Particle Industries, Inc.
Other Technology · San Francisco, California
Particle Industries, Inc. is a other technology company based in San Francisco, California. It has raised at least $136.8 million across 8 known rounds, of which $132.1 million was reported to the SEC on 8 Form D filings, most recently in 2025.
| Date | Round | Amount | Raised to date | Lead investor | Source |
|---|---|---|---|---|---|
| 2025-09-12 | — | $5.0M | $136.8M | SEC Form D | |
| 2024-10-24 | — | $12.4M | $131.9M | SEC Form D | |
| 2024-10-24 | — | $12.2M | $119.5M | SEC Form D | |
| 2021-11-30 | — | $30.0M | $107.3M | SEC Form D | |
| 2019-11-18 | — | $40.0M | $77.3M | SEC Form D | |
| 2017-08-02 | —+1 amd | $27.7M | $37.3M | SEC Form D | |
| 2017-08-02 | — | $4.9M | $9.6M | SEC Form D | |
| 2014-07-11 | — | $4.8M | $4.8M | 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.