Contact
We respond promptly to defense partnership, commercial solution, and technical meeting inquiries.
COMPANY INFORMATION
Company Information
Company Name
J-Company Co., Ltd. 주식회사 제이컴퍼니
Founded
July 2018
CEO
Sung-Uk Jang (장 성 욱)
Business Areas
Semiconductor · RF · Defense · Digital Signal Processing — Engineering
Address
509 Sinil IT Yuto Knowledge Industrial Center, 13 LS-ro, Gunpo-si, Gyeonggi-do 15807, Republic of Korea
Inquiry Channel
Please contact our CEO email sujang@j-com.co.kr directly.
Website
CONTACT CHANNELS
Inquiry Channels
Tag the email subject so we can route it to the appropriate desk.
Defense Partnership
Defense software, RF design, prototype development, and mass-production collaboration proposals.
Tag email subject with [Defense]
Commercial Solutions
Tunnel emergency broadcasting, EV chargers, industrial RF solution adoption, and technical collaboration.
Tag email subject with [Commercial]
General Inquiry
Hiring, collaboration proposals, and any other inquiries.
Tag email subject with [General]
DIRECT MAIL
Email the CEO directly
All defense, commercial, and technical-meeting inquiries are routed through the CEO email.
CONTACT
sujang@j-com.co.kr
Please prefix the subject with one of [Defense] ·
[Commercial] ·
[General]
so we can route your inquiry quickly.
LOCATION
Visit Us
HEAD OFFICE
J-Company Headquarters
Road Address
509 Sinil IT Yuto Knowledge Industrial Center,
13 LS-ro, Gunpo-si, Gyeonggi-do 15807
Visit Notes
Please coordinate visits in advance.
Schedule by direct email.
Schedule by direct email.
Office Hours
Weekdays 09:00 – 18:00 (closed weekends and public holidays)