What Vertical Horizons does

Vertical Semiconductor (doing business as Vertical Horizons), founded in 2024 and based in Cambridge, Massachusetts, is developing vertical Gallium Nitride (GaN) power semiconductor devices for high-voltage applications ranging from 40V to over 2.3kV. The technology was developed at the Massachusetts Institute of Technology and addresses the voltage-scaling limitation of lateral GaN HEMTs, which struggle beyond 700V. By making high voltage scale with device thickness and high current scale with device area, the architecture targets higher bandgap, higher switching frequency, and lower thermal resistance than incumbent silicon and lateral GaN solutions.

The company's core product is a unified vertical GaN power device platform, positioned for two primary use cases: data center power conversion (including HVDC architectures from grid to compute) and grid infrastructure / solid-state power systems for grid-to-onsite generation. System-level claims include 50% smaller power system footprint, 30% higher efficiency, and 10% lower total cost of ownership for customers. The company sells hardware (semiconductor devices) to enterprise customers—primarily data center operators and grid infrastructure operators—through a direct early access program with email-based inquiry.

The business is early-stage: 1–10 employees, roughly $18.45 million in cumulative disclosed funding across a 2024 seed round and a March 2025 financing, no publicly disclosed revenue, and no named customers. Leadership comprises CEO & Co-founder Cynthia Liao (MIT Sloan MBA, prior renewable energy and policy roles at GE and the British Embassy to China), CTO & Co-founder Dr. Joshua Perozek (MIT Ph.D. in vertical GaN transistor technologies), and Advisor & Co-founder Prof. Tomas Palacios (MIT EECS Professor, IEEE Fellow, Director of the Microsystems Technology Laboratories). The go-to-market model is consultative enterprise field sales targeting early adopters of next-generation GaN power devices.

Name

Vertical Horizons

Legal name

Vertical Semiconductor

Website

https://vertical-horizons.com

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1–10 employees

Short description

Vertical Semiconductor (Vertical Horizons) is a Cambridge, MA-based fabless semiconductor startup developing vertical Gallium Nitride (GaN) power devices (40V to 2.3kV) for data center HVDC power architectures and grid infrastructure, founded in 2024 on MIT research and backed by roughly $18.45M in disclosed funding.

Ownership category

akta.pro rank

Product category

Power Semiconductors

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

High-Voltage, Power Discretes & Modules (IGBT/MOSFET/SiC/GaN) (HDAHAAAK)

akta.pro secondary industry

Wide-Bandgap Power Devices (SiC/GaN Discretes) (HDAHAHAG)

Keywords

• Power semiconductor devices
• Vertical GaN transistors
• Data center power conversion
• HVDC power systems
• Grid infrastructure electronics

Headquarters

HQ city

Cambridge

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Infrastructure

Revenue model

1. Vertical GaN Power Devices: Sale of next-generation vertical GaN power semiconductor devices for data center and grid infrastructure applications. Hardware-based revenue model typical of semiconductor companies.

Go-to-market motion1 record

Distribution channels1 record

Core offering

Vertical Semiconductor designs and manufactures next-generation vertical Gallium Nitride (GaN) power semiconductor devices for high-voltage applications ranging from 40V to 2.3kV. The devices target data center HVDC power architectures and grid infrastructure solid-state power systems, delivering 50% smaller footprint, 30% higher efficiency, and 10% lower total cost of ownership versus incumbent solutions.

Product overview

Vertical Semiconductor offers a unified vertical GaN (Gallium Nitride) power semiconductor platform technology. Their core product is vertical GaN power devices scalable from 40V to 2.3kV, representing a breakthrough manufacturing approach that overcomes the limitations of lateral GaN HEMTs which struggle to scale past 700V. The platform enables 50% smaller footprint, 30% higher efficiency, and 10% lower total cost of ownership for data center and grid infrastructure power applications.

Differentiator

Problem solved

Functional benefit

Products and services

• Vertical GaN Power Devices

Quantifiable outcome

• 50% smaller footprint for power systems
• +3 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Navitas Semiconductor: Pure-play GaN power semiconductor company shipping GaNFast power ICs for fast chargers, data centers, and consumer applications. Direct peer in GaN-based power conversion targeting similar data center and high-efficiency power use cases.
• Efficient Power Conversion (EPC): Leading supplier of GaN-based power transistors (eGaN FETs) for a broad range of power conversion applications including data centers and automotive. Direct peer in GaN power discrete devices.
• Cambridge GaN Devices: Cambridge, UK-based GaN power device company developing high-voltage GaN transistors for power conversion. Closest comparable in terms of geography, technology focus, and target applications including data center and industrial power.
• Transphorm: GaN power semiconductor company with GaN FETs and modules spanning 40V to 1200V for power conversion applications including data center, automotive, and industrial. Direct competitor in GaN power discretes and modules.

Broad incumbents

• Infineon Technologies: Global power semiconductor leader with broad SiC, GaN, and silicon portfolios serving data center, automotive, and industrial customers. Major incumbent competing across the entire addressable market Vertical targets.
• Wolfspeed: Pure-play SiC power semiconductor leader with vertically integrated wafer fab and device portfolio targeting EV, industrial, and data center power. Primary incumbent in high-voltage power semiconductors that Vertical must displace.
• STMicroelectronics: Major SiC power MOSFET and module supplier for automotive, industrial, and data center applications. Established incumbent with scale manufacturing and broad customer relationships in high-voltage power.
• onsemi: Diversified power semiconductor supplier with a growing SiC portfolio for EV and industrial power conversion. Incumbent peer competing for similar high-voltage power-conversion sockets.
• ROHM Semiconductor: Japanese power semiconductor manufacturer with SiC and GaN product lines targeting automotive and industrial power. Broad incumbent competing in the high-voltage power electronics space.
• Renesas Electronics: Major power and analog semiconductor company with growing investments in GaN and SiC for data center, EV, and industrial applications. Broad incumbent and potential strategic competitor or acquirer.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Vertical Horizons