itemDec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24Dec'25
Cash from Operations-591.26K-3.86M-4.48M1.41M465.03K-1.35M-817.81K4.06M-9.91M
Operating CF Margin %-1.78%-10.75%-13.42%4.98%1.91%-5.41%-3.25%17.95%-36.61%
Operating CF Growth %78.25%-552.4%-16.25%131.38%-66.95%-390.72%39.51%596.51%-344.1%
Net Income97.7K-5.8M-4.79M-6.22M3.74M-2.4M-4.52M-4.67M-8.25M
Depreciation & Amortization587.82K789.12K437.1K414.13K469.85K428.35K567.71K553.78K877.67K
Stock-Based Compensation183.77K181.19K163.46K190.94K202.43K334.15K250.39K172.99K348.03K
Deferred Taxes3.31K4.42M0000000
Other Non-Cash Items1.49K-92.51K2.72M4.01M-4.89M130.01K1.27M466.68K1.31M
Working Capital Changes-1.47M-3.35M-3.01M3.01M941.2K153.28K1.61M7.54M-4.2M
Change in Receivables-336.05K-4.47M-959.99K6.71M1.07M3.85M-24.2K1.47M1.94M
Change in Inventory-298.17K-1.17M-110.37K-849.37K-596.39K-2.82M-82.53K848.88K-1.43M
Change in Payables1.34M1.17M-1.88M-1.09M-674.75K-246.4K1.16M-371.74K-761.13K
Cash from Investing1.51M1.28M4.71M-217.76K-215.06K-348.56K-244.89K-1.01M-464.13K
Capital Expenditures-1.03M-1.05M-95.64K-59.95K-91.45K-314.88K-46.85K-969.16K-400.78K
CapEx % of Revenue3.11%2.94%0.29%0.21%0.37%1.26%0.19%4.28%1.48%
Acquisitions971.45K440.29K0000-170K00
Investments---------
Other Investing1.05M1.9M4.8M-157.81K-135.24K-33.69K-28.04K-45.57K-59.66K
Cash from Financing-2.97M1.18M382.9K-576.93K1.87M0500K1.01M17.4M
Debt Issued (Net)-3.15M1.25M349.28K-578.13K1.87M0500K937.15K-1.4M
Equity Issued (Net)0001.2K00001000K
Dividends Paid000000000
Share Repurchases000000000
Other Financing179.92K-72.09K33.62K1.2K00071K0
Net Change in Cash
-2.05M▲ 0%
-1.4M▲ 31.6%
605.12K▲ 143.2%
612.54K▲ 1.2%
2.12M▲ 246.8%
-1.7M▼ 180.1%
-562.7K▲ 66.9%
4.05M▲ 820.4%
7.03M▲ 73.3%
Free Cash Flow
-1.62M▲ 0%
-4.91M▼ 202.3%
-4.69M▲ 4.5%
1.22M▲ 126.1%
310.49K▼ 74.6%
-1.7M▼ 646.3%
-864.66K▲ 49.0%
3.09M▲ 457.5%
-10.31M▼ 433.6%
FCF Margin %-4.89%-13.69%-14.03%4.33%1.27%-6.78%-3.44%13.67%-38.09%
FCF Growth %45.42%-202.31%4.51%126.1%-74.63%-646.34%49.03%457.53%-433.59%
FCF per Share-0.07-0.20-0.190.050.01-0.07-0.030.12-0.38
FCF Conversion (FCF/Net Income)-12.46x0.68x0.95x-0.23x0.13x0.55x0.18x-0.85x1.20x
Interest Paid0140.06K51.89K62.01K24114.6K10.93K45.28K0
Taxes Paid032.75K35.4K30.18K19.49K16.35K32.49K22.57K0

TGEN Key Ratios

Tecogen Inc. (TGEN) financial ratios — P/E, ROE, debt and 30+ core market and balance-sheet ratios

Metric2016201720182019202020212022202320242025
Return on Equity (ROE)-8.13%0.2%-18.49%-18.33%-30.28%19.25%-12.2%-27.34%-38.42%-52.21%
Return on Invested Capital (ROIC)-6.26%0.72%-13.26%-12.18%-19.04%-4.71%-9.31%-19.96%-29.28%-52.67%
Gross Margin37.98%39.02%37.88%37.33%38.32%47.49%44.26%40.58%43.64%36.29%
Net Margin-4.48%0.14%-15.91%-14.09%-21.77%15.15%-9.79%-18.29%-21.04%-30.47%
Debt / Equity0.22x0.03x0.07x0.22x0.21x0.09x0.07x0.10x0.37x0.13x
Interest Coverage-5.67x1.45x-46.15x-45.74x-46.45x-32.09x-144.53x-57.28x-38.71x-47.45x
FCF Conversion2.48x-12.46x0.68x0.95x-0.23x0.13x0.55x0.18x-0.85x1.20x
Revenue Growth14.21%35.57%8.07%-6.85%-15.47%-13.65%2.48%0.55%-10.02%19.69%

TGEN Frequently Asked Questions

Tecogen Inc. (TGEN) stock FAQ — growth, dividends, profitability & financials explained

Growth & Financials

Tecogen Inc. (TGEN) reported $27.1M in revenue for fiscal year 2025. This represents a 145% increase from $11.1M in 2011.

Tecogen Inc. (TGEN) grew revenue by 19.7% over the past year. This is strong growth.

Tecogen Inc. (TGEN) reported a net loss of $8.3M for fiscal year 2025.

Dividend & Returns

Tecogen Inc. (TGEN) has a return on equity (ROE) of -52.2%. Negative ROE indicates the company is unprofitable.

Tecogen Inc. (TGEN) had negative free cash flow of $10.3M in fiscal year 2025, likely due to heavy capital investments.

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Tecogen Inc. (TGEN) financial analysis — history, returns, DCA and operating performance tools

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