Went to their website. And I didn't really see anything that looks like civilians. Maybe there is another source.
The "civilian" style figures are rarely used in their advertising and promotion. If you go to the auction site, try searching the characters' "real" names, like search "Heroclix Tony Stark," or "Heroclix Bruce Wayne" (and Peter Parker, Bruce Banner, etc.) and you will find a variety of this type of figures in different poses.