In April 2015, a group of IT workers banned together to file a dispute against the banking company with the intent to get it eventually approved as a nationwide. The case was taken up in the U.S. District Court for the Southern District of New York and was thereafter referred to as Korenblum et al. v. Citigroup Inc., case number 1:15-cv-03383. The lawsuit was filed specifically on behalf of members hired by Citigroup but sourced by third party staffing agencies.