Diligence memo · auto-generated · as of July 2, 2026
Summa Resource Holdings Llc
Summa Resource Holdings Llc looks fair against its niche peers and is dormant on financing cadence.
Businessfiled
Summa Resource Holdings Llc operates in Other Energy, based in SAN ANSELMO.
No verified homepage on file yet — operating evidence is limited to the public record.
Capital & rounds (filed)filed
Summa Resource Holdings Llc has raised $12M in disclosed capital across 3 recorded rounds, aggregated from public filings. Its latest round is modeled as Series A (a $4.0M–$15M round).
Largest single filing: $4.7M on 2008-12-12.
Most recent recorded round closed around 2008-12-12.
Valuation (modeled)modeled
Provath models Summa Resource Holdings Llc at approximately $49M (range $6.0M–$267M). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.
Read: Fair. Modeled value is 0.77× the median modeled value of Series A Other Energy companies in 2007–2009 (32 peers) — value vs value, same stage and era. Within the normal band (77% of peer median) for its niche.
Financing rhythm & timingmixed
Last raise 17.6 yr ago; this sector typically re-raises about every 12 months.
Silent for over 3× the sector's normal cadence.
The last round was 1.3× smaller than the prior — a bridge or down round.
Comparablesmixed
Capital scale ranks ahead of 72% of Other Energy peers (2049 compared).
Modeled value ranks above 71% of those peers.
Closest niche peers: Turbine Air Systems, Ltd., Novus Energy Inc., Plutonic Power CORP, Glacier Bay, Inc., Sino Clean Energy Inc.
Peoplefiled
1 named person 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.