Online Trust Alliance does not appear in Ghostery's Blocking Options (bug list, drop-down menu, affiliation legend). Their logo is available as chrome://ghostery/content/affils/OTA.png and is shown in the "What is" pages on the web site.
iASH Europe is completely unknown to Ghostery. The "What is" pages load an image with a blank src. Example: http://www.ghostery.com/apps/demdex