GLVAC

What GLVAC does

GLVAC (Kunshan Guoli Electronic Technology Co., Ltd.) is a Chinese specialty manufacturer of vacuum electronic components serving semiconductor equipment, new energy vehicles, scientific research, energy infrastructure, security and inspection, and aerospace customers. The company's portfolio spans vacuum capacitors, high-voltage relays rated up to 70 kVDC, hydrogen thyratrons capable of 10 GW switching, CW and pulsed magnetrons, high-efficiency klystrons (62% efficiency at 800 kW reported), DC and AC contactors, vacuum interrupters, and power distribution units (PDU, BDU, CDU) targeted at eVTOL and EV powertrain applications. Underlying technology is built on proprietary ceramic vacuum sealing and longitudinal magnetic field designs, developed over 60 years of accumulated know-how and institutionalized through the GuoLi Industrial Technology Research Institute in collaboration with the Chinese Academy of Sciences.

The company operates as a publicly listed Chinese entity, monetizing primarily through direct sales of components and subsystems to OEM customers including AMEC and NAURA in semiconductor equipment, CATL and SEVB in batteries and EVs, and scientific institutions such as those associated with CSNS and CEPC. Go-to-market combines anchor long-cycle supply agreements with selective international channel partnerships, most recently a 2024 arrangement with Sterling Tools Ltd. for India. Revenue mechanics are anchored by long qualification cycles in semiconductor and automotive applications, with diversification underway into eVTOL and accelerator-driven scientific infrastructure markets.

Name

GLVAC

Legal name

Kunshan Guoli Electronic Technology Co., Ltd.

Website

https://glvac.com

Company type

Public

Founded year

2013

Operating status

Operating

Headcount range

501–1,000 employees

Short description

GLVAC (Kunshan Guoli Electronic Technology) is a Chinese specialty manufacturer of vacuum electronic components — including capacitors, contactors, magnetrons, klystrons, and thyratrons — supplying semiconductor equipment makers (AMEC, NAURA), battery and EV customers (CATL, SEVB), and scientific and aerospace programs.

Ownership category

akta.pro rank

Product category

Vacuum Electronic Components

NAICS

Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Switchgear and Switchboard Apparatus Manufacturing (335313), Relay and Industrial Control Manufacturing (335314), Electrical Equipment Manufacturing (33531)

SIC

Electronic Components, Nec (3679), Electronic Coils, Transformers & Other Inductors (3677), Electronic Components & Accessories (3670), Switchgear & Switchboard Apparatus (3613)

akta.pro primary industry

Passive Components (Resistors, Capacitors, Inductors, Ferrites) (IMAGAJAA)

akta.pro secondary industries

Low-Voltage Switchboards & Panelboards (LV distribution panels, MCCs, switchboards) (IMAGAEAA), Thyristors (SCRs/Triacs/Diacs) (HDAHAHAF)

Keywords

• Vacuum electronic components
• High voltage relays
• Vacuum capacitors
• Semiconductor equipment parts
• Power distribution components

Headquarters

HQ city

Kunshan

HQ country

China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Vacuum Electronic Component Sales: GLVAC generates revenue through the manufacture and sale of vacuum electronic components including vacuum capacitors, high voltage relays, hydrogen thyratrons, magnetrons, klystrons, power distribution equipment, AC contactors, and vacuum interrupters. The company sells directly to enterprise customers in semiconductor, new energy, scientific research, security, energy, and aerospace sectors.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

GLVAC manufactures and sells vacuum electronic components for high-frequency, high-voltage, and high-power applications. Its portfolio spans vacuum capacitors, high-voltage relays, hydrogen thyratrons, magnetrons, klystrons, power distribution units, DC contactors, AC contactors, and vacuum interrupters. These components serve semiconductor equipment, new energy vehicles, scientific research, security inspection, energy infrastructure, and aerospace customers.

