SSIS is a not-for-profit organisation. SSIS is an affiliated company of the China-Singapore Suzhou Industrial Park Development Group (CSSD). CSSD was founded as a partnership between the governments of Suzhou and Singapore.

China Singapore International Education Service (CSIES), also an affiliated company of CSSD, provides professional management services in education business and administrative support for SSIS. In addition to SSIS, CSIES provides services to Zhangjiagang Singapore International School, and SIP Landmark Skylight International Kindergarten

The Management Committee of SSIS is made up of five directors drawn from the management of CSSD and CSIES and two independent directors from the Suzhou Education Bureau and the SIP Education Bureau.