Samsung Electronics Co., Ltd., LG Electronics Inc., Hyundai Motor Company, CJ, Kiswire Ltd., Lotte Confectionery Co., Ltd., Seoul Dairy Cooperative, Hyundai Petrochemical Co., Hyundai Hysco Co., Ltd, INI Steel, Kumkang Shoe Company, Kumho Industrial Co.,Ltd., Nasan, Tongyang Magic Co., Ltd., Lotte Canon, Rinnai Korea Corporation, Union Steel, Boryung Pharmaceutical Co., Ltd., Saehan, Aekyung Industrial Co., Ltd., LG Household & Health Care Ltd., Pacific Corporation, TS Corporation, Lotte Chilsung Beverage Co., Ltd, Samyang Corporation, Woongjin Foods, Daewoo Electronic Components. Co. Ltd, Daewoo Carrier, Samsung SDS, Samsung Electro-Mechanics, Hynix Semiconductor Inc., LG Siltron Inc, ESTec Corporation, Hyundai Rotem corp., KT&G, FILA Korea, E-land, Clifford Inc., Donghee Corporation, Ilshin wells co. ltd, SAMT Co., Ltd, SL Electronics Co., Ltd., SSCP, Hyundai PowerTec Co., Ltd, Doosan Heavy Industries & Construction Co., Ltd., Doosan Infracore, Johnson Controls, Daewoo Shipbuilding & Marine Engineering Co., Ltd., etc.
Kookmin Bank, Woori Bank, Standard Chartered Bank, Seoul Bank, Shinhan Investment Corp., Industrial Bank of Korea, KDB Daewoo Securities Co., Ltd., DB Financial Investment, Dongwon Securities Co., Ltd., Samsung Life Insurance Co., Ltd., Samsung Fire Insurance, Samsung Capital Co., Ltd., Samsung Asset Management, Samsung Card Co., Ltd., National Federation of Fisheries Cooperatives, Yu Hwa Securities Co., Ltd., the Korea Stock Exchange, Hana Bank, KOSDAQ, Hyundai Capital Services, Inc., Hyundai Marine ＆ Fire Insurance Co., Ltd., LG Capital Corporation, SIS Claim Adjustment Co., LG Card Co., Ltd., LIG Life Insurance Co., Lotte Card Co., Ltd., Credit Guaranty Funding, Seoul Guarantee Insurance Company, Kyobo Life Insurance, Daehan Life Insurance, Korea Technology Finance Corporation, Yuanta Securities Korea Co., Ltd., etc.
Korea Post (Office of Postal Service), the Ministry of Finance and Economy, ROK air force headquarters, National Pension Corporation, Health Insurance Corporation, Supreme Court, Government Employees Pension Corp., the Korea Housing Corporation, Korea Housing Finance Corporation, the Korea Expressway Corporation, Environmental Technology Development Center, Korea Electric Testing Institute, Korea Institute of Public Finance, KOSDAQ, Korean electric power corporation, Korea National Oil Corporation, Human Resources Development Service of Korea, National Computerization Agency, Busan Port Authority, The Foundation for the Preservation of Cultural Properties, the Korean Horse Affairs Association, Korea Labor Welfare Corporation, Korea Communications Agency, Office of Waterworks, Seoul Metropolitan Government, Digital Accounting and Budget, Korea Export Insurance Corporation, Korea Electric Power Research Institute, etc.
Logistics distribution sector
KORAIL Retail Co., Ltd., GS home shopping, GS Retail, Hyundai Merchant Marine Company Limited, Glovis Co. Ltd, Samsung C＆T Corporation, PSA Hyundai Pusan New-port Terminal, LG Distribution, SK Global, Seo Won Distribution Co., Ltd., Amway Korea, Altwell Corp., Coway Co., Ltd., Woongjin Thinkbig Co., Ltd., DHL Korea, Pan Ocean Shipping Co., Ltd.
LGCNS, SKC&C, PosData, DNS Data System, CJ Internet, NHN, JC Entertainment, Westin Chosun Hotel, Lotte Hotel, etc.