We commonly attribute assertions to groups like companies and government institutions, and we want to hold them accountable for their assertions. Intuitively, we don’t attribute those assertions to the individuals performing them, but to the groups. The question is: what kind of speech act is group assertion and how does it relate to individual assertion? Is it reducible to de second? In this work, I defend an account based on having the authority to assert on behalf of the group. I take support from Lackey’s (2018) account of group assertion. I argue that her account has some important problems and I try to give a more succinct account of group assertion.