Diligence memo · auto-generated · as of July 2, 2026
Zoom Telephonics, Inc.
Zoom Telephonics, Inc. looks fair against its niche peers and is dormant on financing cadence.
Businessfiled
Zoom Telephonics, Inc. operates in Telecommunications, based in BOSTON.
No verified homepage on file yet — operating evidence is limited to the public record.
Capital & rounds (filed)filed
Zoom Telephonics, Inc. has raised $39M in disclosed capital across 5 recorded rounds, aggregated from public filings. Its latest round is modeled as Series B (a $15M–$40M round).
Largest single filing: $25M on 2020-12-04.
Most recent recorded round closed around 2020-12-04.
Valuation (modeled)modeled
Provath models Zoom Telephonics, Inc. at approximately $434M (range $61M–$1.5B). This is an algorithmic estimate from round sizes and same-niche peers — not a quoted or reported figure.
Read: Fair. Modeled value is 1.37× the median modeled value of Series B Telecommunications companies in 2019–2021 (15 peers) — value vs value, same stage and era. Within the normal band (137% of peer median) for its niche.
Financing rhythm & timingmixed
Historic cadence: a new round about every 16 months.
Last raise 5.6 yr ago; this sector typically re-raises about every 10 months.
Silent for over 3× the sector's normal cadence.
The last round stepped up 7.5× from the prior — scaling.
Comparablesmixed
Capital scale ranks ahead of 85% of Telecommunications peers (929 compared).
Modeled value ranks above 90% of those peers.
Closest niche peers: CALIENT Technologies INC, Point Broadband, LLC, Orion Labs, Inc., Dali Systems Co. Ltd., Skylake Wireless, LLC.
Peoplefiled
24 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.