xiBOSS Corporation is a Canadian professional services firm based in Toronto, founded in 2002. The company specialized in IT and business solutions, offering hybrid consulting and staffing services. Before its acquisition by S.i. Systems in September 2022, xiBOSS employed between 10 and 49 people.

The firm focused on several key areas, including IT strategy consulting, custom software development, contingency staffing, and HR consulting. Their services included disaster recovery planning, technology roadmaps, application development, and IT recruitment across Canada. xiBOSS also supported early-stage companies through its xiHUB program, providing resources and ecosystem development tailored to their needs.