Updated: Jun 15, 2026
Location
Address
45 1st Ave, Waltham, MA, 02451
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Tecogen Electrician
Tecogen Inc, 45 1st Ave, Waltham, MA (Employees: David Andrew Garrison, James Russell Harding, and Kelly Phillip Mack) holds a Refrigeration license and 1 other license according to the California license board.
Their BuildZoom score of 93 ranks in the top 27% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Tecogen Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Tecogen Inc Contact Information
Phone Number: (781) 522-6120
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Address: 45 1st Ave, Waltham, MA 02451
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Verified License
BuildZoom confirmed this contractor's license
Tecogen Inc License info
Verified License
| License # | 924500 |
| Status | Active |
| State | California |
| Type | Refrigeration |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tecogen Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 816385 |
| Status | Inactive |
| State | California |
| Type | Electrical, Refrigeration |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Tecogen Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Twin City Fire Insurance Company |
Tecogen Inc Employees
DG
David Andrew Garrison
Officer
JH
James Russell Harding
Officer
KM
Kelly Phillip Mack
Rme
RP
Robert Anthony Panora
Ceo / President
RB
Robert Edward Buday
Rme
WF
William O Flannery
Officer