Product overview

GLVAC is a global expert in vacuum electronics applications, offering a comprehensive portfolio of high-frequency, high-voltage, and high-power electronic components. The product portfolio centers on vacuum electronic devices including Vacuum Capacitors (fixed, variable, trimmer, and motorized types), High Voltage Relays (vacuum relay, reed relay, gas-filled relay, SPST, SPDT, DPDT, latching types), Hydrogen Thyratrons, Magnetrons (CW and pulse types), Klystrons, Power Distribution & Protection systems (PDU, BDU, CDU, custom modules), DC Contactors, AC Contactors (R Series, CKJ11, CKJ5, CV/CHV, 7.2kV, 12kV series), and Vacuum Interrupters (for AC contactors, circuit breakers, isolating switches, and tap changers). These products serve demanding applications in semiconductor equipment, new energy vehicles, scientific research, security & inspection, electric power generation, and aerospace sectors. The company operates with over 60 years of experience in electric vacuum device manufacturing.

Differentiator

Problem solved

Functional benefit

Brands

• Guoli Yuantong: Sub-brand for new energy technology products including DC contactors for electric vehicles

Products and services

• Vacuum Capacitor Ceramic vacuum capacitors with over 60 years of manufacturing experience, providing high-precision, low-loss, and high-reliability solutions for semiconductor matching systems, photovoltaic heterojunction, induction heating, and communication broadcasting applications.
• High Voltage Relay Vacuum relays utilizing ceramic vacuum sealing technology to seal contacts from atmosphere, designed for applications where working voltage can be up to 70kVDC, used in short wave communication, communication satellites, radar, submarine cable, RF applications, and high voltage testing instruments.
• Hydrogen Thyratron High-power gas discharge devices serving as core pulsed switches with switching power reaching up to 10 GW, using hydrogen or deuterium as arc discharge dielectric with advantages of high working voltage, high pulse current, quick fire lighting, low trigger voltage, high efficiency, and long life.
• Magnetron Microwave devices utilizing cathode technology for high efficiency, long life, and strict quality control. Includes CW (continuous wave) magnetrons and pulse magnetrons for medical linear accelerators, irradiation accelerators, container safety inspection systems, industrial non-destructive testing, and microwave industrial heating.
• Klystron
• Power Distribution Unit (PDU) Complete PDU and BDU systems designed using contactor product experience, offering control, product electrical, magnetic, and mechanical simulation with full development support and integration solutions.
• DC Contactor High voltage DC contactors serving as DC high voltage and high current switches with advanced design, highly reliable sealed arc extinguishing technology, and unique packaging process for quick arc interruption. Used in new energy vehicles, charging stations, and eVTOL applications.
• AC Contactor Vacuum ceramic AC contactor solutions utilizing vacuum interrupter technology with arc extinguishing technology and modular design, suitable for high voltage, current, power, and frequency applications in harsh environments including flammable and explosive settings.
• Vacuum Interrupter Core component of high and medium voltage power switches that cuts off voltage arc through vacuum insulation and restrains current quickly. Includes variants for AC contactors, circuit breakers, isolating switches, and tap changers for power distribution and heavy industrial applications.
• P-band High-Power Metamaterial Klystron High-power klystrons for amplifying oscillating microwave frequency signals, converting electron beam kinetic energy into microwave energy through velocity and density modulation. Used in high energy physics, China Spallation Neutron Source, high energy industrial CT, and high power microwave applications. The 650 MHz continuous wave prototype achieves 62% microwave conversion efficiency at 800 kW power level.

Quantifiable outcome

• Switching power up to 10 GW for hydrogen thyratrons
• +2 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Six partnerships are on record, tiered core and strategic.

