Vertical Semiconductor

Vertical Semiconductor

Vertical GaN transistors for data-center power

Overview

Vertical Semiconductor focuses on power electronics for AI data centers by developing vertical gallium nitride (GaN) transistors. These transistors form a scalable platform in which current flows through the bulk of the GaN wafer, enabling higher power density and better thermal management. The vertical GaN design, compatible with standard CMOS manufacturing and demonstrated on 8-inch wafers, allows near-system-level power conversion to be placed closer to AI chips, reducing energy loss and cooling requirements. This sets the product apart from traditional lateral GaN devices and aligns with a plan to supply specialized, high-voltage transistors and integrated power delivery solutions to data center operators and hardware makers. The company’s goal is to accelerate adoption of this technology by delivering prototype packaged devices in 2025 and a fully integrated solution in 2026, supported by seed funding from investors such as Playground Global.

About Vertical Semiconductor

Simplify's Rating
Why Vertical Semiconductor is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Hardware

Industrial & Manufacturing

Energy

AI & Machine Learning

Company Size

11-50

Company Stage

Seed

Total Funding

$11M

Headquarters

Somerville, Massachusetts

Founded

2024

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Simplify's Take

What believers are saying

  • October 15, 2025 seed funding brought $11 million from Playground, JIMCO, Shin-Etsu.
  • August 19, 2026 MassCEC awarded Vertical Semiconductor $120,000 for Cambridge-Somerville job creation.
  • September 1, 2026 company coverage says its chips cut data-center energy losses about 80%.

What critics are saying

  • Vertical Semiconductor still promised samples by late 2025 and integrated product in 2026.
  • Incumbents like Infineon, Navitas, and Wolfspeed already dominate power semiconductor customer relationships.
  • If manufacturing yield stalls, the company becomes a science project before next funding.

What makes Vertical Semiconductor unique

  • MIT’s Palacios Group spent a decade proving vertical GaN architecture before commercialization.
  • Vertical Semiconductor demonstrated 8-inch-wafer CMOS-compatible devices spanning 100V to 1.2kV.
  • Cynthia Liao, Josh Perozek, and Tomas Palacios combine commercialization and deep GaN expertise.

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Funding

Total Funding

$11M

Above

Industry Average

Funded Over

1 Rounds

Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Above Average

Industry standards

$3.3M
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood
$11M
Vertical Semiconductor

Benefits

Stock Options

Growth & Insights and Company News

Headcount

6 month growth

↓ -8%

1 year growth

↓ -8%

2 year growth

↓ -8%
Cambridge Day
Aug 31st, 2026
Five Cambridge and Somerville climate tech companies receive state tax incentive.

