The City of Mississauga is making the following changes to its senior leadership team, effective Thursday, May 1, 2025:
Commissioner Corporate Services, Chief Financial Officer and Treasurer
Marisa Chiu, current Chief Financial Officer and Treasurer, will become the Commissioner of Corporate Services, Chief Financial Officer and Treasurer. Chiu joined the City in March 2023, and has overseen the development and adoption of two City budgets. Before joining the City, Chiu was the Comptroller of Finance and Enterprise Risk and Interim Executive Officer of Finance at the Toronto District School Board, where she managed a diverse portfolio and a $3.5 billion budget. In her new portfolio as Commissioner, Chiu will continue to manage the Finance division, as well as oversee the Corporate Business Services and Information Technology divisions.
Biography: Marisa Chiu
City Solicitor and Commissioner of Legislative Services
Graham Walsh will take on the new portfolio of City Solicitor and Commissioner of Legislative Services. Walsh returned to the City of Mississauga in 2024, having previously served as the City’s Deputy City Solicitor from 2018 to 2023 and Legal Counsel from 2012 to 2017. He also served as Solicitor and Director of Legal Services for the Region of Waterloo from 2022 to 2024. In his new portfolio, Walsh will continue to manage Legal Services, while taking on oversight of the Legislative Services and Human Resources portfolios.
Biography: Graham Walsh
Commissioner of Community Services
Raj Sheth will assume the role of Commissioner of Community Services. Sheth is currently the Commissioner of Corporate Services, a position he has held since May 2023. Sheth has been with the City of Mississauga for 30 years, serving in progressively senior roles including Director of Facilities and Property Management where he oversaw the building of many City facilities, including community centres, libraries and fire stations. In the role of Commissioner of Community Services, Sheth will oversee the following service areas: Recreation and Culture; Library; Parks, Forestry and Environment; Facilities, Planning & Development; and Enforcement.
Biography: Raj Sheth
These organizational changes were recommended by City Manager and Chief Administrative Officer (CAO) Geoff Wright and were finalized through Mayoral decisions.