• AMEC (Advanced Micro-Fabrication Equipment Inc. China)coreStrategic or Co-development Partner · 28 March 2026GLVAC has maintained a 10-year strategic partnership with AMEC, a leading semiconductor equipment manufacturer in China. GLVAC supplies vacuum electronic components for AMEC's semiconductor manufacturing equipment, and received the 10-Year Strategic Partner Award at AMEC's Global Supplier Conference in Shanghai.
• China Spallation Neutron Source (CSNS)coreStrategic or Co-development Partner · 7 June 2025GLVAC collaborated with the accelerator RF team of China Spallation Neutron Source (CSNS) to successfully develop the world's first P-band high-power metamaterial klystron. This represents a major breakthrough in China's independent R&D of P-band continuous wave klystrons.
• University of Electronic Science and Technology of ChinacoreStrategic or Co-development Partner · 7 June 2025GLVAC collaborated with the research group of Professor Zhaoyun Duan from the School of Electronic Science and Engineering at University of Electronic Science and Technology of China for the development of the world's first P-band high-power metamaterial klystron.
• NAURA Technology Group Co., Ltd.coreStrategic or Co-development Partner · 9 February 2025NAURA is a leading enterprise of integrated circuit high-end technological equipment in China. GLVAC collaborates with NAURA to provide semiconductor equipment components. NAURA awarded GLVAC the 2025 Annual Innovation Partnership Award recognizing excellence in technological collaboration.
• Sterling Tools Ltd.strategicStrategic or Co-development Partner · 6 November 2024Guoli Yuantong (a GLVAC subsidiary) signed a cooperation agreement with Sterling Tools Ltd., an Indian listed company. The partnership aims to expand GLVAC's presence in the Indian market for new energy and electric vehicle components.
• Institute of High Energy Physics, Chinese Academy of SciencescoreStrategic or Co-development Partner · 18 November 2016Established the GuoLi Industrial Technology Research Institute of Vacuum High-power Devices in collaboration with the Institute of High Energy Physics of CAS and Kunshan government. The institute focuses on high-power and high-efficiency klystron development for scientific research facilities including large circular electron-positron colliders.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Siemens: Siemens manufactures vacuum interrupters, switchgear, and industrial control products for energy and industrial markets — overlapping with GLVAC's contactor, relay, and power-distribution business within a broader diversified portfolio.
• ABB: ABB offers vacuum interrupters, medium-voltage switchgear, and broader power distribution equipment — overlapping with GLVAC's contactor, interrupter, and PDU portfolio but as part of a much larger electrical-equipment portfolio.
• TE Connectivity: TE Connectivity manufactures relays, contactors, and high-voltage switching components for industrial, automotive, and energy applications — broadly comparable to GLVAC's relay and contactor business.

Direct peers

• Eaton: Eaton produces vacuum interrupters, vacuum contactors, and DC contactors for EVs and industrial applications, making it a directly comparable peer across GLVAC's switching and protection product lines.
• Thales Group: Thales designs and manufactures high-power klystrons, traveling-wave tubes, and microwave vacuum electronic devices for radar, scientific, and accelerator applications — comparable to GLVAC's klystron and scientific-research business.
• Meidensha Corporation: Meidensha manufactures vacuum interrupters, vacuum circuit breakers, and power distribution equipment — a directly comparable peer in GLVAC's power T&D and energy-electrical vertical.
• Toshiba Electronic Devices & Storage: Toshiba is a major global manufacturer of vacuum interrupters, vacuum circuit breakers, and power-semiconductor switching devices — directly comparable to GLVAC's vacuum interrupter and contactor business.
• Sensata Technologies: Sensata is a leading manufacturer of DC contactors and battery management components for electric vehicles and energy storage — directly comparable to GLVAC's Guoli Yuantong subsidiary product line.
• Communications & Power Industries (CPI): CPI manufactures klystrons, magnetrons, thyratrons, and other vacuum electronic devices for scientific, medical, defense, and industrial markets — the closest global analog to GLVAC's vacuum-electronics portfolio.
• Richardson Electronics: Richardson Electronics manufactures and distributes vacuum tubes, klystrons, magnetrons, and other electron devices — directly comparable to GLVAC's core vacuum capacitor, thyratron, and tube product lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@glvactech
• Facebookfacebook.com/glvactech
• LinkedInlinkedin.com/company/kunshan-guoli-electronic-technology-co-ltd
• Instagraminstagram.com/glvactech

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

Funding overview

Funding rounds

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 GLVAC