Diligence memo · auto-generated · as of July 2, 2026
Tecogen Inc.
Tecogen Inc. looks under-valued against its niche peers and is dormant on financing cadence.
Businessfiled
Tecogen Inc. operates in Manufacturing, based in WALTHAM.
No verified homepage on file yet — operating evidence is limited to the public record.
Capital & rounds (filed)filed
Tecogen Inc. has raised $9.3M in disclosed capital across 4 recorded rounds, aggregated from public filings. Its latest round is modeled as Series A (a $4.0M–$15M round).
Largest single filing: $5.0M on 2015-08-03.
Most recent recorded round closed around 2015-12-28.
Valuation (modeled)modeled
Provath models Tecogen Inc. at approximately $30M (range $4.2M–$163M). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.
Read: Under-valued. Modeled value is 0.59× the median modeled value of Series A Manufacturing companies in 2013–2015 (70 peers) — value vs value, same stage and era.
Financing rhythm & timingmixed
Historic cadence: a new round about every 9 months.
Last raise 10.5 yr ago; this sector typically re-raises about every 12 months.
Silent for over 3× the sector's normal cadence.
The last round was 1.7× smaller than the prior — a bridge or down round.
Comparablesmixed
Capital scale ranks ahead of 77% of Manufacturing peers (3257 compared).
Modeled value ranks above 71% of those peers.
Closest niche peers: OYO Sportstoys, Inc., Green Bay Packaging Inc, H-Food Holdings, LLC, Tommie Copper Inc., Cyclonaire Holding Corp..
Peoplefiled
12 named people on file across officers, directors and signatories.
Risks & flagsmixed
Financing has been silent well beyond sector cadence — possibly defunct, acquired, or paused.
No clearly named CEO/founder/principal in the surfaced records — key-person evidence is thin.