They look like they might be lapel ID pins. Are they about 1/2" to an inch in size? Hard to tell as there isn't anything to compare for size.
Wolfsburg pins are the first three, Schahct is a millwork. Not sure about the odd 'E' pins, maybe scale weight shape? KW may be Kenworth trucking. The writing on the round pin isn't clear enough for me to read it.