Tecogen Inc. revenue by segment TGEN

Tecogen Inc. splits its revenue into 7 lines in its filings. The largest line in fiscal 2025, which ended Dec 31, 2025 was Services at $16.6 million, 61% of the total.

USD in millions. The percent under a figure is the change from the year before.

Line
FY 2026
Jun 30, 2026
FY 2025
Dec 31, 2025
FY 2024
Dec 31, 2024
FY 2023
Dec 31, 2023
FY 2022
Dec 31, 2022
FY 2021
Dec 31, 2021
FY 2020
Dec 31, 2020
FY 2019
Dec 31, 2019
FY 2018
Dec 31, 2018
FY 2017
Dec 31, 2017
FY 2016
Dec 31, 2016
Revenue
25
27
23
25
25
24
28
33
36
33
24
Services
17
+7.9%
share 70.9%
17
+3.4%
share 61.4%
16
+10.7%
share 71.1%
15
share 57.8%
—
13
-16.2%
share 51.3%
15
share 52.9%
—
—
—
—
Maintenance Service
—
—
—
—
—
12
+15.0%
share 47.5%
10
share 35.7%
—
—
—
—
Product
—
—
—
—
—
10
-11.6%
share 41.5%
11
share 40.6%
—
—
—
—
Chiller
4
-14.8%
share 15.2%
6
+243.5%
share 20.9%
2
share 7.3%
—
5
share 20.1%
—
—
—
—
—
—
Cogeneration
2
-61.0%
share 6.2%
3
+14.8%
share 11.4%
3
-3.0%
share 11.8%
3
-47.7%
share 11.0%
5
share 21.1%
—
—
—
—
—
—
Energy Service
1
-12.5%
share 5.7%
1
-37.0%
share 4.9%
2
+19.6%
share 9.3%
2
-1.6%
share 7.0%
2
+2.7%
share 7.1%
2
-5.3%
share 7.1%
2
share 6.5%
—
—
—
—
Engineered Accessories
0
+132.5%
share 2.0%
0
+238.4%
share 1.5%
0
-85.1%
share 0.5%
1
-5.7%
share 3.2%
1
share 3.4%
—
—
—
—
—
—
How these figures are calculated

Annual columns are full-year amounts from the annual report (Form 10-K, 20-F, or 40-F). If a company restates a year, the latest filed number is shown. USD in millions. Each group is a separate split of total revenue, so the groups are not added together. Share of revenue is that line divided by total revenue. The first column adds the latest year-to-date segment amount to the last fiscal year and subtracts the year-ago year-to-date amount. More on our methodology.

Company profile

Industry
Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (SIC 3585)
Listed as
TGEN (NYSE)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
North Billerica, MA
SEC filer status
Non-accelerated filer, Smaller reporting company
SEC CIK
1537435
Former names
TECOGEN INC (until Mar 27, 2013)

Other Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip companies

Source: SEC EDGAR filings. This is company-reported data, not investment advice.