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.
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 Samsung Electronics Semiconductor, LG Chem, and Apple.
CEO message and company history →Four Core Business Areas
Integrated engineering services from sensor data acquisition and RF sensing to digital control and defense software.
Data Acquisition & Processing
Real-time sensor capture, signal analysis, and visualization—extracting decision-grade data from the factory floor.
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.
Digital Control & Signal Processing
FPGA-based real-time control algorithms, VHDL design, EtherCAT communication, and 12-layer PCB design capabilities.
Defense Software Platform
FPGA Multi-OS, FreeRTOS · PETALinux porting, hardware drivers, and inter-OS message routing—our core defense expertise.
Proven Project Performance
Key Partners & Clients
Long-standing engineering partner to Korea's leading defense primes and global manufacturers.
EV
Telecom
ESLDefense 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 Projects
From tunnel emergency broadcasting and EV charger modules to LG Chem powder stagnation sensors, consumer-wearable curing chambers, and Samsung semiconductor packaging heaters—mission-critical solutions for industrial customers.
View tunnel broadcasting and EV charger projects →