BuddyPress.org

There’s 2 ways of doing this.

1. You could modify the members-loop template (see the BuddyPress Template Hierarchy for details on how that’s done). See here. You would just add bp_member_profile_data( 'field=the field name here' ); to the template.

2. Add this to your theme’s functions.php file:

function add_info_to_members_loop() {
    echo bp_get_member_profile_data( 'field=the field name here' );
}
add_action( 'bp_directory_members_item', 'add_info_to_members_loop' );