The current study extends previous work on gendered workplace attitudes by manipulating the workplace gender composition (CEO gender, employee gender) of traditional male and female employment sectors. Participants reported general financial investment interest in purported male-role congruent (science laboratory) and female-role congruent (daycare) start-up companies, where CEO gender and employee gender were orthogonally manipulated. Participants had more favorable investment attitudes toward daycares when the CEO was a woman, and especially favorable investment attitudes when both the CEO and employees were women. These findings were stronger for participants higher in hostile sexism. For science laboratories, participants reported equivalent investment attitudes, regardless of CEO gender, as long as the employee gender composition matched the CEO gender (i.e., female CEO + female employees). These findings suggest that social role expectations influence investment attitudes in predictable ways for traditional female employment sectors, but in more nuanced ways for traditional male employment sectors.