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TECOGEN INC. (TGEN)

Tecogen Inc. specializes in the design, manufacturing, sales, and ongoing support of industrial and commercial combined heat and power (CHP) systems. These energy solutions cater to a wide range of applications—residential, commercial, recreational, and industrial—both within the United States and internationally. The company's operations are segmented into three main areas: Products, Services, and Energy Production. Its product offerings include: Cogeneration units, such as the InVerde e+ and TecoPower models, which efficiently produce both electricity and hot water. TECOCHILL branded chillers for air conditioning and refrigeration purposes. Tecofrost gas engine-driven compressors used in refrigeration systems. Ilios brand water heaters. Ultera emissions control technology. Beyond equipment sales, Tecogen provides extensive support services, including long-term maintenance contracts, spare parts sales, and comprehensive turnkey installation. These services are delivered through a network of eleven field service centers located strategically across California, the Midwest, the Northeast, the Southeast, and Ontario, Canada. Additionally, the company undertakes the installation, ownership, operation, and maintenance of distributed generation systems for electricity and other energy solutions, along with complementary technologies. Tecogen serves a diverse clientele spanning numerous sectors, such as healthcare (hospitals, nursing homes), education (colleges, universities), hospitality (hotels, motels, health clubs, spas), commercial real estate (office, retail buildings), manufacturing (food and beverage processors, factories), multi-unit residential properties, and specialized facilities like laundries, ice rinks, swimming pools, municipal buildings, military installations, and indoor growing operations. Established in 2000, Tecogen Inc. is headquartered in Waltham, Massachusetts.

Sector: Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip

Industry: Electrical Equipment & Parts

Tecogen Inc. logo

Tecogen Inc.

NYSE:TGENIndustrials
+9.38%$2.10
AH$2.10+0.00%vs close
Mkt Cap$63.39M
Float18.6M
O/S30.19M
Inst Own30.1%
SI6.2%
Dilution
Historical Data
DateOpenHighLowCloseVolume
Key Metrics
Market Cap$63.39M
Enterprise Value--
P/E Ratio-16.23
Est. Net Cash/Share--
Institutional Ownership30.09%

based on 30.19M shares outstanding

SectorIndustrials
IndustryElectrical Equipment & Parts
ExchangeNYSE American
CountryUSUS
IPO DateMay 6, 2025
Shares Outstanding30.19M
Float18.60M
Company Overview

Tecogen 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.

Leadership

Abinand Rangesh

Chief Executive Officer & Director

Ahmed F. Ghoniem

Director

Earl L. Lewis, III

Director

John N. Hatsopoulos

Lead Director

Employees

91

Country

US

Sector

Industrials

Website

tecogen.com

Analyst Coverage
Analyst Coverage
ConsensusBuy
Price Target
No price targets available
Ratings Distribution
BUY
4
HOLD
0
SELL
0
TOTAL4
Insider Trades
InsiderTypeShares
Whiting John Kimball IV profile photoWhiting John Kimball IVGrant/Award19.3K
Galiteva Angelina profile photoGaliteva AngelinaGrant/Award25.0K
Lafaille Stephen profile photoLafaille StephenGrant/Award29.0K
Panora Robert profile photoPanora RobertGrant/Award9.7K
Rangesh Abinand profile photoRangesh AbinandGrant/Award174.1K
Deschenes Roger P. profile photoDeschenes Roger P.Grant/Award29.0K
Shareholders
30.1%
Institutional
(68)
9.3%
Insiderⓘ
(9)
1.5%
5%+ Owners
(1)
59.1%
Unattributed (incl. retail)ⓘ
Institutional30.1%
Insider9.3%
5%+ Beneficial1.5%
Unattributed (incl. retail)59.1%
Top Shareholders
NameShares%
Portolan Capital Management, LLC logo
Portolan Capital Management, LLC
1.6M5.1%
Hatsopoulos John profile photo
Hatsopoulos John
Director
1.0M3.4%
Lewis Earl profile photo
Lewis Earl
Director
1.0M3.3%
VANGUARD CAPITAL MANAGEMENT LLC logo
VANGUARD CAPITAL MANAGEMENT LLC
788.7K2.6%
BARD ASSOCIATES INC logo
BARD ASSOCIATES INC
682.2K2.3%
Clear Harbor Asset Management, LLC logo
Clear Harbor Asset Management, LLC
650.0K2.2%
Tryfon Natsis and Depoina Pantopoulou, as Joint Tenants with the Right of Survivorship logo
Tryfon Natsis and Depoina Pantopoulou, as Joint Tenants with the Right of Survivorship
· may incl. warrants· filed Aug 2025
460.3K1.5%
GRATIA CAPITAL, LLC logo
GRATIA CAPITAL, LLC
388.7K1.3%
UBS Group AG logo
UBS Group AG
363.0K1.2%
Meros Investment Management, LP logo
Meros Investment Management, LP
353.5K1.2%
Sources: 13F, Form 4, 13D/13GO/S: 30.2M · as of 28 Aug 2026 · SEC filings
Insiders & Institutional Holders
52-Week Range
$1.87$11.07
$2.10(2nd percentile)
Volume
Average Daily Volume218.59K
391.83K today vs 218.59K avg(+79%)

30d Avg

218.59K

60d Avg

179.67K

90d Avg

181.94K

Earnings
Dividend History
No dividend history available
Compliance Status
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