Tecogen INC.
Doing business as Tecogen
At a glance
Employees20-99
In business sinceNot reported
HeadquartersNorth Billerica, MA
US patents25
SAM.gov UEIUTBLSW77C286
CAGE code9LQC4
Incorporated inDE
LEI549300GD898YRLK9SS61
Brands
How Cogeneration Works
CogenerationThis company sells these brands.
- cogeneration
- healthcare
- recreation facilities
- data centers
- indoor growing
- breweries
- 200 units
- nationwide factory service
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
25 US patents granted 1988–2024, 1 of them in the five years to SEP 2025.
Chemical engineering 7Environmental technology 6Engines, pumps, turbines 5Electrical machinery, apparatus, energy 4Thermal processes and apparatus 2
- Hybrid power system with electric generator and auxiliary power sourceUS 11,936,327 · granted MAR 19, 2024
- Dual stage internal combustion engine aftertreatment system using exhaust gas intercooling and charger driven air ejectorUS 10,774,724 · granted SEP 15, 2020
- NOx reduction without urea using a dual stage catalyst system with intercooling in vehicle gasoline enginesUS 10,774,720 · granted SEP 15, 2020
- Emissions control systems and methods for vehiclesUS 9,995,195 · granted JUN 12, 2018
- Poison-resistant catalyst and systems containing sameUS 9,956,526 · granted MAY 1, 2018
Newest 5 shown · Granted to Tecogen Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Tecogen INC. | North Billerica | MA | 20–99 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.