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USA · Private · heronpower.com
Solid-state transformers
Open roles
54
▲ 1 since 2026-11-04
Federal awards
—
none found
Last private raise
$138M
Form D · 2026-02-06
SEC filings
2
latest 2026-02-20
HIRING54 open roles (+1 since Nov 4, 2026)
Biggest teams: Engineering 34, Commercial 11, Operations 8, Finance 1.
+ THESISOTHERHeron Power and NiSource announce US data centre and BESS-focused deals with Vantage, Microsoft
Energy-Storage.news: Heron Power and NiSource have separately announced US data centre-focused deals involving battery energy storage systems (BESS) in recent days.
energy-storage.news →+ THESISPOLICYSection 232 tariffs on copper, aluminum and steel
50% on the metals, 25–50% on many derivative products, and 15% on certain metal-intensive electrical grid equipment through 2027 (last modified Apr 6, 2026). Affects Transmission & equipment.
+ THESISPOLICYSPEED Act (federal permitting reform)
Would narrow NEPA reviews and litigation timelines for energy and infrastructure projects, including transmission. Affects Transmission & equipment.
+ THESISHow it works
Coils wound on an iron core raise voltage for long-distance lines and lower it again near customers. Every new plant and data center needs them, and lead times now run years.
OPEN IN 3D →Read from SEC 8-Ks (bankruptcy, default, delisting, restatement, impairment, restructuring), cash runway in annual reports, Form D raises and the 30-day hiring trend. A prompt to look closer, not a credit rating.
2026-11-042026-11-09
By team
Sources: company job boards (daily), SEC EDGAR, USAspending.gov, and the reviewed technology spreadsheets. Public records only cover US entities, so foreign companies and private firms that don't file will show gaps.
By location
Companies file a Form D within 15 days of selling shares privately. “Sold” is the amount raised so far in that offering; amended notices (D/A) update earlier ones.
| First sale | Notice | Offered | Sold |
|---|---|---|---|
| 2026-02-06 | D · filed 2026-02-20 | $140M | $138M |
| 2025-05-13 | D · filed 2025-05-28 | $43M | $43M |
No federal grants, contracts or loans found on USAspending.gov under this company's US entity name.
Policy that applies
No minerals, policies or partners linked yet. Add them in the review spreadsheet.
2026-10-26 · other
Heron Power and NiSource announce US data centre and BESS-focused deals with Vantage, MicrosoftEnergy-Storage.news: Heron Power and NiSource have separately announced US data centre-focused deals involving battery energy storage systems (BESS) in recent days.Only Form D notices on file (shown at left).