Prosecutors investigating IBM Korea, a subsidiary of the US computer giant, last week indicted 48 people on bribery and other irregularities.
The Fair Trade Commission (FTC) said it had filed a complaint against IBM Korea and other businesses linked to the biggest corporate corruption case involving a foreign company or subsidiary doing business in South Korea.
"Businesses, if involved in bidding irregularities, are liable to a ban from participating in future government procurement projects according to law," Shin Yong-Ho, an FTC spokesman, told.