General Graphene Corp
Other Technology · Knoxville, Tennessee
General Graphene Corp is a other technology company based in Knoxville, Tennessee, incorporated in 2014. It has reported $23.6 million raised across 10 Form D filings with the SEC, most recently in 2023.
General Graphene offers industrial‑scale graphene production using roll-to-roll CVD to deliver affordable, large-area graphene film and foam.
| Date | Round | Amount | Raised to date | Lead investor | Source |
|---|---|---|---|---|---|
| 2023-07-14 | — | $3.4M | $23.4M | SEC Form D | |
| 2023-07-14 | — | $4.7M | $20.0M | SEC Form D | |
| 2019-12-17 | — | $6.0M | $15.4M | SEC Form D | |
| 2018-09-18 | — | $7.6M | $9.4M | SEC Form D | |
| 2016-10-07 | — | $489K | $1.8M | SEC Form D | |
| 2016-06-30 | —+1 amd | $90K | $1.3M | SEC Form D | |
| 2016-03-01 | — | $672K | $1.2M | SEC Form D | |
| 2016-03-01 | — | $522K | $522K | 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.