Semi Zabala

semizabala.com ↗ ·San Sebastián ·Seed

Semi Zabala is a Basque power-semiconductor company that designs, manufactures, qualifies and sells gallium nitride (GaN) HEMT devices and integrated circuits for high-reliability, high-performance power electronics, with a specific focus on radiation-hardened parts for space applications. It claims industry-leading 600V radiation-tolerant performance versus roughly 200V from competitors, and runs an end-to-end model with head offices in Donostia-San Sebastián and a production/test facility in Zubieta (Eskuzaintzeta industrial estate) opened under its 'Beyond The Power' industrial initiative. In June 2025 it closed an €8.51M financing package (≈€4.81M equity plus convertible note and bank debt) and later added corporate investment from Fagor Electrónica and MONDRAGON Ventures.

Founded
2022
Founders
2
Total funds raised
€5.3M
Rounds
1
Investors
8
Last round
Jun 2025
SectorsSemiconductors, GaN power electronics, Space technology, Deeptech & Hardware, Advanced manufacturing Start-up MapDeeptech & Hardware › Semiconductors, compute & AI infrastructure

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Founders

Jim Larrauri
Chief Strategy Officer & Co-Founder
Simon Wainwright
CEO, President & Co-Founder

Global models 5

Innoscience
Designs, makes in its own fabs and sells GaN power HEMTs and ICs, like Semi Zabala's in-house model, but at mass-market scale.
$1B+Comparable
Transphorm
United States · www.transphormusa.com ↗
Designed, qualified and sold high-voltage (650V+) GaN power FETs for high-reliability power electronics before Renesas bought it.
$200MComparable
GaN Systems
Venture-backed GaN power transistor company that sold 100V–650V HEMTs for high-performance power conversion until Infineon bought it.
$150MComparable
VisIC Technologies
Develops and sells high-voltage GaN power devices and modules for demanding, high-reliability uses such as automotive inverters.
$100MComparable
Cambridge GaN Devices
United Kingdom · camgandevices.com ↗
Fabless-to-product GaN power-semiconductor start-up that designs and sells 650V GaN HEMTs and integrated power ICs.
$90MComparable

In the same niche 25 others

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Notes: Most funded first

Investors 8

Open as list →
Clave Capital
clavemayor.com
Seed 2025 Spain
Elkargi
www.elkargi.es
Seed 2025 Spain
SPRI
www.spri.eus/en/venture-capital
Seed 2025 Spain
MONDRAGON Ventures
www.mondragon-corporation.com/en/ventures
Investor Spain
Ap Tech Ventures 2
Seed 2025 HQ unknown
Applied Technology Ventures (Ap Tech Ventures)
Seed 2025 United States
Seed 2025 United States
Fagor Electrónica
Investor Spain

Funding rounds 1

DateRoundAmountLead
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