Five Cambridge and Somerville climate tech companies receive state tax incentive. The companies will be able to put this money toward expansion through advancing research and projects, hiring more employees and offering stipends Somerville's Form Energy received the majority of a $6 million tax incentive for job creation granted to five climate tech innovation companies in Cambridge and Somerville. Form, which produces high-capacity batteries used for storing renewable energy at utility scale, earlier this year was identified as the recipient of a billion-dollar contract for energy storage from Google, and recently received $750 million in venture capital to help expand its battery factory in West Virginia. Form received $5.6 million in credits from the Massachusetts Clean Energy Center, which gave $27.2 million in tax incentives to 18 companies across the state to create more jobs. In addition to Form, four other local companies received grants. Pascal Technologies and Mantel Capture in Cambridge as well as Eden Geopower in Somerville received $100,000 in tax credits. Somerville's Vertical Semiconductor received $120,000. Some recipients also receive incentives for capital investment, specifically for leasing or buying facility space. MassCEC selected companies with a clear business plan, evidence of continued revenue gains, and were creating technology that would hinder the impacts of climate change and emissions throughout the world," said Mike Condon, the director of economic growth and partnership at MassCEC, in an interview with Cambridge Day. Condon said MassCEC's grant program, modeled after the Mass Life Sciences Center's program, is a way to help grow and retain climatetech companies in Massachusetts. Form Energy. The Somerville-based company Form Energy produces iron-air batteries designed to deliver electricity for 100 hours to create a reliable electric grid year-round. The $5.6 million incentive allowed Form to hire new employees, bringing the company's employee count to 240. Form was originally developed at MIT before it was further developed at the Somerville climatetech incubator Greentown Labs as well as the Cambridge incubator The Engine. Eden Geopower. Eden Geopower, located in Somerville, developed a "first-of-its-kind" electric reservoir stimulation technology, which uses electric pulse drilling to increase the recovery of natural resources in the ground. Overall, the technology aims "to extract natural resources out of the ground, whether its critical minerals, geothermal energy, geologic hydrogen," said Desi Hambrock, Eden Geopower Chief of Staff. The $100,000 tax incentive allows Eden Geopower "to execute our goals more quickly" by hiring more employees, Hambrock said. Overall, Eden's goal is to develop and generate "energy and resources in a way that is very low cost, but at the same time, has huge environmental impact," as is the goal of all climatetech companies, Hambrock said. Mantel Capture. Mantel Capture in Cambridge created a carbon capture system that uses molten borate salt to capture greenhouse gases in industrial boilers, kilns, and furnaces before they enter the atmosphere. The MassCEC incentive will be "super helpful" as Eden builds a bigger team at its facility at 750 Main Street in Cambridge, said Danielle Rapson, the chief operating officer of Mantel Capture. Particularly, tax incentives "really help" Eden give their interns full-time jobs, she said. Vertical Semiconductor. Located in Somerville, Vertical Semiconductor, which was originally started at MIT, is developing a semiconductor power chip that reduces energy losses in data centers. The power chip, made with vertical gallium nitride, essentially makes power systems "much more efficient," said Cynthia Liao, the co-founder and CEO of Vertical Semiconductor. The power chip reduces energy losses inside a data center by about 80 percent, Liao said. She said right now, 20 to 30 percent of energy in a data center never makes it to the center's computers. Liao is "super excited" about the $120,000 tax incentive because it allows Vertical Semiconductor to create new semiconductor engineering and research and development positions and offer stipends for employees who relocate to Somerville. Pascal Technologies. Pascal Technologies is developing efficient, non-polluting refrigerants that allow HVAC systems to put less strain on the electric grid. More efficient refrigerants are needed because "as the world needs more and more cooling, the amount of super-polluting fluorinated gas refrigerants used in these systems will increase while the extra energy usage will strain our electrical grid," said Adam Slavney, co-founder and CEO of Pascal Technologies. Tax incentives generally allow the Cambridge-based company to "offset the high cost-of-living," Slavney said. The MassCEC incentive specifically allowed Pascal to hire an additional employee, bringing its total employees to 15. A stronger. Please consider making a financial contribution to maintain, expand and improve Cambridge Day. Cambridge Day is now a 501(c)(3) nonprofit and all donations are tax deductible. Please consider a recurring contribution.

JIMCO (Abdul Latif Jameel Investment Management Company)
Nov 25th, 2025
JIMCO participates in Vertical Semiconductor's US$ 11 million seed funding round

JIMCO participates in Vertical Semiconductor's US$ 11 million seed funding round. * JIMCO participates alongside a world-class investor syndicate led by Playground Global * Supports Vertical Semiconductor's development of vertical GaN transistors, which deliver higher efficiency and power density for AI chips and data centers * Reflects JIMCO's backing of deep-tech ventures tackling global energy and infrastructure challenges JIMCO (Jameel Investment Management Company), the global investment arm of the Jameel family, today announces that the JIMCO Technology Fund has participated in the US$ 11 million seed funding round for Vertical Semiconductor, a developer of next-generation computing infrastructure technologies. Led by Playground Global, the round received additional participation from milemark - capital and Shin-Etsu Chemical. The funding will help accelerate development of vertical GaN (gallium nitride) transistors, which deliver higher efficiency and power density for AI chips in data centers. Vertical Semiconductor was founded in 2023 by Massachusetts Institute of Technology (MIT) researchers and alumni who combine deep semiconductor expertise and commercialization experience. Its vertical GaN power transistors push energy conversion closer to the chip with less power loss and heat, improving efficiency by up to 30%, and enabling a 50% smaller power footprint in AI data center racks. Onur Aydin, Managing Director, JIMCO Technology Fund, said: "Vertical Semiconductor represents the kind of deep technology innovation that can fundamentally reshape global energy and computing systems. By supporting energy efficient semiconductor technologies, we are backing the sustainable foundation of the AI and data center economy. This investment also strengthens our partnership with MIT-affiliated founders and researchers." Cynthia Liao, CEO and co-founder of Vertical Semiconductor, added: "We're thrilled to have JIMCO join this exceptional group of investors. Their support validates our vision to redefine what's possible in power electronics, and to deliver the efficiency and scalability that AI infrastructure demands. We look forward to working together to rewrite how electricity is delivered to data centers at scale." The investment reflects JIMCO's mission to back deep-tech ventures addressing global energy and infrastructure challenges. By investing in companies like Vertical Semiconductor, JIMCO reinforces its commitment to advancing technologies that enable sustainable, high-performance solutions for the rapidly expanding AI ecosystem.

Business Wire
Oct 17th, 2025
Vertical Semiconductor Raises $11 Million to Deliver the Next Wave of Power for AI Chips and Data Centers

Vertical raises $11 million to transform power delivery with vertical GaN -- designed to dramatically reduce heat and energy costs in AI data centers.

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