The effective conservation management of declining pollinators requires evidence-based policy and planning. In Ontario, Canada, pollinator-relevant policy and management plans are currently being developed by various ministries with diverse mandates. This review gathers relevant scientific findings to help guide policy decisions and implementation, focusing on the available information for wild bumble bees. Species that occur in Ontario also occur elsewhere in Canada and the United States. Thus, relevant studies from other jurisdictions are also included if they consider species that occur in Ontario. Evidence for declines, review of known and suspected threats, and management recommendations based on this information are presented.