Background: To improve employment outcome, systematic research that is based on demandside needs is needed to clarify how employer practice factors can affect customized training efforts. Objective: The purpose of this study is to report the results of a scoping review to identify the best employer practices that are used to improve customized training efforts and results for people with disabilities in the workplace. Method: A scoping review of demand-side employment literature was conducted. Five databases were searched for articles published between 1985 and 2017. After filtering articles based on the search criteria, the final number of articles included in the analysis was 27. Findings: We identified three key themes related to customized training efforts. These include: (a) employment support, (b) work values, and (c) employment temperature. Conclusion: The findings of this scoping review provide valuable information for disability employment professionals and rehabilitation counselors to engage and assist employers in relation to customized training efforts.