CGI Federal, a subsidiary of CGI Group, built the website, HealthCare.gov, which was plagued by error messages and slow speeds for weeks after the launch. The glitches created a political crisis for President Barack Obama, threatening the roll-out of his signature healthcare law and emboldening Republican foes to call for its repeal.
"As CMS moves forward in our efforts to help consumers access quality, affordable health coverage, we have selected Accenture to become the lead contractor for the HealthCare.gov portal and to prepare for next year's open enrollment period," the agency said in a statement.
CGI Federal said on Friday that its contract, which was originally awarded in 2011 and is scheduled to end February 28, would not be renewed.
Accenture said the contract was worth $45 million for the initial phase of the project, and the Washington Post reported that the final value of the one-year contract would be about $90 million.