Fusion Energy Solutions, Inc.
Other Technology · Tempe, Arizona
Fusion Energy Solutions, Inc. is a other technology company based in Tempe, Arizona, incorporated in 2017. It has raised at least $22.6 million across 15 known rounds, of which $19.7 million was reported to the SEC on 15 Form D filings, most recently in 2025.
Explore Fusion Energy Solutions and FUSION Energy Solutions of Hawaii, innovating since 1998 to revolutionize clean energy. Discover more.
| Date | Round | Amount | Raised to date | Lead investor | Source |
|---|---|---|---|---|---|
| 2026-05-29 | — | $2.5M | $22.6M | SEC Form D | |
| 2026-04-30 | — | $371K | $20.1M | SEC Form D | |
| 2025-09-26 | — | $60K | $19.7M | SEC Form D | |
| 2025-07-17 | — | $2.0M | $19.7M | SEC Form D | |
| 2025-06-20 | — | $130K | $17.6M | SEC Form D | |
| 2025-05-14 | — | $700K | $17.5M | SEC Form D | |
| 2025-04-25 | — | $25K | $16.8M | SEC Form D | |
| 2024-01-09 | —+1 amd | $4.4M | $16.8M | SEC Form D | |
| 2022-05-05 | —+2 amd | $10.0M | $12.4M | SEC Form D | |
| 2022-01-05 | —+1 amd | $2.1M | $2.3M | SEC Form D | |
| 2021-10-08 | — | $126K | $226K | SEC Form D | |
| 2021-07-27 | — | $100K | $100K | SEC Form D | |
| 2019-06-20 | — | $0 | 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.