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Transphorm funding, valuation and investors
Goleta GaN power semiconductor company — UCSB spinout acquired by Renesas (June 2024) after NASDAQ: TGAN run.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Not publicly disclosed
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
Not publicly disclosed
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
acquired
Stage not recorded · Goleta, California
Overview
Transphorm designs and manufactures gallium nitride (GaN) power transistors and modules for high-voltage power conversion in data centers, EVs, and industrial applications. Founded in 2007 as a UCSB spinout, the company was headquartered in Goleta, California. Transphorm went public on NASDAQ (TGAN) and in January 2024 entered an agreement to be acquired by Renesas Electronics for $339 million; the deal closed in June 2024. Transphorm operates as a Renesas subsidiary with Goleta manufacturing and R&D.
Why Transphorm is interesting
Central Coast power-electronics proof point: Transphorm commercialized UCSB gallium nitride (GaN) transistors for high-voltage conversion, went public (TGAN), then sold to Renesas for $339M (Jan 2024 agreement, closed Jun 2024) — the photonics/power cluster beyond AppFolio SaaS.
Product & use cases
High-voltage GaN power devices and modules for efficient power conversion in computing, automotive, and industrial systems.
- Data center power supplies
- EV onboard chargers and adapters
- Industrial motor drives
Key facts
- UCSB spinout — GaN power transistors (Goleta HQ)
- NASDAQ: TGAN before Renesas acquisition
- Renesas deal: $339M (agreement Jan 2024, closed Jun 2024)
- 1,000+ GaN patent portfolio cited in acquisition materials
Funding history (newest first)
Acquisition
2024-06 $339M- Renesas Electronics (lead)
IPO
2021- Public markets (NASDAQ: TGAN) (lead)
Competitive landscape
Edge: GaN efficiency and power density versus silicon — JEDEC/AEC-Q101 qualified devices in acquisition PR.
-
Infineon / GaN Systems-class direct
GaN power semiconductor competitors.
-
Silicon MOSFET incumbents incumbent
Lower-cost but less efficient alternatives.
Industries
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FAQs about Transphorm
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