The rounds this investor is named on, who it invests beside, and where it shows up.
Named on 6 rounds in the feed, most often at Series B and in Energy.
Venture capitalCambridge, MA 02142finestructure.vcRounds from 2021-12-01 to 2026-09-02
| Company | Round | Amount | Announced | Role |
|---|---|---|---|---|
iPronics A pioneer in silicon photonics-based optical circuit switching for AI infrastructure | Series B Verified against 4 of 10 sources[ REPORTED LATER ]: This round was announced before Fireround first saw it. It stays in the company's history, not in Latest, Trending, or alerts. | $125M | 2026-09-02 | [ PART ] |
Aalo Mass-manufactured nuclear power plants designed to provide energy for various applications, including data centers. |
Series B Verified against 1 of 2 sources[ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. |
| $100M |
| 2025-08-19 |
| [ PART ] |
iPronics A pioneer in silicon photonics-based optical circuit switching for AI infrastructure | Series A Developing, 3 sources[ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $20.5M | 2025-01-29 | [ PART ] |
Veir A superconducting power delivery systems developer | Series B Verified against 1 source[ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $75M | 2025-01-28 | [ PART ] |
Mainspring Energy Mainspring Energy sells linear generators for flexible, low-emissions power solutions to businesses across various industries. | Series E Developing, 2 sources[ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $150M | 2022-05-26 | [ PART ] |
Commonwealth Fusion Systems Commonwealth Fusion Systems sells advanced fusion energy technology, particularly high-temperature superconducting magnets and fusion power plants, targeting energy providers and stakeholders in the clean energy sector. | Series B Verified against 1 of 3 sources[ HISTORY ]: An earlier round, from the company's own announcement, found while researching the company. Checked like any round, but not new, so it stays out of the daily feed and alerts; a date range shows it. | $1.8B | 2021-12-01 | [ PART ] |