Zoom Telephonics, Inc.
Telecommunications · Boston, Massachusetts
Zoom Telephonics, Inc. is a telecommunications company based in Boston, Massachusetts. It has raised at least $40.8 million across 5 known rounds, of which $38.8 million was reported to the SEC on 5 Form D filings, most recently in 2020.
| Date | Round | Amount | Raised to date | Lead investor | Source |
|---|---|---|---|---|---|
| 2026-04-14 | — | $2.0M | $40.8M | SEC Form D | |
| 2020-12-11 | — | $25.3M | $38.8M | SEC Form D | |
| 2020-05-29 | — | $3.4M | $13.4M | SEC Form D | |
| 2019-05-17 | — | $5.0M | $10.0M | SEC Form D | |
| 2016-11-07 | — | $1.6M | $5.0M | SEC Form D | |
| 2015-10-08 | — | $3.4M | $3.4M | SEC Form D |
SEC rows are Form D filings, where the amount is what was actually sold and amendments update a round rather than adding one. Press rows are split between company-issued releases or wires and editorial or third-party coverage. The total is therefore a floor: a round nobody reported is a round we cannot see. A buyout or control change appears in the timeline but is never added to the total: that money goes to shareholders, not into the company.
Form D is the notice a company files with the SEC when it sells securities without registering them. It reports the amount sold, not a valuation. Figures here are what the filing says. Where a filing is silent, the field is left blank rather than estimated. “Total raised” adds press-reported rounds that never appear in a filing, so it is a floor rather than an audited sum: press amounts are the figures the company announced, and a round nobody reported is a round we cannot see.