한국철도공사(Korea Railway / Korea Train Express)

도시철도공사(Seoul, Seoul Metro, Busan, Inchon, Daegu, Gwangju, Daejeon)

서울메트로, 신분당선 주식회사(Seoul Metro, Shinbundang(DX) Line)

POSCO(Pohang, Gwang yang) / POSCO E&C / POSCO ENGINEERING

현대중공업(Hyundai Heavy Industries)

현대제철(HYUNDAI STEEL) / 현대로템(HYUNDAI ROTEM) / 현대엘리베이터(HYUNDAI ELEVATOR)

GS Caltex / LG Chemical / LG Philips LCD / LG CNS

BOE Hydis / HYNIX SEMI conductors

한국전력(Korea Electric Power Corporation)

Samsung Electronics / Samsung SDI / Samsung SDS / Samsung TOTAL / Samsung Engineering

KAI (KOREA AEROSPACE INDUSTRIES, LTD. , 한국항공우주산업주식회사)

LS산전 / LS NIKKO 동제련

S-Oil

한화케미칼

일진전기

Korean Army, Air force, Navy

국내 골프장(Domestic Golf Course)

Others

ASIA(Japan, Taiwan, Thailand, Singapore, Malaysia, Hong Kong, Indonesia)

EU(Sweden, Czech)

Middle East(Libya)

Africa(Nigeria)