J-Company Profile · Engineering Capabilities
A concise introduction to the company, its core capabilities, principal business areas, and approach to engineering partnerships.
SINCE 2018 · DEFENSE & ENGINEERING
Engineering reliability that bridges
defense and industry
J-Company designs and supplies critical solutions for the defense industry and global manufacturers, built on deep engineering capabilities in semiconductors, RF, and digital signal processing.
ABOUT US
Vertically integrated engineering
Vertically integrated engineering
across semiconductor · RF · defense · digital
Led by senior engineers as a specialist core, J-Company holds end-to-end in-house development capability— from FPGA / SoC hardware design to firmware, Linux kernel, system software, and supervisory servers.
Long-standing collaborations with Korea's major defense primes—Hanwha Systems, LIG D&A, Danam Systems—form the proven foundation upon which we now supply core solutions to global manufacturers including LG Chem and Apple.
CEO message and company history →
CORE BUSINESS
Four Core Business Areas
Integrated engineering services from sensor data acquisition and RF sensing to digital control and defense software.
01 · DATA
Data Acquisition & Processing
Real-time sensor capture, signal analysis, and visualization—extracting decision-grade data from the factory floor.
02 · RF
RF Sensor Development
L / S / C / X / Ka band wideband RF Power AMP, LNA, and multi-function antennas—designed and tuned in-house end to end.
03 · DIGITAL
Digital Control & Signal Processing
FPGA-based real-time control algorithms, VHDL design, EtherCAT communication, and 12-layer PCB design capabilities.
04 · DEFENSE
Defense Software Platform
FPGA Multi-OS, FreeRTOS · PETALinux porting, hardware drivers, and inter-OS message routing—our core defense expertise.
PROVEN TRACK RECORD
Proven Project Performance
7projects
Defense projects completed
600units
EV slow-charge modules delivered
200units
EV fast-charge modules delivered
15units
LG Chem cathode line validation
PARTNERS & CLIENTS
Key Partners & Clients
Long-standing engineering partner to Korea's leading defense primes and global manufacturers.
Hanwha SystemsDefense
LIG D&ADefense
Danam SystemsDefense
LG ChemBattery
AppleConsumer Electronics
Korea ExpresswayEX
EVWisit EnergyEV
Telecom
ESLSK hynixMemory
DEFENSE
Defense Business
FPGA Multi-OS platform and wideband RF design power millimeter-wave multi-mode seeker controllers, GNSS resilience receivers, and low-altitude airspace protection systems—delivered in partnership with Hanwha Systems, LIG D&A, and Danam Systems.
Explore FPGA Multi-OS defense platform →
COMMERCIAL
Commercial Projects
From tunnel emergency broadcasting and EV charger modules to LG Chem powder stagnation sensors and consumer-wearable curing chambers—mission-critical solutions for industrial customers.
View tunnel broadcasting and EV charger projects →
NEWS & RESOURCES
Latest Updates
Explore J-Company news, media coverage, and approved public resources.
Gaon Group Invests in J-Company, a Defense RF Specialist
MoneyToday reports on Gaon Group’s investment in J-Company and the companies’ plans to pursue technology collaboration and joint business opportunities in wireless communications.