Team Strategies and Tools to Enhance Performance and Patient Safety (TeamSTEPPS™) is a tested strategy for improving communication and climate in hospitals. It is a promising but untested tool among school-based mental health teams. We examined the psychometric properties of the TeamSTEPPS Teamwork Perceptions Questionnaire (T-TPQ) and Teamwork Attitudes Questionnaire (T-TAQ) among 167 school mental health team members. Team members worked for one of five agencies in 33 K-8 urban public schools. Exploratory factor analyses and descriptive data are presented. For both the T-TPQ and T-TAQ, a unitary factor structure best fit the data for this sample. The T-TPQ and T-TAQ were not significantly correlated with one another and total scores did not significantly differ by staff role. Agencies differed in T-TAQ results, and one agency had lower T-TAQ total scores relative to other agencies. Results suggest that the factor structures are different among school mental health teams than among other healthcare providers.